A dredging device and dredging method for water conservancy and ecological engineering

Abstract

The invention discloses a dredging device for water conservancy ecological engineering and a dredging method thereof, and relates to the technical field of river channel dredging, comprising a dredging frame and a crushing device, wherein a dredging pipe is fixedly installed on the top of the dredging frame, a connecting buckle is fixedly installed on the top of the dredging frame, and a servo motor is fixedly installed on the top of the dredging frame, wherein the crushing device comprises a rotating rod, a sleeve, an extrusion rod, an arc block, a breaking rod, an arc rod, an S-shaped rod and a linkage plate, the sleeve moves upward to reset and drives the breaking rod and the S-shaped rod to move upward, the breaking rod moves upward to drive the arc rod to move upward, the arc rod and the breaking rod reciprocate to break up the silt agglomerated at the dredging location, the reciprocating motion of the arc rod and the breaking rod can evenly apply force, thereby effectively breaking up the agglomerated silt and improving the dredging efficiency, and the broken silt is convenient for further processing and transportation, thereby improving the overall processing capacity of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of river channel dredging, and in particular to a dredging device and a dredging method for a water conservancy ecological engineering project. Background Art

[0002] The dredging device of water conservancy ecological engineering usually consists of a dredge suction pump, a suction pipe, a recovery device and a screen.

[0003] The patent with patent announcement number CN116971439B relates to a river dredging device for water conservancy ecological engineering, including a first cylinder; a first sleeve is rotatably connected to the top of the first cylinder; a second sleeve is fixedly connected to the bottom end of the first cylinder; the bottom end of the second sleeve is open; a waterproof box is fixedly connected inside the first sleeve; one side of the waterproof box extending into the first cylinder is rotatably connected to the inner wall of the first cylinder; the bottom end of the second sleeve is fixedly connected to an annular bottom plate, and the inner side of the annular bottom plate is toothed; a second rotating shaft is rotatably connected to the bottom end of the waterproof box, and a drill bit is provided at the bottom end of the second rotating shaft; the outer wall of the drill bit is serrated; a power unit is provided in the waterproof box; the drill bit and the second sleeve are rotated by the power unit to solve the problem of hard lumps of garbage and other debris in the sludge, and prevent the debris from being too large during extraction and causing blockage in the mud pump.

[0004] In the above patent, the drill bit and the second sleeve are rotated by the power unit to remove the hard lumps of garbage and other debris in the sludge, and to prevent the debris from being too large to cause blockage in the sludge pump during extraction. However, it is difficult to break up the agglomerated sludge, and larger lumps of sludge will block the dredging pipe, increasing equipment failures and maintenance requirements, thereby resulting in a significant decrease in the efficiency of the dredging operation. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a silt removal device and a silt removal method for a water conservancy ecological project, which solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a dredging device for water conservancy and ecological engineering, including a dredging frame and a crushing device, wherein a dredging pipe is fixedly installed on the top of the dredging frame, a connecting buckle is fixedly installed on the top of the dredging frame, and a servo motor is fixedly installed on the top of the dredging frame, wherein the crushing device includes a rotating rod, a sleeve, an extrusion rod, an arc block, a scrambling rod, an arc rod, an S-shaped rod and a linkage plate, the sleeve moves upward to reset and drives the scrambling rod and the S-shaped rod to move upward, the scrambling rod moves upward to drive the arc rod to move upward, and the arc rod and the scrambling rod move back and forth to break the silt agglomerated at the dredging location To break up the dirt, the rotating rod is fixedly mounted on the output end of the servo motor, the sleeve is slidably mounted on the circumferential surface of the rotating rod, the extruding rod is fixedly mounted on the circumferential surface of the sleeve, the arc block is fixedly mounted on the top of the inner wall of the dredging frame, the breaking up rod is fixedly mounted on the circumferential surface of the sleeve, the arc rod is fixedly mounted on the side of the breaking up rod away from the rotating rod, the S-shaped rod is fixedly mounted on the circumferential surface of the sleeve, and the linkage plate is fixedly mounted on the circumferential surface of the sleeve, wherein a filtering device for preventing the dredging frame from being blocked is arranged inside the dredging frame, and a pushing device for preventing bag-like objects from adhering to the surface of the dredging frame is arranged inside the dredging frame.

