Soft foundation desilting construction device

Abstract

The invention provides a soft foundation desilting construction device, which relates to the technical field of highway subgrade engineering construction, and comprises a vehicle body, an excavating mechanism, a transferring mechanism and a driving mechanism, a storage hopper is mounted on the vehicle body and comprises a first storage part and a second storage part; the digging mechanism comprises a mounting cylinder, a chain conveyor and a plurality of digging buckets, the chain conveyor is mounted in the mounting cylinder, the digging buckets are mounted on the chain conveyor, each digging bucket is provided with a mud discharge port, an opening and closing plate is rotatably mounted at the mud discharge port, and a screen plate is mounted in each digging bucket; the transferring mechanism comprises a bearing plate, a conveying pipe and a suction pump, the bearing plate is located between the upper side and the lower side of the chain conveyor, a bearing bin is arranged at the bottom end of the bearing plate, one end of the conveying pipe communicates with the bearing bin, and the other end of the conveying pipe extends to the position above the second storage part. And the driving mechanism can drive the opening and closing plate to rotate so as to close or open the sludge discharge port. According to the device, sludge digging and large solid impurity separation can be synchronously carried out.

Description

Technical Field

[0001] This invention relates to the field of highway subgrade engineering construction technology, specifically to a soft soil dredging construction device. Background Technology

[0002] In highway subgrade construction, some sections involve special geological conditions such as ponds, paddy fields, and soft soil areas. The subgrade base in these areas often contains a layer of silt. This silt layer has a high humus content, high compressibility, and poor soil quality, failing to meet the requirements for subgrade bearing capacity and stability. If left untreated, it will directly lead to subgrade settlement and deformation. Therefore, it is essential to remove the silt through dredging and replacement to ensure the quality of the subgrade project.

[0003] Currently, dredging operations in roadbed construction mainly rely on excavators to directly excavate silt. However, in actual construction, the silt to be cleared often contains large solid debris such as stones, plant roots, and discarded components. Existing excavators' buckets only have digging and loading functions and cannot separate the silt from large solid debris during the excavation process, resulting in the silt containing mixed debris being excavated and transported together. After the silt is transported to the spoil heap, manual sorting and separation of large debris is still required to meet environmental disposal requirements. This process is cumbersome, incurs significant additional labor costs, and is inefficient, severely slowing down the overall progress of the dredging operation. Furthermore, for large-scale dredging projects, the inefficiency of manual separation is even more pronounced, and delays may lead to prolonged exposure of the subgrade to rainwater and other natural factors, causing it to soften and further reducing the quality of the roadbed construction.

[0004] Therefore, there is an urgent need to develop a soft soil dredging construction device to simultaneously separate silt from large solid debris during the silt excavation process, thereby ensuring the construction quality and progress of the roadbed project. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention proposes a soft soil dredging construction device to solve the problem that traditional excavators cannot separate silt from large solid debris during the excavation process.

[0006] The objective of this invention is achieved through the following technical solution: The present invention provides a soft soil dredging construction device, comprising a vehicle body, an excavation mechanism, a transfer mechanism and a drive mechanism; The vehicle body is equipped with a storage compartment, which includes a first storage section and a second storage section with independent partitions; The digging mechanism includes an installation cylinder, a chain conveyor, and multiple buckets. The chain conveyor is installed inside the installation cylinder and extends out of both ends of the installation cylinder. The top of the chain conveyor is located above the first storage section. The installation cylinder is installed at an angle on the vehicle body so that the chain conveyor forms upper and lower sides. The multiple buckets are respectively installed on the chain of the chain conveyor, and each bucket has a digging opening facing the direction of chain conveying. The side of the bucket near the chain has a mud discharge port. An opening and closing plate is rotatably installed at the mud discharge port, and a strainer plate is installed inside the bucket to block the mud discharge port. The transfer mechanism includes a receiving plate, a conveying pipe, and a suction pump. The receiving plate is fixed to the mounting cylinder and located between the upper and lower sides of the chain conveyor. A receiving chamber is provided at the bottom end of the receiving plate. One end of the conveying pipe is connected to the receiving chamber, and the other end extends to the top of the second storage section. The suction pump is installed on the conveying pipe. The drive mechanism can drive the opening and closing plate to rotate, so as to close or open the mud discharge port.

