Water gate sewage disposal device for water conservancy construction

Abstract

The invention relates to the technical field of water gate sewage disposal, and particularly discloses a water conservancy construction water gate sewage disposal device which comprises traction assemblies arranged on the two sides of a river channel and an up-and-down floating assembly connected with the traction assemblies and used for intercepting river channel garbage, and the traction assemblies are used for allowing the up-and-down floating assembly to enter the river channel; the up-and-down floating assembly comprises a plurality of up-and-down floating balls arranged based on the width of the river channel, a traction rope used for connecting the up-and-down floating balls in series and connected with the traction assembly, a common filter screen and an elastic filter screen arranged below the up-and-down floating balls, and a sinking assembly arranged at the bottoms of the common filter screen and the elastic filter screen and used for sinking. Inflatable air bags used for draining water are arranged in the upper floating ball and the lower floating ball, a stretching assembly used for enabling the upper floating ball and the lower floating ball to move on the pulling rope is arranged on the pulling rope on the upper floating ball and the lower floating ball close to the elastic filter screen, and the problems that the density of a trash blocking grating cannot be changed, and trash at a gate cannot be intercepted, and passing of fishes cannot be affected are solved.

Description

Technical Field

[0001] The present application relates to the technical field of sluice gate pollution cleaning, and specifically discloses a sluice gate pollution cleaning device for water conservancy construction. Background Art

[0002] Gate cleaning refers to cleaning the gate to remove pollutants and debris to ensure smooth water flow. The gate is an important control point for rivers, lakes and other water bodies. If the gate is polluted, it will cause the downstream water body to be polluted, affecting the ecological environment and human health;

[0003] For the cleaning of the sluice gate, most of them are on-site cleaning operations. Regarding on-site cleaning operations: organize professional personnel to clean up the pollutants at the sluice gate, including salvaging floating objects, removing silt, demolishing illegal buildings, etc.;

[0004] Regarding the salvage of floating objects, it is usually necessary to use it in conjunction with a river interception device, that is, to cooperate with the river interception device to block the floating garbage or suspended garbage from passing through, and then complete the cleaning of the gate. At present, the river interception device usually adopts a fixed river salvage method. The so-called fixed river salvage method is to build a fixed upward-opening garbage grille collection and salvage processing device across the river. A mobile tooth rake dredger is set in the middle of the river, and fixed grids are set under the river on both sides of the middle dredger to prevent floating objects on the water surface from drifting and leaking;

[0005] Current problems:

[0006] Trash screens can indeed block floating and suspended matter, but they will affect the ecological balance because some fish cannot pass through. Over time, biodiversity is damaged. If the trash screen is set above the liquid surface, the above-mentioned suspended matter can still reach the gate;

[0007] Secondly, the trash screen only has the function of interception, and the intercepted floating objects or suspended objects still need manpower to collect and salvage the garbage, which is time-consuming and laborious. In view of this, the inventor has invented a sluice cleaning device for water conservancy construction. Summary of the invention

[0008] The purpose of the invention is to solve the problem that the trash screen cannot change its density and cannot intercept the garbage at the gate without affecting the passage of fish.

[0009] In order to achieve the above object, the present invention provides the following basic scheme:

[0010] A sluice gate cleaning device for water conservancy construction, comprising a traction assembly arranged on both sides of a river channel and an upper and lower floating assembly connected to the traction assembly for intercepting river channel garbage, wherein the traction assembly is used for the upper and lower floating assemblies to enter the river channel;

[0011] The upper and lower floating components include:

[0012] A plurality of upper and lower floating balls arranged based on the width of the river channel, a traction rope connected to the traction assembly for connecting the upper and lower floating balls in series, a common filter screen and an elastic filter screen arranged below the upper and lower floating balls, and a sinking assembly for sinking to the bottom arranged at the bottom of the common filter screen and the elastic filter screen;

[0013] The inflatable airbags in the upper and lower floating balls are used for drainage, and the traction ropes on the upper and lower floating balls close to the elastic filter screen are provided with a stretching assembly for moving the upper and lower floating balls on the traction ropes, and the movement of the upper and lower floating balls changes the gap between the elastic filter screens;

[0014] An inflatable component for floating the sinking component is arranged inside the sinking component.

