A pre-buried excavation device for pipelines used in water conservancy construction and an excavation method thereof

Abstract

The present invention discloses a pre-buried excavation device for pipelines for water conservancy construction and an excavation method thereof, which relates to the technical field of water conservancy construction, and includes two grounded movable rails, an excavation roller and a gantry. The pre-buried excavation device for pipelines for water conservancy construction and an excavation method thereof disclosed by the present invention have the following characteristics: when excavating a pre-buried channel, after the excavation blades complete the initial deep excavation, the hydraulic cylinder is adjusted to drive the inner fitting arc plate to move to the bottom of the channel, so that the dislocated pressing teeth perform dislocated extrusion on the soil at the bottom of the channel, thereby strengthening the soil density at the bottom of the channel, and then the forward and reverse motor is started, and the forward and reverse motor drives the first impact arc plate and the second impact arc plate on the outer side of the rotating shaft to respectively impact the fitting extrusion plate at the opening and the side wall pressure plate, thereby realizing the compaction of the soil at the channel opening and the inner side wall soil, completing the overall compaction of the soil at the entire channel, and avoiding the effect of soil collapse causing the height of the channel bottom to rise.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy construction, and in particular to a pipeline pre-buried excavation device for water conservancy construction and an excavation method thereof. Background Art

[0002] Water conservancy projects are a general term for various engineering projects built to control, utilize and protect surface and underground water resources and the environment; they are projects built to eliminate water disasters and develop and utilize water resources. According to their service objects, they are divided into flood control projects, farmland water conservancy projects, hydropower projects, waterway and port projects, water supply and drainage projects, environmental water conservancy projects, and sea reclamation projects. During the water conservancy construction process, when pre-buried pipelines are carried out, it is necessary to use excavation equipment to dig the pre-buried pipeline channel.

[0003] During use of the existing pre-buried pipe excavation device for water conservancy construction, after the soil is excavated by the excavation component, part of the soil is taken away from the pre-buried channel during the excavation process, and part of the soil is retained in the pre-buried channel, which requires staff to clean it up later, resulting in increased labor input. At the same time, the soil on both sides of the pre-buried channel after excavation is in a relatively loose state, which is prone to soil collapse and sliding on both sides when the pipeline is pre-buried, which will cause the bottom of the pre-buried channel to be lifted, and a large amount of labor needs to be invested again to repair it to avoid errors in the pre-buried pipeline. Therefore, the use value of the excavation device is low. Summary of the invention

[0004] The invention discloses a pre-buried pipeline excavation device for water conservancy construction, aiming to solve the problem that during use of the existing pre-buried pipeline excavation device for water conservancy construction, after the soil is excavated by an excavation component, part of the soil is taken away from the pre-buried channel during the excavation process, and part of the soil is retained in the pre-buried channel, which requires staff to clean it up later, resulting in increased labor input. At the same time, the soil on both sides of the pre-buried channel after the excavation is in a relatively loose state, which is prone to the soil collapse and sliding on both sides when the pipeline is pre-buried, which will cause the bottom of the pre-buried channel to be lifted, and a large amount of labor needs to be invested again to repair it, thereby avoiding technical problems such as errors in pre-buried pipelines.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A pre-buried excavation device for pipelines for water conservancy construction, comprising two grounded moving rails, an excavation roller and a gantry, wherein the interior of the gantry is fixedly connected to two inner frames, and the two inner frames are provided with a same pressing and molding component, wherein the pressing and molding component comprises an inner fitting arc plate, and the outer side of the inner fitting arc plate is connected to two side wall pressure plates through a hinge, and the outer sides of the two side wall pressure plates are both connected to an opening fitting extrusion plate through a hinge, and the outer side of the inner fitting arc plate facing downward is fixedly connected to staggered pressing teeth at equal distances, and the inner side of the inner fitting arc plate is fixedly connected to There are four shaft plates, two of which are fixedly connected to a forward and reverse motor on the same side, the output shaft of the forward and reverse motor is fixedly connected to a rotating shaft through a coupling, the other end of the rotating shaft is connected to the outer side of the other shaft plates through a bearing, the outer side of the rotating shaft is fixedly connected to a No. 1 impact arc plate and a No. 2 impact arc plate, the outer sides of the two inner frames are fixedly connected to the same connecting plate, and a hydraulic cylinder 1 is fixedly connected to the bottom of the connecting plate at an equal distance, the output ends of the multiple hydraulic cylinders 1 are fixedly connected to the same lifting plate, and the lifting plate is fixedly connected to the outer sides of the two shaft plates.