[0007] Furthermore, the driving mechanism includes a driving assembly and a guide ring. The guide ring is set along the conveying trajectory of the chain conveyor and installed on the inner wall of the mounting cylinder. The portion of the guide ring located on the upper side of the chain conveyor, passing through the receiving plate area, has a laterally offset variable diameter section. One driving assembly is installed on each bucket. The driving assembly includes a moving part, a transmission column, and a first bevel gear. The first bevel gear is installed on the rotating shaft of the opening and closing plate. The moving part is slidably installed on one side of the bucket in a direction close to or away from the bucket. A sliding buckle and a rack are respectively installed on the moving part. The sliding buckle is slidably sleeved on the guide ring. The transmission column is rotatably installed on the bucket. A second bevel gear and a transmission gear are respectively installed on the transmission column. The second bevel gear meshes with the first bevel gear, and the transmission gear meshes with the rack. When the sliding buckle passes through the variable diameter section, it can drive the opening and closing plate to open the mud discharge port.

[0008] Furthermore, the path of the variable diameter section is a wavy shape that extends laterally in a curved manner.

[0009] Furthermore, the strainer plate is slidably installed on the inner wall of the bucket along the direction close to or away from the digging opening, and an elastic element is connected between the strainer plate and the inner wall of the bucket. The elastic element can provide an elastic force to pull the strainer plate into the bucket. An arc strip is provided on the inner side of the opening and closing plate. The arc strip is centered on the rotation axis of the opening and closing plate, and multiple protruding teeth are distributed on the outer wall of the arc strip. An abutting member is provided at the inner end of the strainer plate to abut against the outer wall of the arc strip.

[0010] Furthermore, a shock-absorbing part is installed on the outer side of the opening and closing plate, and a shock-absorbing head is installed at the far end of the shock-absorbing part that extends beyond the pivot of the opening and closing plate. When the opening and closing plate is open, the shock-absorbing head can collide with the side of the bucket away from the digging opening.

[0011] Furthermore, the shock-absorbing part is rotatably connected to the opening and closing plate, and a torsion spring is installed at the rotatable connection between the shock-absorbing part and the opening and closing plate. The torsion spring can provide an elastic force to push the shock-absorbing part against the side of the opening and closing plate's pivot.

[0012] Furthermore, a mounting base is installed on the vehicle body, the mounting cylinder is slidably connected to the mounting base, a hydraulic cylinder is installed on the mounting base, and the telescopic shaft end of the hydraulic cylinder is fixed to the mounting cylinder.

[0013] Furthermore, the inner walls of the bucket are provided with arc-shaped walls at the ends near the mud discharge port on both sides.

[0014] Furthermore, the bucket is provided with a thin-walled cutting section at the edge of the digging opening.

[0015] Furthermore, side baffles are provided on both sides of the receiving plate, and the width of the receiving plate is greater than the width of the sludge discharge port.

