A dam with automatic cleaning function

Abstract

The present invention relates to the technical field of water conservancy engineering, and in particular to a water retaining dam with an automatic cleaning function, comprising a hydraulic push rod and a water retaining plate; a plurality of water retaining plates are arranged on a river channel; each water retaining plate is rotatably connected to a plurality of hydraulic push rods; the hydraulic push rods are connected to the river channel via a rotating shaft. The electric push rod drives the connecting block, the third electric rotating shaft and the cutter to move forward, and then the third electric rotating shaft is started, thereby driving the cutter to rotate clockwise from left to right to crush the garbage, thereby preventing the garbage on the upper side of the partition plate from being too large to enter the water flow channel; the blocked garbage channel is cleared by the rotating lever, thereby improving the use effect of the present invention.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy engineering, and in particular to a water retaining dam with an automatic cleaning function. Background Art

[0002] In reality, some areas have a long dry season and a short rainy season. Therefore, during the rainy season, water is stored in dams. When the rainfall is too heavy, the dams are opened to release the excess rainwater to prevent floods. When the dams store water for a long time, the water cannot flow, resulting in a large amount of garbage gathering in front of the dams, such as foam boxes, plastic bottles, fallen branches and leaves. If these garbage are not cleaned up in time, they will pollute the water source. At the same time, the garbage will emit a foul odor, thereby polluting the air and reducing the air quality.

[0003] The existing technology is that workers hold net bags and stand by the river to salvage garbage on the water surface. However, the salvage capacity of the net bags is limited and the cleaning efficiency is low. At the same time, some large garbage cannot be salvaged by the net bags. Therefore, the net bag salvage also has limitations, and it is dangerous for workers to work by the river holding net bags. Summary of the invention

[0004] In order to overcome the disadvantages of workers using hand-held net bags to salvage garbage on the water surface, which has low cleaning efficiency and is unable to salvage large garbage through the net bags, thus having limitations, the present invention provides a water retaining dam with automatic cleaning function.

[0005] The technical scheme is: a water retaining dam with automatic cleaning function, including a hydraulic push rod and a water retaining plate; a plurality of water retaining plates are arranged on the river channel; a plurality of hydraulic push rods are rotatably connected to each water retaining plate; the hydraulic push rods are connected to the river channel through a rotating shaft; it also includes a lifting assembly, a blocking plate, a partition plate, a collection box, a first electric rotating shaft, an electric slider, a second electric rotating shaft, a lever and a crushing assembly; a water flow channel is opened on the water retaining plate; the water retaining plate is connected to a blocking plate for closing the water flow channel; the water retaining plate is connected to a lifting assembly for controlling the opening and closing of the blocking plate; the water retaining plate is provided with a first electric rotating shaft; A plurality of partition plates are fixedly connected to the first electric rotating shaft, and every two adjacent partition plates together form a garbage channel for guiding the garbage to pass through; the water retaining plate is detachably connected to a collection box for collecting and storing garbage; the collection box is provided with a first filter; the collection box is provided with a third filter; a second slide groove is provided on each partition plate; an electric slider is provided on each second slide groove; a second electric rotating shaft is installed between every two adjacent electric sliders; a plurality of levers are provided on each second electric rotating shaft; a crushing component for crushing garbage is connected to the water flow channel on the water retaining plate.

[0006] As a further preferred solution, a first handle is also included; the first handle is fixedly connected to the upper side of the collection box.

[0007] As a further preferred scheme, the crushing assembly includes an electric push rod, a connecting block, a third electric rotating shaft and a cutter; two left-right symmetrical first slide grooves are opened on the upper part of the water retaining plate; an electric push rod is fixedly connected in each first slide groove; a connecting block is fixedly connected to the telescopic end of each electric push rod; the two connecting blocks are commonly connected to the third electric rotating shaft on the opposite sides; a cutter group is fixedly connected to the third electric rotating shaft, and the cutter group consists of two cutters; the garbage channel formed by the cutter group and the partition plate is staggered.