[0007] By providing a pressing molding component, when excavating the pre-buried channel, after the excavating blade completes the initial deep excavation, the hydraulic cylinder is adjusted to drive the inner fitting arc plate to move to the bottom of the channel, so that the offset pressure teeth perform offset extrusion on the soil at the bottom of the channel, thereby strengthening the soil density at the bottom of the channel, and then the forward and reverse motors are started. After the forward and reverse motors drive the No. 1 impact arc plate outside the rotating shaft to fit the extrusion plate at the opening to impact, the soil at the channel opening is gradually compacted under the action of extrusion and impact. At this time, the forward and reverse motors reverse to drive the No. 2 impact arc plate to impact the side wall pressure plate, thereby realizing the compaction of the soil on the inner side wall of the channel, completing the overall compaction of the soil at the entire channel, avoiding soil collapse and causing the bottom of the channel to rise in height. This operation method avoids malfunctions when pre-buried pipelines and improves the use value of the excavation device.

[0008] In a preferred solution, the interiors of the two grounded movable rails are slidably connected with movable sliders, and the gantry is fixedly connected to the tops of the two movable sliders, the tops of the two grounded movable rails are fixedly connected to the same mounting plate, the side of the mounting plate facing the two movable sliders is fixedly connected to a cylinder, and the output ends of the two cylinders are respectively fixedly connected to one side of the two movable sliders.

[0009] In a preferred solution, lifting grooves are provided on the outer sides of the two inner frames, and shaft blocks are slidably connected inside the two lifting grooves, hydraulic cylinder three is fixedly connected to the tops of the two inner frames, and the output ends of hydraulic cylinder three are fixedly connected to the tops of the shaft blocks, one side of one of the shaft blocks is fixedly connected to a driving motor, and the output shaft of the driving motor is fixedly connected to the driving shaft through a coupling, the excavating roller is fixedly connected to the outer side of the driving shaft, the outer side of the excavating roller is annularly distributed with excavating blades, and the outer side of the excavating roller is annularly distributed with cutting rods.

[0010] In a preferred solution, a soil removal assembly is provided on the outer side of one of the shaft blocks, and the soil removal assembly includes a collecting frame, one side of the collecting frame is fixedly connected to a mounting frame, and the mounting frame is fixedly connected to the outer side of the shaft block.

[0011] In a preferred solution, a guide hole is opened at the bottom of the collection frame, and two sliding frames are fixedly connected to the inner wall of the guide hole. The two sliding frames are symmetrically distributed around the center point of the guide hole. The unloading ends of the two sliding frames are located on the outside of two grounded movable rails, and a dust collection box is fixedly connected to the outside of one of the sliding frames.

[0012] In a preferred solution, the collecting frame is fixedly connected to the inside of the excavating roller with a semicircular hollow adsorption cover, and the semicircular hollow adsorption cover is provided with adsorption holes at equal distances on the outside of the excavating blade. The collecting frame is located on the outside of the semicircular hollow adsorption cover and is fixedly connected to an isolation mesh plate. The outside of the collecting frame is fixedly connected to a pump rack, and the top of the pump rack is fixedly connected to a high-pressure adsorption pump. The adsorption end of the high-pressure adsorption pump is connected to the inside of the semicircular hollow adsorption cover through a pipeline, and the delivery end of the high-pressure adsorption pump is fixedly connected to a dust conveying pipe, and the other end of the dust conveying pipe is fixedly connected to the inside of the dust collecting box.

[0013] By providing a soil carrying away component, when the soil is excavated by the excavating blades on the outer side of the excavating roller, when the excavating blades drive the soil to the collecting frame, part of the soil falls directly into the collecting frame, and then falls into the two sliding frames below along the isolating mesh plate, and the high-pressure adsorption pump is started. The high-pressure adsorption pump adsorbs the remaining soil through the adsorption holes on the outer side of the semicircular hollow adsorption cover, so that the remaining soil falls into the collecting frame, and the isolating mesh plate guides it downward to prevent large pieces of soil from being adsorbed into the dust conveying pipe and causing blockage of the dust conveying pipe. The dust carried in the soil is transported to the dust collecting box through the dust conveying pipe to prevent it from causing environmental pollution. The soil is carried away during the channel excavation process, and there is no need for the staff to clean the soil afterwards, which further improves the use value of the excavation device.

[0014] In a preferred solution, an embedded soaking assembly is provided on the gantry, and the embedded soaking assembly includes a water tank and an inclined frame, the inclined frame is fixedly connected to the outside of the gantry, and the water tank is fixedly connected to the top of the gantry.

[0015] In a preferred solution, an operating frame is fixedly connected to the outer side of the inclined frame, and two hydraulic cylinders 2 are fixedly connected to the top of the operating frame, the output ends of the two hydraulic cylinders 2 are fixedly connected to the same hollow connecting plate, and docking holes are opened at equal distances on the bottom of the hollow connecting plate, and a connecting pipe is fixedly connected to the inside of each docking hole.

