A port channel dredging device

Abstract

The utility model relates to port field, and disclose a kind of port channel dredging device, including ship body, storage tank, suction pipe, telescopic arm mechanism and spacing adjustable harrow tooth mechanism etc., storage tank is fixedly installed inside ship body, suction pipe is symmetrically arranged in both sides, suction pipe end is equipped with suction head, device uses unique telescopic arm mechanism, realize vertical lifting by motor drive screw rod, with synchronous belt transmission drive horizontal telescopic, can flexibly adjust operation depth and range, spacing adjustable harrow tooth mechanism is linked by screw rod and connecting rod assembly, realize accurate adjustment of harrow tooth spacing, adapt to different silt working condition, suction pipe penetrates entire telescopic mechanism, suction head is located at harrow tooth both sides, can immediately carry out efficient adsorption after harrow tooth loosens silt, storage tank is directly communicated with suction pipe, realize the continuous collection and temporary storage of silt, the utility model is through the cooperation of each mechanism, solved the problem that traditional dredging equipment is not flexible, dredging is not thorough, silt is easy to diffuse etc.

Description

Technical Field

[0001] This utility model relates to the port sector, specifically a port channel dredging device. Background Technology

[0002] Ports and waterways, as key nodes in water transportation, are subject to long-term effects from water erosion, sediment deposition, and disturbances from ship navigation, which gradually lead to silt accumulation. If not cleaned in time, this will not only cause the waterway to become shallower, restricting the passage of large ships, but may also cause bacteria to grow due to pollutants in the silt, affecting water quality and damaging the aquatic ecosystem. Therefore, port and waterway dredging equipment is an important piece of equipment to ensure the normal operation of ports and maintain the ecological balance of aquatic waters.

[0003] Traditional port and waterway dredging devices lack flexibility in adjusting their operating range and depth. The spacing between the rake teeth is mostly fixed, making it difficult to adapt to different silt thicknesses and distribution densities in different waterways. Either the spacing is too large, resulting in ineffective loosening of deep silt and incomplete dredging, or the spacing is too small, causing excessive disturbance to the riverbed structure and destroying aquatic habitats. On the other hand, the loosened silt during the dredging process does not fit tightly with the collection device, and some silt easily spreads in the water, reducing the collection efficiency of a single dredging operation. To address these issues, we propose a new port and waterway dredging device. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a port and waterway dredging device, which solves the above-mentioned problems.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a port channel dredging device, comprising a hull, a storage tank, and a suction pipe. The storage tank is fixedly installed in the middle of the hull. The storage tank has a hollow internal box structure. Suction pipes are symmetrically fixedly connected to both sides of the storage tank. Two diversion pipes are installed on the suction pipes, and suction heads are fixedly installed on the bottom surface of both diversion pipes. The suction pipes are connected to the interior of the storage tank. The hull body has symmetrical sliding holes on both sides corresponding to the storage box. The inner bottom surface of the hull is fixedly installed with a second fixed seat next to the sliding hole. The second fixed seat is "n" shaped. A motor is fixedly installed on the top surface of the horizontal plate of the second fixed seat. A second lead screw is rotatably connected to the bottom surface of the horizontal plate of the second fixed seat. The output shaft of the motor and the second lead screw are coaxially fixedly connected. Sliding grooves are opened on the opposite surfaces of the two vertical plates of the second fixed seat. The second fixed seat is equipped with a telescopic arm mechanism, which includes a first telescopic arm assembly and a second telescopic arm assembly. The bottom surface of the telescopic arm assembly 2 is fixedly connected to a fixed base 1. Support plates are symmetrically fixedly installed on the bottom surface of the fixed base 1 near both sides. A lead screw 1 is rotatably connected between the two support plates. Another motor is fixedly installed on the outer wall of one of the support plates. The output shaft of the motor and the lead screw are coaxially fixedly connected. Guide rods are symmetrically fixedly installed between the two support plates of the fixed base 1, corresponding to the two sides of the lead screw 1. The fixed base 1 is provided with an adjustable-gap rake tooth mechanism. A hinge shaft is fixedly installed on the plane of the fixed base one near one of the support plates, and sliding holes are symmetrically opened on the plane of the fixed base one. The suction tube passes through the telescopic arm mechanism and the adjustable-pitch rake tooth mechanism.

