CN116180835A

CN116180835A - River dredging device for water conservancy construction and application method thereof

Info

Publication number: CN116180835A
Application number: CN202310293817.1A
Authority: CN
Inventors: 洪云杰; 张尔林; 洪文森
Original assignee: Kaiyi Environment Construction Group Co ltd
Current assignee: Kaiyi Environment Construction Group Co ltd
Priority date: 2023-03-22
Filing date: 2023-03-22
Publication date: 2023-05-30

Abstract

The invention belongs to the technical field of water conservancy construction, in particular to a river dredging device for water conservancy construction and a use method thereof, and as long-time sludge discharge is carried out, the sludge can be accumulated on a filter screen, and the filter screen is blocked for a long time, so that dredging efficiency is affected; the device comprises a dredging box, wherein a supporting plate is arranged on the dredging box, a sludge pump is fixedly arranged on the top surface of the supporting plate, one end interface of the sludge pump is connected with a dredging mechanism, and the other end of the sludge pump is connected with the outer side wall of a sludge discharge pipe; the dredging mechanism comprises a dredging plate arranged on the top surface of a dredging box, a dredging motor is fixedly arranged on the bottom surface of the dredging plate, the output end of the dredging motor is connected with the top end of a dredging rotating rod, and the driving rod on the driving mechanism is enabled to reset, and then the driven support rod is enabled to reset to the labor of a filter plate, so that the filter plate is enabled to repeatedly move, and the reciprocating motion is matched with the scraping rod, so that dredging efficiency is improved.

Description

River dredging device for water conservancy construction and application method thereof

Technical Field

The invention belongs to the technical field of water conservancy construction, and particularly relates to a river dredging device for water conservancy construction and a using method thereof.

Background

River dredging generally refers to river treatment, and belongs to hydraulic engineering. The silt deposited on the river bottom is blown and stirred into turbid water by mechanical equipment and flows away along with the river water, so that the dredging effect is achieved. The related art can refer to the Chinese patent application with publication number CN202111279668.0, and discloses an environment-friendly river dredging device for water conservancy construction, which comprises a shell, a top shell, a lifting bracket, a rotating rod, an illuminating lamp, a lifting motor, a rotating base, a rotating motor, a water pump, a water suction pipe, a water storage tank, a filter screen, a drain pipe, a driving motor, a transmission device, a rotating wheel, an anti-skid crawler belt, a rotating shaft, a gear set and a rotating bracket; the shell is rotationally connected with the top shell; the side surface of the top shell is connected with the lifting bracket; the lifting bracket is rotationally connected with the rotating rod; one end of the rotating rod, which is far away from the lifting bracket, is connected with the illuminating lamp; the bottom of the illuminating lamp is provided with a camera; the camera is connected with the rotating rod; the inside of the top shell is connected with a lifting motor; the output end of the lifting motor is connected with the rotating rod; the bottom of the top shell is rotationally connected with the rotating base; the rotating base is linked with the top of the shell.

In view of the above-mentioned related art, the inventors considered that the device left sludge in the reservoir through the filter screen, thereby discharging excessive water; because long-time discharged silt, silt can pile up on the filter screen, can lead to the filter screen to block up for a long time, influences the efficiency of desilting.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a river dredging device for water conservancy construction and a use method thereof, which effectively solve the problems in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: the river dredging device for water conservancy construction comprises a dredging box, wherein a supporting plate is arranged on the dredging box, a sludge pump is fixedly arranged on the top surface of the supporting plate, one end interface of the sludge pump is connected with a dredging mechanism, and the other end of the sludge pump is connected with the outer side wall of a sludge discharge pipe;

the dredging mechanism comprises a dredging plate arranged on the top surface of a dredging box, a dredging motor is fixedly arranged on the bottom surface of the dredging plate, the output end of the dredging motor is connected with the top end of a dredging rotating rod, one end of the dredging rotating rod, which is far away from the dredging plate, penetrates through a first bearing on a mud inlet pipe, spiral blades are arranged on the dredging rotating rod, clamping plates are symmetrically arranged on the mud inlet pipe, and the clamping plates are fixedly connected with the dredging box; a water pump is arranged on one side of the dredging box, which is far away from the mud inlet pipe, a water pipe of the water pump penetrates through the dredging box, and the bottom surface of the water pump is connected with a connecting plate arranged on the side surface of the dredging box; the dredging box is provided with a dredging block, the dredging block is fixedly provided with a circulating motor, and the output end of the circulating motor is connected with the sweeping linkage removing unit.

Preferably, the sweeping linkage removing unit comprises a circulating bevel gear arranged at the output end of the circulating motor, the circulating bevel gear is in meshed connection with a cleaning bevel gear, a cleaning threaded shaft is arranged on the cleaning bevel gear, the cleaning threaded shaft is in transmission connection with a cleaning base, and the cleaning base is fixedly connected with the top surface of the dredging box; the pressure control device comprises a pressure control compound movement component, a pressure control box, a pressure control compound movement component, a pressure control box and a thread rotating block, wherein the pressure control compound movement component is arranged on the pressure control compound movement component; a guide block is fixedly arranged on the bottom surface of the threaded rotating block, a guide rod is movably arranged on the guide block, and two ends of the guide rod are fixedly connected with the side surface of the cleaning base; the guide rod is sleeved with a guide spring, one end of the guide spring is fixedly connected with the side face of the guide block, and the other end of the guide spring is fixedly connected with the side face of the cleaning base.

Preferably, a scraping rod is arranged on the bottom surface of the guide block, and the scraping rod is connected with the side surface of the filter plate in a matching way; a linkage side plate is fixedly arranged on one side, away from the dredging motor, of the guide block, a linkage rotating shaft is arranged on the linkage side plate in a transmission manner, one end of the linkage rotating shaft is connected with the side face of a linkage gear, the linkage gear is meshed with a fixed rack, linkage supporting rods are symmetrically arranged on the bottom face of the fixed rack, and the linkage supporting rods are fixedly connected with the side face of the cleaning base; the other end of the linkage rotating shaft is connected with the crank rocker; one end of the crank rocker is connected with the linkage rotating shaft, and the other end of the crank rocker is in transmission connection with the side face of the guide sliding block; the guide sliding block is connected with the engagement driving mechanism.

Preferably, the pressure control compound action assembly comprises a force control rod arranged on the force control box, one end of the force control rod is fixedly connected with the side surface of the relay transverse plate, and the other end of the force control rod penetrates through the force control box and is connected with the pressure action transverse plate; the limiting blocks are symmetrically arranged on the pressing transverse plates and are in sliding connection with limiting grooves arranged on the force control boxes; limiting rods are symmetrically arranged on the limiting blocks, and two ends of each limiting rod penetrate through the limiting blocks and are connected with the side surfaces of the limiting grooves; the limiting rod is sleeved with a limiting spring, one end of the limiting spring is connected with the limiting groove, and the other end of the limiting spring is connected with the limiting block; the pressing transverse plate is symmetrically provided with double-acting blocks, the double-acting blocks are movably provided with hinge rods, one ends of the hinge rods, which are far away from the relay transverse plate, are movably connected with brake blocks, and the brake blocks are slidably connected with brake grooves arranged on the force control box.