[0016] In a preferred solution, a water pump is fixedly connected to the top of the water tank, and the water inlet end of the water pump is connected to the inside of the water tank through a pipe, the water delivery end of the water pump is fixedly connected to a water delivery pipe, and the other end of the water delivery pipe is fixedly connected to the inside of the hollow connecting plate, and a water outlet sleeve is fixedly connected to the outside of each connecting pipe, and an embedded drill rod is fixedly connected to the bottom of the water outlet sleeve, and a compressed soil layer is distributed in an annular shape on the outside of the embedded drill rod near the bottom end, and a water hole is opened in an annular shape at the bottom of the water outlet sleeve located on the outside of the embedded drill rod.

[0017] By providing an embedded wetting component, before the pre-buried channel excavation operation is carried out, the hydraulic cylinder 2 is adjusted to drive the embedded drill rod to be pressed into the soil at the excavation location. When the embedded drill rod is pressed down, the soil pressing layer squeezes the soil it presses down, so that after the embedded drill rod is pressed down to the maximum extent, small space channels exist above each soil pressing layer. The water pump is started to transport the water in the water tank to the hollow connecting plate, and then transported to the small space channel through each water hole, so as to quickly realize the soaking of the soil, improve the soil soaking effect and depth, and reduce the damage to the excavation roller and the excavation blades on its outside during the excavation process.

[0018] A method for pre-buried excavation of pipelines for water conservancy construction, using the pre-buried excavation device for pipelines for water conservancy construction as described above, the excavation method comprises the following steps:

[0019] Step 1: Before the pre-buried channel excavation operation is performed, the hydraulic cylinder 2 is adjusted to drive the embedded drill rod to be pressed into the soil at the excavation location, and the water pump is started. The water pump transports the water in the water tank to the hollow connecting plate, and then transports it to the small space channel through various water holes to quickly soak the soil. After the soil is soaked, the drive motor is started, and the drive motor drives the excavation blade to excavate the soil;

[0020] Step 2: During the excavation process, part of the soil falls directly into the collection frame, and then falls into the two sliding frames below along the isolation mesh plate. The high-pressure adsorption pump is started. The high-pressure adsorption pump adsorbs the remaining soil through the adsorption holes on the outside of the semicircular hollow adsorption cover, so that it all falls into the collection frame, and the isolation mesh plate guides it downward;

[0021] Step 3: After the excavation at the current position is completed, the cylinder drives the excavation roller forward, and the hydraulic cylinder is adjusted to drive the inner fitting arc plate to move to the bottom of the channel, so that the offset pressure teeth perform offset extrusion on the soil at the bottom of the channel, thereby increasing the soil density at the bottom of the channel, and then starting the forward and reverse motors. The forward and reverse motors drive the No. 1 impact arc plate outside the rotating shaft to fit the extrusion plate at the opening for impact. After that, the soil at the opening of the channel is gradually compacted under the action of extrusion and impact. At this time, the forward and reverse motors reverse to drive the No. 2 impact arc plate to impact the side wall pressure plate, thereby realizing the compaction of the soil on the inner wall of the channel and completing the overall compaction of the soil at the entire channel. After the excavation is completed, the soil inside the channel is compacted.

[0022] As can be seen from the above, the present invention provides a pre-buried pipeline excavation device for water conservancy construction. When excavating the pre-buried channel, after the excavation blades complete the initial deep excavation, the hydraulic cylinder is adjusted to drive the inner fitting arc plate to move to the bottom of the channel, so that the offset pressure teeth perform offset extrusion on the soil at the bottom of the channel, thereby strengthening the soil density at the bottom of the channel, and then the forward and reverse motors are started. After the forward and reverse motors drive the fitting extrusion plate at the opening of the No. 1 impact arc plate outside the rotating shaft to impact, the soil at the opening of the channel is gradually compacted under the action of extrusion and impact. At this time, the forward and reverse motors reverse to drive the No. 2 impact arc plate to impact the side wall pressure plate, thereby realizing the compaction of the soil on the inner side wall of the channel, completing the overall compaction of the soil at the entire channel, avoiding soil collapse and causing the bottom of the channel to rise in height. This operation method has the technical effect of avoiding failures during pre-buried pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The present invention is a schematic diagram of the overall structure of a pipeline pre-buried excavation device for water conservancy construction.

[0024] Figure 2 The present invention is a front view of the overall structure of a pipeline pre-buried excavation device for water conservancy construction proposed by the present invention.

[0025] Figure 3 This is a schematic diagram of a press molding component of a pipeline pre-buried excavation device for water conservancy construction proposed by the present invention.

[0026] Figure 4 This is a schematic diagram of a soil removal component of a pre-buried excavation device for pipelines used in water conservancy construction proposed by the present invention.

[0027] Figure 5 for Figure 4 Schematic diagram of the plan structure.