[0007] According to the above technical solution, a protective rod is fixedly installed at the bottom of the dredging frame, and a protective ring is fixedly installed at the bottom of the protective rod. The end of the protective rod close to the casing is set as an arc surface. If a larger stone is encountered, it will first contact the protective rod and the protective ring and collide with the protective rod and the protective ring.

[0008] According to the above technical solution, a No. 1 spring is arranged between the rotating rod and the sleeve, and the No. 1 spring can drive the sleeve to reset. The end of the extrusion rod away from the rotating rod is set as an arc surface, and the S-shaped rod is elastic.

[0009] According to the above technical scheme, the filtering device includes a support plate, a support rod, a filter plate, a scraper rod, a scraper groove, a movable rod and a connecting plate. The linkage plate moves upward to break away from the contact with the filter plate. After the filter plate breaks away from the contact with the linkage plate, the filter plate reciprocates to improve its own filtering effect of large particles of sand and gravel. The support plate is fixedly mounted on the inner wall of the dredging frame, the support rod is fixedly passed through the upper and lower walls of the support plate, the filter plate is slidably mounted on the circumferential surface of the support rod, the scraper rod is slidably mounted on the bottom of the filter plate, the scraper groove is opened at the bottom of the scraper rod, the movable rod is rotatably mounted on the inner wall of the scraper groove, and one end of the connecting plate close to the sleeve is fixedly mounted on the circumferential surface of the movable rod, and the other end of the connecting plate is hinged to the inner wall of the dredging frame.

[0010] According to the above technical solution, a No. 2 spring is arranged between the support rod and the filter plate, and the No. 2 spring can drive the filter plate to reset. The filter plate contacts the inner wall of the dredging frame, and a limiting ring is fixedly installed on the circumferential surface of the support rod.

[0011] According to the above technical solution, a No. 3 spring is arranged between the scraper rod and the filter plate, one end of the No. 3 spring is arranged on the surface of the scraper rod, and the other end is arranged on the bottom of the filter plate. The scraper rod can be driven to reset by the No. 3 spring, and a clockwork spring is arranged between the moving rod and the scraper groove, one end of the clockwork spring is arranged on the circumferential surface of the moving rod and the other end is arranged on the inner wall of the scraper groove. A through hole is opened on the top of the filter plate, and the sleeve can pass through the top of the filter plate through the through hole.

[0012] According to the above technical solution, the pushing device includes a load-bearing hole, a load-bearing plate, a load-bearing rod, a hollow frame, a connecting rod, a pushing plate and a protrusion. The hollow frame moves in a direction away from the sleeve to drive the connecting rod to move. The movement of the connecting rod drives the pushing plate to move to push the bag-like object adhered to the circumferential surface of the dredging frame. The load-bearing hole is opened on the circumferential surface of the dredging frame, the load-bearing plate is fixedly installed on the inner wall of the load-bearing hole, the load-bearing rod slides through the front and rear walls of the load-bearing plate, the hollow frame is fixedly installed at both ends of the load-bearing rod, the connecting rod is fixedly installed on the side of the hollow frame away from the sleeve, the pushing plate is fixedly installed on the circumferential surface of the connecting rod, and the protrusion is fixedly installed on the inner wall of the hollow frame.

[0013] According to the above technical solution, a No. 4 spring is arranged between the load-bearing plate and the load-bearing rod, and the No. 4 spring can drive the load-bearing rod to reset. The end of the hollow frame close to the sleeve is set as an inclined surface, and the hollow frame contacts the bottom of the filter plate.

