Continuous sampling device for water and soil conservation engineering

Abstract

The invention discloses a continuous sampling device for water and soil conservation engineering, and relates to the technical field of continuous sampling devices.The continuous sampling device comprises an outer mounting barrel, an inner roller, a drill rod inserting and flow collecting assembly, a blockage and dirt cleaning assembly, a rotary separation and ejection assembly and a collecting and guiding assembly, the drill rod inserting and flow collecting assembly comprises a flow collecting box, and spiral flow guide grooves are formed in the flow collecting box in an array mode; a spiral flow guide groove is formed in the drill rod inserting and flow collecting assembly, muddy water is guided through the spiral flow guide groove to form accelerated spiral flow, the vortex impacts the blockage and dirt cleaning assembly to drive the rotary separation and throwing assembly to rotate at a high speed so as to throw deadwood and weeds at an outer opening of the spiral flow guide groove, and the situation that sundries are gathered to form a fluffy structure to hinder soil entering is avoided. Meanwhile, after being integrated by the collecting and guiding assembly, the eddy current directly flushes the inner wall of the inner roller to drive the outer mounting barrel and the inner roller to rotate, centrifugal mud-water separation without electric drive is realized by utilizing fluid kinetic energy, the problem of poor outdoor applicability caused by dependence on electric power of an existing device is solved, and the sampling accuracy is improved through a mechanical unblocking structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of continuous sampling device, in particular to the continuous sampling device for water and soil conservation engineering. BACKGROUND

[0002] Water and soil conservation refers to the prevention and control measures taken to address water and soil loss caused by natural factors and human activities. Raindrop splash and runoff erosion are the driving forces of water and soil loss. After regional rainfall, observing the precipitation conditions and soil loss on the ground surface and dynamically monitoring and evaluating the causes of water and soil loss are the basis for water and soil conservation prevention, comprehensive management, ecological restoration, and scientific research.

[0003] A water and soil conservation continuous sampling device and sampling method are disclosed in Chinese Patent No. CN116358916B, which includes a mounting cylinder. A water and soil separation assembly is installed on the inner wall of the mounting cylinder. A first unblocking assembly is externally fitted to the water and soil separation assembly. A second unblocking assembly is installed inside the water and soil separation assembly. A piston assembly is installed on the top of the second unblocking assembly. A filter assembly is installed on the top of the mounting cylinder. A plurality of drainage grooves are installed in a ring structure on the top of the filter assembly. The device achieves rapid separation of mud and water through rapid rotation of a centrifugal cylinder, which improves the speed and efficiency of water and soil separation to some extent and avoids overflow caused by slow rainwater flow in the drainage grooves.

[0004] However, the existing device still has many defects in actual use. Some devices use a conical ring-shaped intercepting rod, which can block large-volume dry branches and grasses above a gentle slope, but it can also cause dry branches and grasses to accumulate and form a fluffy structure. In this structure, water can easily accumulate, and when new water enters, it will mix with the existing water. The fluffy structure can hinder the soil in the water from entering the sampling bottle, reducing the amount of soil entering the sampling bottle and affecting the accuracy of the sampling.

[0005] Secondly, most existing water and soil conservation sampling devices rely on electric power to drive centrifugal separation, unblocking, and other core functions. The above technical solution achieves mud and water separation by rotating a centrifugal cylinder driven by a motor. Such design has limitations in long-term outdoor monitoring scenarios. On the one hand, power supply is difficult in remote areas, and additional energy storage devices such as solar panels and batteries are required, which significantly increases the cost and maintenance complexity of the device and can cause unstable power supply in extreme weather conditions such as continuous rain and dust coverage. On the other hand, power-driven components such as motors and electronic control modules are easily exposed to humid and dusty environments, which can cause short circuits and rust, leading to increased equipment downtime and difficulty in meeting the stringent requirements of water and soil conservation monitoring for data continuity and real-time performance.

[0006] Therefore, the present application proposes a continuous sampling device for water and soil conservation engineering to solve the above problems. SUMMARY

[0007] In view of the problems existing in the prior art, the present application is proposed.