[0008] As a further preferred solution, a second handle is also included; two second handles that are symmetrical on the left and right are fixedly connected to the upper side of the plug board.

[0009] As a further preferred embodiment, a paddle board is also included; all the levers on each second electric rotating shaft are commonly fixed with a paddle board symmetrically arranged in the upper and lower parts for generating waves on the water surface.

[0010] As a further preferred embodiment, it also includes a filter plate, a gate and a second filter screen; a filter plate for filtering garbage entering the water flow channel is arranged at the lower part of the water flow channel on the water retaining plate; two water outlets symmetrically arranged in the upper and lower parts of the water flow channel are opened; a gate is arranged on each water outlet; a second filter screen for dividing the collection box into upper and lower layers is arranged in the middle part of the collection box.

[0011] As a further preferred solution, the lower parts of the upper and lower layers in the collection box are both arranged in an inclined shape with the front lower and the rear higher.

[0012] As a further preferred solution, the filter plate is arranged to be lower near the gate and higher away from the gate.

[0013] As a further preferred solution, the filter plate and the water retaining plate are detachably connected.

[0014] As a further preferred scheme, it also includes a closing block, a stopper, a fourth electric rotating shaft and a sealing block; a plurality of stoppers are arranged on the closing plate; a plurality of through grooves are opened on the upper part of the closing plate; the same number of closing blocks as the through grooves are slidably connected to the closing plate; all the closing blocks are connected by connecting rods; a fourth electric rotating shaft is installed on the upper side of the water retaining plate; and a sealing block is fixedly connected to the rotating part of the fourth electric rotating shaft.

[0015] The present invention has the following advantages: the present invention realizes that the partition plate is driven to rotate by the first electric rotating shaft, so that the partition plate changes from a vertical state of being in contact with the water retaining plate to a horizontal state, as shown in the figure, and at the same time, the gear is driven to rotate by the motor, so that the blocking plate is driven to move upward through the rack, thereby opening the water flow channel in the water retaining plate, and at the same time, the gate on the water retaining plate will also be opened, so that the river water will be discharged from the water outlet on the water retaining plate through the water flow channel, and some small garbage on the water surface will enter the water flow channel along the garbage channel between the partition plates, and finally be collected in the collection box;

[0016] The electric push rod drives the connecting block, the third electric shaft and the cutter to move forward, and then the third electric shaft is started, thereby driving the cutter to rotate clockwise from left to right to crush the garbage, thereby preventing the garbage on the upper side of the partition plate from being too large to enter the water flow channel;

[0017] The blocked garbage channel is unblocked by rotating the lever, thereby improving the use effect of the present invention;

[0018] The paddle board fixedly connected to the lever makes the water surface of the garbage channel between the partition plates produce water splashes and ripples, thereby utilizing the impact force of the water to clean up the garbage remaining on the partition plates, further improving the cleaning effect of the present invention;

[0019] The garbage on the water surface can be intercepted by blocking plates to prevent the garbage from flowing into the downstream and causing garbage pollution downstream. At the same time, the difficulty of cleaning is reduced. Water will also be discharged from the outlet through the water flow channel, thereby controlling the height of the water surface and, in turn, the water storage capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the water retaining dam with automatic cleaning function of the present invention;

[0021] Figure 2 It is a schematic diagram of the combined three-dimensional structure of the hydraulic push rod, the water retaining plate, the partition plate and the collection box of the present invention;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the motor, gear and rack combination of the present invention;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the electric push rod, the connecting block, the third electric rotating shaft and the cutter assembly of the present invention;

[0024] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the filter plate, the gate and the second filter screen combination of the present invention;

[0026] Figure 7 A diagram showing the partition plate of the present invention changing from a vertical state to a horizontal state;

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the closing block, the stopper, the fourth electric shaft and the sealing block combination of the present invention.