[0014] A dredging method for a dredging device for a water conservancy ecological project comprises the following steps:

[0015] Step 1: After the dredging frame is dropped into the underwater dredging location, the servo motor drives the rotating rod to rotate, the rotating rod drives the casing to rotate, the casing drives the extrusion rod to rotate, the extrusion rod rotates to contact the arc surface block and extrude the arc surface block;

[0016] Step 2: The extrusion rod moves downward under the reaction force of the extrusion arc surface block, the extrusion rod moves downward to drive the sleeve to move downward, the sleeve moves downward to drive the scattering rod and the linkage plate to move downward, and the scattering rod moves downward to drive the arc surface rod to move downward;

[0017] Step 3: After the extrusion rod continues to rotate and disengages from the arc surface block, the sleeve moves upward and resets under the elastic force of the No. 1 spring, and the upward movement and reset of the sleeve drives the breaking rod and the S-shaped rod to move upward;

[0018] Step 4: The breaking rod moves upward to drive the arc rod to move upward, and the arc rod and the breaking rod move back and forth to break up the silt agglomerated at the dredging location. After the silt agglomerated at the dredging location is broken up, the silt at the dredging location is extracted through the dredging pipe.

[0019] The present invention provides a silt removal device for water conservancy ecological engineering, which has the following beneficial effects:

[0020] (1) The invention drives the arc rod to move upward by moving the breaking rod upward, and the arc rod and the breaking rod reciprocate to break up the silt agglomerated at the dredging location. The reciprocating motion of the arc rod and the breaking rod can evenly apply force, thereby effectively breaking up the agglomerated silt and improving the dredging efficiency. The broken silt is convenient for further processing and transportation, thereby improving the overall processing capacity of the equipment. When the dredging frame is thrown underwater, if it encounters larger stones, it will first contact the protective rod and the protective ring and collide with the protective rod and the protective ring. The protective rod and the protective ring protect the rotating rod and the casing, thereby reducing equipment damage caused by the impact of stones or hard foreign objects, thereby protecting the rotating rod and the casing from damage caused by the impact, maintaining their efficient operation, and avoiding interruption of the dredging operation.

[0021] (2) In the present invention, after the filter plate is separated from the contact with the linkage plate, the filter plate moves upward and resets under the elastic force of the second spring. The reciprocating movement of the filter plate improves its filtering effect of large particles of sand and gravel. The reciprocating shaking of the filter plate can effectively remove the sand and gravel accumulated at the bottom of the filter plate, maintain the stable filtering effect, and thus improve the efficiency of sludge extraction. At the same time, the connecting plate moves downward to squeeze the scraper rod to move toward the direction close to the sleeve to scrape the bottom of the filter plate. The scraping of the scraper rod can effectively remove larger foreign matter and sediment accumulated at the bottom of the filter plate, further avoiding blockage of the filter plate pores, and ensuring normal flow and filtering efficiency during sludge extraction.

[0022] (3) The invention drives the connecting rod to move by moving the hollow frame away from the casing, and the movement of the connecting rod drives the pushing plate to move to push the bag-like objects adhered to the circumferential surface of the dredging frame. By regularly pushing the bag-like objects, it is possible to prevent excessive accumulation of bag-like objects on the circumferential surface of the dredging frame and affect the efficiency of sludge suction, thereby maintaining the filtration efficiency of the dredging device. At the same time, the vibration of the hollow frame drives the connecting rod to vibrate, and the vibration of the connecting rod drives the pushing plate to resonate together. The vibration of the pushing plate can effectively loosen and cause the bag-like objects to fall off the circumferential surface, thereby improving the cleaning effect of the bag-like objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the dredging frame of the present invention;

[0025] Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement of part A;

[0026] Figure 4 This is a schematic diagram of the position structure of the rotating rod and the sleeve of the present invention;

[0027] Figure 5 For the present invention Figure 4 A schematic diagram of the structure of part B in the middle is enlarged;

[0028] Figure 6 For the present invention Figure 4 The enlarged schematic diagram of the structure of part C in the middle;

[0029] Figure 7 This is a schematic diagram of the desilting frame and the connection buckle position structure of the present invention;

[0030] Figure 8 It is a schematic diagram of the position structure of the load-bearing plate and the load-bearing rod of the present invention.