[0016] As can be seen from the above technical solution, the present invention provides a soft soil dredging construction device: 1. When the bucket moves with the chain to the lower side of the chain conveyor, the digging opening faces the silt layer. When the bucket reaches the bottom of the chain conveyor, under the driving force of the chain conveyor, the bucket digs out the silt through the digging opening. At this time, the drive mechanism controls the opening and closing plate to be in the closed state to prevent silt from leaking from the discharge port during the digging process. After digging out the silt, the bucket moves with the chain to the upper side of the mounting cylinder. When it moves to the area above the receiving plate, the drive mechanism drives the opening and closing plate to open the discharge port. The silt in the bucket falls onto the receiving plate through the mesh of the screen plate under the action of gravity, and then collects in the receiving bin. Stones and plants... Large solid debris such as roots, stems, and discarded components are blocked inside the bucket by the strainer plate. When the bucket leaves the area above the receiving plate, the drive mechanism drives the opening and closing plate to close the mud discharge port. Under the negative pressure of the suction pump, the sludge in the receiving bin is transported to the second storage section through the conveyor pipe. Meanwhile, the bucket continues to move with the chain to the top of the chain conveyor and then flips over. The large solid debris blocked by the strainer plate falls into the first storage section under the action of gravity. This achieves the simultaneous sludge excavation and separation of large solid debris, solving the problem that traditional excavator buckets can only dig and load but cannot separate debris. 2. When the bucket has not reached the area above the receiving plate, the sliding buckle is in the normal section of the guide ring. At this time, the moving part remains relatively stable, the transmission components have no relative movement, and the opening and closing plate is in the closed mud discharge port state. When the bucket moves to the area above the receiving plate, the sliding buckle enters the variable diameter section of the guide ring. Due to the lateral offset of the variable diameter section, a lateral thrust or pull force is generated on the sliding buckle, which in turn drives the moving part to slide. The rack moves synchronously, driving the transmission gear meshing with it to rotate. The transmission gear drives the transmission column to rotate, which in turn causes the second bevel gear mounted on the transmission column to drive the first bevel gear to rotate. The first bevel gear drives the opening and closing plate to rotate. The shaft rotates, ultimately opening the sludge discharge port of the opening and closing plate. When the bucket continues to move, the sliding buckle disengages from the variable diameter section and returns to the regular section of the guide ring. The moving part resets and drives the opening and closing plate to rotate in the opposite direction through gear transmission, thereby closing the sludge discharge port. Through the cooperation of the guide ring and the drive assembly, the opening and closing plate is automatically controlled. The opening and closing plate can be driven by the trajectory of the bucket moving with the chain conveyor. The variable diameter section can precisely control the opening and closing plate to open in the area above the receiving plate, ensuring that the sludge separation operation is carried out in the designated position, improving the accuracy and reliability of the separation, and further optimizing the automation and efficiency of the dredging operation. 3. As the opening and closing plate swings back and forth under the action of the wave-shaped variable diameter section, the arc strip also rotates back and forth synchronously. The protrusions on its outer wall will repeatedly contact the abutment at the inner end of the screen plate. The protrusions can generate an outward sliding force on the screen plate through the abutment. When the arc strip rotates and the abutment is located in the gap between two adjacent protrusions, the tension of the elastic element will pull the screen plate back to its original position. As the opening and closing plate continues to swing, the protrusions of the arc strip continuously interact with the abutment, allowing the screen plate to slide back and forth along the inner wall of the bucket, thereby generating continuous vibration. This can quickly shake off the silt and water adhering to the surface of the screen plate and around the mesh, avoid mesh blockage, and ensure continuous and efficient separation operation. 4. When the drive mechanism drives the opening and closing plate to rotate and open, the opening and closing plate drives the vibration head to rotate synchronously, causing the vibration head to hit the outer wall of the bucket, generating impact force and vibration, which is evenly transmitted to the inner wall of the bucket. This can shake off the stubborn silt attached to the inner wall of the bucket, ensuring that the silt is discharged smoothly. In conjunction with the reciprocating swing of the opening and closing plate under the action of the wave-shaped variable diameter section, it can drive the vibration head to continuously hit the outer wall of the bucket, forming a continuous impact, which can more thoroughly shake off the stubborn silt in the bucket, effectively solving the problem of silt residue on the inner wall of the bucket. The impact of the vibration head can be superimposed with the vibration of the screen plate to form a double vibration effect, significantly improving the cleaning intensity and range, further optimizing the separation purity, and avoiding the waste of bucket capacity due to silt residue. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the excavation mechanism of the present invention with the upper mounting cylinder removed. Figure 3 This is a three-dimensional structural diagram of the bottom of the excavation mechanism in this invention; Figure 4 This is a cross-sectional view of the main structural schematic diagram of the excavation mechanism in this invention; Figure 5 This is a schematic diagram of the transition from the guide ring to the variable diameter section in this invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the bucket in this invention. Figure 1 ; Figure 7 This is a schematic diagram of the three-dimensional structure of the bucket in this invention. Figure 2 ; Figure 8 for Figure 7 A magnified view of a section at point A in the middle; Figure 9 This is a three-dimensional structural diagram of the mesh plate in this invention; Figure label: Vehicle body 1, storage bin 11, first storage section 111, second storage section 112, mounting base 12, hydraulic cylinder 121; Digging mechanism 2, mounting cylinder 21, chain conveyor 22, bucket 23, digging opening 231, mud discharge opening 232, opening and closing plate 233, arc strip 2331, vibration part 2332, vibration head 2333, mesh plate 234, elastic element 2341, abutting part 2342, arc wall 235, thin wall cutting part 236; Transfer mechanism 3, receiving plate 31, receiving bin 311, side baffle 312, conveying pipe 32, suction pump 33; Drive mechanism 4, drive assembly 41, moving part 411, sliding buckle 4111, rack 4112, transmission column 412, second bevel gear 4121, transmission gear 4122, first bevel gear 413, guide ring 42, and variable diameter part 421. Detailed Implementation

