Hydraulic engineering desilting equipment

Abstract

The invention relates to the technical field of dredging equipment, and discloses hydraulic engineering dredging equipment which comprises a silt pumping barrel, a second inner barrel is arranged on one side in the silt pumping barrel, a first inner barrel is arranged on the inner side of the silt pumping barrel, and the first inner barrel and the second inner barrel form an isolation barrel. And one side in the silt pumping barrel is divided into an inner cavity and an outer cavity by the isolation barrel. Suction flow of sludge mixed liquid in the outer cavity and the inner cavity is distributed through the flow dividing pipe and the main pipe, the stirring rod drives the sludge mixed liquid to rotate and is matched with the elastic conical filter screen to guide residual sludge blocks, and the inclination angle of the elastic conical filter screen is adjusted according to the quantity of the residual sludge blocks, so that the sludge blocks are more uniformly sucked. The flow distributed by the outer cavity is increased in cooperation with the increase of the opening degree of the proportional valve, the efficiency that the rotating rod is matched with hard impurities in sludge for grinding is improved, meanwhile, the amount of guided sludge blocks is increased in cooperation with shaking of the filter screen, the filter screen is prevented from being blocked, and the overall dredging efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of dredging equipment, and in particular to dredging equipment for water conservancy projects. Background Art

[0002] Water conservancy projects are a key component of water resource management and utilization. During the continuous operation of water conservancy projects, silt removal equipment is needed to clear silt in key water bodies such as rivers and reservoirs. Existing silt removal includes a silt extraction head, which is arranged on the lifting mechanism or underwater walking mechanism of the silt extraction ship. A crushing mechanism is usually arranged on the inner side of the silt extraction head. The crushing mechanism usually includes a motor and a crushing roller. The crushing roller is driven by the motor to rotate to crush the silt entering the silt extraction head. A filter screen is arranged at the connection between the silt extraction pipe and the silt extraction head to prevent hard debris from entering the silt extraction pipe. By moving the position of the silt extraction head, the silt extraction pump sucks out the silt from the silt extraction head through the silt extraction pipe, thereby completing the silt removal operation.

[0003] However, during the use of traditional dredging equipment, it is difficult for the crushing roller to completely crush the silt entering the silt extraction head into a size that can pass through the filter. There are some large pieces of silt, which are easily retained on the mesh surface of the filter and clog the filter holes, thereby reducing the silt extraction flow rate and affecting the efficiency of the silt extraction operation. Summary of the invention

[0004] The present application proposes a dredging device for water conservancy projects, which has the advantages of reducing the possibility of large pieces of silt clogging the filter screen and improving the silt crushing efficiency, and is used to solve the problem that large pieces of silt are easily retained on the filter screen and clog the filter holes.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a desilting device for a water conservancy project, comprising a silt extraction cylinder, a No. 2 inner cylinder is arranged on one side of the silt extraction cylinder, a No. 1 inner cylinder is arranged on the inner side of the silt extraction cylinder, the No. 1 inner cylinder and the No. 2 inner cylinder form an isolation cylinder, the isolation cylinder divides one side of the silt extraction cylinder into an inner cavity and an outer cavity, a fixed box is arranged on the inner side of the silt extraction cylinder, a connecting shaft is rotatably connected to one side of the fixed box, a stirring rod for driving the silt block to rotate is fixedly connected to the shaft body of the connecting shaft, a rotating cylinder is movably sleeved on the outer side of the No. 1 inner cylinder, a filter for filtering the silt mixed liquid entering the inner cavity and diverting the silt block is fixedly connected to one side of the No. 1 inner cylinder;

[0006] An adjusting mechanism is provided in the silt extraction cylinder, a rotating rod is fixedly provided on the outside of the rotating cylinder, a filter ring for filtering materials in the outer cavity is fixedly provided on one side of the silt extraction cylinder, the adjusting mechanism can adjust the angle of the filter according to the amount of sludge blocks in the outer cavity, adjust the diversion angle of the filter to the sludge blocks, and adjust the distribution flow of the sludge mixed liquid in the inner cavity and the outer cavity, the adjusting mechanism can adjust the rotation speed of the rotating cylinder according to the amount of sludge blocks in the outer cavity, when the amount of sludge blocks entering the outer cavity increases, the adjusting mechanism can increase the flow of the sludge mixed liquid distributed to the outer cavity, and at the same time cooperate with adjusting the inclination angle of the filter to increase in the direction of guiding the sludge blocks to the outer cavity, the adjusting mechanism can reduce the rotation speed of the rotating cylinder when the amount of sludge blocks entering the outer cavity decreases. The beneficial effects of the present invention are as follows:

[0007] The present application provides a dredging equipment for a water conservancy project. The first inner cylinder cooperates with the second inner cylinder to divide the area after the inner silt blocks are crushed into an outer cavity and an inner cavity. The flow rate of the silt mixture allocated to the inner and outer cavities is adjusted by an adjusting mechanism, and the silt blocks that are not completely crushed are guided to the outer cavity through the diversion of the filter and the centrifugal action of the stirring rod belt, while the silt mixture with small fineness is sucked through the filter, and the silt blocks guided to the outer cavity are sucked out through the filter ring after further crushing by the rotating rod, and the remaining silt blocks are separately accumulated and crushed while reducing the possibility of silt blocks being congested on the filter, thereby improving the overall dredging efficiency of the dredging equipment. When the amount of remaining silt blocks increases, the adjusting mechanism adjusts to increase the distribution of the suction flow of the outer cavity, cooperates to increase the speed of the adjusting motor, increases the centrifugal action and the inclination angle of the filter, and improves the guiding efficiency of the silt blocks, further improving the effect of avoiding silt block congestion while increasing the suction efficiency of the silt mixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work:

[0009] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0010] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0011] Figure 3 For the present invention Figure 2 A magnified view of the structure at A;

[0012] Figure 4It is a schematic cross-sectional view of the structure of the rotating cylinder of the present invention;

[0013] Figure 5 For the present invention Figure 4 A magnified view of the structure at B in FIG.

[0014] Figure 6 For the present invention Figure 4 A magnified view of the structure at C in FIG.

[0015] Figure 7 For the present invention Figure 4 A magnified view of the structure at D in FIG.

[0016] Figure 8 It is a cross-sectional schematic diagram of the fixing structure of the fixing box of the present invention;

[0017] Fig. 9 It is a schematic diagram of the structure of the fixed shaft of the present invention.

[0018] In the figure: 1-sludge extraction cylinder, 2-No. 1 inner cylinder, 3-No. 2 inner cylinder, 4-rotating cylinder, 5-guide plate, 6-filter, 7-resistance mechanism, 701-resistance rod, 702-conductive block, 8-connecting cylinder, 9-transmission mechanism, 901-No. 1 gear, 902-No. 2 gear, 903-No. 3 gear, 904-No. 4 gear, 905-No. 5 gear, 906-No. 6 gear, 10-filter ring, 11-rotating rod, 12-diverter pipe, 13-motor, 14-transmission shaft, 15-fixed box, 16-connecting rod, 17-connecting shaft , 18-stirring rod, 19-blade, 20-fixed shaft, 21-transmission rod, 22-main pipe, 23-current sensor, 24-sliding rod, 25-pressure sensor, 26-proportional valve, 27-rotating sleeve, 28-connecting sleeve, 29-adjusting rod, 30-adjusting permanent magnet, 31-adjusting electromagnet, 32-adjusting tension spring, 33-closing block, 34-blocking block, 35-induction coil, 36-moving magnet, 37-adjusting spring, 38-blocking ring, 39-elastic part, 40-detection electromagnet, 41-connecting block, 42-contact rod. DETAILED DESCRIPTION

[0019] 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.