[0028] Among them: 1-hydraulic push rod, 2-water blocking plate, 3-blocking plate, 4-separator, 5-collection box, 101-motor, 102-gear, 103-rack, 201-first electric shaft, 202-electric slider, 203-second electric shaft, 204-push rod, 205-paddle board, 301-electric push rod, 302-connecting block, 303-third electric shaft, 304-cutter, 401-filter plate, 402-gate, 501- The second filter, 601-closing block, 602-blocking block, 603-fourth electric shaft, 604-sealing block, 2001-water flow channel, 2002-water outlet, 2003-first slide groove, 3001-through groove, 4001-second slide groove, 5001-first handle, 5002-plug plate, 5003-second handle, 5004-first filter, 5005-third filter, 60101-connecting rod, 10-river channel, 11-water surface. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with specific embodiments. It should also be noted that, unless otherwise clearly specified and limited, terms such as: setting, installing, connecting, and connecting should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Example 1

[0031] A water retaining dam with automatic cleaning function, such as Figure 1-Figure 7 As shown, it includes a hydraulic push rod 1 and a water retaining plate 2; a plurality of water retaining plates 2 in a linear array are arranged on the river channel 10; the rear side of each water retaining plate 2 is rotatably connected to two hydraulic push rods 1 in a bilaterally symmetrical manner; the hydraulic push rod 1 is connected to the river channel 10 through a rotating shaft;

[0032] It also includes a lifting assembly, a blocking plate 3, a partition plate 4, a collection box 5, a first electric shaft 201, an electric slider 202, a second electric shaft 203, a lever 204 and a crushing assembly; a water flow channel 2001 is opened on the water retaining plate 2; the upper part of the water retaining plate 2 is connected to the blocking plate 3; the upper part of the water retaining plate 2 is connected to the lifting assembly; the upper part of the water retaining plate 2 is provided with a first electric shaft 201; a plurality of partition plates 4 distributed in a straight line are fixedly connected to the first electric shaft 201, and every two adjacent partition plates 4 together form a garbage channel for guiding garbage to pass; the partition plates 4 are driven to rotate by the first electric shaft 201, so that the partition plates 4 are changed from vertical to vertical The state is changed to a horizontal state, and then the large garbage is separated from the small garbage by the partition plate 4; the rear part of the water retaining plate 2 is detachably connected to the collecting box 5; the lower side of the collecting box 5 is provided with a first filter 5004; the front side of the collecting box 5 is provided with a third filter 5005; each partition plate 4 is provided with a second slide groove 4001; each second slide groove 4001 is provided with an electric slider 202; a second electric rotating shaft 203 is installed between every two adjacent electric sliders 202; each second electric rotating shaft 203 is provided with three levers 204 in a linear array; a crushing component is connected to the water flow channel 2001 on the water retaining plate 2.

[0033] It also includes a first handle 5001 ; the first handle 5001 is bolted to the upper side of the collection box 5 for easy movement of the collection box 5 .

[0034] The lifting assembly includes a motor 101, a gear 102 and a rack 103; the upper bolts of the water retaining plate 2 have two motors 101 that are symmetrical on the left and right; the power end of each motor 101 is fixedly connected to a gear 102; two racks 103 that are symmetrical on the left and right are fixedly connected to the blocking plate 3; the gears 102 are meshed with the corresponding racks 103.

[0035] The crushing assembly includes an electric push rod 301, a connecting block 302, a third electric rotating shaft 303 and a cutter 304; two left-right symmetrical first slide grooves 2003 are opened on the upper part of the water retaining plate 2; an electric push rod 301 is bolted in each first slide groove 2003; the telescopic end of each electric push rod 301 is fixedly connected to a connecting block 302; the two connecting blocks 302 are commonly connected to the third electric rotating shaft 303 on the opposite sides; a cutter group 304 is fixedly connected to the third electric rotating shaft 303, and the cutter group 304 consists of two cutters 304; the cutter group 304 and the garbage channel formed by the partition plate 4 are staggered.