Preferably, the engagement striking mechanism comprises a guide sliding rail which is arranged in a sliding way with a guide sliding block, the two ends of the guide sliding rail are provided with first limiting plates, the side surfaces of the first limiting plates are fixedly connected with the side surfaces of the linkage side plates, the guide sliding block is symmetrically provided with mounting blocks, the mounting blocks are provided with directional rods, the two ends of each directional rod penetrate through the mounting blocks and are fixedly connected with the side surfaces of the engagement base, and the engagement base is fixedly connected with the side surfaces of the first limiting plates; the directional rod is sleeved with a directional spring, one end of the directional spring is fixedly connected with the engagement base, and the other end of the directional spring is fixedly connected with the mounting block; the two mounting blocks are connected with a stabilizing rack together, the stabilizing rack is meshed with a stabilizing gear, a connecting rotating shaft is mounted on the stabilizing gear, and the connecting rotating shaft penetrates through the driving bevel gear to be in transmission connection with the side face of the stabilizing base; the stable base is fixedly connected with the guide sliding rail; the driving bevel gear is connected with the driven bevel gear in a meshed manner, a driven rotating shaft is arranged on the driven bevel gear, and the driven rotating shaft penetrates through the driving base and is fixedly connected with the side face of the driving striking rod; the striking base is fixedly connected with the bottom surface of the engagement base; the driving striking rod is provided with a first linking seat which is connected with the return rail limiting mechanism through a pull rope; the driving striking rod is matched and connected with the driven bearing rod, a side moving rotating rod is arranged on the side surface of the driven bearing rod, and the side moving rotating rod is connected with the flattening unit; the end points of the driven bearing rods are connected with the side surfaces of the filter plates in a matched manner; the filter plates are symmetrically provided with position-making plates which are connected with position-making grooves arranged on the dredging box; displacement rods are symmetrically arranged on two sides of the positioning plate and are connected with displacement grooves arranged on the positioning grooves; the displacement rod is sleeved with a displacement spring, one end of the displacement spring is connected with the position-making plate, and the other end of the displacement spring is connected with the position-making groove.

Preferably, a brake rod is arranged on the brake block, and two ends of the brake rod penetrate through the brake block to be connected with the brake groove; a brake spring is sleeved on the brake rod, and one end of the brake spring is connected with the side surface of the brake block; the other end is connected with the brake groove; the pressing transverse plate is provided with a fitting block which is connected with a fitting box arranged in the force control box in a matched manner; the movable contact piece is arranged on the laminating block and is in fit connection with the static contact piece arranged in the laminating box; the contact of the movable contact piece and the static contact piece is used for controlling the forward and reverse rotation setting of the circulating motor.

Preferably, the flattening unit comprises a flattening base which is arranged on the side movable rotating rod in a transmission way, the flattening base is fixedly connected with the side surface of the engagement base, a first base is arranged on the flattening base, the first base is connected with a second base through a tension spring, and the second base is connected with the driven bearing rod; one end of the side moving rotating rod, which is far away from the flattening base, is connected with a sector gear, the sector gear is meshed with a flattening rack, extension rods are installed at two ends of the flattening rack, and the extension rods are connected with a second limiting plate; two extension sleeve blocks are arranged on the extension rod, one end of one extension sleeve block is fixedly connected with the striking base, the other end of the extension sleeve block is provided with a connecting rod, the connecting rod is connected with the other extension sleeve block, and the extension sleeve blocks are movably connected with the extension rod; the special-shaped rod is arranged on the extension rod and is connected with the stop piece; the extension rod is sleeved with a connecting spring, one end of the connecting spring is connected with the extension sleeve block, and the other end of the connecting spring is connected with the second limiting plate.

Preferably, the double-track limiting mechanism comprises a second linkage seat connected with a pull rope, the pull rope is connected with the second linkage seat through a fixed pulley, the fixed pulley is in transmission connection with a limiting base, and the limiting base is fixedly connected with the first limiting plate; the bottom surface of the second linkage seat is provided with a linkage rack, the side surface of the linkage rack is provided with a limiting rail, the limiting rail is in sliding connection with the limiting base, the limiting rail is provided with a reset plate, the reset plate is provided with a reset rod, one end of the reset rod is connected with the limiting base, and the other end of the reset rod is connected with a third limiting plate; the reset rod is sleeved with a reset spring, one end of the reset spring is connected with the reset plate, and the other end of the reset spring is connected with the limit base; the engagement rack is in meshed connection with the engagement gear, an engagement rotating shaft is arranged on the engagement gear, the engagement rotating shaft is connected with a first bevel gear through an engagement base arranged on the motion limiting base, the first bevel gear is in meshed connection with a second bevel gear, a secondary motion rotating shaft is arranged on the second bevel gear, and the secondary motion rotating shaft is in transmission connection with the engagement base; the secondary moving rotating shaft is provided with a driving wheel, the driving wheel is connected with a driven wheel through a conveying belt, the driven wheel is provided with a driving rotating shaft, one end of the driving rotating shaft is in transmission connection with a driving base, the side surface of the driving base is fixedly connected with the side surface of a first limiting plate, the other end of the driving base is connected with a combined control gear, the combined control gear is in meshed connection with two control racks, a control track is arranged on the control racks, the control track is in sliding connection with a linkage sleeve plate, the linkage sleeve plate is connected with a movable sleeve box through a linkage rod, the movable sleeve box is in sliding connection with the control racks, and the movable sleeve box is fixedly connected with the first limiting plate; the control rack is sleeved with an extrusion spring, one end of the extrusion spring is connected with the movable sleeve box, the other end of the extrusion spring is connected with a double-acting rod, and the double-acting rod is connected with a reset groove arranged on the guide sliding block in a matched mode.

Preferably, the stop piece comprises a through groove arranged on the guide sliding block, a control groove is arranged on the through groove, and the control groove is in sliding connection with the control plate; the side surface of the control plate is connected with the side surface of the control groove through a stop spring; the control panel is fixedly provided with a stop rod which is matched and connected with the special-shaped rod, the stop rod is matched and connected with the matched rod, the side surface of the matched rod is provided with a limiting plate, the limiting plate is in sliding connection with a linkage groove arranged on the guide sliding block, and the linkage groove is connected with the limiting plate through a pressing spring; the locating block is arranged on the matching rod and is matched and connected with the rectangular groove arranged on the guide sliding rail.

A method for using the river dredging device for water conservancy construction, comprising the following steps:

step one, starting a circulation motor, wherein the output end of the circulation motor drives a cleaning thread shaft on a cleaning bevel gear to rotate, so that a thread rotating block is limited to move in a guide rod, a linkage gear rotates through a meshed fixed rack, and a crank rocker on a linkage rotating shaft drives a guide sliding block to limit and reciprocate on a guide sliding rail;

when the guide sliding block moves forwards, the stable rack is limited to move on the directional rod through the mounting block, the driving striking rod rotates downwards by taking the driven rotating shaft as the circle center, the semicircle of the end point of the driven bearing rod works on the filter plate, the displacement spring is in a compressed state, when the end point of the driven bearing rod is not contacted with the filter plate any more, the displacement spring is reset, and the formed elastic force works on the filter plate, so that the filter plate vibrates;

When the driven bearing rod moves in the opposite direction of the driving striking rod, the side moving rotating rod drives the sector gear to rotate, the matching rod moves in the direction of the guide sliding rail, the pressing spring is in a compressed state, the positioning block is in contact with the rectangular groove, and the guide sliding block is limited;

when the driving striking rod moves downwards, the two control racks are enabled to move in a limiting mode on the linkage sleeve plate and the moving sleeve box, the two extrusion springs are enabled to be in a compressed state at the same time, the double acting rod on the control racks is enabled to be in contact with the reset groove on the guide sliding block, and the moving direction of the guide sliding block is corrected;

fifthly, the movable contact piece on the attaching block is contacted with the static contact piece in the attaching box, the circulating motor is controlled to rotate reversely, the threaded rotating block moves back, and the scraping rod and the engagement driving mechanism continue to scrape the filter plate.