[0019] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0020] like Figure 1-9 As shown in the figure, the soft soil dredging construction device provided in this embodiment includes a vehicle body 1, an excavation mechanism 2, a transfer mechanism 3 and a drive mechanism 4.

[0021] The vehicle body 1 can be a tracked chassis to prevent it from sinking on soft ground, ensuring the stability of the device's movement and construction safety. A storage hopper 11 is installed on the vehicle body 1. The storage hopper 11 includes a first storage section 111 and a second storage section 112, each with independent compartments, for storing separated large solid debris and silt, respectively. Figure 1 As shown, in one embodiment, the storage hopper 11 is an integrated box structure installed in the middle or rear area of ​​the vehicle body 1, and the interior of the box is physically divided by vertically or inclined partitions. In another embodiment (not shown), the first storage section 111 and the second storage section 112 are two completely independent box structures, each equipped with an independent hydraulic tilting system. The two boxes are tilted by hydraulic tilting, allowing them to be emptied separately without interference, which is suitable for situations where the capacity of sludge and solid debris is uneven.

[0022] The digging mechanism 2 includes an installation cylinder 21, a chain conveyor 22, and multiple buckets 23. The chain conveyor 22 is installed inside the installation cylinder 21 and extends out of both ends of the installation cylinder 21. The top of the chain conveyor 22 is located above the first storage section 111. The installation cylinder 21 is installed at an angle on the vehicle body 1 so that the chain conveyor 22 forms upper and lower sides. The multiple buckets 23 are respectively installed on the chain of the chain conveyor 22, and the buckets 23 have digging openings 231 facing the direction of chain conveying. Preferably, the bucket 23 has a thin-walled cutting section 236 at the edge of the digging opening 231. When the bucket 23 moves to the silt layer with the chain conveyor 22, the thin-walled cutting section 236 at the edge of the digging opening 231 contacts the silt first. Under the driving force of the chain conveyor 22, the thin-walled cutting section 236 cuts the silt with its sharp edge, and at the same time cuts plant roots, small clumps, etc. mixed in the silt. The cut silt and broken debris are more easily put into the bucket 23, reducing the resistance of the bucket 23 during digging and making the digging process smoother. The bucket 23 has a mud discharge port 232 on the side near the chain. An opening and closing plate 233 is rotatably installed at the mud discharge port 232, and a mesh plate 234 is installed inside the bucket 23 to block the mud discharge port 232. It should be noted that the opening and closing plate 233 is rotatably installed on the bucket 23 via a rotating shaft.

[0023] Specifically, a mounting base 12 is installed on the vehicle body 1, and a mounting cylinder 21 is slidably connected to the mounting base 12. A hydraulic cylinder 121 is installed on the mounting base 12, and the telescopic shaft end of the hydraulic cylinder 121 is fixed to the mounting cylinder 21. During dredging operations, the telescopic range of the hydraulic cylinder 121 can be adjusted according to the thickness and depth of the silt layer in the dredging area and the construction requirements, thereby achieving flexible adjustment of the digging depth. This allows the device to adapt to the dredging needs of silt layers of different thicknesses and depths, improving the versatility and applicability of the device.

[0024] Preferably, the inner wall of the bucket 23 has a circular arc wall 235 on both sides near the mud discharge port 232. When the bucket 23 dredges silt, the silt accumulates inside the bucket. When the opening and closing plate 233 is opened to discharge silt, the silt inside the bucket 23 flows towards the mud discharge port 232 under the action of gravity. Since the circular arc wall 235 has no sharp edges and a smooth transition, it can guide the silt to converge smoothly towards the mud discharge port 232, avoiding the accumulation of silt in the corners or sharp edges of the inner wall of the bucket.