[0006] Preferably, the telescopic arm assembly includes a motor, a sliding seat, a pulley, and a timing belt. The sliding seat is a rectangular frame, and sliding strips are symmetrically fixedly installed on both outer frames of the sliding seat. The sliding strips on the sliding seat are slidably connected to the sliding grooves on the fixed seat. One of the outer frames on the other two sides of the sliding seat has a threaded hole, and the other frame has a square sliding hole. The threaded hole on the sliding seat is threadedly connected to the lead screw. The top surfaces of the two side frames of the sliding seat 2, which have threaded holes, are rotatably connected to pulleys. A synchronous belt drives the two pulleys together. A support frame is also fixedly installed on the top surface of one side frame of the sliding seat 2. Another motor is fixedly connected to the support frame, and the output shaft of the motor is coaxially fixedly connected to one of the pulleys.

[0007] Preferably, the telescopic arm assembly two includes a sliding seat one, which is square in shape. The sliding seat one and the sliding seat two are slidably connected. A fixing block is fixedly installed on the upper surface of the sliding seat one, and the fixing block on the sliding seat one is fixedly connected to one of the synchronous belts.

[0008] Preferably, the sidewall of the sliding seat one is symmetrically provided with a connecting hole one that extends to the other side, the sidewall of the sliding seat two is symmetrically provided with a connecting hole two on both sides corresponding to the threaded hole, and the horizontal plate of the fixed seat two is symmetrically provided with a connecting hole three on both sides corresponding to the lead screw two. The first connecting hole on the first sliding seat, the second connecting hole on the second sliding seat, and the third connecting hole on the second fixed seat are all coaxially corresponding.

[0009] Preferably, the bottom surface of the sliding seat is fixedly connected to the fixed seat.

[0010] Preferably, the adjustable pitch rake tooth mechanism includes rake teeth, connecting rod one, connecting rod two, and connecting rod three. A threaded hole is provided in the middle of the side wall of the rake tooth, and sliding holes are symmetrically provided on both sides of the side wall of the rake tooth corresponding to the threaded hole. The threaded hole on the rake tooth is threadedly connected to the lead screw one, and the sliding hole on the rake tooth is slidably connected to the guide rod. A rotating shaft is fixedly installed on the bottom surface of the rake tooth. A connecting rod 1 is hinged to the hinge shaft of the fixed base 1. A connecting rod 2 is hinged to the other end of the connecting rod 1. The middle part of the connecting rod 2 is hinged to the rotation shaft at the bottom of the rake tooth. The other end of the connecting rod 2 is hinged to another connecting rod 2. The middle part of each connecting rod 2 corresponds to the rotation shaft on each rake tooth. A connecting rod 3 is hinged to the other end of the last connecting rod 2. The other end of the connecting rod 3 is rotatably connected to the rotation shaft on the last rake tooth. One end of the rake teeth is sharp.

[0011] Preferably, the two branch pipes on the suction tube correspond to the first connection hole on the first sliding seat, the second connection hole on the second sliding seat, the third connection hole on the second fixed seat, and the connection hole on the first fixed seat, respectively. The suction heads on the suction tube are located on both sides of the rake teeth.

[0012] Compared with the prior art, this utility model provides a port and waterway dredging device, which has the following beneficial effects: 1. The port and waterway dredging device drives the sliding seat 2 to move up and down through the screw 2 on the fixed seat 2 of the telescopic arm mechanism, and in conjunction with the synchronous belt, drives the sliding seat 1 to extend and retract back and forth, which can flexibly adjust the underwater depth of the rake tooth mechanism and the suction head; at the same time, the rake tooth mechanism is linked with the screw 1 and the connecting rod assembly, which can accurately adjust the rake tooth spacing according to the thickness of the silt and other conditions, avoiding the problems of incomplete dredging or excessive disturbance to the riverbed caused by the fixed rake tooth spacing of traditional devices.