[0036] It also includes a second handle 5003; two second handles 5003 symmetrically connected to the upper side of the plug board 5002 by bolts; in order to facilitate workers to lift the plug board 5002.

[0037] It also includes a paddle board 205; all the levers 204 on each second electric rotating shaft 203 are commonly fixed with a paddle board 205 which is symmetrically arranged in the upper and lower parts.

[0038] It also includes a filter plate 401, a gate 402 and a second filter screen 501; a filter plate 401 is arranged at the lower part of the water flow channel 2001 on the water retaining plate 2; two water outlets 2002 which are symmetrical in upper and lower parts are opened at the lower part of the water flow channel 2001; a gate 402 is arranged on each water outlet 2002; a second filter screen 501 is arranged in the middle of the collection box 5.

[0039] The lower parts of the upper and lower layers in the collection box 5 are both arranged in an inclined shape with the front lower and the back higher; in order to facilitate the discharge of water from the collection box 5.

[0040] The filter plate 401 is arranged to be lower near the gate 402 and higher away from the gate 402 in order to guide the garbage on the filter plate 401 into the collection box 5 .

[0041] The filter plate 401 is detachably connected to the water retaining plate 2 to clean the filter plate 401 and prevent garbage from clogging the filter plate 401 .

[0042] It should be noted that: the position of the partition plate 4 of the present invention is the front, and the position of the hydraulic push rod 1 is the rear;

[0043] During the rainy season, water is stored in dams, and when the rainfall is too heavy, it can also be discharged through the dams to prevent floods. When the dams store water for a long time, the water cannot flow, resulting in a large amount of garbage gathering in front of the dams, such as foam boxes, plastic bottles, fallen branches, fallen leaves and other floating garbage. If these garbage are not cleaned up in time, they will pollute the water source. At the same time, the garbage will emit a foul odor, thereby polluting the air and reducing the air quality.

[0044] The prior art is that workers hold net bags and stand by the river to salvage the garbage on the water surface 11. However, the net bag has a limited salvage capacity and a low cleaning efficiency. At the same time, some larger garbage cannot be salvaged by the net bag. Therefore, the net bag salvage also has limitations. Workers holding net bags while working by the river are prone to fall into the water, which is dangerous. The water in front of the dam is deeper, making it difficult to rescue those who fall into the water, which makes the workers' salvage work more dangerous.

[0045] In reality, in order to avoid excessive water storage, which may cause damage to the dam, each time the dam is storing water, the water surface 11 in the dam will be kept at a fixed height, such as Figure 7As shown, in order to ensure the safety of the water retaining dam, when workers find that garbage is gathered on the water surface 11 in front of the water retaining plate 2, they will go down to the river channel 10, install the collection box 5 on the rear side of the water retaining plate 2, and then start the external power supply to drive the partition plate 4 to rotate slowly counterclockwise from left to right through the first electric shaft 201 to avoid rotating too fast and hurting the fish in the river, so that the partition plate 4 changes from the vertical state of being attached to the water retaining plate 2 to the horizontal state, as shown in FIG. Figure 7 As shown, while the first electric shaft 201 drives the partition plate 4 to rotate, the motor 101 drives the gear 102 to rotate, thereby driving the blocking plate 3 to move upward through the rack 103, thereby opening the water flow channel 2001 in the water retaining plate 2. At the same time, the gate 402 on the water retaining plate 2 will also be opened. Therefore, the river water will be discharged from the water outlet 2002 on the water retaining plate 2 through the water flow channel 2001, and some small garbage on the water surface 11 will enter the water flow channel 2001 along the garbage channel between the partition plates 4. Finally, the garbage will be collected in the collection box 5 under the action of the first filter screen 5004 and the third filter screen 5005 on the collection box 5.

[0046] It should be noted that the upper side of the horizontal partition plate 4 is higher than the water surface 11, and the water surface 11 is higher than the water inlet of the water flow channel 2001. Therefore, some larger garbage is separated from small garbage by the partition plate 4, thereby preventing the larger garbage from blocking the movement of small garbage.