[0031] In the figure: 1. dredging frame; 2. dredging pipe; 3. connecting buckle; 4. servo motor; 5. rotating rod; 6. sleeve; 7. extrusion rod; 8. arc block; 9. breaking rod; 10. arc rod; 11. protection rod; 12. protection ring; 13. S-shaped rod; 14. linkage plate; 151. support plate; 152. support rod; 153. filter plate; 154. scraper rod; 155. scraper groove; 156. moving rod; 157. connecting plate; 161. load-bearing hole; 162. load-bearing plate; 163. load-bearing rod; 164. hollow frame; 165. connecting rod; 166. push plate; 167. bump. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 8, one embodiment of the present invention is: a dredging device for water conservancy ecological engineering, including a dredging frame 1, and also including a crushing device, wherein a dredging pipe 2 is fixedly installed on the top of the dredging frame 1, a connecting buckle 3 is fixedly installed on the top of the dredging frame 1, and a servo motor 4 is fixedly installed on the top of the dredging frame 1, wherein the crushing device includes a rotating rod 5, a sleeve 6, an extrusion rod 7, an arc block 8, a scattering rod 9, an arc rod 10, an S-shaped rod 13 and a linkage plate 14, the rotating rod 5 is fixedly installed at the output end of the servo motor 4, the sleeve 6 is slidably installed on the circumferential surface of the rotating rod 5, and the extrusion rod 7 is fixedly installed It is installed on the circumferential surface of the casing 6, the cambered block 8 is fixedly installed on the top of the inner wall of the dredging frame 1, the breaking rod 9 is fixedly installed on the circumferential surface of the casing 6, the cambered rod 10 is fixedly installed on the side of the breaking rod 9 away from the rotating rod 5, the S-shaped rod 13 is fixedly installed on the circumferential surface of the casing 6, and the linkage plate 14 is fixedly installed on the circumferential surface of the casing 6. The reciprocating motion of the cambered rod 10 and the breaking rod 9 can evenly apply force, thereby effectively breaking up the agglomerated sludge and improving the dredging efficiency, and the broken sludge is convenient for further processing and transportation. The external traction equipment can be fixed to the dredging frame 1 through the connecting buckle 3.

[0034] A protective rod 11 is fixedly installed at the bottom of the dredging frame 1, and a protective ring 12 is fixedly installed at the bottom of the protective rod 11. The end of the protective rod 11 close to the casing 6 is set as an arc surface. If a larger stone is encountered, it will first contact the protective rod 11 and the protective ring 12 and collide with the protective rod 11 and the protective ring 12. The protective rod 11 and the protective ring 12 protect the rotating rod 5 and the casing 6, which can reduce the damage to the equipment caused by the impact of stones or hard foreign objects, thereby protecting the rotating rod 5 and the casing 6 from damage caused by the impact.

[0035] A No. 1 spring is arranged between the rotating rod 5 and the sleeve 6, and the No. 1 spring can drive the sleeve 6 to reset. The end of the extrusion rod 7 away from the rotating rod 5 is arranged as an arc surface, and the S-shaped rod 13 is elastic.