[0013] 2. The port channel dredging device has a suction pipe that passes through the telescopic arm mechanism and the adjustable-spacing rake tooth mechanism, with the suction head located on both sides of the rake teeth. When the rake teeth loosen the silt, the suction head can immediately and efficiently adsorb the loosened silt, reducing the diffusion of silt in the water and improving the collection rate of a single dredging operation. In addition, the storage box is located in the middle of the hull and is directly connected to the suction pipe, which can store the adsorbed silt in real time without the need for frequent docking and dumping at the shore, thus improving the continuity and overall efficiency of dredging operations. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the telescopic arm mechanism of this utility model; Figure 4 This is a schematic diagram of the adjustable-spacing rake tooth mechanism of this utility model.

[0015] In the diagram: 1. Hull; 2. Storage tank; 3. Suction pipe; 4. Motor; 5. Fixed seat one; 6. Lead screw one; 7. Rake teeth; 8. Sliding seat one; 9. Sliding seat two; 10. Fixed seat two; 11. Lead screw two; 12. Pulley; 13. Synchronous belt; 14. Guide rod; 15. Connecting rod one; 16. Connecting rod two; 17. Connecting rod three. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4 A port channel dredging device includes a hull 1, a storage tank 2 and a suction pipe 3. The storage tank 2 is fixedly installed in the middle of the hull 1. The storage tank 2 is a hollow box structure. The suction pipe 3 is symmetrically fixedly connected to both sides of the storage tank 2. Two diversion pipes are installed on the suction pipe 3, and suction heads are fixedly installed on the bottom surface of the two diversion pipes. The suction pipe 3 and the interior of the storage tank 2 are connected. The hull 1 has symmetrical sliding holes on both sides corresponding to the storage box 2. The bottom surface of the hull 1 is fixedly installed with a second fixed seat 10 next to the sliding holes. The second fixed seat 10 is in the shape of an "n". The top surface of the horizontal plate of the second fixed seat 10 is fixedly installed with a motor 4. The bottom surface of the horizontal plate of the second fixed seat 10 is rotatably connected with a second lead screw 11. The output shaft of the motor 4 and the second lead screw 11 are coaxially fixedly connected. The two vertical plates of the second fixed seat 10 have sliding grooves on their opposite surfaces. The second fixed seat 10 is equipped with a telescopic arm mechanism, which includes a first telescopic arm assembly and a second telescopic arm assembly. The bottom surface of the telescopic arm assembly 2 is fixedly connected to a fixed seat 5. Support plates are symmetrically fixedly installed on the bottom surface of the fixed seat 5 near both sides. A lead screw 6 is rotatably connected between the two support plates. Another motor 4 is fixedly installed on the outer wall of one of the support plates. The output shaft of the motor 4 is coaxially fixedly connected to the lead screw 6. Guide rods 14 are symmetrically fixedly installed between the two support plates of the fixed seat 5 corresponding to the two sides of the lead screw 6. An adjustable-gap rake tooth mechanism is provided on the fixed seat 5. A hinge shaft is fixedly installed on the plane of the fixed base 5 near one of the support plates, and sliding holes are symmetrically opened on the plane of the fixed base 5. The suction tube 3 passes through the telescopic arm mechanism and the adjustable-pitch rake tooth mechanism.

[0018] Furthermore, the telescopic boom assembly includes a motor 4, a sliding seat 9, a pulley 12, and a timing belt 13. The sliding seat 9 is a rectangular frame, and sliding strips are symmetrically fixedly installed on both outer frames of the sliding seat 9. The sliding strips on the sliding seat 9 are slidably connected to the sliding grooves on the fixed seat 10. One of the outer frames on the other two sides of the sliding seat 9 has a threaded hole, and the other frame has a square sliding hole. The threaded hole on the sliding seat 9 is threadedly connected to the lead screw 11. The top surfaces of the two side frames of the sliding seat 2 9 with threaded holes are respectively rotatably connected to pulleys 12, and the two pulleys 12 are connected by a synchronous belt 13. A support frame is also fixedly installed on the top surface of one side frame of the sliding seat 2 9. Another motor 4 is fixedly connected on the support frame, and the output shaft of the motor 4 is coaxially fixedly connected to one of the pulleys 12.