[0015] The principles and effects of this basic solution are:

[0016] 1. Compared with the prior art, the present device has a simple structure and an ingenious design. The present device is provided with a traction assembly and an upper and lower floating assembly. The traction assembly is used to enable the upper and lower floating assemblies to enter the river channel. The upper and lower floating assemblies are arranged in front of the gate to realize the cleaning operation of the gate. The cleaning operation is to salvage floating objects. The upper and lower floating assemblies have outstanding advantages in intercepting river garbage. They can not only intercept floating objects, but also intercept suspended objects. Moreover, it can be determined whether to intercept floating objects or suspended objects according to actual needs, and the interception type can be freely selected.

[0017] 2. Compared with the existing technology, the core of the upper and lower floating components uses ordinary filter screens and elastic filter screens. Ordinary filter screens are used to achieve depth interception of the river channel, and elastic filter screens and stretching components are used to change the density of the elastic filter screen position, solving the problem that the trash screen cannot change its density and cannot intercept the garbage at the gate without affecting the passage of fish.

[0018] 3. Compared with the prior art, it can not only intercept floating objects, but also intercept suspended objects. It is created with upper and lower floats. The core principle of the upper and lower floats is to achieve the height of the upper and lower floats relative to the liquid surface through the change of buoyancy, that is, it can float above the liquid surface or be suspended in the liquid surface. Due to the change of buoyancy, the positions of the upper and lower floats will change. The traction assembly is used in conjunction with the upper and lower floats to ensure that the positions of the upper and lower floats will change more smoothly.

[0019] 4. Compared with the prior art, regarding the change in buoyancy: the core of the device regarding the change in buoyancy is that the airbag is filled with gas to form upper and lower floating balls with buoyancy. When the airbag is not filled with gas, river water is injected, and the buoyancy disappears. At this time, the upper and lower floating balls sink. Therefore, the degree of filling of the airbag can be changed to ensure the relative relationship between the upper and lower floating balls and the liquid level, thereby completing the interception of not only floating objects but also suspended objects.

[0020] 5. Compared with the prior art, a sinking component is provided. The sinking component is first used to sink the bottom of the upper and lower floating components to ensure that the bottoms of the ordinary filter screen and the elastic filter screen sink to the bottom, thereby realizing comprehensive interception of the river channel. Secondly, the sinking component can expand to realize floating. After floating, the staff will tow the device to both sides of the river channel. At this time, the towing component fixes the position of the upper and lower floating components, so that the upper and lower floating components cooperate with the sinking component to form a ring structure, which surrounds the intercepted garbage into a circle. The design of surrounding the circle makes it possible to salvage the garbage without collecting the garbage in advance. Compared with traditional salvage, the action of collecting garbage is eliminated, thereby saving time and effort.

[0021] Furthermore, the traction assembly and the upper and lower floating assemblies are arranged in the water inlet direction of the gate, the gate is arranged on the dam, and the dam is arranged on both sides of the river. The traction assembly and the upper and lower floating assemblies are arranged in the water inlet direction of the gate to intercept garbage and facilitate the cleaning of the gate.

[0022] Furthermore, the traction assembly includes a floor, a connecting column fixed to the floor, a through hole opened on the connecting column, a traction motor arranged outside the connecting column, and a traction wheel arranged inside the connecting column. The output shaft of the traction motor is coaxially connected with a coupling, the free end of the coupling passes through the connecting column and is rotatably connected to the traction wheel, and one end of the traction rope is wound around the connected traction wheel. The traction assembly is used to make the upper and lower floating assemblies enter the river channel as a whole and exit the river channel as a whole.

[0023] Furthermore, the upper and lower floating balls are slidably connected with the traction rope, and the upper and lower floating balls include a pair of hollow spheres that can be spliced ​​into shape, a connecting channel for installing the traction rope arranged inside the hollow sphere, a through hole arranged outside the hollow sphere, a support frame symmetrically arranged on the inner wall of the hollow sphere, and a first gas generator fixed to the support frame, the inflatable airbag is connected to the output end of the first gas generator, and a plurality of drainage holes are also arranged on the outside of the hollow sphere, and the inflatable airbag is used to block the drainage holes after expansion. The lower floating assembly has outstanding advantages in intercepting river garbage, and can not only intercept floating objects, but also intercept suspended objects, and can determine whether to intercept floating objects or suspended objects according to actual needs, and the interception type can be freely selected.