Compared with the prior art, the invention has the beneficial effects that:

(1) When the guide sliding block moves forwards, the stabilizing rack is limited and moved on the guide rod through the mounting block, the guide spring is in an extension state, the meshed stabilizing gear rotates, the driven rotating shaft rotates, the driving striking rod rotates downwards through the driven rotating shaft as the circle center, the driven bearing rod contacted with the driving striking rod rotates in the direction opposite to the direction of the driving striking rod, the extension spring is in an extension state, a semicircle at the end point of the driven bearing rod works on the filter plate, a displacement rod on the filter plate moves in the displacement groove, one displacement spring is in a compression state, the other displacement spring is in an extension state, when the end point of the driven bearing rod is not contacted with the filter plate any more, the displacement spring is reset, one elastic force formed acts on the filter plate, the filter plate is vibrated, and then the sludge adhered on the filter plate falls off; when the guide sliding block resets, the stabilizing gear resets and rotates, a series of springs are reset, the driving striking rod resets, the driven bearing rod resets to work the filter plate, the filter plate repeats the above movement, and the reciprocating movement is matched with the scraping rod, so that the dredging efficiency is improved;

(2) The pressing transverse plate is in a limiting movement on the limiting rod, the limiting springs are in a compressed state, the two braking blocks are in limiting relative movement in the braking grooves through the cooperation of the double-acting block, the hinging rod and the braking blocks, the braking springs are in a stretching state, then the attaching block slowly enters the attaching box, when a movable contact piece on the attaching block contacts a static contact piece in the attaching box, the circulating motor is controlled to rotate reversely, the threaded rotating block moves back, the relay transverse plate does not contact the cleaning base any more, the braking springs and the limiting springs are reset, and the scraping rod and the attaching impact mechanism continue scraping operation on the filter plate, so that the dredging efficiency is improved;

(3) When the driving striking rod moves downwards, the pull rope pulls the movable rack on the second linkage seat to move in a limiting mode on the limiting base, so that the reset spring is in a stretching state, then the meshed movable gear rotates, the linkage control gear on the driving rotating shaft rotates, the linkage control gear meshes with the two control racks, the two control racks move in a limiting mode on the linkage sleeve plate and the movable sleeve box, the two extrusion springs are in a compressed state at the same time, the reset rod on the control rack is in contact with the reset groove on the guide sliding block, the moving direction of the guide sliding block is corrected, and the possibility that the guide sliding block is separated from a track during moving is reduced;

(4) Starting a circulation motor, wherein the output end of the circulation motor drives a cleaning thread shaft on a cleaning bevel gear to rotate, so that a thread rotating block is limited to move in a guide rod, and a guide spring is in a compressed state, so that a scraping rod scrapes and cleans sludge accumulated on a filter plate, and the dredging efficiency is improved;

(5) When the guide sliding block moves forwards, the leveling rack is made to move towards the direction close to the water pump, one connecting spring is in a compressed state, the other connecting spring is in a stretched state, the special-shaped rod near the connecting spring in the compressed state moves towards the guide sliding block, when the special-shaped rod contacts the stop rod, the control plate on the stop rod moves in the control groove, the stop spring is in a compressed state, the stop rod moves towards the matching rod and then contacts the matching rod, the matching rod moves towards the direction of the guide sliding rail, the pressing spring is in a compressed state, the positioning block contacts the rectangular groove, and the guide sliding block is limited; when the guide slide block is reset and moved, the connecting spring which is in the tensile state is slowly reset and is in the compression state, and then contacts with the stop rod at the other side, so that the stop piece operation is repeated, the guide slide block is limited, and the stability of the guide slide block during movement is improved;

(6) The sludge pump is started, the sludge motor is driven by the output end of the sludge motor to rotate, the sludge is driven upwards by the spiral blade, the sludge carried by the spiral blade is placed into a sludge area through the sludge discharge pipe by the sludge pump, the sludge is retained in the sludge area through the filter plate, and the water in the sludge is discharged through the water pump.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.

In the drawings:

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic diagram of a structure of a positioning plate according to the present invention;

FIG. 3 is a schematic view of the structure of the driving threaded shaft according to the present invention;

FIG. 4 is a schematic view of a helical blade structure according to the present invention;

FIG. 5 is a schematic diagram of a pressure control compound motion assembly according to the present invention;

FIG. 6 is a schematic view of a filter plate structure according to the present invention;

FIG. 7 is a schematic view of the engagement actuation mechanism of the present invention;

FIG. 8 is a schematic view of a stopper structure according to the present invention;

FIG. 9 is a schematic view of a compound rail stop mechanism according to the present invention;

FIG. 10 is a schematic diagram of a flattening unit according to the present invention;

FIG. 11 is a schematic view of a partial enlarged structure at A in the present invention;

FIG. 12 is a schematic view of the driven carrier bar structure of the present invention;