[0047] Because the garbage on the upper side of the partition plate 4 has been separated from the water surface 11, the garbage remaining on the upper side of the partition plate 4 cannot be moved to the water flow channel 2001 by the impact of the water flow, and the second electric shaft 203 will also drive the lever 204 to rotate counterclockwise from left to right. At the same time, the electric slider 202 drives the second electric shaft 203 and the lever 204 to move backward along the second slide 4001 on the partition plate 4, so that the garbage on the upper side of the partition plate 4 is transported to the water flow channel 2001 through the rotating lever 204, thereby preventing the garbage on the upper side of the partition plate 4 from being unable to be transported to the water flow channel 2001 under the action of the water flow. At the same time, due to the limited size of the water flow channel 2001, the garbage cannot enter the water flow channel 2001 and cannot be cleaned. At this time, the electric push rod 301 drives the connecting block 302, the third electric shaft 303 and the cutter 304 to move forward, and then the third electric shaft 303 is started, thereby driving the cutter 304 to rotate clockwise from left to right to crush the garbage, thereby preventing the garbage on the upper side of the partition plate 4 from being too large to enter the water flow channel 2001. At the same time, the crushed garbage can also be transported to the water flow channel 2001, thereby improving the cleaning effect of the present invention.

[0048] When there is too much garbage in the garbage channel between the partition plates 4, it is easy to block the garbage channel between the partition plates 4, resulting in the garbage being unable to move to the water flow channel 2001 with the water flow. Therefore, the blocked garbage channel can be unblocked by rotating the lever 204, thereby improving the use effect of the present invention.

[0049] It should be noted that the length of the lever 204 is greater than the width of the partition plate 4. Therefore, when the lever 204 is in a vertical state, the lever 204 will contact the garbage on the upper side of the partition plate 4, so that the garbage on the upper side of the partition plate 4 can be transported to the water flow channel 2001 through the lever 204.

[0050] When some garbage moves in the garbage channel between the partition plates 4, it will be adsorbed and remain on the partition plates 4, causing contamination of the partition plates 4. Therefore, in the process of the second electric shaft 203 driving the lever 204 to rotate, the paddle board 205 fixed to the lever 204 causes water splashes to be generated on the water surface 11 of the garbage channel between the partition plates 4, thereby utilizing the impact force of the water splashing to clean up the garbage remaining on the partition plates 4, further improving the cleaning effect of the present invention. At the same time, the paddle board 205 can also be used to accelerate the movement of garbage in the garbage channel between the partition plates 4 to the water flow channel 2001.

[0051] In reality, the salvaged garbage will also be classified according to the size of the garbage, so as to be treated differently. For example, some small garbage will be dumped directly on the river bank by the workers, so as to increase the workers' carrying capacity. Therefore, the garbage entering the water flow channel 2001 will be screened under the action of the filter plate 401, and the large garbage will be intercepted by the filter plate 401, so as to remain on the upper side of the filter plate 401, and then, under the impact of the water flow, it will enter the upper layer of the collection box 5 through the water outlet 2002 for collection. On the contrary, the garbage passing through the filter plate 401 will enter the lower layer of the collection box 5 through the water outlet 2002 on the lower side of the water retaining plate 2 for collection. After the cleaning work is completed, the worker holds the second handle 5003 on the collection box 5 and presses down the plug plate 5002 to close the collection box 5, and then the worker removes the garbage collected in the collection box 5.

[0052] It should be noted that: because floating garbage will gather on the water surface 11, the lower parts of the upper and lower layers in the collection box 5 are set to be inclined with the front lower and the back higher, so that water can be discharged from here, thereby preventing the floating garbage from clogging the first filter 5004 and the third filter 5005, affecting the drainage of water from the collection box 5.