[0019] Furthermore, the telescopic boom assembly 2 includes a sliding seat 1 8, which is square in shape. The sliding seat 1 8 and the sliding seat 2 9 are slidably connected. A fixing block is fixedly installed on the upper surface of the sliding seat 1 8. The fixing block on the sliding seat 1 8 is fixedly connected to one of the synchronous belts 13.

[0020] Furthermore, the side wall of the sliding seat 8 is symmetrically provided with a connecting hole 1 that extends to the other side, the side wall of the sliding seat 9 is symmetrically provided with a connecting hole 2 on both sides corresponding to the threaded hole, and the horizontal plate of the fixed seat 10 is symmetrically provided with a connecting hole 3 on both sides corresponding to the lead screw 11. The connecting hole 1 on sliding seat 1 8, the connecting hole 2 on sliding seat 2 9, and the connecting hole 3 on fixed seat 2 10 are all coaxially corresponding. Connecting holes 1, 2, and 3 correspond to each other, providing positioning for the installation of the suction pipe 3 and ensuring that the suction pipe 3 can smoothly pass through the telescopic arm mechanism and extend from fixed seat 2 10 to sliding seat 1 8. The setting of these connecting holes ensures the stability of the suction pipe 3 during the dredging operation, avoiding displacement due to vibration or external force. At the same time, it allows the suction pipe 3 to be tightly integrated with each component. When the telescopic arm mechanism adjusts the depth, the suction pipe 3 can move synchronously, ensuring that the suction head is always in the optimal working position, working in conjunction with the rake teeth 7 to promptly and effectively absorb the silt loosened by the rake teeth 7, thereby improving the dredging effect.

[0021] Furthermore, a fixed seat 5 is fixedly connected to the bottom surface of the sliding seat 8.

[0022] Furthermore, the adjustable pitch rake tooth mechanism includes rake teeth 7, connecting rod 15, connecting rod 2 16 and connecting rod 3 17. A threaded hole is provided in the middle of the side wall of rake teeth 7. Sliding holes are symmetrically provided on both sides of the side wall of rake teeth 7 corresponding to the threaded hole. The threaded hole on rake teeth 7 is threadedly connected to lead screw 16. The sliding hole on rake teeth 7 is slidably connected to guide rod 14. A rotating shaft is fixedly installed on the bottom surface of rake teeth 7. A connecting rod 15 is hinged to the hinge shaft of the fixed base 15. A connecting rod 2 16 is hinged to the other end of the connecting rod 15. The middle part of the connecting rod 2 16 is hinged to the rotation shaft at the bottom of the rake tooth 7. The other end of the connecting rod 2 16 is hinged to another connecting rod 2 16. The middle part of each connecting rod 2 16 corresponds to the rotation shaft on each rake tooth 7. A connecting rod 3 17 is hinged to the other end of the last connecting rod 2 16. The other end of the connecting rod 3 17 is rotatably connected to the rotation shaft on the last rake tooth 7. One end of the rake tooth 7 is sharp. As a component that directly acts on the silt, the sharp end of the rake tooth 7 can easily insert into silt layers of different hardness, effectively loosening the silt.

[0023] Furthermore, the two diversion pipes on the suction pipe 3 correspond to the connection hole 1 on the sliding seat 8, the connection hole 2 on the sliding seat 9, the connection hole 3 on the fixed seat 10, and the connection hole on the fixed seat 5, respectively. The suction heads on the suction tube 3 are located on both sides of the rake teeth 7.