[0036] A dredging method for a dredging device for a water conservancy ecological project comprises the following steps:

[0037] Step 1: After the dredging frame 1 is dropped into the underwater dredging location, the servo motor 4 drives the rotating rod 5 to rotate, the rotating rod 5 drives the sleeve 6 to rotate, the sleeve 6 drives the extrusion rod 7 to rotate, the extrusion rod 7 rotates to contact the arc surface block 8 and extrude the arc surface block 8;

[0038] Step 2: The extrusion rod 7 moves downward under the reaction force of the extrusion arc block 8, the extrusion rod 7 moves downward to drive the sleeve 6 to move downward, the sleeve 6 moves downward to drive the breaking rod 9 and the linkage plate 14 to move downward, the breaking rod 9 moves downward to drive the arc rod 10 to move downward;

[0039] Step 3: After the extrusion rod 7 continues to rotate and disengages from the arc surface block 8, the sleeve 6 moves upward and resets under the elastic force of the first spring, and the sleeve 6 moves upward and resets to drive the breaking rod 9 and the S-shaped rod 13 to move upward;

[0040] Step 4: The breaking rod 9 moves upward to drive the arc rod 10 to move upward. The arc rod 10 and the breaking rod 9 move back and forth to break up the sludge agglomerated at the dredging location. After the sludge agglomerated at the dredging location is broken up, the sludge at the dredging location is extracted through the dredging pipe 2.

[0041] When this embodiment is working: after the dredging frame 1 is thrown into the underwater dredging place, the servo motor 4 drives the rotating rod 5 to rotate, the rotating rod 5 rotates to drive the sleeve 6 to rotate, the sleeve 6 rotates to drive the extrusion rod 7 to rotate, the extrusion rod 7 rotates to contact the arc surface block 8 and squeeze the arc surface block 8, and at the same time, the extrusion rod 7 moves downward under the reaction force of the extrusion arc surface block 8, the extrusion rod 7 moves downward to drive the sleeve 6 to move downward, the sleeve 6 moves downward to pull the No. 1 spring, the No. 1 spring is pulled by the sleeve 6 to produce deformation and accumulate force, and at the same time, the sleeve 6 moves downward to drive the breaking rod 9 and the linkage plate 14 to move downward, and the breaking rod 9 moves downward to drive the arc surface rod 1 0 moves downward, and after the extrusion rod 7 continues to rotate and disengages from the contact with the cambered block 8, the sleeve 6 moves upward and resets under the elastic force of the first spring, and the sleeve 6 moves upward and resets to drive the breaking rod 9 and the S-shaped rod 13 to move upward, and the breaking rod 9 moves upward to drive the cambered rod 10 to move upward, and the cambered rod 10 and the breaking rod 9 move back and forth to break up the silt agglomerated at the dredging location. At the same time, when the dredging frame 1 is thrown underwater, if it encounters larger stones, it will first contact with the protective rod 11 and the protective ring 12 and collide with the protective rod 11 and the protective ring 12. After the silt agglomerated at the dredging location is broken up, the silt at the dredging location is extracted through the dredging pipe 2.

[0042] See also Figure 1-Figure 8On the basis of the above embodiment, in another embodiment of the present invention, a filtering device for preventing the silting frame 1 from being blocked is provided inside the silting frame 1, and a pushing device for preventing bag-like objects from adhering to the surface of the silting frame 1 is provided inside the silting frame 1. The filtering device includes a support plate 151, a support rod 152, a filter plate 153, a scraper rod 154, a scraper groove 155, a moving rod 156 and a connecting plate 157. The support plate 151 is fixedly mounted on the inner wall of the silting frame 1, and the support rod 152 is fixedly passed through the upper and lower walls of the support plate 151. The filter plate 153 is slidably installed on the circumferential surface of the support rod 152, the scraper rod 154 is slidably installed on the bottom of the filter plate 153, the scraper groove 155 is opened at the bottom of the scraper rod 154, the moving rod 156 is rotatably installed on the inner wall of the scraper groove 155, and the end of the connecting plate 157 close to the sleeve 6 is fixedly installed on the circumferential surface of the moving rod 156, and the other end of the connecting plate 157 is hinged to the inner wall of the dredging frame 1. The reciprocating shaking of the filter plate 153 can effectively remove the sand and gravel accumulated at the bottom of the filter plate 153, keep the filtering effect stable, and thus improve the efficiency of sludge extraction.