[0028] Figure 6 This is a schematic diagram of the combined structure of an excavating roller and an excavating blade of a pre-buried excavating device for pipelines used in water conservancy construction proposed by the present invention.

[0029] Figure 7 This is a schematic diagram of an embedded wetting component of a pre-buried excavation device for pipelines used in water conservancy construction proposed by the present invention.

[0030] Figure 8 This is an enlarged view of a single embedded drill rod structure of a pipeline pre-buried excavation device for water conservancy construction proposed by the present invention.

[0031] In the figure: 1. Ground moving rail; 2. Gantry; 3. Pressing molding component; 301. Inner fitting arc plate; 302. Fitting extrusion plate at the opening; 303. Offset pressing teeth; 304. Side wall pressure plate; 305. Connecting plate; 306. Lifting plate; 307. Hydraulic cylinder 1; 308. No. 1 impact arc plate; 309. Rotating shaft; 310. Forward and reverse motor; 311. Shaft plate; 312. No. 2 impact arc plate; 4. Moving slider; 5. Mounting plate; 6. Cylinder; 7. Soil removal component; 701. Dust collecting box; 702. Sliding frame; 703. Collecting frame; 704. Adsorption hole; 705. Semicircular hollow adsorption cover; 7 06. Mounting frame; 707. Pump frame; 708. High-pressure adsorption pump; 709. Dust pipe; 710. Isolation mesh plate; 8. Inner frame; 9. Embedded soaking assembly; 901. Water tank; 902. Water pump; 903. Water pipe; 904. Embedded drill pipe; 905. Inclined frame; 906. Hollow connecting plate; 907. Operating frame; 908. Hydraulic cylinder two; 909. Soil pressure layer; 910. Water outlet sleeve; 911. Water hole; 912. Connecting pipe; 10. Driving motor; 11. Lifting trough; 12. Digging roller; 13. Hydraulic cylinder three; 14. Shaft block; 15. Cutting rod; 16. Digging blade; 17. Driving shaft. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] The present invention discloses a pre-buried excavation device for water conservancy construction, which is mainly applied to the existing pre-buried excavation device for water conservancy construction. During use, after the soil is excavated by the excavation component, part of the soil is taken away from the pre-buried channel during the excavation process, and part of the soil is retained in the pre-buried channel, which requires staff to clean it up later, resulting in increased labor input. At the same time, the soil on both sides of the pre-buried channel after the excavation is in a relatively loose state, and it is easy for the soil on both sides to collapse and slide when the pipeline is pre-buried. This will cause the bottom of the pre-buried channel to be lifted, and a large amount of labor needs to be invested again to repair it, so as to avoid the scenario of pipeline pre-buried errors.

[0034] Reference Figure 1-Figure 8 , a pre-buried excavation device for pipelines for water conservancy construction, comprising two grounded movable rails 1, an excavation roller 12 and a gantry 2, two inner frames 8 are fixedly connected to the inner horizontal sides of the gantry 2, and the two inner frames 8 are provided with the same pressing molding component 3;

[0035] like Figure 3 As shown, the compression molding component 3 includes an inner fitting arc plate 301,

[0036] The side wall pressing plate 304, and the outer side of the inner fitting arc plate 301 is rotatably connected to two side wall pressing plates 304 through a hinge (not shown in the figure), and the outer sides of the two side wall pressing plates 304 are rotatably connected to the opening fitting extrusion plate 302 through a hinge (not shown in the figure) ； The rotatable connection of two components by means of a hinge is a prior art and will not be described in detail here. The specific rotatable connection method between the inner fitting arc plate 301, the side wall pressure plate 304, and the opening fitting extrusion plate 302 is not limited to the above-mentioned hinge.

[0037] There are a forward and reverse motor 310, a No. 1 impact arc plate 308 and a No. 2 impact arc plate 312; and two groups of shaft plates 311 are fixed at the two horizontal ends of the inner side of the inner fitting arc plate 301, with two in each group, and a rotating shaft 309 is fixedly installed between the shaft plates 311 in each group, and a forward and reverse motor 310 is installed at the head end of the rotating shaft 309 through a mechanical connection with a coupling, and the outer sides of the two groups of rotating shafts 309 away from the center of the fitting arc plate 301 are respectively fixed with a No. 1 impact arc plate 308 and a No. 2 impact arc plate 312.

[0038] Multiple hydraulic cylinders 307 are fixedly connected to the outer sides of the two inner frames 8 with a same connecting plate 305, and a number of hydraulic cylinders 307 are fixedly connected to the bottom of the connecting plate 305 at equal distances, and the output ends of the multiple hydraulic cylinders 307 are fixedly connected to the same lifting plate 306, and the lifting plate 306 is fixedly connected to the outer sides of the two shaft plates 311.