[0024] Structural Description: Hull 1: Hull 1 is the waterborne support platform of the entire device. Storage box 2 is fixedly installed in the middle of the interior. Sliding holes are symmetrically opened on both sides for the telescopic arm mechanism to move. Fixed base 2 10 is fixedly installed on the inner bottom surface next to the sliding holes, serving as the installation base for all components. It provides stable waterborne support for dredging operations, ensures the coordinated operation of various mechanisms, and is the core carrier for the device to realize waterborne movement and operation. Storage box 2: Storage box 2 is a sludge temporary storage component. It is a hollow box structure that is fixed in the middle of the hull 1. It is symmetrically connected to the suction pipes 3 on both sides and the inside is connected. It is used to receive the sludge transported by the suction pipes 3. The closed structure prevents leakage. Its setting reduces the number of times the sludge is frequently dumped and is a key storage structure to ensure the continuity of dredging operations. Suction pipe 3: Suction pipe 3 is a sludge conveying channel. One end is connected to storage tank 2, and the other end is equipped with two diversion pipes. The bottom surface of the diversion pipe is equipped with a suction head, which passes through the telescopic arm mechanism and the adjustable spacing rake tooth mechanism. The suction head is located on both sides of the rake tooth 7, which can suck in the sludge loosened by the rake tooth 7 and transport it to storage tank 2. Motor 4: Motor 4 is the power source of the device. Multiple motors 4 are respectively installed on the top surface of the horizontal plate of fixed seat 2 10, the outer wall of the support plate of fixed seat 1 5, and the support frame of sliding seat 2 9. The output shaft is coaxially and fixedly connected to lead screw 2 11, lead screw 1 6, and pulley 12, respectively, to provide power for lead screw rotation and synchronous belt transmission, drive telescopic arm extension and retraction, and adjust the rake tooth spacing, etc., and is the core power for the operation of the device. Fixed base 5: Fixed base 5 is the mounting support component of the rake tooth mechanism. The bottom surface is symmetrically fixed with support plates near both sides. The screw 6 is rotatably connected between the support plates. Guide rods 14 are symmetrically installed on both sides. The plane is provided with a hinge shaft and sliding hole. The top is fixedly connected to the bottom surface of the telescopic arm assembly 2, providing stable support for the screw 6, guide rods 14 and rake tooth mechanism. At the same time, it is connected to the connecting rod assembly through the hinge shaft. It is the key structure connecting the telescopic arm and the rake tooth mechanism. Lead screw 6: Lead screw 6 is a transmission component for adjusting the spacing between rake teeth. It is rotatably connected between the two support plates of the fixed base 5. One end is connected to the output shaft of the motor 4, and the surface is threaded to the threaded hole of the rake tooth 7. When the motor 4 drives it to rotate, it drives the rake tooth 7 to slide along the guide rod 14. It works with the connecting rod assembly to realize the synchronous adjustment of the spacing between the rake teeth 7. It is the core transmission component for realizing the adjustable spacing between rake teeth. Rake tooth 7: Rake tooth 7 is the actuating component for loosening silt. It has a threaded hole in the middle of the side wall that connects to lead screw 6, and sliding holes on both sides that are slidably connected to guide rod 14. The bottom surface is fixed with a rotating shaft that is hinged to connecting rod 16. One end is sharp and moves along guide rod 14 under the drive of lead screw 6. The spacing is adjusted by linkage with the connecting rod. The sharp end is inserted into and loosens the silt, providing conditions for the suction head to adsorb it. It is a sludge removal component that directly acts on the silt. Sliding seat 18: Sliding seat 18 is the horizontal telescopic component of the telescopic arm. It is square in shape and is slidably connected to sliding seat 29. The upper surface fixed block is fixedly connected to the synchronous belt 13. The side wall has a connecting hole for the suction tube 3 to pass through. The bottom surface is fixedly connected to fixed seat 15. Under the drive of synchronous belt 13, it moves along sliding seat 29, driving fixed seat 15 and rake tooth mechanism to extend and retract up and down, expanding the dredging range. It is a key component for realizing horizontal adjustment. Sliding seat 2 9: Sliding seat 2 9 is the vertical lifting component of the telescopic arm. It is a rectangular frame. The sliding strips on both outer sides