[0020] Embodiment 1, as Figure 1 , Figure 2 , Figure 4-Figure 6, a water conservancy project silt removal equipment, including a silt extraction cylinder 1, a No. 2 inner cylinder 3 is arranged on one side of the silt extraction cylinder 1, a connecting cylinder 8 is fixedly connected to one side of the silt extraction cylinder 1, a shunt pipe 12 is fixedly connected to one side of the connecting cylinder 8, the number of the shunt pipes 12 is set to two and the two shunt pipes 12 are symmetrically distributed on the outside of the connecting cylinder 8 about the axis of the connecting cylinder 8, one end of the shunt pipe 12 is fixedly connected to a main pipe 22, the main pipe 22 is fixedly connected to the No. 2 inner cylinder 3, the main pipe 22 is connected to the silt extraction pump through a hose as a silt extraction pipeline, the connecting cylinder 8 is fixedly arranged on an underwater walking mechanism or on a lifting mechanism of a silt extraction ship, a No. 1 inner cylinder 2 is arranged on the inner side of the silt extraction cylinder 1, the No. 1 inner cylinder 2 and the No. 2 inner cylinder 3 form an isolation cylinder and the isolation cylinder is fixed relative to the silt extraction cylinder 1, the isolation cylinder divides one side of the silt extraction cylinder 1 into an inner cavity and an outer cavity, the main pipe 22 is connected to the inner cavity, the connecting cylinder 8 is connected to the outer cavity, and the main pipe 22 is connected to the connecting cylinder 8 through the shunt pipe 12.

[0021] A motor 13 is fixedly arranged on the outside of the silt extraction cylinder 1, and a transmission shaft 14 is fixedly connected to the output end of the motor 13. A fixed box 15 is arranged on the inside of the silt extraction cylinder 1, and a connecting shaft 17 is rotatably connected to one side of the fixed box 15. The shaft body of the connecting shaft 17 is fixedly connected to a stirring rod 18 for driving the silt block to rotate, and one side of the stirring rod 18 is fixedly connected to a plurality of blades 19 for crushing the silt. A rotating cylinder 4 is movably sleeved on the outside of the No. 1 inner cylinder 2. The outer diameters of the No. 1 inner cylinder 2 and the No. 2 inner cylinder 3 are matched with the inner diameter of the rotating cylinder 4. The rotating cylinder 4 is movably sleeved on the outside of the No. 2 inner cylinder 3. The rotating cylinder 4 can rotate relative to the No. 1 inner cylinder 2 and the No. 2 inner cylinder 3. A transmission mechanism 9 is arranged in the fixed box 15. The motor 13 drives the transmission shaft 14 to rotate. The transmission shaft 14 cooperates with the transmission mechanism 9 to drive the connecting shaft 17 and the rotating cylinder 4 to rotate at different rated speeds.

[0022] Specifically, the transmission mechanism 9 includes a first gear 901, a second gear 902, a third gear 903 and a sixth gear 906. The first gear 901 is fixedly connected to the transmission shaft 14, the second gear 902 is fixedly sleeved on the outer side of the connecting shaft 17, the first gear 901 and the second gear 902 are meshed with each other, and a fourth gear 904 meshing with the third gear 903 is fixedly sleeved on one side of the connecting shaft 17 located in the fixed box 15, and the third gear 903 is connected to the fixed shaft through the rotating shaft. The fixed box 15 is rotatably connected, and the fifth gear 905 is fixedly sleeved on the outer side of the rotating shaft corresponding to the third gear 903. The sixth gear 906 is rotatably connected to the fixed box 15 through the rotating shaft and meshes with the fifth gear 905. A fixed shaft 20 is rotatably connected to one side of the fixed box 15. A transmission rod 21 for driving the rotating cylinder 4 to rotate is provided on the inner side of the rotating cylinder 4. The fixed shaft 20 is used to drive the transmission rod 21 to rotate, and the transmission rod 21 is located between the first inner cylinder 2 and the second inner cylinder 3.

[0023] When in use, the motor 13 cooperates with the transmission shaft 14 to drive the No. 1 gear 901 to rotate, and the No. 1 gear 901 cooperates with the No. 2 gear 902 to drive the connecting shaft 17 to rotate, and the connecting shaft 17 drives the stirring rod 18 to rotate, thereby driving the blade 19 to rotate and crush the sludge blocks entering the silt extraction cylinder 1, and the silt extraction pump respectively sucks the inner cavity and the outer cavity in the silt extraction cylinder 1 through the main pipe 22, the shunt pipe 12, and the connecting cylinder 8. A filter 6 is fixedly connected to one side of the No. 1 inner cylinder 2, and the filter 6 is configured as a filter net. The filter 6 filters the sludge mixture flowing into the inner cavity, and blocks the incompletely crushed sludge blocks and hard debris on one side of the filter 6. Furthermore, the filter 6 is configured as a conical filter net to guide the filtered sludge blocks and impurities to the outer cavity. At the same time, the stirring rod 18 rotates to drive the sludge mixture to rotate, and further guides large pieces of sludge to the outer cavity under the action of centrifugation.