[0043] A No. 2 spring is arranged between the support rod 152 and the filter plate 153, and the No. 2 spring can drive the filter plate 153 to reset. The filter plate 153 contacts the inner wall of the dredging frame 1, and a limiting ring is fixedly installed on the circumferential surface of the support rod 152. The scraping of the scraper rod 154 can effectively remove larger foreign matter and sediment accumulated at the bottom of the filter plate 153, further avoiding blockage of the filter channel.

[0044] A No. 3 spring is arranged between the scraper rod 154 and the filter plate 153, one end of the No. 3 spring is arranged on the surface of the scraper rod 154, and the other end is arranged on the bottom of the filter plate 153. The No. 3 spring can drive the scraper rod 154 to reset. A clockwork spring is arranged between the moving rod 156 and the scraper groove 155, one end of the clockwork spring is arranged on the circumferential surface of the moving rod 156 and the other end is arranged on the inner wall of the scraper groove 155. A through hole is opened at the top of the filter plate 153, and the sleeve 6 can pass through the top of the filter plate 153 through the through hole.

[0045] The pushing device includes a load-bearing hole 161, a load-bearing plate 162, a load-bearing rod 163, a hollow frame 164, a connecting rod 165, a pushing plate 166 and a protrusion 167. The load-bearing hole 161 is opened on the circumferential surface of the dredging frame 1, the load-bearing plate 162 is fixedly installed on the inner wall of the load-bearing hole 161, the load-bearing rod 163 slides through the front and rear walls of the load-bearing plate 162, the hollow frame 164 is fixedly installed at both ends of the load-bearing rod 163, the connecting rod 165 is fixedly installed on the side of the hollow frame 164 away from the sleeve 6, the pushing plate 166 is fixedly installed on the circumferential surface of the connecting rod 165, and the protrusion 167 is fixedly installed on the inner wall of the hollow frame 164. By regularly pushing the bag-like objects, it is possible to prevent the bag-like objects on the circumferential surface of the dredging frame 1 from accumulating too much and affecting the efficiency of sucking sludge.

[0046] A No. 4 spring is arranged between the load-bearing plate 162 and the load-bearing rod 163 , and the No. 4 spring can drive the load-bearing rod 163 to reset. One end of the hollow frame 164 close to the sleeve 6 is set as an inclined surface, and the hollow frame 164 contacts the bottom of the filter plate 153 .

[0047] When the present embodiment is working, the sleeve 6 moves downward to drive the breaking rod 9 and the linkage plate 14 to move downward, the linkage plate 14 moves downward to contact the filter plate 153 and squeeze the filter plate 153, the filter plate 153 is squeezed and moves downward, the filter plate 153 moves downward to pull the No. 2 spring, the No. 2 spring is pulled by the filter plate 153 to produce deformation and accumulate force, the sleeve 6 moves upward to drive the linkage plate 14 to move upward, the linkage plate 14 moves upward to break away from the contact with the filter plate 153, and the filter plate 153 moves downward to pull the No. 2 spring. After breaking away from the contact with the linkage plate 14, the filter plate 153 moves upward and resets under the elastic force of the second spring, and the filter plate 153 moves back and forth to improve its filtering effect of large particles of sand and gravel. At the same time, the filter plate 153 moves downward to drive the scraper rod 154 to move downward, and the scraper rod 154 moves downward to drive the moving rod 156 to move downward, and the moving rod 156 moves downward to drive the connecting plate 157 to move downward, and the connecting plate 157 moves downward to squeeze the scraper rod 154 to move toward the direction close to the sleeve 6 to scrape the bottom of the filter plate 153.