are connected to the sliding grooves of fixed seat 2 10. The threaded hole on one side is connected to the lead screw 2 11. The top surface is rotatably connected to the pulley 12 and drives the synchronous belt 13. Under the drive of lead screw 2 11, it moves up and down along fixed seat 2 10. At the same time, it drives sliding seat 1 8 to extend and retract through the synchronous belt 13, realizing the depth adjustment of the rake tooth mechanism. It is the transmission structure connecting fixed seat 2 and sliding seat 1. Fixed base 2 10: Fixed base 2 10 is the installation base of the telescopic boom mechanism. It is in the shape of "n". The motor 4 is installed on the top surface of the horizontal plate and the bottom surface is rotatably connected to the lead screw 2 11. The vertical plate has sliding grooves on the opposite side. The horizontal plate and the side wall have connecting holes for the suction tube 3 to pass through. It provides stable support for the motor 4, lead screw 2 11 and sliding base 2 9. The sliding groove restricts the movement trajectory of sliding base 2 9 to ensure the stable operation of the telescopic boom mechanism. It is the core support of the telescopic boom. Lead screw 2 11: Lead screw 2 11 is the transmission component that drives the telescopic boom to lift and lower. It is rotatably connected to the bottom surface of the horizontal plate of fixed base 2 10, and its top end is coaxially fixedly connected to the output shaft of motor 4. It is threadedly connected to the threaded hole of sliding base 2 9. When motor 4 drives it to rotate, it drives sliding base 2 9 to move up and down along the sliding groove of fixed base 2 10, realizing the underwater depth adjustment of the rake tooth mechanism and the suction head. It is the core transmission component for vertical adjustment. Pulley 12: Pulley 12 is a transmission component. Two pulleys 12 are rotatably connected to the top surfaces of the two side frames of the sliding seat 2 9 with threaded holes, and are connected by a synchronous belt 13. One of them is coaxially fixedly connected to the output shaft of the motor 4 on the support frame of the sliding seat 2 9. When the motor 4 drives it to rotate, it drives the sliding seat 1 8 to move through the synchronous belt 13, thereby realizing the vertical extension and retraction transmission of the telescopic arm. Synchronous belt 13: Synchronous belt 13 is a transmission connection component, which is connected between two pulleys 12 and fixedly connected to the fixed block on the sliding seat 8. It rotates under the drive of the pulleys 12 and drives the sliding seat 8 to slide along the sliding seat 9 through the fixed block, thus transmitting the motor power into the vertical movement of the sliding seat 8. Guide rod 14: Guide rod 14 is a guide component for the movement of rake teeth. It is symmetrically fixed between the two support plates of the fixed base 5, corresponding to both sides of the lead screw 6, and slidably connected to the sliding hole of the rake teeth 7. When the rake teeth 7 move with the lead screw 6, it restricts their movement trajectory, prevents the rake teeth 7 from deviating, and ensures the stability and accuracy of the rake tooth spacing adjustment. It is a guide and positioning structure for the movement of rake teeth. Link 15: Link 15 is the connecting component for the linkage of rake teeth. One end is hinged to the hinge shaft of fixed seat 15, and the other end is hinged to link 2 16. When the rake tooth 7 moves with the lead screw 16, it transmits the movement of a single rake tooth to other rake teeth through the cooperation with link 2 16, realizing the synchronous adjustment of the spacing of multiple rake teeth. It is a key connection structure to ensure the linkage of rake teeth. Linkage 2 16: Linkage 2 16 is the linkage component for synchronous adjustment of the rake teeth. Its middle part is hinged to the rotating shaft at the bottom of the rake tooth 7, one end is hinged to the adjacent linkage 2 16, the first end is hinged to linkage 1 15, and the last end is hinged to linkage 3 17. When the lead screw 1 6 drives the rake tooth 7 to move, the synchronous spacing change of all the rake teeth is achieved through the hinged transmission of multiple sets of linkage 2 16, ensuring the consistency of adjustment. It is the core component of the rake tooth linkage. Link 3 17: Link 3 17 is the end connecting component of the rake tooth linkage. One end is hinged to the last link 2 16, and the other end is rotatably connected to the rotating shaft on the last rake tooth 7. Together with link 1 15 and link 2 16, it transmits power to the end rake tooth, ensuring that all rake teeth move synchronously during adjustment and guaranteeing the integrity of the spacing adjustment. It is a key component for perfecting the rake tooth linkage structure.