[0024] The connecting shaft 17 cooperates with the No. 4 gear 904 to drive the No. 3 gear 903 to rotate, and the No. 3 gear 903 cooperates with the No. 5 gear 905 to drive the No. 6 gear 906 to rotate. The No. 6 gear 906 is fixedly connected to the fixed shaft 20 in a coaxial manner. The No. 6 gear 906 drives the fixed shaft 20 to rotate, and the fixed shaft 20 cooperates with the transmission rod 21 to drive the rotating cylinder 4 to rotate. A rotating rod 11 is fixedly arranged on the outer side of the rotating cylinder 4. The number of rotating rods 11 is set to be several. The rotating rod 11 further crushes the sludge blocks, and the crushed sludge enters the inner cavity through the filter screen and is extracted through the main pipe 22. A filter ring 10 for filtering the material in the outer cavity is fixedly arranged on one side of the sludge extraction cylinder 1. The large pieces of sludge are further crushed in the outer cavity and then sucked out through the connecting cylinder 8, the shunt pipe 12 and the main pipe 22. Therefore, without affecting the filtering efficiency of the filter 6, the accumulated large pieces of sludge are concentrated and crushed again, so that this part of the sludge is crushed and exported separately, thereby improving the crushing efficiency of this part of the sludge and improving the overall sludge extraction efficiency of the dredging equipment.

[0025] Furthermore, a fixing rod for fixing the No. 1 inner cylinder 2 is fixedly provided on the inner side of the silt extraction cylinder 1, and the fixing rod is fixedly connected to the No. 1 inner cylinder 2. A positioning rod for positioning the fixing box 15 is fixedly connected to the inner side of the No. 1 inner cylinder 2, and the positioning rod is fixedly connected to the fixing box 15. A guide plate 5 is provided on one side outside the No. 1 inner cylinder 2. The guide plate 5 is an annular plate with a conical cross-section. The outer conical slope of the guide plate 5 is used to guide large pieces of silt to the outer cavity. At the same time, the inner conical slope of the guide plate 5 is used to block hard debris in the outer cavity at the rotating rod 11. The rotating rod 11 rotates to hit the hard impurities, and the hard impurities grind the silt blocks in the outer cavity, thereby further improving the crushing efficiency of the silt blocks in the outer cavity and improving the efficiency of silt extraction.

[0026] Embodiment 2, based on embodiment 1, as Figure 2-Figure 4 and Figure 7A detection mechanism is provided in the silt extraction cylinder 1, and the detection mechanism detects the amount of silt in the outer cavity. Further, a connecting sleeve 28 is slidably sleeved on one side of the connecting shaft 17, and the connecting sleeve 28 can rotate and slide relative to the connecting shaft 17. The connecting sleeve 28 can move axially relative to the fixed box 15. An adjusting rod 29 is fixedly connected to one side of the connecting sleeve 28, and an adjusting permanent magnet 30 is fixedly connected to one side of the adjusting rod 29. An adjusting electromagnet 31 corresponding to the position of the adjusting permanent magnet 30 is fixedly provided on one side of the fixed box 15, and a repulsive force is formed between the adjusting electromagnet 31 and the adjusting permanent magnet 30. Force, one side of the connecting sleeve 28 is fixedly connected with an adjusting tension spring 32, one end of the adjusting tension spring 32 is fixedly connected to the fixed box 15, the filter 6 is configured as a flexible filter net with elasticity and is fixedly connected to the connecting sleeve 28. When the detection mechanism detects that the amount of sludge blocks in the outer cavity increases, the repulsive force between the adjusting electromagnet 31 and the adjusting permanent magnet 30 increases and is greater than the tension of the adjusting tension spring 32, and the adjusting rod 29 cooperates to push the connecting shaft 17 to move, so that the conical inclination angle of the filter 6 increases, thereby increasing the efficiency of introducing large pieces of sludge into the outer cavity, and further improving the sludge extraction efficiency.