[0053] Example 2

[0054] On the basis of Example 1, Figure 1 , Figure 2 , Figure 4 and Figure 8As shown, it also includes a closing block 601, a stopper 602, a fourth electric rotating shaft 603 and a sealing block 604; a plurality of stoppers 602 are arranged on the closing plate 3; a plurality of through grooves 3001 are opened on the upper part of the closing plate 3; the same number of closing blocks 601 as the through grooves 3001 are slidably connected to the closing plate 3; all closing blocks 601 are connected by a connecting rod 60101; a fourth electric rotating shaft 603 is installed on the upper side of the water retaining plate 2; and a sealing block 604 is fixedly connected to the rotating part of the fourth electric rotating shaft 603.

[0055] When the water surface 11 is higher than the retaining plate 2, the water will flow through the retaining plate 2 and flow downstream. At this time, the garbage in front of the retaining plate 2 will flow over the retaining plate 2 and flow downstream, causing the garbage to pollute the downstream and increasing the difficulty of cleaning the garbage.

[0056] Therefore, when the water surface 11 is higher than the water retaining plate 2, the motor 101 drives the gear 102 to rotate, thereby driving the rack 103 to move upward, and then driving the blocking plate 3 to move upward. During the upward movement of the blocking plate 3, the fourth electric shaft 603 will be in a locked state. After the connecting rod 60101 on the closing block 601 contacts the sealing block 604, the sealing block 604 blocks the closing block 601, thereby opening the through groove 3001 on the blocking plate 3, and then intercepting the garbage on the water surface 11 through the blocking plate 3 to prevent the garbage from flowing into the downstream and causing the garbage to pollute the downstream. At the same time, the cleaning difficulty is reduced. Among them, water will also be discharged from the water outlet 2002 through the water flow channel 2001, thereby controlling the height of the water surface 11, and thus controlling the water storage capacity.

[0057] It should be noted that after the through slot 3001 on the blocking plate 3 is fully opened, the blocking plate 3 does not reach the top, thereby preventing the blocking plate 3 from being broken by excessive impact force of the water flow.

[0058] After the water surface 11 returns to the fixed height, the motor 101 will drive the gear 102 to rotate, thereby driving the rack 103 to move upward, and then driving the blocking plate 3 to move upward. In the process of the blocking plate 3 moving upward, the fourth electric shaft 603 will be in an open state. Therefore, the connecting rod 60101 on the closing block 601 will pass through the sealing block 604. After reaching the top, the motor 101 will drive the gear 102 to rotate in the opposite direction, thereby driving the blocking plate 3 to move downward for reset. At this time, the fourth electric shaft 603 is in a locked state. Therefore, after the connecting rod 60101 contacts the sealing block 604, the closing block 601 will be fixed again through the sealing block 604. When the connecting rod 60101 contacts the stopper 602, it means that the closing block 601 has blocked the through groove 3001 on the closing plate 3. At the same time, the fourth electric shaft 603 is in an open state. Therefore, the blocking plate 3 will eventually reset to block the water flow channel 2001.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A water retaining dam with an automatic cleaning function, comprising a hydraulic push rod (1) and a water retaining plate (2); a plurality of water retaining plates (2) are arranged on a river channel (10); each water retaining plate (2) is rotatably connected to a plurality of hydraulic push rods (1); the hydraulic push rods (1) are connected to the river channel (10) via a rotating shaft; characterized in that: The utility model also comprises a lifting assembly, a blocking plate (3), a partition plate (4), a collection box (5), a first electric rotating shaft (201), an electric sliding block (202), a second electric rotating shaft (203), a lever (204) and a crushing assembly; a water flow channel (2001) is provided on the water retaining plate (2); the water retaining plate (2) is connected to a blocking plate (3) for closing the water flow channel (2001); the water retaining plate (2) is connected to a lifting assembly for controlling the opening and closing of the blocking plate (3); the water retaining plate (2) is provided with a first electric rotating shaft (201); a plurality of partition plates (4) are fixedly connected to the first electric rotating shaft (201), and every two adjacent partition plates (4) together form a garbage channel for guiding garbage to pass through; the water retaining plate (2) is detachably connected to a collection box (5) for collecting and storing garbage; the collection box (5) is provided with a first filter screen (5004); The collecting box (5) is provided with a third filter screen (5005); the collecting box (5) is slidably connected with a plug plate (5002); each partition plate (4) is provided with a second slide groove (4001); each second slide groove (4001) is provided with an electric slider (202); a second electric rotating shaft (203) is installed between every two adjacent electric sliders (202); each second electric rotating shaft (203) is provided with a plurality of levers (204); a crushing assembly for crushing garbage is connected in the water flow channel (2001) on the water retaining plate (2); the crushing assembly comprises an electric push rod (301), a connecting rod (201) and a connecting rod (202); The invention relates to a water retaining plate (2) comprising a first slide groove (2003) and a third electric rotating shaft (303). The upper part of the water retaining plate (2) is provided with two first slide grooves (2003) which are symmetrical to each other. An electric push rod (301) is fixedly connected in each first slide groove (2003). The telescopic end of each electric push rod (301) is fixedly connected to a connecting block (302). The two connecting blocks (302) are connected to the third electric rotating shaft (303) on the opposite sides. A cutter (304) group is fixedly connected to the third electric rotating shaft (303), and the cutter (304) group consists of two cutters (304). The cutter (304) group and the garbage channel formed by the partition plate (4) are staggered.