[0024] Furthermore, the upper ends of the common filter screen and the elastic filter screen are fixedly connected to the outer surfaces of the hollow spheres in the upper and lower floating balls, and the lower ends of the common filter screen and the elastic filter screen are fixedly connected to the bottom sinking assembly.

[0025] Furthermore, the stretching assembly includes a housing, a connection hole opened on the housing for fixing with a traction rope, and a cylinder arranged inside the housing, and the extended end of the cylinder passes through the housing and is fixedly connected with the upper and lower floating balls near the elastic filter. The elastic filter is stretched to enlarge the gap inside the elastic filter, which is used to change the density. After the density is changed, fish can pass through. After the fish pass through, it can return to its original state to complete the interception of garbage.

[0026] Furthermore, the sinking assembly includes a hollow sinking block, breakable end caps disposed at both ends of the hollow sinking block, a second gas generator disposed inside the hollow sinking block, and an expansion body connected to the output end of the second gas generator, wherein the expansion end of the expansion body is provided with a marking ball, and the marking ball can float in the river. The hollow sinking block helps the sinking assembly to sink to the bottom, and the expansion body enables the sinking assembly to float. With the help of the marking ball and manual labor, the upper and lower floating assemblies cooperate with the sinking assembly to form a ring structure, which surrounds the intercepted garbage into a circle. The design of surrounding the circle makes it possible to salvage the garbage without collecting the garbage in advance. Compared with traditional salvage, the action of collecting the garbage is eliminated, thereby saving time and effort.

[0027] Furthermore, the output end of the second gas generator is connected to a long connecting hose, and the free end of the connecting hose is connected to the expansion body, so as to ensure that the expansion body can float up from the bottom of the river.

[0028] Furthermore, the first gas generator and the second gas generator are of the same model and produce the same gas, which is helium. The first gas generator and the second gas generator are both helium generators. In the field where helium is easily available, helium is the easiest to obtain and the floating speed is the fastest after filling with helium.

[0029] Furthermore, it also includes a liquid level sensor and a sensor, the liquid level sensor is arranged on the upper and lower floating balls, the upper and lower floating balls are set to float above the liquid surface as zero scale, the sensor is used for artificial remote start of the first gas generator and the second gas generator, the expansion body and the inflatable airbag are both provided with a suction component, the suction component is used for suction of the expansion body and the inflatable airbag, ensuring that the first gas generator and the second gas generator can be used remotely. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1A schematic diagram of the installation layout of a sluice cleaning device for water conservancy construction proposed in an embodiment of the present application is shown;

[0032] Figure 2 A schematic diagram of the structure of a traction assembly in a sluice cleaning device for water conservancy construction proposed in an embodiment of the present application is shown;

[0033] Figure 3 A schematic diagram of the structure of upper and lower floating components in a sluice cleaning device for water conservancy construction proposed in an embodiment of the present application is shown;

[0034] Figure 4 A schematic diagram of the structure of upper and lower floating balls in a sluice cleaning device for water conservancy construction proposed in an embodiment of the present application is shown;

[0035] Figure 5 A structural schematic diagram showing another state of the upper and lower floating balls in a sluice cleaning device for water conservancy construction proposed in an embodiment of the present application;

[0036] Figure 6 A schematic diagram showing the installation positions of an elastic filter screen and a stretching assembly in a sluice cleaning device for water conservancy construction proposed in an embodiment of the present application is shown;

[0037] Figure 7 A schematic diagram of the structure of a stretching assembly in a sluice cleaning device for water conservancy construction proposed in an embodiment of the present application is shown;

[0038] Figure 8 A schematic structural diagram of a bottom sinking component in a sluice cleaning device for water conservancy construction proposed in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0039] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0040] The figure marks in the drawings of the specification include: dam 1, both sides of the river channel 2, gate 3, traction assembly 4, connecting column 401, traction motor 402, coupling 403, traction rope 404, traction wheel 405, first common filter 6, upper and lower floating balls 7, hollow sphere 701, connecting channel 702, drainage hole 703, first gas generator 704, support frame 705, inflatable airbag 706, sinking assembly 8, hollow sinking block 801, second gas generator 802, connecting hose 803, expansion body 804, marking ball 805, breakable end cover 806, second common filter 9, elastic filter 10, stretching assembly 11, shell 1101, connecting hole 1102, protruding end 1103 of cylinder.