in the figure: 1. a dredging box; 2. a support plate; 3. a sludge pump; 4. a sludge discharge pipe; 5. a cleaning plate; 6. a dredging motor; 7. a dredging rotating rod; 8. a mud inlet pipe; 9. a first bearing; 10. a helical blade; 11. a clamping plate; 12. a water pump; 13. a force-connecting plate; 14. a cleaning block; 15. a circulating motor; 16. a bevel gear which circulates; 17. cleaning a bevel gear; 18. clearing the threaded shaft; 19. the base is cleared; 20. a threaded rotating block; 21. a force control box; 22. a guide block; 23. a guide rod; 24. a guide spring; 25. a scraper bar; 26. a filter plate; 27. a linkage side plate; 28. a linkage rotating shaft; 29. a linkage gear; 30. a fixed rack; 31. a linkage stay bar; 32. a crank rocker; 33. a guide slide block; 34. a force control rod; 35. a relay cross plate; 36. pressing the transverse plate; 37. a limiting block; 38. a limit groove; 39. a limit rod; 40. a limit spring; 41. a double-acting block; 42. a hinge rod; 43. a brake block; 44. a brake groove; 45. a guide rail; 46. a first limiting plate; 47. a mounting block; 48. a directional rod; 49. a joining base; 50. a directional spring; 51. a stabilizing rack; 52. stabilizing the gear; 53. a connecting rotating shaft; 54. a drive bevel gear; 55. a stabilization base; 56. a driven bevel gear; 57. a driven rotating shaft; 58. clicking the base; 59. actively striking a rod; 60. the first connecting buckle seat; 61. a pull rope; 62. a driven bearing rod; 63. a side-moving rotating rod; 64. a positioning plate; 65. a positioning groove; 66. a displacement rod; 67. a displacement groove; 68. a displacement spring; 69. a brake lever; 70. a brake spring; 71. a bonding block; 72. sticking a connecting box; 73. a movable contact; 74. a stationary contact; 75. making a flat base; 76. a first base; 77. a tension spring; 78. a second base; 79. a sector gear; 80. manufacturing a flat rack; 81. an extension rod; 82. a second limiting plate; 83. extending the sleeve block; 84. a connecting rod; 85. a special-shaped rod; 86. a connecting spring; 87. a second coupling seat; 88. a fixed pulley; 89. a motion limiting base; 90. a rack is engaged; 91. rail limiting; 92. a reset plate; 93. a reset lever; 94. a third limiting plate; 95. a return spring; 96. a connecting gear; 97. a connecting shaft; 98. a linkage base; 99. a first bevel gear; 100. a second bevel gear; 101. a secondary moving shaft; 102. a driving wheel; 103. a conveyor belt; 104. driven wheel; 105. a driving rotating shaft; 106. an active base; 107. a joint control gear; 108. controlling a rack; 109. a control track; 110. a linkage sleeve plate; 111. a linkage rod; 112. moving the sleeve; 113. extruding a spring; 114. a double-acting rod; 115. a reset groove; 116. a through groove; 117. a control groove; 118. a control board; 119. a stop spring; 120. a stop lever; 121. a mating lever; 122. a limiting plate; 123. a linkage groove; 124. a pressing spring; 125. a positioning block; 126. rectangular grooves.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The embodiment is given by figures 1 to 12, the river dredging device for water conservancy construction comprises a dredging box 1, wherein a supporting plate 2 is arranged on the dredging box 1, a sludge pump 3 is fixedly arranged on the top surface of the supporting plate 2, one end interface of the sludge pump 3 is connected with a dredging mechanism, and the other end is connected with the outer side wall of a sludge discharge pipe 4;

the dredging mechanism comprises a dredging plate 5 arranged on the top surface of the dredging box 1, and a dredging motor 6 is fixedly arranged on the bottom surface of the dredging plate 5;

the dredging rotary rod 7, the dredging rotary rod 7 is connected with the output end of the dredging motor 6, one end of the dredging rotary rod 7 far away from the dredging plate 5 penetrates through a first bearing 9 on the mud inlet pipe 8, the spiral blade 10 is arranged on the dredging rotary rod 7, clamping plates 11 are symmetrically arranged on the mud inlet pipe 8, and the clamping plates 11 are fixedly connected with the dredging box 1;

The water pump 12 is arranged at one side far away from the mud inlet pipe 8, a water pipe of the water pump 12 passes through the box body of the dredging box 1 and is exposed in the dredging box 1, and the bottom surface of the water pump 12 is connected with the connecting plate 13 arranged on the side surface of the dredging box 1;

the cleaning block 14, the cleaning block 14 is installed on the dredging box 1, the cleaning block 14 is fixedly provided with a circulating motor 15, and the output end of the circulating motor 15 is connected with the sweeping linkage unit, as shown in fig. 4;

the region that silt discharge pipe 4 is located is the silt district, operating personnel will advance the mud pipe and put into the region that needs the clearance silt, through start-up silt pump 3 and desilting motor 6, the output of desilting motor 6 drives helical blade 10 and rotates, helical blade 10 drives the silt upwards, the silt that takes helical blade 10 through silt pump 3 places the silt that passes through silt discharge pipe 4 in the silt district, be detained the silt in the silt district through filter 26, discharge the moisture in the silt through start-up water pump 12, adopt the filter 26 in the desilting mechanism of dredging to come preliminarily, this is the first desilting of river course desilting device for the water conservancy construction, adopt filter 26 to carry out preliminary filtration, low cost, high efficiency, the purifying effect is good.

In one embodiment, the filter plate 26 is a structure with a plurality of filtering holes on the panel, so as to substantially filter the moisture in the sludge.

Furthermore, the filtering holes are round, so that most of water in the sludge can be intercepted, and a good filtering effect is achieved.

Further, the filter holes are bar-shaped holes and are arranged at intervals with the circular filter holes, so that the sludge on the surface is cleaned conveniently at a later stage on the basis of ensuring the water removal rate of the sludge.

The sweeping linkage removing unit of the embodiment is provided with a circulating bevel gear 16 arranged at the output end of the circulating motor 15, and the circulating bevel gear 16 is in meshed connection with a cleaning bevel gear 17;

the cleaning screw shaft 18, the cleaning screw shaft 18 is arranged on the cleaning bevel gear 17, the cleaning screw shaft 18 is in transmission connection with the cleaning base 19, and the cleaning base 19 is fixedly connected with the top surface of the dredging box 1; a thread rotating block 20 is arranged on the thread of the thread shaft 18;

the force control box 21, the force control box 21 is installed on the top surface of the threaded rotating block 20, and the force control box 21 is connected with the pressure control compound movement assembly; a guide block 22 is fixedly arranged on the bottom surface of the threaded rotating block 20;

the guide rod 23, the guide rod 23 is movably arranged on the guide block 22, and two ends of the guide rod 23 are fixedly connected with the side surface of the cleaning base 19; the guide rod 23 is sleeved with a guide spring 24, one end of the guide spring 24 is fixedly connected with the side surface of the guide block 22, and the other end of the guide spring is fixedly connected with the side surface of the cleaning base 19;

The scraping rod 25 is arranged on the bottom surface of the guide block 22, and the scraping rod 25 is connected with the side surface of the filter plate 26 in a matching way; a linkage side plate 27 is fixedly arranged on one side of the guide block 22 away from the dredging motor 6;

in one embodiment, the contact surface between the scraping rod 25 and the filter plate 26 is smooth, so that the sludge on the filter plate 26 can be scraped smoothly, and the suction force of the sludge pump 3 is strong enough, so that the sludge in the filtering holes on the filter plate 26 can not be cleaned.

In one embodiment, the contact surface between the scraping rod 25 and the filter plate 26 is saw-toothed, so that the sludge on the filter plate 26 can be scraped smoothly, and the sludge in the filter holes on the filter plate 26 is considered.

The linkage rotating shaft 28, the linkage rotating shaft 28 is arranged on the linkage side plate 27 in a transmission way, one end of the linkage rotating shaft 28 is connected with the side face of the linkage gear 29, the linkage gear 29 is meshed with the fixed rack 30, the bottom face of the fixed rack 30 is symmetrically provided with the linkage supporting rod 31, and the linkage supporting rod 31 is fixedly connected with the side face of the cleaning base 19;

the crank rocker 32, the crank rocker 32 is set up in the other end of the linkage spindle 28; one end of the crank rocker 32 is connected with the linkage rotating shaft 28, and the other end is in transmission connection with the side face of the guide sliding block 33; the guide sliding block 33 is connected with the engagement driving mechanism;

Through starting the circulation motor 15, the output of the circulation motor 15 drives the cleaning screw shaft 18 on the cleaning bevel gear 17 to rotate, so that the screw rotating block 20 is limited to move in the guide rod 23, the guide spring 24 is in a compressed state, further the scraping rod 25 scrapes and cleans the sludge accumulated on the filter plate 26, when the filter plate 26 is prevented from filtering, the sludge can be adhered to the filter plate because of the water extraction of the sludge, and the scraping rod 25 can reciprocate to scrape the sludge on the filter plate 26, so that the dredging efficiency is improved.