[0039] In one specific embodiment, the staggered pressure teeth are distributed below the inner fitting arc plate. When the inner fitting arc plate descends, the staggered pressure teeth first contact the soil inside the groove, and the staggered pressure teeth are pressed into the soil, thereby forming mutual cooperation with the inner fitting arc plate, reinforcing the density of the soil where the staggered pressure teeth are pressed, and staggered extrusion at different positions.

[0040] In a specific application scenario, when excavating a pre-buried channel, after the excavation blade 16 completes the initial deep excavation, the hydraulic cylinder 1 307 is adjusted to drive the inner fitting arc plate 301 to move to the bottom of the channel, so that the offset pressing teeth 303 perform offset squeezing on the soil at the bottom of the channel, thereby enhancing the soil density at the bottom of the channel, and then the forward and reverse motor 310 is started to rotate forward (such as Figure 2 The first impact arc plate 308 is rotated counterclockwise, and when the first impact arc plate 308 is close to the extrusion plate 302 at the opening, the forward and reverse motor 310 is rotated back and forth within a small angle range, driving the first impact arc plate 308 to impact the extrusion plate 302 at the opening for multiple times, thereby compacting the soil at the channel opening. Then, the forward and reverse motor 310 is reversed (as shown in FIG. Figure 2As shown in the direction, rotate clockwise), after the No. 2 impact arc plate 312 is close to the side wall pressure plate 304, the forward and reverse motor 310 is rotated back and forth in a small angle range, driving the No. 2 impact arc plate 312 to impact the side wall pressure plate 304 multiple times. Since the side wall pressure plate 304 is rotatably connected to the inner fitting arc plate 301, relying on the multiple impacts of the No. 2 impact arc plate 312, the side wall pressure plate 304 is rotated and beaten toward the soil on the inner wall of the channel, thereby realizing the compaction of the soil on the inner wall of the channel, that is, realizing the squeezing of the side wall of the channel and the soil near the top, avoiding the occurrence of soil collapse causing the height of the bottom of the channel to rise. This operation method avoids malfunctions during pre-buried pipelines and improves the use value of the excavation device.

[0041] Reference Figure 1 , Figure 2 and Figure 6 In a preferred embodiment, the inside of the two grounded moving rails 1 are both slidably connected with moving sliders 4, and the gantry 2 is fixedly connected to the top of the two moving sliders 4, and the top of the two grounded moving rails 1 is fixedly connected with the same mounting plate 5, and the side of the mounting plate 5 facing the two moving sliders 4 is fixedly connected with a cylinder 6, and the output ends of the two cylinders 6 are respectively fixedly connected to one side of the two moving sliders 4.

[0042] In a preferred embodiment, a lifting groove 11 is opened on the outer side of the two inner frames 8, and the inside of the two lifting grooves 11 is slidably connected with an axle block 14, the top of the two inner frames 8 is fixedly connected with a hydraulic cylinder three 13, and the output end of the hydraulic cylinder three 13 is fixedly connected to the top of the axle block 14, one side of one axle block 14 is fixedly connected with a drive motor 10, and the output shaft of the drive motor 10 is fixedly connected to the drive shaft 17 through a coupling, the excavating roller 12 is fixedly connected to the outer side of the drive shaft 17, the outer side of the excavating roller 12 is annularly distributed with excavating blades 16, and the outer side of the excavating roller 12 is annularly distributed with cutting rods 15.

[0043] In one specific embodiment, the edge of the excavating blade is straight. After the excavation is completed, the bottom of the excavated channel can be in contact with the bottom of 301. The embedded pipe is cylindrical and does not fit all positions of the inner wall of the channel. Only the side walls at the bottom and the center position are in contact with the channel. The press molding component here is limited according to the shape of the embedded pipe, and is not simply for limiting the excavated channel.

[0044] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5In a preferred embodiment, a soil carrying assembly 7 is provided on the outer side of one of the shaft blocks 14, and the soil carrying assembly 7 includes a collecting frame 703, a mounting frame 706 is fixedly connected to one side of the collecting frame 703, and the mounting frame 706 is fixedly connected to the outer side of the shaft block 14, a guide hole is opened at the bottom of the collecting frame 703, and two sliding frames 702 are fixedly connected to the inner wall of the guide hole, and the two sliding frames 702 are symmetrically distributed around the center point of the guide hole, and the unloading ends of the two sliding frames 702 are located on the outer sides of the two grounded moving rails 1, and a dust collecting box 701 is fixedly connected to the outer side of one of the sliding frames 702, and the collecting frame 703 faces the excavating roller 12. A semicircular hollow adsorption cover 705 is fixedly connected to the inside thereof, and adsorption holes 704 are opened at equal distances on the outside of the semicircular hollow adsorption cover 705 facing the excavating blade 16. The collecting frame 703 is located on the outside of the semicircular hollow adsorption cover 705 and is fixedly connected to the inside thereof with an isolation mesh plate 710. A pump rack 707 is fixedly connected to the outside of the collecting frame 703, and a high-pressure adsorption pump 708 is fixedly connected to the top of the pump rack 707. The adsorption end of the high-pressure adsorption pump 708 is connected to the inside of the semicircular hollow adsorption cover 705 through a pipeline, and the delivery end of the high-pressure adsorption pump 708 is fixedly connected to a dust conveying pipe 709, and the other end of the dust conveying pipe 709 is fixedly connected to the inside of the dust collecting box 701.