[0025] It should be noted that the chain conveyor 22 uses two parallel chains spaced apart. The two chains are driven synchronously and the spacing is adapted to the width of the bucket 23. The width of the sludge discharge port 232 does not exceed the spacing between the two chains, so as to avoid the chains from obstructing or interfering with the discharge of sludge.

[0026] The transfer mechanism 3 includes a receiving plate 31, a conveying pipe 32, and a suction pump 33. The receiving plate 31 is fixed to the mounting cylinder 21 and located between the upper and lower sides of the chain conveyor 22. A receiving chamber 311 is provided at the bottom of the receiving plate 31. One end of the conveying pipe 32 is connected to the receiving chamber 311, and the other end extends to the top of the second storage section 112. The suction pump 33 is installed on the conveying pipe 32.

[0027] Preferably, side baffles 312 are provided on both sides of the receiving plate 31 to effectively prevent sludge from overflowing from both sides of the receiving plate 31, and the width of the receiving plate 31 is greater than the width of the sludge discharge port 232 to ensure that the receiving plate 31 completely covers the area below the sludge discharge port 232.

[0028] The drive mechanism 4 can drive the opening and closing plate 233 to rotate, so as to close or open the mud discharge port 232.

[0029] During dredging operations, the chain conveyor 22 is started, and the chain synchronously drives multiple buckets 23 to move in a circular motion along the conveying track. When the buckets 23 move with the chain to the underside of the chain conveyor 22, the digging openings 231 face the silt layer. When the buckets 23 reach the bottom of the chain conveyor 22, under the driving force of the chain conveyor 22, the buckets 23 dig out the silt through the digging openings 231. At this time, the drive mechanism 4 controls the opening and closing plate 233 to be in the closed state to prevent silt from leaking from the discharge port 232 during the dredging process. After dredging the silt, the bucket 23 moves with the chain to the upper side of the mounting cylinder 21. When it reaches the area above the receiving plate 31, the drive mechanism 4 drives the opening and closing plate 233 to open the sludge discharge port 232. The silt in the bucket 23 falls onto the receiving plate 31 through the mesh of the strainer plate 234 under the action of gravity, and then collects in the receiving bin 311. Large solid debris such as stones, plant roots, and waste components are blocked by the strainer plate 234 inside the bucket 23. When the bucket 23 leaves the area above the receiving plate 31, the drive mechanism 4 drives the opening and closing plate 233 to close the sludge discharge port 232. Under the negative pressure of the suction pump 33, the silt in the receiving bin 311 is transported through the conveying pipe 32 to the second storage section 112 for storage. Meanwhile, the bucket 23 continues to move with the chain to the top of the chain conveyor 22 and then flips over. Large pieces of solid debris blocked by the strainer plate 234 fall into the first storage section 111 for storage under gravity. When the bucket 23 returns to the bottom of the chain conveyor 22, the next cycle of dredging operation begins.

[0030] This invention, by setting up independently partitioned first and second storage sections 111 and 112, in conjunction with the excavation mechanism 2, transfer mechanism 3, and drive mechanism 4, achieves simultaneous sludge excavation and separation of large solid debris, solving the problem that traditional excavator buckets can only excavate and load, but cannot separate debris. It eliminates the need for additional manual sorting at the spoil heap, significantly reducing labor costs, simplifying the dredging process, effectively improving the overall progress of dredging operations, and preventing the foundation from being softened by rainwater due to prolonged exposure caused by construction delays, thus ensuring the quality of roadbed construction.

[0031] The chain of the chain conveyor 22 may become loose, causing the bucket 23 underneath it to sink. Therefore, it is important to ensure that there is sufficient distance between the bottom inner wall of the mounting cylinder 21 and the bucket 23 under the chain conveyor 22 to prevent the bucket 23 from colliding with the mounting cylinder 21. Alternatively, a guide plate can be installed at the top of the bottom side of the mounting cylinder 21 to ensure that the bucket 23 can smoothly enter the mounting cylinder 21.