[0048] The filter plate 153 is squeezed by the linkage plate 14 and moves downward. The filter plate 153 moves downward and contacts the hollow frame 164 and squeezes the hollow frame 164. The hollow frame 164 is squeezed by the filter plate 153 and moves in the direction away from the sleeve 6. The hollow frame 164 moves in the direction away from the sleeve 6 and drives the load-bearing rod 163 to move. The load-bearing rod 163 moves to squeeze the No. 4 spring. The No. 4 spring is squeezed by the load-bearing rod 163 to deform and accumulate force. At the same time, the hollow frame 164 moves in the direction away from the sleeve 6 and drives the connecting rod 165 to move. The connecting rod 165 moves and drives the push plate 166 to move to push the bag-like object adhered to the circumferential surface of the dredging frame 1. At the same time, the hollow frame 164 moves in the direction away from the sleeve 6 and drives the protrusion 1 67 moves, the protrusion 167 moves and hits the load-bearing plate 162 to generate vibration, the vibration of the protrusion 167 drives the hollow frame 164 to vibrate, the vibration of the hollow frame 164 drives the connecting rod 165 to vibrate, the vibration of the connecting rod 165 drives the pushing plate 166 to resonate together, and the filter plate 153 moves upward and resets under the elastic force of the second spring, the filter plate 153 moves upward and resets to break away from the contact with the hollow frame 164, after the hollow frame 164 breaks away from the contact with the filter plate 153, the load-bearing rod 163 moves and resets in the direction close to the sleeve 6 under the elastic force of the fourth spring, the load-bearing rod 163 moves and resets in the direction close to the sleeve 6 to drive the hollow frame 164 to move, and the hollow frame 164 moves and drives the connecting rod 165 and the pushing plate 166 to move and reset.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dredging device for water conservancy ecological engineering, comprising a dredging frame (1), characterized in that: Also includes a crushing device; Wherein, a dredging pipe (2) is fixedly mounted on the top of the dredging frame (1), a connecting buckle (3) is fixedly mounted on the top of the dredging frame (1), and a servo motor (4) is fixedly mounted on the top of the dredging frame (1); The crushing device comprises a rotating rod (5), a sleeve (6), an extrusion rod (7), an arc surface block (8), a breaking rod (9), an arc surface rod (10), an S-shaped rod (13) and a linkage plate (14), wherein the rotating rod (5) is fixedly mounted on the output end of the servo motor (4), the sleeve (6) is slidably mounted on the circumferential surface of the rotating rod (5), the extrusion rod (7) is fixedly mounted on the circumferential surface of the sleeve (6), the arc surface block (8) is fixedly mounted on the top of the inner wall of the dredging frame (1), the breaking rod (9) is fixedly mounted on the circumferential surface of the sleeve (6), the arc surface rod (10) is fixedly mounted on a side of the breaking rod (9) away from the rotating rod (5), the S-shaped rod (13) is fixedly mounted on the circumferential surface of the sleeve (6), and the linkage plate (14) is fixedly mounted on the circumferential surface of the sleeve (6); Wherein, a filtering device for preventing the silting frame (1) from being blocked is arranged inside the silting frame (1), and a pushing device for preventing the bag-like objects from adhering to the surface of the silting frame (1) is arranged inside the silting frame (1); The filtering device comprises a support plate (151), a support rod (152), a filter plate (153), a scraper rod (154), a scraper groove (155), a moving rod (156) and a connecting plate (157); the support plate (151) is fixedly mounted on the inner wall of the dredging frame (1); the support rod (152) is fixedly penetrated through the upper and lower walls of the support plate (151); the filter plate (153) is slidably mounted on the circumferential surface of the support rod (152); the scraper rod (154) is slidably mounted on the bottom of the filter plate (153); the scraper groove (155) is provided at the bottom of the scraper rod (154); the moving rod (156) is rotatably mounted on the inner wall of the scraper groove (155); one end of the connecting plate (157) close to the sleeve (6) is fixedly mounted on the circumferential surface of the moving rod (156); and the other end of the connecting plate (157) is hinged to the inner wall of the dredging frame (1); The pushing device comprises a load-bearing hole (161), a load-bearing plate (162), a load-bearing rod (163), a hollow frame (164), a connecting rod (165), a pushing plate (166) and a protrusion (167); the load-bearing hole (161) is formed on the circumferential surface of the dredging frame (1); the load-bearing plate (162) is fixedly mounted on the inner wall of the load-bearing hole (161); the load-bearing rod (163) slides through the front and rear walls of the load-bearing plate (162); the hollow frame (164) is fixedly mounted on both ends of the load-bearing rod (163); the connecting rod (165) is fixedly mounted on a side of the hollow frame (164) away from the sleeve (6); the pushing plate (166) is fixedly mounted on the circumferential surface of the connecting rod (165); and the protrusion (167) is fixedly mounted on the inner wall of the hollow frame (164); The hollow frame (164) is in contact with the bottom of the filter plate (153).