[0027] The bottom of the connecting sleeve 28 is fixedly connected with a connecting rod 16, one end of the connecting rod 16 is fixedly connected with the guide plate 5, the guide plate 5 is slidably sleeved with the No. 1 inner tube 2, and the guide plate 5 can only slide axially relative to the No. 1 inner tube 2. Specifically, a convex strip is provided on the outer side of the No. 1 inner tube 2 to limit the rotation of the corresponding guide plate 5. The movement of the connecting sleeve 28 drives the guide plate 5 to move. When the amount of sludge blocks entering the outer cavity increases, the distance between the guide plate 5 and the filter ring 10 and the inner wall of the sludge extraction tube 1 increases. When the inclination angle of the filter 6 increases, the size of the channel between the guide plate 5 and the sludge extraction tube 1 and the size of the cavity surrounded by the rotating rod 11 are increased to adapt to the increased amount of sludge blocks. The pipe body of the shunt pipe 12 is provided with a proportional valve 26. When the amount of sludge blocks entering the outer cavity increases, the opening of the proportional valve 26 increases, so that the sludge mixture is easier to be sucked through the outer cavity, thereby improving the efficiency of guiding the sludge blocks, facilitating the subsequent crushing and grinding of the sludge blocks, and further improving the sludge suction efficiency.

[0028] When the detection mechanism detects that the amount of sludge blocks introduced into the outer cavity is reduced, the controller corresponding to the motor 13 controls the rotation speed of the motor 13 to decrease, thereby reducing the contact efficiency between the rotating rod 11 and the hard debris and avoiding unnecessary wear of the rotating rod 11. When the detection mechanism detects that the amount of sludge blocks introduced into the outer cavity is increased, the controller corresponding to the motor 13 controls the rotation speed of the motor 13 to increase, thereby increasing the contact efficiency between the rotating rod 11 and the hard debris and improving the efficiency of the rotating rod 11 and the hard debris remaining in the sludge in cooperating to grind the sludge blocks.

[0029] Embodiment three, as Figure 1-Figure 4 and Figure 7The detection mechanism includes a contact rod 42, which is slidably connected to the silt extraction tube 1. A sliding rod 24 is fixedly connected to one side of the contact rod 42. A variable resistance mechanism 7 is arranged on one side of the silt extraction tube 1. The variable resistance mechanism 7 includes two resistance rods 701. A conductive block 702 is slidably sleeved on the outer sides of the two resistance rods 701. One end of the resistance rod 701 is a wiring terminal. When the conductive block 702 slides relative to the resistance rod 701, the resistance of the resistance rod 701 connected to the circuit changes. The resistance rod 701 and the adjusting electromagnet 31 are connected to the circuit in series. A connecting block 41 is fixedly connected to the top of the conductive block 702. An elastic member 39 is fixedly connected to one side of the connecting block 41. The elastic member 39 is arranged as a reset spring. A sensor is fixedly arranged on one side of the silt extraction tube 1. The sensor can be arranged as a pressure sensor 25. The sensor can also be arranged as a current sensor 23. The pressure sensor 25 corresponds to the position of the elastic member 39. The current sensor 23 is electrically connected to the variable resistance mechanism 7.

[0030] When the amount of sludge blocks introduced into the outer cavity increases, the frequency of contact between the sludge blocks and the contact rod 42 increases, and the sludge blocks push the contact rod 42 to contract, and the contact rod 42 drives the sliding rod 24 to move, thereby driving the conductive block 702 to slide, and the resistance value of the resistor rod 701 connected to the circuit decreases, so that the regulating electromagnet 31 is more in the current increasing state relative to before the amount of sludge blocks increases, so that the filter 6 is more in the state of increasing inclination angle, and the discontinuous contact between the sludge blocks and the contact rod 42 makes the resistance value of the variable resistance mechanism 7 alternately increase and decrease while being kept in a small state, so that the regulating electromagnet 31 and the regulating permanent magnet 30 The repulsive force fluctuates, thereby causing the equilibrium position of the connecting sleeve 28 to move back and forth, driving the flexible filter 6 to vibrate, while the inclination angle is more in an increasing state, while reducing the possibility of sludge block adhesion, further guiding the sludge block to the outer cavity, ensuring the subsequent grinding efficiency of the sludge block, thereby improving the silt extraction efficiency of the silt removal equipment, the controller adjusts the speed of the motor 13 according to the feedback value detected by the pressure sensor 25 or the current sensor 23, the variable resistance mechanism 7 and the proportional valve 26 are electrically connected in series, when the resistance value of the variable resistance mechanism 7 decreases, the current flowing through the proportional valve 26 increases, and the opening of the proportional valve 26 is more in an increasing state.