[0032] Specifically, the drive mechanism 4 includes a drive assembly 41 and a guide ring 42. The guide ring 42 is arranged along the conveying trajectory of the chain conveyor 22 and installed on the inner wall of the mounting cylinder 21. The portion of the guide ring 42 located on the upper side of the chain conveyor 22, passing through the area of ​​the receiving plate 31, has a laterally offset variable diameter portion 421, such that the distance from the variable diameter portion 421 to the bucket 23 is inconsistent with the distance from the rest of the guide ring 42 to the bucket 23. One drive assembly 41 is installed on each bucket 23. The drive assembly 41 includes a moving part 411, a transmission column 412, and a first bevel gear 413. The first bevel gear 413 is mounted on the rotating shaft of the opening and closing plate 233. The moving part 411 is slidably installed on one side of the bucket 23 in a direction close to or away from the bucket 23. Specifically, the side wall of the bucket 23 is provided with multiple columns, and the moving part 411 slides through these columns. The moving part 411 is equipped with a sliding buckle 4111 and a rack 4112. The sliding buckle 4111 is slidably mounted on the guide ring 42. The transmission column 412 is rotatably mounted on the bucket 23. The transmission column 412 is equipped with a second bevel gear 4121 and a transmission gear 4122. The second bevel gear 4121 meshes with the first bevel gear 413, and the transmission gear 4122 meshes with the rack 4112. When the bucket 23 moves with the chain conveyor 22, the sliding buckle 4111 on the moving part 411 slides synchronously along the trajectory of the guide ring 42. When the bucket 23 has not reached the area above the receiving plate 311, the sliding buckle 4111 is in the normal section of the guide ring 42. At this time, the moving part 411 remains relatively stable, the transmission components have no relative movement, and the opening and closing plate 233 is in the closed mud discharge port 232 state. When the bucket 23 moves to the area above the receiving plate 31, the sliding buckle 4111 enters the variable diameter part 421 of the guide ring 42. Due to the lateral offset of the variable diameter part 421, a lateral pushing or pulling force is generated on the sliding buckle 4111, which in turn drives the moving part 411 to slide. The rack 4112 moves synchronously, driving it to move. The meshing transmission gear 4122 rotates, driving the transmission column 412 to rotate. This, in turn, causes the second bevel gear 4121 mounted on the transmission column 412 to drive the first bevel gear 413 to rotate. The first bevel gear 413 then drives the shaft of the opening and closing plate 233 to rotate, ultimately opening the mud discharge port 232. When the bucket 23 continues to move, the sliding buckle 4111 disengages from the variable diameter section 421 and returns to the normal section of the guide ring 42. The moving part 411 resets and drives the opening and closing plate 233 to rotate in the opposite direction via gear transmission, thereby closing the mud discharge port 232. Through the cooperation of the guide ring 42 and the drive assembly 41, automatic control of the opening and closing plate 233 is achieved. No additional independent power source is required; the opening and closing of the opening and closing plate 233 can be driven solely by the trajectory of the bucket 23 moving with the chain conveyor 22. The variable diameter section 421 can precisely control the opening and closing plate 233 in the area above the receiving plate 31, ensuring that the sludge separation operation is carried out in the designated position, improving the accuracy and reliability of the separation, and further optimizing the automation and efficiency of the dredging operation.

[0033] It should be noted that the guide ring 42 is mounted on the inner wall of the mounting cylinder by multiple connecting plates, and the slide buckle 4111 has a notch for these connecting plates to pass through, so as to avoid these connecting plates interfering with the movement of the slide buckle 4111.

[0034] Preferably, the path of the variable diameter section 421 is a wavy shape extending laterally. When the sliding buckle 4111 enters the wavy variable diameter section 421, the wavy path will cause the sliding buckle 4111 to move continuously laterally back and forth, thereby driving the moving part 411 to slide continuously back and forth. Then, through various transmission components, the opening and closing plate 233 is driven to swing back and forth in a small amplitude in the open state, which can effectively promote the rapid and smooth discharge of sludge.