[0025] Working principle: During operation, the hull 1 provides a stable platform on the water, and the storage box 2 is in a storage state. When it is necessary to adjust the dredging depth, the motor 4 on the fixed seat 2 10 starts and drives the lead screw 2 11 to rotate. Since the threaded hole of the sliding seat 2 9 is threadedly connected to the lead screw 2 11, and the sliding strips on both sides slide along the sliding groove of the fixed seat 2 10, the sliding seat 2 9 will move up and down with the rotation of the lead screw 2 11. Then, the motor 4 on the support frame of the sliding seat 2 9 starts and drives the pulley 12 to rotate, so that the synchronous belt 13 runs. Since the sliding seat 1 8 is fixedly connected to the synchronous belt 13 through the fixed block, and the sliding seat 1 8 is slidably connected to the sliding seat 2 9, the sliding seat 1 8 will move up and down along the sliding seat 2 9 with the movement of the synchronous belt 13, thereby driving the sliding seat 1 8, the fixed seat 1 5 and the rake teeth 7 connected to it to adjust the underwater depth as a whole.

[0026] When adjusting the spacing of the rake teeth 7 to adapt to different silt conditions, the motor 4 on the fixed base 5 drives the lead screw 6 to rotate. The rake teeth 7 are connected to the lead screw 6 through the threaded hole on the side wall, and at the same time, their sliding hole slides along the guide rod 14, so that the rake teeth 7 begin to move under the action of the lead screw 6. At this time, the connecting rod 15 on the hinge shaft of the fixed base 5 rotates accordingly, driving the connecting rod 2 16 that is hinged to it to move. Since the middle part of each connecting rod 2 16 is hinged to the rotation shaft of the corresponding rake tooth 7, and adjacent connecting rods 2 16 are hinged to each other, and the last connecting rod 2 16 is connected to the rotation shaft of the end rake tooth 7 through the connecting rod 3 17, all the rake teeth 7 will adjust their spacing synchronously under the linkage of the connecting rod assembly. The sharp end can adapt to the thickness of the silt and avoid incomplete dredging or excessive disturbance to the riverbed.

[0027] When the dredging operation officially begins, the rake teeth 7, after the spacing is adjusted, are inserted into the silt and loosen it. At the same time, the suction pipe 3 starts working. It passes through the first connection hole of the sliding seat 8, the second connection hole of the sliding seat 9, and the third connection hole of the fixed seat 10. The suction heads on the bottom of the two diversion pipes are located on both sides of the rake teeth 7, which can promptly absorb the silt loosened by the rake teeth 7, reducing the diffusion of silt in the water. The absorbed silt is directly transported to the storage tank 2 through the suction pipe 3 for temporary storage, without the need for frequent docking at the shore for dumping, ensuring the continuity of the operation.

[0028] 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A port and waterway dredging device, characterized in that, include: The hull (1), storage box (2) and suction pipe (3) are fixedly installed in the middle of the hull (1). The storage box (2) is a hollow box structure. Suction pipe (3) is symmetrically fixedly connected to both sides of the storage box (2). Two diversion pipes are installed on the suction pipe (3), and suction heads are fixedly installed on the bottom surface of the two diversion pipes. The suction pipe (3) and the storage box (2) are connected. The hull (1) has symmetrical sliding holes on both sides corresponding to the storage box (2). The bottom surface of the hull (1) is fixedly installed with a second fixed seat (10) next to the sliding holes. The second fixed seat (10) is in the shape of an "n". The top surface of the horizontal plate of the second fixed seat (10) is fixedly installed with a motor (4). The bottom surface of the horizontal plate of the second fixed seat (10) is rotatably connected with a second lead screw (11). The output shaft of the motor (4) and the second lead screw (11) are coaxially fixedly connected. The two vertical plates of the second fixed seat (10) have sliding grooves on their opposite surfaces. The second fixed seat (10) is equipped with a telescopic arm mechanism, which includes a first telescopic arm assembly and a second telescopic arm assembly. The bottom surface of the telescopic arm assembly 2 is fixedly connected to a fixed seat 1 (5). Support plates are symmetrically fixedly installed on the bottom surface of the fixed seat 1 (5) near both sides. A screw rod 1 (6) is rotatably connected between the two support plates. Another motor (4) is fixedly installed on the outer wall of one of the support plates. The output shaft of the motor (4) and the screw rod 1 (6) are coaxially fixedly connected. Guide rods (14) are symmetrically fixedly installed between the two support plates of the fixed seat 1 (5) corresponding to the two sides of the screw rod 1 (6). An adjustable-gap rake tooth mechanism is provided on the fixed seat 1 (5). A hinge shaft is fixedly installed on the plane of the fixed seat (5) near one of the support plates, and sliding holes are symmetrically opened on the plane of the fixed seat (5). The suction tube (3) passes through the telescopic arm mechanism and the adjustable-spacing rake tooth mechanism.