2. A water retaining dam with automatic cleaning function according to claim 1, characterized in that: It also includes a first handle (5001); the first handle (5001) is fixedly connected to the upper side of the collection box (5).

3. The water retaining dam with automatic cleaning function according to claim 1, characterized in that: It also includes a second handle (5003); two second handles (5003) that are symmetrical on both sides are fixedly connected to the upper side of the plug board (5002).

4. The water retaining dam with automatic cleaning function according to claim 2, characterized in that: It also includes a paddle board (205); all the levers (204) on each second electric rotating shaft (203) are fixedly connected with a paddle board (205) symmetrically arranged up and down and used to generate waves on the water surface (11).

5. A water retaining dam with automatic cleaning function according to claim 4, characterized in that: The invention also comprises a filter plate (401), a gate (402) and a second filter screen (501); a filter plate (401) for filtering garbage entering the water flow channel (2001) is arranged at the lower part of the water flow channel (2001) on the water retaining plate (2); two water outlets (2002) symmetrically arranged in the upper and lower parts are arranged at the lower part of the water flow channel (2001); a gate (402) is arranged on each water outlet (2002); and a second filter screen (501) for dividing the collection box (5) into upper and lower layers is arranged in the middle part of the collection box (5).

6. A water retaining dam with automatic cleaning function according to claim 5, characterized in that: The lower parts of the upper and lower layers in the collecting box (5) are both arranged in an inclined shape with the front lower and the rear higher.

7. The water retaining dam with automatic cleaning function according to claim 5, characterized in that: The filter plate (401) is arranged to be lower near the gate (402) and higher away from the gate (402).

8. The water retaining dam with automatic cleaning function according to claim 7, characterized in that: The filter plate (401) and the water retaining plate (2) are detachably connected.

9. A water retaining dam with automatic cleaning function according to claim 8, characterized in that: The invention also comprises a closing block (601), a stopper (602), a fourth electric rotating shaft (603) and a sealing block (604); a plurality of stoppers (602) are arranged on the closing plate (3); a plurality of through slots (3001) are opened on the upper part of the closing plate (3); the closing block (601) having the same number as the through slots (3001) is slidably connected to the closing plate (3); all the closing blocks (601) are connected via a connecting rod (60101); a fourth electric rotating shaft (603) is installed on the upper side of the water retaining plate (2); and a sealing block (604) is fixedly connected to the rotating part on the fourth electric rotating shaft (603).

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