[0035] Furthermore, the strainer plate 234 is slidably installed on the inner wall of the bucket 23 along the direction of approaching or away from the digging opening 231, and an elastic element 2341 is connected between the strainer plate 234 and the inner wall of the bucket 23. The elastic element 2341 can be a spring. The elastic element 2341 can provide an elastic force to pull the strainer plate 234 into the bucket 23. The inner side of the opening and closing plate 233 is provided with an arc strip 2331. The arc strip 2331 is centered on the rotation axis of the opening and closing plate 233, and the outer wall of the arc strip 2331 is distributed with multiple protruding teeth. The inner end of the strainer plate 234 is provided with an abutting element 2342 that abuts against the outer wall of the arc strip 2331. As the opening and closing plate 233 oscillates back and forth under the action of the wave-shaped variable diameter section 421, the arc strip 2331 also rotates back and forth synchronously. The protrusions on its outer wall repeatedly contact the abutment 2342 at the inner end of the screen plate 234. The protrusions can generate an outward sliding force on the screen plate 234 through the abutment 2342. When the arc strip 2331 rotates and the abutment 2342 is located in the gap between two adjacent protrusions, the tension of the elastic element 2341 will pull the screen plate 234 back to its original position. As the opening and closing plate 233 continues to oscillate, the protrusions of the arc strip 2331 continuously interact with the abutment 2342, so that the screen plate 234 can slide back and forth along the inner wall of the bucket 23, thereby generating continuous vibration. This can quickly shake off the silt and water attached to the surface of the screen plate 234 and around the mesh, avoid mesh blockage, and ensure continuous and efficient separation operation.

[0036] Preferably, a shocking part 2332 is installed on the outer side of the opening and closing plate 233. The far end of the shocking part 2332 extends beyond the pivot of the opening and closing plate 233 and is equipped with a shocking head 2333. When the opening and closing plate 233 is open, the shocking head 2333 can collide with the side of the bucket 23 away from the digging opening 231. When the drive mechanism 4 drives the opening and closing plate 233 to rotate and open, the opening and closing plate 233 drives the shock-absorbing part 2332 to rotate synchronously, causing the shock-absorbing head 2333 to impact the outer wall of the bucket 23, generating impact force and vibration. This force is evenly transmitted to the inner wall of the bucket 23, shaking off stubborn sludge adhering to the inner wall of the bucket 23, ensuring smooth discharge of sludge. Combined with the reciprocating swing of the opening and closing plate 233 under the action of the wave-shaped variable diameter part 421, the shock-absorbing head 2333 can continuously collide with the outer wall of the bucket 23, forming continuous impacts, which can more thoroughly shake off stubborn sludge inside the bucket 23, effectively solving the problem of sludge residue on the inner wall of the bucket 23. The impact of the shock-absorbing head 2333 can be superimposed with the vibration of the strainer plate 234, forming a dual vibration effect, significantly improving the cleaning intensity and range, further optimizing separation purity, and avoiding waste of bucket 23 capacity due to sludge residue.

[0037] Furthermore, the shock-absorbing part 2332 is rotatably connected to the opening and closing plate 233, and a torsion spring (not shown) is installed at the rotatable connection between the shock-absorbing part 2332 and the opening and closing plate 233. The torsion spring provides an elastic force that pushes the shock-absorbing part 2332 against the rotating shaft side of the opening and closing plate 233. When the shock-absorbing head 2333 impacts the bucket 23, the reaction force generated by the bucket 23 on the shock-absorbing head 2333 causes the torsion spring to further store force. Subsequently, the torsion spring quickly releases its elastic force, significantly increasing the collision frequency between the shock-absorbing head 2333 and the bucket 23. With the elastic reciprocating motion of the torsion spring and the continuous oscillation of the opening and closing plate 233, the shock-absorbing part 2332 forms a high-frequency reciprocating motion, and the shock-absorbing head 2333 achieves continuous high-frequency multiple impacts, forming a more concentrated vibration effect and making the sludge separation more thorough.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A soft soil foundation dredging construction device, characterized in that, Includes the vehicle body, excavation mechanism, transfer mechanism, and drive mechanism; The vehicle body is equipped with a storage compartment, which includes a first storage section and a second storage section with independent partitions; The digging mechanism includes an installation cylinder, a chain conveyor, and multiple buckets. The chain conveyor is installed inside the installation cylinder and extends out of both ends of the installation cylinder. The top of the chain conveyor is located above the first storage section. The installation cylinder is installed at an angle on the vehicle body so that the chain conveyor forms upper and lower sides. The multiple buckets are respectively installed on the chain of the chain conveyor, and each bucket has a digging opening facing the direction of chain conveying. The side of the bucket near the chain has a mud discharge port. An opening and closing plate is rotatably installed at the mud discharge port, and a strainer plate is installed inside the bucket to block the mud discharge port. The transfer mechanism includes a receiving plate, a conveying pipe, and a suction pump. The receiving plate is fixed to the mounting cylinder and located between the upper and lower sides of the chain conveyor. A receiving chamber is provided at the bottom end of the receiving plate. One end of the conveying pipe is connected to the receiving chamber, and the other end extends to the top of the second storage section. The suction pump is installed on the conveying pipe. The drive mechanism can drive the opening and closing plate to rotate, so as to close or open the mud discharge port.