The pressure-controlled double acting assembly of the embodiment comprises a force control rod 34 arranged on a force control box 21, wherein one end of the force control rod 34 is fixedly connected with the side surface of a relay transverse plate 35, and the other end of the force control rod passes through the force control box 21 and is connected with a pressure acting transverse plate 36;

the limiting blocks 37, the limiting blocks 37 are symmetrically arranged on the pressing transverse plate 36, and the limiting blocks 37 are arranged in sliding connection with limiting grooves 38 arranged on the force control box 21; limiting rods 39 are symmetrically arranged on the limiting blocks 37, and two ends of each limiting rod 39 penetrate through the limiting blocks 37 and are connected with the side faces of the limiting grooves 38;

the limiting spring 40 is sleeved on the limiting rod 39, one end of the limiting spring 40 is connected with the limiting groove 38, and the other end of the limiting spring 40 is connected with the limiting block 37; the pressing transverse plate 36 is symmetrically provided with a double-acting block 41, and the double-acting block 41 is movably provided with a hinging rod 42;

The brake block 43, the brake block 43 is movably connected to one end of the hinge rod 42 far away from the relay diaphragm 35, the brake block 43 is slidably connected with a brake groove 44 arranged on the force control box 21;

the brake block 43 further comprises a brake rod 69, the brake rod 69 is arranged on the brake block 43, and two ends of the brake rod 69 penetrate through the brake block 43 to be connected with the brake groove 44; a brake spring 70 is sleeved on the brake rod 69, and one end of the brake spring 70 is connected with the side surface of the brake block 43; the other end is connected with the brake groove 44;

the laminating block 71, the laminating block 71 is mounted on the pressing transverse plate 36, and the laminating block 71 is connected with a laminating box 72 arranged in the force control box 21 in a matched manner;

the movable contact piece 73, the movable contact piece 73 is installed on the laminating block 71, and the movable contact piece 73 is in fit connection with the static contact piece 74 arranged in the laminating box 72; the contact of the movable contact piece 73 and the static contact piece 74 is used for controlling the forward and reverse rotation setting of the circulating motor 15;

when the relay diaphragm 35 contacts the cleaning base 19, the pressing diaphragm 36 moves on the limiting rod 39 in a limiting mode, the limiting spring 40 is in a compressed state, the two braking blocks 43 move in a limiting mode in the braking groove 44 in a limiting mode through the cooperation of the compound moving block 41, the hinging rod 42 and the braking blocks 43, the braking spring 70 is in a stretching mode, then the attaching block 71 slowly enters the attaching box 72, when the movable contact 73 on the attaching block 71 contacts the static contact 74 in the attaching box 72, the circulating motor 15 is controlled to rotate reversely, the threaded rotating block 20 moves back, the relay diaphragm 35 does not contact the cleaning base 19 any more, the braking spring 70 and the limiting spring 40 are reset, the scraping rod 25 is reset more smoothly without any blocking sense, and the scraping rod 25 and the attaching driving mechanism continue to scrape the filter plate 26, so that the cleaning efficiency is improved.

The engagement driving mechanism of the embodiment comprises a guide sliding rail 45 which is arranged in a sliding way with the guide sliding block 33, wherein first limiting plates 46 are arranged at two ends of the guide sliding rail 45, and the side surfaces of the first limiting plates 46 are fixedly connected with the side surfaces of the linkage side plates 27;

the mounting blocks 47, the mounting blocks 47 are symmetrically arranged on the guide sliding blocks 33, the mounting blocks 47 are provided with the orientation rods 48, two ends of the orientation rods 48 penetrate through the mounting blocks 47 and are fixedly connected with the side surfaces of the engagement base 49, and the engagement base 49 is fixedly connected with the side surfaces of the first limiting plates 46;

the directional spring 50 is sleeved on the directional rod 48, one end of the directional spring 50 is fixedly connected with the engagement base 49, the other end of the directional spring 50 is fixedly connected with the mounting blocks 47, the two mounting blocks 47 are jointly connected with the stabilizing rack 51, and the stabilizing rack 51 is in meshed connection with the stabilizing gear 52;

a engagement shaft 53, the engagement shaft 53 being mounted on the stabilizing gear 52, the engagement shaft 53 passing through the drive bevel gear 54 in driving connection with the side of the stabilizing base 55; the stable base 55 is fixedly connected with the guide slide rail 45; the driving bevel gear 54 is in meshed connection with the driven bevel gear 56, a driven rotating shaft 57 is arranged on the driven bevel gear 56, and the driven rotating shaft 57 penetrates through the driving base 58 to be fixedly connected with the side face of the driving striking rod 59; the clicking base 58 is fixedly connected with the bottom surface of the engagement base 49;

The first linking seat 60, the first linking seat 60 is installed on the active striking rod 59, and the first linking seat 60 is connected with the return rail limiting mechanism through a pull rope 61; the driving striking rod 59 is matched and connected with the driven bearing rod 62, a side moving rotating rod 63 is arranged on the side surface of the driven bearing rod 62, and the side moving rotating rod 63 is connected with the flattening unit; the end points of the driven bearing rods 62 are connected with the side surfaces of the filter plates 26 in a matched manner;

the position-making plates 64, the position-making plates 64 are symmetrically arranged on the filter plates 26, and the position-making plates 64 are connected with position-making grooves 65 arranged on the dredging box 1; the two sides of the positioning plate 64 are symmetrically provided with displacement rods 66, and the displacement rods 66 are connected with displacement grooves 67 arranged on the positioning grooves 65;

the displacement spring 68, the displacement spring 68 is sleeved on the displacement rod 66, one end of the displacement spring 68 is connected with the position-making plate 64, and the other end is connected with the position-making groove 65;

when the threaded rotating block 20 moves, the linkage gear 29 rotates through the meshed fixed rack 30, so that the crank rocker 32 on the linkage rotating shaft 28 drives the guide sliding block 33 to limit and reciprocate on the guide sliding rail 45; when the guide sliding block 33 moves forwards, the stabilizing rack 51 is limited to move on the orientation rod 48 through the mounting block 47, the orientation spring 50 is in a stretching state, the meshed stabilizing gear 52 is rotated, the driven rotating shaft 57 is rotated, the driven striking rod 59 is rotated downwards by taking the driven rotating shaft 57 as a circle center, the driven bearing rod 62 contacted with the driven striking rod 59 is rotated in the opposite direction to the driven striking rod 59, the stretching spring 77 is in a stretching state, the semicircle of the end point of the driven bearing rod 62 is used for working the filter plate 26, the displacement rod 66 on the filter plate 26 moves in the displacement groove 67, one displacement spring 68 is in a compressed state, the other displacement spring 68 is in a stretching state, when the end point of the driven bearing rod 62 is not contacted with the filter plate 26 any more, the displacement spring 68 is reset, the formed elastic force is used for working the filter plate 26, the filter plate 26 is vibrated, and then the sludge adhered on the filter plate 26 falls; on the basis of the scraping rod 25, an engagement driving mechanism can be additionally arranged to vibrate the filter plate 26, so that the effect of cleaning the sludge by dropping the sludge on the filter plate 26 is better;

Further, when the guide sliding block 33 is reset, the stabilizing gear 52 is reset and rotated, then a series of springs are reset, the driving striking rod 59 is reset, then the driven bearing rod 62 is reset to work the filter plate 26, the filter plate 26 is enabled to repeat the above-mentioned movement, and the reciprocating movement is matched with the scraping rod 25, so that the dredging efficiency is improved.