[0031] Embodiment 4, as Figure 2-Figure 6 , Figure 8 and Fig. 9, which is different from the contact rod 42 and the sliding rod 24 in Example 3, and the elastic member 39 is set as a reset tension spring, the detection mechanism also includes a variable resistance mechanism 7, a connecting block 41, an elastic member 39 and a sensor, the detection mechanism also includes a detection electromagnet 40, the connecting block 41 is set as a ferromagnetic block and corresponds to the position of the detection electromagnet 40, and the force between the ferromagnetic block and the detection electromagnet 40 is an attractive force, the detection mechanism also includes a rotating sleeve 27, the rotating sleeve 27 is slidably sleeved on the outer side of the fixed shaft 20, and the rotating sleeve 27 can only slide relative to the fixed shaft 20. Specifically, a convex strip for limiting the relative rotation of the rotating sleeve 27 is fixedly provided on the outer side of the fixed shaft 20, the fixed shaft 20 can drive the rotating sleeve 27 to rotate, the rotating sleeve 27 is fixedly connected to the transmission rod 21, and the rotating cylinder 4 can rotate relative to the isolation cylinder and slide axially relative to the isolation cylinder.

[0032] A moving magnet 36 is arranged on the inner side of the rotating sleeve 27. The number of the moving magnets 36 is set to be several and the several moving magnets 36 are evenly arranged in a ring shape in the rotating sleeve 27. An induction coil 35 is fixedly arranged on one side of the fixed box 15. The position of the induction coil 35 corresponds to the position of the fixed shaft 20. An adjusting spring 37 is fixedly connected to one side of the transmission rod 21. When the amount of sludge blocks introduced into the outer cavity changes, the contact frequency between the rotating rod 11 and the sludge blocks in the outer cavity changes. When the rotating rod 11 hits the material, it drives the rotating cylinder 4 to move axially. The rotating cylinder 4 drives the transmission rod 21 to move. The transmission rod 21 drives the rotating sleeve 27 to move. The rotating sleeve 27 drives the moving magnet 36 to move. When the rotating rod 11 is out of contact with the material, the adjusting spring 37 drives the transmission to push the rotating rod 11 to reset, so that the moving magnet 36 moves back and forth, thereby generating current in the induction coil 35. The induction coil 35 is electrically connected to the detection electromagnet 40. The current of the induction coil 35 increases according to the increase in the frequency of contact between the material and the rotating rod 11.

[0033] When the amount of sludge blocks introduced into the outer cavity increases, the current generated by the induction coil 35 is more in an increasing state and the current size fluctuates, thereby improving the matching degree between the inclination angle and the shaking frequency of the filter 6 and the amount of sludge blocks in the sludge extraction tube 1, and reducing the possibility of sludge blocks adhering to the filter 6 when the amount of sludge blocks increases, and guiding more sludge blocks to the outer cavity, thereby ensuring the subsequent grinding efficiency of the sludge blocks, and further improving the sludge extraction efficiency of the dredging equipment.

[0034] A retaining ring 38 is rotatably arranged between the No. 1 inner cylinder 2 and the No. 2 inner cylinder 3. The retaining ring 38 limits the sliding range of the rotating cylinder 4. A through groove is opened on the retaining ring 38. The number of the through grooves is set to match the number of the transmission rods 21. The transmission rod 21 is arranged in the corresponding through groove. A closing block 33 is slidably sleeved in the through groove. An adjusting spring 37 is arranged in the through groove. The transmission rod 21 and the rotating cylinder 4 are both fixedly connected to the closing block 33. A stopper 34 is fixedly sleeved on one end of the rod body of the transmission rod 21. The rotation of the transmission rod 21 drives the closing block 33 to rotate, and the closing block 33 drives the rotating cylinder 4 to rotate. The axial movement of the rotating cylinder 4 drives the closing block 33 to move, and the stopper 34 closes the through groove.