2. The port and waterway dredging device according to claim 1, characterized in that, The telescopic arm assembly includes a motor (4), a sliding seat (9), a pulley (12), and a timing belt (13). The sliding seat (9) is a rectangular frame, and sliding strips are symmetrically fixed on the outer frames of both sides of the sliding seat (9). The sliding strips on the sliding seat (9) are slidably connected to the sliding grooves on the fixed seat (10). One of the outer frames on the other two sides of the sliding seat (9) is provided with a threaded hole, and the other frame is provided with a square sliding hole. The threaded hole on the sliding seat (9) is threadedly connected to the lead screw (11). The top surfaces of the two side frames of the sliding seat 2 (9) with threaded holes are respectively rotatably connected to pulleys (12), and a synchronous belt (13) is connected between the two pulleys (12). A support frame is also fixedly installed on the top surface of one side frame of the sliding seat 2 (9), and another motor (4) is fixedly connected on the support frame. The output shaft of the motor (4) and one of the pulleys (12) are coaxially fixedly connected.

3. A port and waterway dredging device according to claim 2, characterized in that, The telescopic arm assembly 2 includes a sliding seat 1 (8), which is square in shape. The sliding seat 1 (8) and the sliding seat 2 (9) are slidably connected. A fixing block is fixedly installed on the upper surface of the sliding seat 1 (8). The fixing block on the sliding seat 1 (8) is fixedly connected to one of the synchronous belts (13).

4. A port and waterway dredging device according to claim 3, characterized in that, The sliding seat one (8) has a symmetrical connecting hole one that extends to the other side on its side wall. The sliding seat two (9) has a symmetrical connecting hole two on both sides of the threaded hole on its side wall. The fixed seat two (10) has a symmetrical connecting hole three on both sides of the screw two (11). The first connecting hole on the first sliding seat (8), the second connecting hole on the second sliding seat (9), and the third connecting hole on the second fixed seat (10) are all coaxially corresponding.

5. A port and waterway dredging device according to claim 3, characterized in that, The bottom surface of the sliding seat (8) is fixedly connected to the fixed seat (5).

6. A port and waterway dredging device according to claim 5, characterized in that, The adjustable pitch rake tooth mechanism includes rake teeth (7), connecting rod one (15), connecting rod two (16) and connecting rod three (17). A threaded hole is provided in the middle of the side wall of the rake tooth (7). Sliding holes are symmetrically provided on both sides of the side wall of the rake tooth (7) corresponding to the threaded hole. The threaded hole on the rake tooth (7) is threadedly connected to the lead screw one (6). The sliding hole on the rake tooth (7) is slidably connected to the guide rod (14). A rotating shaft is fixedly installed on the bottom surface of the rake tooth (7). A connecting rod 1 (15) is hinged to the hinge shaft of the fixed base 1 (5). A connecting rod 2 (16) is hinged to the other end of the connecting rod 1 (15). The middle part of the connecting rod 2 (16) is hinged to the rotation shaft at the bottom of the rake tooth (7). The other end of the connecting rod 2 (16) is hinged to another connecting rod 2 (16). The middle part of each connecting rod 2 (16) corresponds to the rotation shaft on each rake tooth (7). A connecting rod 3 (17) is hinged to the other end of the last connecting rod 2 (16). The other end of the connecting rod 3 (17) is rotatably connected to the rotation shaft on the last rake tooth (7). One end of the rake teeth (7) is sharp.

7. A port and waterway dredging device according to claim 4, characterized in that, The two branch pipes on the suction pipe (3) correspond to the first connection hole on the first sliding seat (8), the second connection hole on the second sliding seat (9), the third connection hole on the second fixed seat (10), and the connection hole on the first fixed seat (5). The suction head on the suction tube (3) is located on both sides of the rake teeth (7).

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