The flattening unit of the embodiment comprises a flattening base 75 which is arranged on the side moving rotating rod 63 in a transmission way, wherein the flattening base 75 is fixedly connected with the side surface of the engagement base 49;

the first base 76, the first base 76 is installed on the flat base 75, the first base 76 is connected with the second base 78 through the extension spring 77, the second base 78 is connected with the driven bearing rod 62; one end of the side-moving rotating rod 63, which is far away from the flattening base 75, is connected with a sector gear 79;

the flat rack 80 is manufactured, the flat rack 80 is meshed with the sector gear 79, extension rods 81 are arranged at two ends of the flat rack 80, and the extension rods 81 are connected with the second limiting plate 82;

the extension sleeve blocks 83, two extension sleeve blocks 83 are arranged on the extension rod 81, one end of one extension sleeve block 83 is fixedly connected with the striking base 58, the other end of the extension sleeve block is provided with a connecting rod 84, the connecting rod 84 is connected with the other extension sleeve block 83, and the extension sleeve block 83 is movably connected with the extension rod 81;

The special-shaped rod 85, the special-shaped rod 85 is arranged on the extension rod 81, and the special-shaped rod 85 is connected with the stop piece; a connecting spring 86 is sleeved on the extension rod 81, one end of the connecting spring 86 is connected with the extension sleeve block 83, and the other end of the connecting spring 86 is connected with the second limiting plate 82;

the stopper comprises a through groove 116 arranged on the guide sliding block 33, a control groove 117 is arranged on the through groove 116, and the control groove 117 is in sliding connection with a control plate 118; the side surface of the control plate 118 is connected with the side surface of the control groove 117 through a stop spring 119;

the stop rod 120 is arranged on the control board 118, the stop rod 120 is matched and connected with the special-shaped rod 85, and the stop rod 120 is matched and connected with the matching rod 121;

the limiting plate 122 is arranged on the side surface of the matching rod 121, the limiting plate 122 is in sliding connection with a linkage groove 123 arranged on the guide sliding block 33, and the linkage groove 123 is connected with the limiting plate 122 through a pressing spring 124;

the positioning block 125, the positioning block 125 is mounted on the matching rod 121, and the positioning block 125 is matched and connected with a rectangular groove 126 arranged on the guide sliding rail 45;

when the driven bearing rod 62 moves in the opposite direction to the driving striking rod 59, the side moving rotating rod 63 drives the sector gear 79 to rotate, so that the meshed leveling rack 80 moves, when the guide sliding block 33 moves forwards, the leveling rack 80 moves in the direction approaching the water pump 12, one connecting spring 86 is in a compressed state, the other connecting spring 86 is in a stretched state, the special-shaped rod 85 near the connecting spring 86 in the compressed state moves in the direction of the guide sliding block 33, when the special-shaped rod 85 contacts the stop rod 120, the control plate 118 on the stop rod 120 moves in the control groove 117, the stop spring 119 is in a compressed state, the stop rod 120 moves in the direction of the matched rod 121 and contacts the matched rod 121, the matched rod 121 moves in the direction of the guide sliding rail 45, the pressing spring 124 is in a compressed state, and the positioning block 125 contacts the rectangular groove 126, so that the guide sliding block 33 is limited; when the guide sliding block 33 is reset and moved, the connecting spring 86 which is originally in a stretched state is slowly reset and is in a compressed state, and then contacts the stop rod 120 at the other side, so that the stop piece operation is repeated, the guide sliding block 33 is limited, the stability of the guide sliding block 33 during movement is improved, the stability of vibration of the filter plate 26 is further improved, the faults are few, and the dredging effect is better.

The double-track limiting mechanism of the embodiment comprises a second link seat 87 connected with a pull rope 61, wherein the pull rope 61 is connected with the second link seat 87 through a fixed pulley 88, the fixed pulley 88 is in transmission connection with a limiting base 89, and the limiting base 89 is fixedly connected with the first limiting plate 46;

the engagement rack 90, the engagement rack 90 is installed on the bottom surface of the second linkage seat 87, a limited rail 91 is installed on the side surface of the engagement rack 90, the limited rail 91 is slidably connected with the limiting base 89, a reset plate 92 is installed on the limited rail 91, a reset rod 93 is installed on the reset plate 92, one end of the reset rod 93 is connected with the limiting base 89, and the other end of the reset rod 93 is connected with a third limiting plate 94;

the reset spring 95 is sleeved on the reset rod 93, one end of the reset spring 95 is connected with the reset plate 92, and the other end is connected with the limiting base 89; the engagement rack 90 is in meshed connection with an engagement gear 96, an engagement rotating shaft 97 is mounted on the engagement gear 96, and the engagement rotating shaft 97 passes through an engagement base 98 arranged on the limiting base 89 to be connected with a first bevel gear 99;

the second bevel gear 100, the second bevel gear 100 engages the first bevel gear 99, the second bevel gear 100 is fitted with the secondary moving spindle 101, the secondary moving spindle 101 is connected with the armature base 98 in a driving way; a driving wheel 102 is arranged on the secondary rotating shaft 101, and the driving wheel 102 is connected with a driven wheel 104 through a conveying belt 103;

The driving rotating shaft 105 is arranged on the driven wheel 104, one end of the driving rotating shaft 105 is in transmission connection with the driving base 106, the side surface of the driving base 106 is fixedly connected with the side surface of the first limiting plate 46, the other end of the driving base 106 is connected with the combined control gear 107, and the combined control gear 107 is in meshed connection with two control racks 108;

the control rail 109, the control rail 109 is installed on the control rack 108, the control rail 109 is in sliding connection with the linkage sleeve plate 110, the linkage sleeve plate 110 is connected with the movable sleeve box 112 through the linkage rod 111, the movable sleeve box 112 is in sliding connection with the control rack 108, and the movable sleeve box 112 is fixedly connected with the first limiting plate 46;

the extrusion spring 113, the extrusion spring 113 is sleeved on the control rack 108, one end of the extrusion spring 113 is connected with the movable sleeve 112, the other end is connected with the double acting rod 114, and the double acting rod 114 is matched and connected with a reset groove 115 arranged on the guide sliding block 33;

when the active striking rod 59 moves downwards, the first linking seat 60 is matched with the pull rope 61, so that the pull rope 61 pulls the linking rack 90 on the second linking seat 87 to move in a limiting mode on the limiting base 89, the return spring 95 is in a stretching state, then the meshed linking gear 96 rotates, the linking control gear 107 on the active rotating shaft 105 rotates, the linking control gear 107 meshes with the two control racks 108, the two control racks 108 move in a limiting mode on the linking sleeve plate 110 and the moving sleeve box 112, the two extrusion springs 113 are in a compression state at the same time, the return rod 114 on the control racks 108 is in contact with the reset groove 115 on the guide sliding block 33, the moving direction of the guide sliding block 33 is corrected, the possibility that the guide sliding block 33 is separated from a track during moving is reduced, the stability of vibration of the filter plate 26 is further improved, the fault is small, and the dredging effect is better.