[0035] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hydraulic engineering dredging device, characterized in that: The invention comprises a silt extraction cylinder (1), wherein a second inner cylinder (3) is arranged on one side of the silt extraction cylinder (1), a first inner cylinder (2) is arranged on the inner side of the silt extraction cylinder (1), the first inner cylinder (2) and the second inner cylinder (3) are arranged in a coaxial manner to form an isolation cylinder, the isolation cylinder divides one side of the silt extraction cylinder (1) into an inner cavity and an outer cavity respectively located inside and outside the isolation cylinder, a fixed box (15) is arranged on the inner side of the silt extraction cylinder (1), the fixed box (15) is fixed relative to the silt extraction cylinder (1), one side of the fixed box (15) is rotatably connected to a connecting shaft (17), the shaft body of the connecting shaft (17) is fixedly connected to a stirring rod (18) for driving the silt blocks to rotate, the outer side of the first inner cylinder (2) is movably sleeved with a rotating cylinder (4), and one side of the first inner cylinder (2) is fixedly connected to a filter (6) for filtering the silt mixed liquid entering the inner cavity and guiding the filtered silt blocks; The silt extraction cylinder (1) is provided with an adjustment mechanism, a rotating rod (11) is fixedly provided on the outer side of the rotating cylinder (4), and a filter ring (10) for filtering materials in the outer cavity is fixedly provided on one side of the silt extraction cylinder (1). The adjustment mechanism is used to drive the connecting shaft (17) to rotate, so that the connecting shaft (17) drives the stirring rod (18) to rotate, and drives the sludge mixture to rotate before the sludge mixture enters the inner cavity and the outer cavity. The centrifugal effect generated by the rotation of the sludge mixture cooperates with the diversion effect of the filter (6) on the sludge blocks to guide the sludge blocks to the outer cavity, so that the sludge blocks are separated from the contact with the filter (6).

2. A hydraulic engineering dredging device according to claim 1, characterized in that: The regulating mechanism comprises a connecting tube (8), the silt extraction tube (1) is fixedly connected to the connecting tube (8), one side of the connecting tube (8) is fixedly connected to a shunt tube (12), one end of the shunt tube (12) is fixedly connected to a main tube (22) connected to a silt extraction pump via a hose, the main tube (22) is communicated with an inner cavity, the connecting tube (8) is communicated with an outer cavity, a transmission mechanism (9) is arranged in the fixed box (15), a transmission rod (21) for driving the rotating tube (4) to rotate is arranged on the inner side of the rotating tube (4), a fixed shaft (20) for driving the transmission rod (21) to rotate is rotatably connected to one side of the fixed box (15), and the filter (6) is arranged as a conical filter screen.

3. A hydraulic engineering dredging device according to claim 2, characterized in that: The number of the rotating rods (11) is set to be several, and the regulating mechanism also includes a guide plate (5), the guide plate (5) is an annular plate with a conical cross-section, the outer conical inclined surface of the guide plate (5) is used to guide the sludge blocks to the outer cavity, and the inner conical inclined surface of the guide plate (5) is used to block hard debris in the outer cavity at the rotating rod (11).

4. A hydraulic engineering dredging device according to claim 2, characterized in that: The adjustment mechanism also includes a detection mechanism for detecting the amount of sludge in the outer cavity, a connecting sleeve (28) is slidably sleeved on one side of the connecting shaft (17), an adjusting rod (29) is fixedly connected to one side of the connecting sleeve (28), an adjusting permanent magnet (30) is fixedly connected to one side of the adjusting rod (29), an adjusting electromagnet (31) corresponding to the position of the adjusting permanent magnet (30) is fixedly arranged on one side of the fixed box (15), an adjusting tension spring (32) is fixedly connected to one side of the connecting sleeve (28), one end of the adjusting tension spring (32) is fixedly connected to the fixed box (15), and the filter (6) is configured as a flexible filter net with elasticity and is fixedly connected to the connecting sleeve (28).