[0041] Implementation example Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown:

[0042] A sluice gate cleaning device for water conservancy construction, comprising a traction assembly 4 arranged on both sides 2 of a river channel and an upper and lower floating assembly connected to the traction assembly 4 for intercepting river channel garbage, wherein the traction assembly 4 is used for the upper and lower floating assemblies to enter the river channel;

[0043] like Figure 1 As shown: the traction assembly 4 and the upper and lower floating assemblies are arranged in the water inlet direction of the gate 3, the gate 3 is arranged on the dam 1, and the dam 1 is arranged on both sides of the river. The traction assembly 4 and the upper and lower floating assemblies are arranged in the water inlet direction of the gate 3 to intercept garbage and facilitate the cleaning of the gate 3.

[0044] The upper and lower floating components include

[0045] A plurality of upper and lower floating balls 7 arranged based on the width of the river channel, a traction rope 404 connected to the traction assembly 4 for connecting the upper and lower floating balls 7 in series, a common filter screen and an elastic filter screen 10 arranged below the upper and lower floating balls 7, and a sinking assembly 8 for sinking to the bottom arranged at the bottom of the common filter screen and the elastic filter screen 10;

[0046] like Figure 3 As shown, the common filter screen is divided into a first common filter screen 6 and a second common filter screen 9 , the elastic filter screen 10 is in the middle, and the first common filter screen 6 and the second common filter screen 9 are located on both sides of the elastic filter screen 10 .

[0047] The inflatable airbag 706 for drainage in the upper and lower floating balls 7 is provided on the traction rope 404 on the upper and lower floating balls 7 close to the elastic filter 10, and a stretching assembly 11 for moving the upper and lower floating balls 7 on the traction rope 404 is provided. The movement of the upper and lower floating balls 7 changes the gap between the elastic filter 10;

[0048] The sinking component 8 is provided with an inflation component for floating the sinking component 8 .

[0049] About the traction assembly 4: the traction assembly 4 includes a floor, a connecting column 401 fixed to the floor, a through hole opened on the connecting column 401, a traction motor 402 arranged on the outside of the connecting column 401, and a traction wheel 405 arranged in the connecting column 401. The output shaft of the traction motor 402 is coaxially connected with a coupling 403, and the free end of the coupling 403 passes through the connecting column 401 and is rotatably connected to the traction wheel 405. One end of the traction rope 404 is wrapped around the connected traction wheel 405, and the other end passes through the through hole. The traction assembly 4 is used to allow the upper and lower floating assemblies to enter the river channel as a whole and exit the river channel as a whole.

[0050] The upper and lower floating balls 7 are slidably connected with the traction rope 404. The upper and lower floating balls 7 include a pair of hollow spheres 701 that can be spliced ​​and formed, a connecting channel 702 for installing the traction rope 404 arranged inside the hollow sphere 701, a through hole arranged outside the hollow sphere 701, a support frame 705 symmetrically arranged on the inner wall of the hollow sphere 701, and a first gas generator 704 fixed to the support frame 705. The inflatable airbag 706 is connected to the output end of the first gas generator 704. The outer side of the hollow sphere 701 is also provided with a plurality of drainage holes 703. The inflatable airbag 706 is used to block the drainage holes 703 after expansion. The lower floating assembly has outstanding advantages in intercepting river garbage. It can not only intercept floating objects, but also intercept suspended objects. It can determine whether to intercept floating objects or suspended objects according to actual needs, and the interception type can be freely selected.

[0051] Specifically: the inflatable airbag 706 is used to block the drainage hole 703 after expansion. For the upper and lower floating balls 7, the buoyancy is very large, so that the upper and lower floating balls 7 are above the liquid surface. The inflatable airbag 706 can be evacuated. At this time, the inflatable airbag 706 will not block the drainage hole 703, so that the upper and lower floating balls 7 are below the liquid surface. The height of the upper and lower floating balls 7 is controlled by the change of the inflatable airbag 706, thereby determining whether to intercept floating objects or suspended objects;

[0052] Because the height of the upper and lower floating balls 7 determines the overall height, the upper ends of the common filter screen and the elastic filter screen 10 are fixedly connected to the outside of the hollow sphere 701 in the upper and lower floating balls 7, and the lower ends of the common filter screen and the elastic filter screen 10 are fixedly connected to the bottom sinking assembly 8.