step one, starting a circulation motor 15, wherein the output end of the circulation motor 15 drives a cleaning thread shaft 18 on a cleaning bevel gear 17 to rotate, so that a thread rotating block 20 is limited to move in a guide rod 23, a linkage gear 29 rotates through a meshed fixed rack 30, and a crank rocker 32 on a linkage rotating shaft 28 drives a guide sliding block 33 to limit to reciprocate on a guide sliding rail 45;

secondly, when the guide sliding block 33 moves forwards, the stabilizing rack 51 is limited to move on the orientation rod 48 through the mounting block 47, the driving striking rod 59 rotates downwards by taking the driven rotating shaft 57 as the circle center, the semicircle of the end point of the driven bearing rod 62 works on the filter plate 26, the displacement spring 68 is in a compressed state, when the end point of the driven bearing rod 62 is no longer contacted with the filter plate 26, the displacement spring 68 is reset, and the formed elastic force works on the filter plate 26, so that the filter plate 26 vibrates;

step three, when the driven bearing rod 62 moves towards the opposite direction of the driving striking rod 59, the side moving rotating rod 63 drives the sector gear 79 to rotate, so that the matching rod 121 moves towards the direction of the guiding sliding rail 45, the pressing spring 124 is in a compressed state, and the positioning block 125 contacts the rectangular groove 126 to limit the guiding sliding block 33;

Step four, when the active striking rod 59 moves downwards, the two control racks 108 are limited to move on the linkage sleeve plate 110 and the moving sleeve box 112, so that the two extrusion springs 113 are in a compressed state at the same time, the double acting rod 114 on the control racks 108 is in contact with the reset groove 115 on the guide sliding block 33, and the moving direction of the guide sliding block 33 is corrected;

step five, the movable contact piece 73 on the attaching block 71 contacts the static contact piece 74 in the attaching box 72, and the circulating motor 15 is controlled to rotate reversely, so that the threaded rotating block 20 moves back, and the scraping rod 25 and the engagement driving mechanism continue to scrape the filter plate 26.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. River channel dredging device for water conservancy construction, including dredging case (1), its characterized in that: a supporting plate (2) is arranged on the dredging box (1), a sludge pump (3) is fixedly arranged on the top surface of the supporting plate (2), one end interface of the sludge pump (3) is connected with a dredging mechanism, and the other end is connected with the outer side wall of a sludge discharge pipe (4);

the dredging mechanism comprises a dredging plate (5) arranged on the top surface of the dredging box (1), and a dredging motor (6) is fixedly arranged on the bottom surface of the dredging plate (5);

the dredging device comprises a dredging rotating rod (7), wherein the dredging rotating rod (7) is connected with the output end of a dredging motor (6), one end, far away from a dredging plate (5), of the dredging rotating rod (7) penetrates through a first bearing (9) on a mud inlet pipe (8), spiral blades (10) are arranged on the dredging rotating rod (7), clamping plates (11) are symmetrically arranged on the mud inlet pipe (8), and the clamping plates (11) are fixedly connected with a dredging box (1);

The water pump (12), the water pump (12) is set up in one side far away from mud pipe (8), the water pipe of the water pump (12) passes the dredging box (1);

the cleaning block (14), cleaning block (14) are installed on dredging case (1), and fixed mounting has circulation motor (15) on cleaning block (14), and the output of circulation motor (15) is connected with sweeping the linkage and removes the unit and sets up.

2. The river dredging device for water conservancy construction according to claim 1, wherein: the sweeping linkage removing unit is provided with a circulating bevel gear (16) arranged at the output end of the circulating motor (15), and the circulating bevel gear (16) is in meshed connection with the cleaning bevel gear (17);

the cleaning screw shaft (18), the cleaning screw shaft (18) is arranged on the cleaning bevel gear (17), the cleaning screw shaft (18) is connected with the cleaning base (19) in a transmission way, and the cleaning base (19) is fixedly connected with the top surface of the dredging box (1); a thread rotating block (20) is arranged on the thread of the cleaning thread shaft (18);

the force control box (21), the force control box (21) is installed on the top surface of the screw thread rotating block (20), and the force control box (21) is connected with the pressure control compound motion assembly; a guide block (22) is fixedly arranged on the bottom surface of the threaded rotating block (20);

the guide rod (23), the guide rod (23) is movably arranged on the guide block (22), two ends of the guide rod (23) are fixedly connected with the side surface of the cleaning base (19); the guide rod (23) is sleeved with a guide spring (24), one end of the guide spring (24) is fixedly connected with the side face of the guide block (22), and the other end of the guide spring is fixedly connected with the side face of the cleaning base (19).

3. The river dredging device for water conservancy construction according to claim 2, wherein: the guide block (22) further comprises a scraping rod (25), the scraping rod (25) is arranged on the bottom surface of the guide block (22), and the scraping rod (25) is connected with the side surface of the filter plate (26) in a matched mode; a linkage side plate (27) is fixedly arranged on one side, away from the dredging motor (6), of the guide block (22);

the linkage rotating shaft (28), the linkage rotating shaft (28) is arranged on the linkage side plate (27) in a transmission way, one end of the linkage rotating shaft (28) is connected with the side face of the linkage gear (29), the linkage gear (29) is connected with the fixed rack (30) in a meshed way, the bottom face of the fixed rack (30) is symmetrically provided with the linkage supporting rod (31), and the linkage supporting rod (31) is fixedly connected with the side face of the cleaning base (19);

the crank rocker (32), the crank rocker (32) is set up in the other end of the linkage spindle (28); one end of the crank rocker (32) is connected with the linkage rotating shaft (28), and the other end of the crank rocker is in transmission connection with the side face of the guide sliding block (33); the guide slide block (33) is connected with the engagement striking mechanism.

4. The river dredging device for water conservancy construction according to claim 2, wherein: the pressure control double acting assembly comprises a force control rod (34) arranged on a force control box (21), one end of the force control rod (34) is fixedly connected with the side surface of a relay transverse plate (35), and the other end of the force control rod passes through the force control box (21) and is connected with a pressure movement transverse plate (36);

The limiting blocks (37) are symmetrically arranged on the pressing transverse plate (36), and the limiting blocks (37) are slidably connected with limiting grooves (38) arranged on the force control box (21); limiting rods (39) are symmetrically arranged on the limiting blocks (37), and two ends of each limiting rod (39) penetrate through the limiting blocks (37) and are connected with the side surfaces of the limiting grooves (38);

the limiting spring (40) is sleeved on the limiting rod (39), one end of the limiting spring (40) is connected with the limiting groove (38), and the other end of the limiting spring is connected with the limiting block (37); the pressing transverse plate (36) is symmetrically provided with a double-acting block (41), and the double-acting block (41) is movably provided with a hinging rod (42);

the brake block (43), the one end that articulated rod (42) kept away from relay diaphragm (35) is connected in brake block (43) swing joint, and brake block (43) and accuse power box (21) are last to be equipped with braking groove (44) sliding connection.