5. A hydraulic engineering dredging device according to claim 4, characterized in that: There is a repulsive force between the adjusting electromagnet (31) and the adjusting permanent magnet (30); a connecting rod (16) is fixedly connected to the bottom of the connecting sleeve (28); the connecting rod (16) is fixedly connected to the guide plate (5); the guide plate (5) is slidably sleeved with the first inner cylinder (2); and a convex strip for limiting the rotation of the corresponding guide plate (5) is arranged on the outer side of the first inner cylinder (2).

6. A hydraulic engineering dredging device according to claim 4, characterized in that: The pipe body of the diverter pipe (12) is provided with a proportional valve (26) for adjusting the opening of the diverter pipe (12). The proportional valve (26) adjusts the opening of the diverter pipe (12) to adjust the distribution of the sludge flow sucked by the main pipe (22) and the diverter pipe (12).

7. A hydraulic engineering dredging device according to claim 4, characterized in that: The detection mechanism comprises a variable resistance mechanism (7), the variable resistance mechanism (7) comprises two resistance rods (701), the outer sides of the two resistance rods (701) are slidably sleeved with conductive blocks (702), one end of the resistance rods (701) is a wiring terminal, the resistance rods (701) and the regulating electromagnet (31) are connected to the circuit in series, the top of the conductive block (702) is fixedly connected with a connecting block (41), one side of the connecting block (41) is fixedly connected with an elastic member (39), and a sensor is fixedly arranged on one side of the sludge extraction cylinder (1).

8. A hydraulic engineering dredging device according to claim 7, characterized in that: The detection mechanism further comprises a contact rod (42), the contact rod (42) being slidably connected to the silt extraction cylinder (1), one side of the contact rod (42) being fixedly connected to a sliding rod (24), and the elastic member (39) being configured as a reset spring.

9. A hydraulic engineering dredging device according to claim 7, characterized in that: The elastic member (39) is configured as a reset tension spring. The detection mechanism further comprises a detection electromagnet (40) and a rotating sleeve (27). The connecting block (41) is configured as a ferromagnetic block. The rotating sleeve (27) is slidably sleeved on the outer side of the fixed shaft (20). The outer side of the fixed shaft (20) is fixedly provided with a convex strip for limiting the relative rotation of the rotating sleeve (27). The rotating sleeve (27) is fixedly connected to the transmission rod (21). A plurality of movable magnets (36) are arranged on the inner side of the rotating sleeve (27). An induction coil (35) is fixedly arranged on one side of the fixed box (15). An adjustment spring (37) is fixedly connected to one side of the transmission rod (21). The induction coil (35) is electrically connected to the detection electromagnet (40). A retaining ring (38) is rotatably arranged between the first inner cylinder (2) and the second inner cylinder (3), and a through groove is provided on the retaining ring (38). A closing block (33) is slidably sleeved in the through groove, and a retaining block (34) for closing the through groove is fixedly sleeved on one end of the rod body of the transmission rod (21).

10. The hydraulic engineering dredging equipment according to claim 2, characterized in that: A motor (13) is fixedly arranged on the outside of the silt extraction cylinder (1), and a transmission shaft (14) is fixedly connected to the output end of the motor (13); a fixing rod for fixing the first inner cylinder (2) is fixedly arranged on the inside of the silt extraction cylinder (1), and a positioning rod for positioning a fixing box (15) is fixedly connected to the inside of the first inner cylinder (2); A plurality of blades (19) for crushing sludge are fixedly connected to one side of the stirring rod (18); the transmission mechanism (9) comprises a first gear (901), a second gear (902), a third gear (903) and a sixth gear (906); the first gear (901) is fixedly connected to the transmission shaft (14); the second gear (902) is fixedly sleeved on the outer side of the connecting shaft (17); the first gear (901) and the second gear (902) are meshed with each other; the connecting shaft ( A fourth gear (904) meshing with the third gear (903) is fixedly sleeved on one side of the gear (17); the third gear (903) is rotationally connected to the fixed box (15) via a rotating shaft; a fifth gear (905) is fixedly sleeved on the rotating shaft corresponding to the third gear (903); the sixth gear (906) is rotationally connected to the fixed box (15) via a rotating shaft and meshes with the fifth gear (905); the sixth gear (906) is coaxially fixedly connected to the fixed shaft (20).

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