[0053] The stretching assembly 11 includes a housing 1101, a connection hole 1102 opened on the housing 1101 for fixing with the traction rope 404, and a cylinder arranged inside the housing 1101. The extended end 1103 of the cylinder passes through the housing 1101 and is fixedly connected with the upper and lower floating balls 7 near the elastic filter 10. The elastic filter 10 is stretched to enlarge the gap inside the elastic filter 10, which is used to change the density. After the density is changed, fish can pass through. After the fish pass through, it can return to its original state to complete the interception of garbage.

[0054] The sinking assembly 8 includes a hollow sinking block 801, breakable end caps 806 disposed at both ends of the hollow sinking block 801, a second gas generator 802 disposed inside the hollow sinking block 801, and an expansion body 804 connected to the output end of the second gas generator 802, wherein the expansion end of the expansion body 804 is provided with a marking ball 805, and the marking ball 805 can float in the river. The hollow sinking block 801 helps the sinking assembly 8 to sink to the bottom, and the expansion body 804 allows the sinking assembly 8 to float. With the help of the marking ball 805 and manual labor, the upper and lower floating assemblies cooperate with the sinking assembly 8 to form a ring structure, which surrounds the intercepted garbage into a circle. The design of surrounding the circle makes it possible to salvage the garbage without collecting the garbage in advance. Compared with traditional salvage, the action of collecting the garbage is eliminated, thereby saving time and effort.

[0055] Specifically: the hollow sinking block 801 helps the sinking assembly 8 to sink to the bottom, but in salvage, the sinking assembly 8 needs to be removed so that it can cooperate with the upper and lower floating assemblies to form a ring-shaped structure. For this purpose, an expansion body 804 and a second gas generator 802 are provided. The second gas generator 802 expands the expansion body 804. After the expansion body 804 expands, it breaks through the breakable end cover 806 and starts to drive the hollow sinking block 801 to float. Then, in order to facilitate the floating of the expansion body 804, the output end of the second gas generator 802 is connected to a long connecting hose 803, and the free end of the connecting hose 803 is connected to the expansion body 804. Ensure that the expansion body 804 can float from the bottom of the river.

[0056] Specifically: a marking ball 805 is provided at the expansion end of the expansion body 804, and the marking ball 805 is manually found and fixed. It should be noted that when manually fixing the position of the marking ball 805, the marking ball 805 should be kept as close to both sides 2 of the river channel as possible. At this time, the traction rope 404 may change, so it is necessary to control the output of the traction motor 402, and it will also change the elastic filter screen 10. Therefore, it is also necessary to control the working condition of the stretching component 11 to ensure that the marking ball 805 floats up to drive the ordinary filter screen and the elastic filter screen 10 to float up, and the gap between the elastic filter screen 10 is not stretched open. The movement of the elastic filter screen 10 from bottom to top will not change the gap between the elastic filter screen 10, but will only compress the gap between the elastic filter screen 10. Reasonable use of the stretching component 11 can ensure that the gap between the elastic filter screen 10 is not too large. Finally, the upper and lower floating components are used to form a circle to cancel the action of artificially collecting garbage in advance and realize garbage salvage.

[0057] In order to achieve a better floating effect, the first gas generator 704 and the second gas generator 802 are of the same model and produce the same gas, which is helium. The first gas generator 704 and the second gas generator 802 are both helium generators. In the field where helium is easily available, helium is the easiest to obtain and the floating is fastest after filling with helium.

[0058] It also includes a liquid level sensor and a sensor, the liquid level sensor is arranged on the upper and lower floating balls 7, the upper and lower floating balls 7 are set to float above the liquid surface as zero scale, the sensor is used for artificial remote start of the first gas generator 704 and the second gas generator 802, the expansion body 804 and the inflatable airbag 706 are both provided with a suction component, the suction component is used to evacuate the expansion body 804 and the inflatable airbag 706. Ensure that the first gas generator 704 and the second gas generator 802 can be used remotely.

[0059] The liquid level sensor is used to determine the position of the upper and lower floats 7 at that time, and then to determine whether the first gas generator 704 and the vacuum assembly are working, so as to judge the position of the garbage intercepted. Due to the frequent floating and descending of the upper and lower floats 7, a vacuum assembly is required to be provided. The vacuum assembly is used to evacuate the expansion body 804 and the inflatable airbag 706, thereby completing the reasonable movement of the entire device.

[0060] The device solves the problem that the trash screen cannot change its density and cannot intercept the garbage at the gate 3 without affecting the passage of fish.