5. A river dredging apparatus for water conservancy construction as claimed in claim 3, wherein: the engagement driving mechanism comprises a guide sliding rail (45) which is arranged in a sliding way with the guide sliding block (33), first limiting plates (46) are arranged at two ends of the guide sliding rail (45), and the side surfaces of the first limiting plates (46) are fixedly connected with the side surfaces of the linkage side plates (27);

the mounting blocks (47) are symmetrically arranged on the guide sliding blocks (33), the mounting blocks (47) are provided with the directional rods (48), two ends of each directional rod (48) penetrate through the mounting blocks (47) and are fixedly connected with the side faces of the connecting base (49), and the connecting base (49) is fixedly connected with the side faces of the first limiting plates (46);

The directional spring (50) is sleeved on the directional rod (48), one end of the directional spring (50) is fixedly connected with the engagement base (49), and the other end of the directional spring is fixedly connected with the mounting block (47); the two mounting blocks (47) are connected with a stabilizing rack (51) together, and the stabilizing rack (51) is meshed with a stabilizing gear (52);

a connecting rotating shaft (53), wherein the connecting rotating shaft (53) is arranged on the stabilizing gear (52), and the connecting rotating shaft (53) penetrates through the driving bevel gear (54) to be in transmission connection with the side surface of the stabilizing base (55); the stable base (55) is fixedly connected with the guide sliding rail (45); the driving bevel gear (54) is connected with the driven bevel gear (56) in a meshed mode, a driven rotating shaft (57) is arranged on the driven bevel gear (56), and the driven rotating shaft (57) penetrates through the driving base (58) to be fixedly connected with the side face of the driving striking rod (59); the striking base (58) is fixedly connected with the bottom surface of the engagement base (49);

the first connecting and buckling seat (60), the first connecting and buckling seat (60) is arranged on the active striking rod (59), and the first connecting and buckling seat (60) is connected with the return rail limiting mechanism through a pull rope (61); the driving striking rod (59) is connected with the driven bearing rod (62) in a matching way, a side moving rotating rod (63) is arranged on the side surface of the driven bearing rod (62), and the side moving rotating rod (63) is connected with the flattening unit; the end points of the driven bearing rods (62) are connected with the side surfaces of the filter plates (26) in a matched mode;

The position-making plates (64) are symmetrically arranged on the filter plates (26), and the position-making plates (64) are connected with position-making grooves (65) arranged on the dredging box (1); the two sides of the positioning plate (64) are symmetrically provided with displacement rods (66), and the displacement rods (66) are connected with displacement grooves (67) arranged on the positioning grooves (65);

the displacement spring (68) is sleeved on the displacement rod (66), one end of the displacement spring (68) is connected with the positioning plate (64), and the other end of the displacement spring is connected with the positioning groove (65).

6. The river dredging device for water conservancy construction according to claim 4, wherein: the brake block (43) further comprises a brake rod (69), the brake rod (69) is arranged on the brake block (43), and two ends of the brake rod (69) penetrate through the brake block (43) to be connected with the brake groove (44); a brake spring (70) is sleeved on the brake rod (69), and one end of the brake spring (70) is connected with the side surface of the brake block (43); the other end is connected with a brake groove (44);

the laminating block (71), the laminating block (71) is installed on the pressing transverse plate (36), the laminating block (71) is connected with a laminating box (72) arranged in the force control box (21) in a matched mode;

the movable contact piece (73), the movable contact piece (73) is installed on the laminating block (71), the movable contact piece (73) is connected with a static contact piece (74) arranged in the laminating box (72) in a matched mode; the contact of the movable contact piece (73) and the static contact piece (74) is used for controlling the forward and reverse rotation setting of the circulating motor (15).

7. The river dredging device for water conservancy construction according to claim 5, wherein: the flattening unit comprises a flattening base (75) which is arranged on the side moving rotating rod (63) in a transmission way, and the flattening base (75) is fixedly connected with the side surface of the engagement base (49);

the first base (76), the first base (76) is installed on the flat base (75), the first base (76) is connected with the second base (78) through the extension spring (77), and the second base (78) is connected with the driven bearing rod (62); one end of the side moving rotating rod (63) far away from the flattening base (75) is connected with a sector gear (79),

the flat rack (80) is meshed with the sector gear (79), extension rods (81) are arranged at two ends of the flat rack (80), and the extension rods (81) are connected with the second limiting plate (82);

the two extension sleeve blocks (83) are arranged on the extension rod (81), one end of one extension sleeve block (83) is fixedly connected with the striking base (58), the other end of the extension sleeve block is provided with a connecting rod (84), the connecting rod (84) is connected with the other extension sleeve block (83), and the extension sleeve block (83) is movably connected with the extension rod (81);

the special-shaped rod (85), the special-shaped rod (85) is arranged on the extension rod (81), and the special-shaped rod (85) is connected with the stop piece; the extension rod (81) is sleeved with a connecting spring (86), one end of the connecting spring (86) is connected with the extension sleeve block (83), and the other end of the connecting spring is connected with the second limiting plate (82).

8. A method of using the river dredging apparatus for water conservancy construction as claimed in any one of claims 1 to 7, comprising the steps of:

step one, starting a circulation motor (15), wherein the output end of the circulation motor (15) drives a cleaning thread shaft (18) on a cleaning bevel gear (17) to rotate, so that a thread rotating block (20) moves in a limiting manner in a guide rod (23), a linkage gear (29) rotates through a meshed fixed rack (30), and a crank rocker (32) on a linkage rotating shaft (28) drives a guide sliding block (33) to move in a limiting and reciprocating manner on a guide sliding rail (45);

step two, when the guide sliding block (33) moves forwards, the stabilizing rack (51) is enabled to move in a limiting mode on the directional rod (48) through the mounting block (47), the driving striking rod (59) rotates downwards by taking the driven rotating shaft (57) as a circle center, the semicircular position of the end point of the driven bearing rod (62) is used for working the filter plate (26), the displacement spring (68) is in a compressed state, when the end point of the driven bearing rod (62) is not contacted with the filter plate (26) any more, the displacement spring (68) is enabled to reset, and the formed elastic force is used for working the filter plate (26), so that the filter plate (26) vibrates;

when the driven bearing rod (62) moves in the opposite direction of the driving striking rod (59), the side moving rotating rod (63) drives the sector gear (79) to rotate, the matching rod (121) moves in the direction of the guide sliding rail (45), the pressing spring (124) is in a compressed state, the positioning block (125) is in contact with the rectangular groove (126), and the guide sliding block (33) is limited;

Step four, when the active striking rod (59) moves downwards, the two control racks (108) are enabled to move in a limiting mode on the linkage sleeve plate (110) and the moving sleeve box (112), the two extrusion springs (113) are enabled to be in a compressed state at the same time, the double acting rod (114) on the control racks (108) is enabled to be in contact with the reset groove (115) on the guide sliding block (33), and the moving direction of the guide sliding block (33) is corrected;

fifthly, a movable contact piece (73) on the attaching block (71) is contacted with a static contact piece (74) in the attaching box (72), the circulating motor (15) is controlled to rotate reversely, the threaded rotating block (20) moves back, and the scraping rod (25) and the engagement driving mechanism continue to scrape the filter plate (26).