[0045] Specifically, when the soil is excavated by the excavating blades 16 on the outside of the excavating roller 12, when the excavating blades 16 drive the soil to the collecting frame 703, part of the soil falls directly into the collecting frame 703, and then falls into the two sliding frames 702 below along the isolation mesh plate 710, and the high-pressure adsorption pump 708 is started. The high-pressure adsorption pump 708 adsorbs the remaining soil through the adsorption holes 704 on the outside of the semicircular hollow adsorption cover 705, so that it all falls into the collecting frame 703. The isolation mesh plate 710 guides it downward to prevent large pieces of soil from being adsorbed into the dust conveying pipe 709 and causing the dust conveying pipe 709 to be blocked. The dust carried in the soil is transported to the dust collecting box 701 through the dust conveying pipe 709 to prevent it from causing environmental pollution. The soil is removed during the channel excavation process, and there is no need for the staff to clean the soil later, which further improves the use value of the excavation device.

[0046] Reference Figure 1 , Figure 2 , Figure 7 and Figure 8In a preferred embodiment, an embedded soaking assembly 9 is provided on the gantry 2, and the embedded soaking assembly 9 includes a water tank 901 and an inclined frame 905, the inclined frame 905 is fixedly connected to the outside of the gantry 2, the water tank 901 is fixedly connected to the top of the gantry 2, the outside of the inclined frame 905 is fixedly connected to an operating frame 907, and the top of the operating frame 907 is fixedly connected to two hydraulic cylinders 908, the output ends of the two hydraulic cylinders 908 are fixedly connected to the same hollow connecting plate 906, the bottom of the hollow connecting plate 906 is equidistantly provided with docking holes, and the interior of each docking hole is fixedly connected to a connecting pipe 912, a water pump 902 is fixedly connected to the top of the water tank 901, and the water inlet end of the water pump 902 is connected to the inside of the water tank 901 through a pipeline, and the water delivery end of the water pump 902 is fixedly connected to a water delivery pipe 903, and the other end of the water delivery pipe 903 is fixedly connected to the inside of the hollow connecting plate 906, and the outside of each connecting pipe 912 is fixedly connected to a water outlet sleeve 910, and the bottom of the water outlet sleeve 910 is fixedly connected to an embedded drill rod 904, and a compressed soil layer 909 is distributed in an annular shape on the outside of the embedded drill rod 904 near the bottom end, and a water hole 911 is opened in an annular shape at the bottom of the water outlet sleeve 910 located on the outside of the embedded drill rod 904.

[0047] It should be noted that before the pre-buried channel excavation operation is carried out, the hydraulic cylinder 2 908 is adjusted to drive the embedded drill rod 904 to be pressed into the soil at the excavation site. When the embedded drill rod 904 is pressed down, the soil pressing layer 909 squeezes the soil it presses down, so that after the embedded drill rod 904 is pressed down to the maximum extent, there are small space channels above each soil pressing layer 909. The water pump 902 is started, and the water pump 902 transports the water in the water tank 901 to the hollow connecting plate 906, and then transports it to the small space channel through each water hole 911, so as to quickly realize the soaking of the soil, improve the soil soaking effect and depth, and reduce the damage to the excavation roller 12 and the excavation blades 16 on its outside during the excavation process.

[0048] A method for pre-buried excavation of pipelines for water conservancy construction, using the pre-buried excavation device for pipelines for water conservancy construction as described above, the excavation method comprises the following steps:

[0049] Step 1: Before the pre-buried channel excavation operation is performed, the hydraulic cylinder 2 908 is adjusted to drive the embedded drill rod 904 to be pressed into the soil at the excavation location, and the water pump 902 is started. The water pump 902 transports the water in the water tank 901 to the hollow connecting plate 906, and then transports the water to the small space channel through each water hole 911, so as to quickly wet the soil. After the soil is wetted, the drive motor 10 is started, and the drive motor 10 drives the excavation blade 16 to excavate the soil;

[0050] Step 2: During the excavation process, part of the soil falls directly into the collection frame 703, and then falls into the two sliding frames 702 below along the isolation mesh plate 710, and the high-pressure adsorption pump 708 is started. The high-pressure adsorption pump 708 adsorbs the remaining soil through the adsorption holes 704 on the outside of the semicircular hollow adsorption cover 705, so that the remaining soil falls into the collection frame 703, and the isolation mesh plate 710 guides it downward;