2. A water conservancy ecological engineering dredging device according to claim 1, characterized in that: A protection rod (11) is fixedly mounted on the bottom of the desilting frame (1), a protection ring (12) is fixedly mounted on the bottom of the protection rod (11), and one end of the protection rod (11) close to the sleeve (6) is arranged as a curved surface.

3. A water conservancy ecological engineering dredging device according to claim 2, characterized in that: A No. 1 spring is arranged between the rotating rod (5) and the sleeve (6); one end of the extrusion rod (7) away from the rotating rod (5) is arranged as an arc surface; and the S-shaped rod (13) is elastic.

4. A water conservancy ecological engineering dredging device according to claim 1, characterized in that: A No. 2 spring is provided between the support rod (152) and the filter plate (153); the filter plate (153) is in contact with the inner wall of the dredging frame (1); and a limit ring is fixedly mounted on the circumferential surface of the support rod (152).

5. A water conservancy ecological engineering dredging device according to claim 4, characterized in that: A No. 3 spring is provided between the scraper rod (154) and the filter plate (153), a spring spring is provided between the moving rod (156) and the scraper groove (155), and a through hole is provided at the top of the filter plate (153).

6. A water conservancy ecological engineering dredging device according to claim 1, characterized in that: A No. 4 spring is provided between the load-bearing plate (162) and the load-bearing rod (163), and one end of the hollow frame (164) close to the sleeve (6) is provided as an inclined surface.

7. A dredging method for a water conservancy and ecological engineering dredging device, using the water conservancy and ecological engineering dredging device according to claim 3, characterized in that: The following steps are involved: Step 1: After the dredging frame (1) is dropped into the underwater dredging location, the servo motor (4) operates to drive the rotating rod (5) to rotate, the rotating rod (5) rotates to drive the sleeve (6), the sleeve (6) rotates to drive the extrusion rod (7) to rotate, the extrusion rod (7) rotates to contact the arc surface block (8) and extrudes the arc surface block (8); Step 2: the extrusion rod (7) moves downward under the reaction force of the extrusion arc surface block (8), the extrusion rod (7) moves downward and drives the sleeve (6) to move downward, the sleeve (6) moves downward and drives the scattering rod (9) and the linkage plate (14) to move downward, and the scattering rod (9) moves downward and drives the arc surface rod (10) to move downward; Step 3: After the extrusion rod (7) continues to rotate and is out of contact with the arc surface block (8), the sleeve (6) moves upward and resets under the elastic force of the first spring, and the sleeve (6) moves upward and resets, driving the breaking rod (9) and the S-shaped rod (13) to move upward; Step 4: The breaking rod (9) moves upward to drive the arc rod (10) to move upward. The arc rod (10) and the breaking rod (9) move back and forth to break up the sludge agglomerated at the dredging location. After the sludge agglomerated at the dredging location is broken up, the sludge at the dredging location is extracted through the dredging pipe (2).

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