[0061] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A sluice gate cleaning device for water conservancy construction, characterized in that: It includes a traction assembly arranged on both sides of the river channel and an upper and lower floating assembly connected to the traction assembly for intercepting river garbage, wherein the traction assembly is used for the upper and lower floating assemblies to enter the river channel; The upper and lower floating components include A plurality of upper and lower floating balls arranged based on the width of the river channel, a traction rope connected to the traction assembly for connecting the upper and lower floating balls in series, a common filter screen and an elastic filter screen arranged below the upper and lower floating balls, and a sinking assembly for sinking to the bottom arranged at the bottom of the common filter screen and the elastic filter screen; The inflatable airbags in the upper and lower floating balls are used for drainage, and the traction ropes on the upper and lower floating balls close to the elastic filter screen are provided with a stretching assembly for moving the upper and lower floating balls on the traction ropes, and the movement of the upper and lower floating balls changes the gap between the elastic filter screens; An inflatable component for floating the sinking component is arranged inside the sinking component.

2. A sluice gate cleaning device for water conservancy construction according to claim 1, characterized in that: The traction assembly and the upper and lower floating assemblies are arranged in the water inlet direction of the gate, the gate is arranged on the dam, and the dam is arranged on both sides of the river channel.

3. A sluice gate cleaning device for water conservancy construction according to claim 2, characterized in that: The traction assembly includes a floor, a connecting column fixed to the floor, a through hole opened on the connecting column, a traction motor arranged on the outside of the connecting column, and a traction wheel arranged in the connecting column. The output shaft of the traction motor is coaxially connected with a coupling, and the free end of the coupling passes through the connecting column and is rotatably connected to the traction wheel. One end of the traction rope is wound around the connected traction wheel.

4. A sluice gate cleaning device for water conservancy construction according to claim 3, characterized in that: The upper and lower floating balls are slidably connected to the traction rope. The upper and lower floating balls include a pair of hollow spheres that can be spliced ​​into shape, a connecting channel for installing the traction rope arranged inside the hollow sphere, a through hole arranged on the outside of the hollow sphere, a support frame symmetrically arranged on the inner wall of the hollow sphere and a first gas generator fixed to the support frame. The inflatable airbag is connected to the output end of the first gas generator. A plurality of drainage holes are also arranged on the outside of the hollow sphere. The inflatable airbag is used to block the drainage holes after being inflated.

5. A sluice gate cleaning device for water conservancy construction according to claim 4, characterized in that: The upper ends of the common filter screen and the elastic filter screen are both fixedly connected to the outer surfaces of the hollow spheres in the upper and lower floating balls, and the lower ends of the common filter screen and the elastic filter screen are fixedly connected to the bottom sinking assembly.

6. A sluice gate cleaning device for water conservancy construction according to claim 5, characterized in that: The stretching assembly comprises a shell, a connection hole opened on the shell for fixing with a traction rope, and a cylinder arranged inside the shell. The extended end of the cylinder passes through the shell and is fixedly connected with upper and lower floating balls close to the elastic filter.

7. A sluice gate cleaning device for water conservancy construction according to claim 6, characterized in that: The sinking assembly includes a hollow sinking block, breakable end caps arranged at both ends of the hollow sinking block, a second gas generator arranged inside the hollow sinking block, and an expansion body connected to the output end of the second gas generator. The expansion end of the expansion body is provided with a marking ball, and the marking ball can float in the river channel.

8. A sluice gate cleaning device for water conservancy construction according to claim 7, characterized in that: The output end of the second gas generator is connected to a long connecting hose, and the free end of the connecting hose is connected to the expansion body.

9. A sluice gate cleaning device for water conservancy construction according to claim 8, characterized in that: The first gas generator and the second gas generator are of the same model and generate the same gas, which is helium. The first gas generator and the second gas generator are both helium generators.

10. A sluice gate cleaning device for water conservancy construction according to claim 9, characterized in that: It also includes a liquid level sensor and a sensor. The liquid level sensor is arranged on upper and lower floats. The upper and lower floats are set to float above the liquid surface as zero scale. The sensor is used for manual and remote start of the first gas generator and the second gas generator. The expansion body and the inflatable airbag are both provided with a vacuum assembly, and the vacuum assembly is used to vacuum the expansion body and the inflatable airbag.

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