[0051] Step three: After the excavation at the current position is completed, the cylinder 6 drives the excavation roller 12 forward, and the hydraulic cylinder 307 is adjusted to drive the inner fitting arc plate 301 to move to the bottom of the channel, so that the offset pressure teeth 303 perform offset extrusion on the soil at the bottom of the channel, thereby strengthening the soil density at the bottom of the channel, and then start the forward and reverse motor 310. The forward and reverse motor 310 drives the No. 1 impact arc plate 308 on the outside of the rotating shaft 309 to impact the fitting extrusion plate 302 at the opening. The soil at the opening of the channel is gradually compacted under the action of extrusion and impact. At this time, the forward and reverse motor 310 reverses and drives the No. 2 impact arc plate 312 to impact the side wall pressure plate 304, thereby realizing the compaction of the soil on the inner side wall of the channel, completing the overall compaction of the soil at the entire channel, and after the excavation is completed, the soil inside the channel is compacted.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pre-buried excavation device for pipelines used in water conservancy construction, comprising two grounded movable rails (1), an excavation roller (12) and a gantry (2), characterized in that: The gantry (2) is internally fixedly connected to two inner frames (8), and the two inner frames (8) are provided with a same pressing and molding component (3), the pressing and molding component (3) comprises an inner fitting arc plate (301), and the outer side of the inner fitting arc plate (301) is connected to two side wall pressure plates (304) through a hinge, and the outer sides of the two side wall pressure plates (304) are both connected to an opening fitting extrusion plate (302) through a hinge, and the outer side of the inner fitting arc plate (301) facing downward is equidistantly fixedly connected to offset pressing teeth (303), and the inner side of the inner fitting arc plate (301) is fixedly connected to four shaft plates (311), wherein the same side of the two shaft plates (311) is fixedly connected to positive and negative A rotating motor (310), the output shaft of the forward and reverse rotating motor (310) is fixedly connected to a rotating shaft (309) through a coupling, the other end of the rotating shaft (309) is connected to the outer side of the other shaft plate (311) through a bearing, the outer side of the rotating shaft (309) is fixedly connected to a first impact arc plate (308) and a second impact arc plate (312), the outer sides of the two inner frames (8) are fixedly connected to the same connecting plate (305), and the bottom of the connecting plate (305) is fixedly connected to a hydraulic cylinder one (307) at an equal distance, the output ends of the multiple hydraulic cylinders one (307) are fixedly connected to the same lifting plate (306), and the lifting plate (306) is fixedly connected to the outer sides of the two shaft plates (311); An embedded soaking assembly (9) is provided on the gantry (2), and the embedded soaking assembly (9) comprises a water tank (901) and an inclined frame (905), the inclined frame (905) is fixedly connected to the outside of the gantry (2), and the water tank (901) is fixedly connected to the top of the gantry (2).

2. A pre-buried excavation device for water conservancy construction according to claim 1, characterized in that: The insides of the two grounded moving rails (1) are both slidably connected with moving sliders (4), and the gantry (2) is fixedly connected to the tops of the two moving sliders (4). The tops of the two grounded moving rails (1) are fixedly connected to the same mounting plate (5), and one side of the mounting plate (5) facing the two moving sliders (4) is fixedly connected to a cylinder (6), and the output ends of the two cylinders (6) are respectively fixedly connected to one side of the two moving sliders (4).

3. A pre-buried excavation device for water conservancy construction according to claim 2, characterized in that: The outer sides of the two inner frames (8) are provided with lifting grooves (11), and the interiors of the two lifting grooves (11) are slidably connected with shaft blocks (14). The tops of the two inner frames (8) are fixedly connected with hydraulic cylinders (13), and the output ends of the hydraulic cylinders (13) are fixedly connected to the tops of the shaft blocks (14). One side of one of the shaft blocks (14) is fixedly connected with a driving motor (10), and the output shaft of the driving motor (10) is fixedly connected to a driving shaft (17) through a coupling. The excavating roller (12) is fixedly connected to the outer side of the driving shaft (17), and the outer side of the excavating roller (12) is provided with excavating blades (16) in an annular manner, and the outer side of the excavating roller (12) is provided with cutting rods (15) in an annular manner.

4. A pre-buried excavation device for water conservancy construction according to claim 3, characterized in that: A soil removal assembly (7) is provided on the outer side of one of the shaft blocks (14), and the soil removal assembly (7) comprises a collection frame (703), one side of the collection frame (703) is fixedly connected to a mounting frame (706), and the mounting frame (706) is fixedly connected to the outer side of the shaft block (14).