2. The soft soil dredging construction device according to claim 1, characterized in that, The driving mechanism includes a driving assembly and a guide ring. The guide ring is set along the conveying trajectory of the chain conveyor and installed on the inner wall of the mounting cylinder. The portion of the guide ring located on the upper side of the chain conveyor, passing through the receiving plate area, has a laterally offset variable diameter section. One driving assembly is installed on each bucket. The driving assembly includes a moving part, a transmission column, and a first bevel gear. The first bevel gear is installed on the rotating shaft of the opening and closing plate. The moving part is slidably installed on one side of the bucket in a direction close to or away from the bucket. A sliding buckle and a rack are respectively installed on the moving part. The sliding buckle is slidably sleeved on the guide ring. The transmission column is rotatably installed on the bucket. A second bevel gear and a transmission gear are respectively installed on the transmission column. The second bevel gear meshes with the first bevel gear, and the transmission gear meshes with the rack. When the sliding buckle passes through the variable diameter section, it can drive the opening and closing plate to open the mud discharge port.

3. The soft soil dredging construction device according to claim 2, characterized in that, The path of the variable diameter section is a wavy shape that extends laterally.

4. The soft soil dredging construction device according to claim 3, characterized in that, The strainer plate is slidably installed on the inner wall of the bucket along the direction close to or away from the digging opening, and an elastic element is connected between the strainer plate and the inner wall of the bucket. The elastic element can provide an elastic force to pull the strainer plate into the bucket. The inner side of the opening and closing plate is provided with an arc strip with the rotation axis of the opening and closing plate as the center. The outer wall of the arc strip is provided with multiple protruding teeth. The inner end of the strainer plate is provided with an abutting member that abuts against the outer wall of the arc strip.

5. The soft soil dredging construction device according to claim 3, characterized in that, A shock-absorbing part is installed on the outer side of the opening and closing plate. The far end of the shock-absorbing part extends beyond the pivot of the opening and closing plate and is equipped with a shock-absorbing head. When the opening and closing plate is open, the shock-absorbing head can collide with the side of the bucket away from the digging opening.

6. The soft soil dredging construction device according to claim 5, characterized in that, The shock-absorbing part is rotatably connected to the opening and closing plate, and a torsion spring is installed at the rotatable connection between the shock-absorbing part and the opening and closing plate. The torsion spring can provide an elastic force to push the shock-absorbing part against the side of the opening and closing plate's pivot.

7. The soft soil dredging construction device according to claim 1, characterized in that, A mounting base is installed on the vehicle body, and the mounting cylinder is slidably connected to the mounting base. A hydraulic cylinder is installed on the mounting base, and the telescopic shaft end of the hydraulic cylinder is fixed to the mounting cylinder.

8. The soft soil dredging construction device according to claim 1, characterized in that, The inner walls of the bucket are provided with arc-shaped walls on both sides near the mud discharge port.

9. A soft soil foundation dredging construction device according to claim 1, characterized in that, The bucket has a thin-walled cutting section located at the edge of the digging opening.

10. A soft soil foundation dredging construction device according to claim 1, characterized in that, Side baffles are provided on both sides of the receiving plate, and the width of the receiving plate is greater than the width of the sludge discharge port.

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