5. A pre-buried excavation device for water conservancy construction according to claim 4, characterized in that: A guide hole is formed at the bottom of the collecting frame (703), and two sliding frames (702) are fixedly connected to the inner wall of the guide hole. The two sliding frames (702) are symmetrically distributed around the center point of the guide hole. The unloading ends of the two sliding frames (702) are located outside the two grounded movable rails (1), and a dust collecting box (701) is fixedly connected to the outside of one of the sliding frames (702).

6. A pre-buried excavation device for water conservancy construction according to claim 5, characterized in that: The collecting frame (703) is fixedly connected to the inside of the semicircular hollow adsorption cover (705) facing the excavating roller (12), and adsorption holes (704) are opened at equal distances on the outside of the semicircular hollow adsorption cover (705) facing the excavating blade (16); the collecting frame (703) is fixedly connected to the inside of the semicircular hollow adsorption cover (705) located on the outside of the semicircular hollow adsorption cover (705); the outside of the collecting frame (703) is fixedly connected to a pump frame (707); the top of the pump frame (707) is fixedly connected to a high-pressure adsorption pump (708); the adsorption end of the high-pressure adsorption pump (708) is connected to the inside of the semicircular hollow adsorption cover (705) through a pipeline; the delivery end of the high-pressure adsorption pump (708) is fixedly connected to a dust conveying pipe (709); the other end of the dust conveying pipe (709) is fixedly connected to the inside of the dust collecting box (701).

7. A pre-buried excavation device for water conservancy construction according to claim 6, characterized in that: The outer side of the inclined frame (905) is fixedly connected to an operating frame (907), and the top of the operating frame (907) is fixedly connected to two hydraulic cylinders (908), and the output ends of the two hydraulic cylinders (908) are fixedly connected to the same hollow connecting plate (906), and the bottom of the hollow connecting plate (906) is provided with docking holes at equal distances, and the interior of each docking hole is fixedly connected to a connecting pipe (912).

8. A pre-buried excavation device for water conservancy construction according to claim 7, characterized in that: The top of the water tank (901) is fixedly connected to a water pump (902), and the water inlet end of the water pump (902) is connected to the inside of the water tank (901) through a pipeline, the water delivery end of the water pump (902) is fixedly connected to a water delivery pipe (903), and the other end of the water delivery pipe (903) is fixedly connected to the inside of the hollow connecting plate (906), and the outer side of each connecting pipe (912) is fixedly connected to a water outlet sleeve (910), and the bottom of the water outlet sleeve (910) is fixedly connected to an embedded drill rod (904), and a soil pressure layer (909) is distributed in an annular manner on the outer side of the embedded drill rod (904) near the bottom end, and a water hole (911) is opened in an annular manner at the bottom of the water outlet sleeve (910) located on the outer side of the embedded drill rod (904).

9. A method for pre-buried excavation of pipelines for water conservancy construction, using a pre-buried excavation device for pipelines for water conservancy construction according to claim 8, characterized in that: The mining method comprises the following steps: Step 1: Before the pre-buried channel excavation operation is performed, the hydraulic cylinder 2 (908) is adjusted to drive the embedded drill rod (904) to be pressed into the soil at the excavation location, and the water pump (902) is started. The water pump (902) transports the water in the water tank (901) to the hollow connecting plate (906), and then transports the water to the small space channel through each water hole (911), so as to quickly wet the soil. After the soil is wetted, the drive motor (10) is started, and the drive motor (10) drives the excavation blade (16) to excavate the soil; Step 2: During the excavation process, part of the soil falls directly into the collection frame (703), and then falls into the two sliding frames (702) below along the isolation mesh plate (710), and the high-pressure adsorption pump (708) is started. The high-pressure adsorption pump (708) adsorbs the remaining soil through the adsorption holes (704) on the outside of the semicircular hollow adsorption cover (705), so that the remaining soil falls into the collection frame (703), and the isolation mesh plate (710) guides it downward; Step 3: After the excavation at the current position is completed, the cylinder (6) drives the excavation roller (12) forward, and the hydraulic cylinder (307) is adjusted to drive the inner fitting arc plate (301) to move to the bottom of the channel, so that the offset pressing teeth (303) perform offset extrusion on the soil at the bottom of the channel, thereby enhancing the soil density at the bottom of the channel, and then the forward and reverse motor (310) is started. The forward and reverse motor (310) drives the No. 1 impact arc plate (308) outside the rotating shaft (309) to impact the fitting extrusion plate (302) at the opening. The soil at the opening of the channel is gradually compacted under the action of extrusion and impact. At this time, the forward and reverse motor (310) reverses to drive the No. 2 impact arc plate (312) to impact the side wall pressure plate (304), thereby realizing the compaction of the soil on the inner side wall of the channel, completing the overall compaction of the soil at the entire channel, and after the excavation is completed, the soil inside the channel is compacted.

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