[0008] To solve the above technical problems, the present application provides the following technical scheme: a continuous sampling device for soil and water conservation engineering, comprising:

[0009] The outer mounting cylinder and the inner cylinder are coaxially arranged and both have an upper opening and a top end flush with each other;

[0010] The drill plug flow collection assembly is arranged on the outer mounting cylinder and extends to the outer edge of the inner cylinder in the flow collection box, and the flow collection box is provided with an array of spiral flow guide grooves, the spiral flow guide grooves have an opening section, a horizontal section and an inclined section, and the mud water forms accelerated spiral flow and cuts into the inner cylinder cavity under the guidance of the spiral flow guide grooves;

[0011] The blockage and dirt cleaning assembly is hung on the drill plug flow collection assembly, one end of the blockage and dirt cleaning assembly penetrates the flow collection box and is equipped with a spin-off projection assembly, the other end is rotationally connected with a collection and guide assembly, the collection and guide assembly penetrates the inner cylinder and is fixed with the outer mounting cylinder, the spin-off projection assembly extends across the flow collection box to the outer opening of the spiral flow guide groove, when the high-speed vortex cuts into the outer mounting cylinder, the impact blockage and dirt cleaning assembly drives the spin-off projection assembly to rotate at a high speed synchronously to project the foreign matter at the outer opening of the spiral flow guide groove, and the vortex downward is integrated and guided by the collection and guide assembly to directly impact the inner wall of the inner cylinder to drive the rotation of the outer mounting cylinder to separate the mud water.

[0012] As a preferred scheme of the continuous sampling device for soil and water conservation engineering, the flow collection box comprises a flow collection bottom ring, a plurality of flow collection spiral partitions circumferentially arrayed on the flow collection bottom ring, and a flow collection cover plate arranged on the flow collection spiral partitions and parallel to the flow collection bottom ring, wherein the flow collection spiral partitions divide the cavity composed of the flow collection bottom ring and the flow collection cover plate into a plurality of congruent cavities to form the spiral flow guide grooves, and the opening section, the horizontal section and the inclined section of the spiral flow guide grooves are arranged in a continuously tapered structure.

[0013] As a preferred scheme of the continuous sampling device for soil and water conservation engineering, the inner cylinder comprises an upper cylinder arranged on the flow collection bottom ring, a transfer bearing sleeved on the inner side of the upper cylinder, a middle cylinder connected to the transfer bearing through the bearing, and a lower cylinder arranged at the bottom end of the middle cylinder, the cross section of the upper cylinder is configured as an L shape, the edge of the upper cylinder extends inwardly from the inner edge of the flow collection bottom ring, the circumferential edge of the inwardly extending surface of the upper cylinder is connected with a flow guide cone barrel having upper and lower openings, and a triangular link pad plate is arranged on the extending section of the upper cylinder, the top end of the triangular link pad plate is sealingly connected with the inclined section of the flow collection bottom ring, and the bottom end is smoothly connected with the upper edge of the flow guide cone barrel to form a flow guide slope for the spiral flow of the mud water.

[0014] As a preferred scheme of the continuous sampling device for water and soil conservation engineering, the clog and dirt cleaning assembly comprises a rotating shaft coaxially arranged in the inner drum chamber, a plurality of toothed scrapers and a plurality of sheet scrapers arranged in a staggered circumferential distribution, and the plurality of toothed scrapers and the plurality of sheet scrapers are assembled on the rotating shaft to rotate synchronously with the rotating shaft.

[0015] The toothed scrapers are provided with a plurality of tooth grooves on one side facing the flow cone barrel, and the rotating shaft drives the toothed scrapers and the sheet scrapers to rotate to scrape the inner conical surface of the flow cone barrel.

[0016] As a preferred scheme of the continuous sampling device for water and soil conservation engineering, the clog and dirt cleaning assembly comprises a rotating shaft coaxially arranged in the inner drum chamber, a plurality of toothed scrapers and a plurality of sheet scrapers arranged in a staggered circumferential distribution, and the plurality of toothed scrapers and the plurality of sheet scrapers are assembled on the rotating shaft to rotate synchronously with the rotating shaft.

[0017] As a preferred scheme of the continuous sampling device for water and soil conservation engineering, the clog and dirt cleaning assembly comprises a rotating shaft coaxially arranged in the inner drum chamber, a plurality of toothed scrapers and a plurality of sheet scrapers arranged in a staggered circumferential distribution, and the plurality of toothed scrapers and the plurality of sheet scrapers are assembled on the rotating shaft to rotate synchronously with the rotating shaft.

[0018] As a preferred scheme of the continuous sampling device for water and soil conservation engineering, the clog and dirt cleaning assembly comprises a rotating shaft coaxially arranged in the inner drum chamber, a plurality of toothed scrapers and a plurality of sheet scrapers arranged in a staggered circumferential distribution, and the plurality of toothed scrapers and the plurality of sheet scrapers are assembled on the rotating shaft to rotate synchronously with the rotating shaft.

[0019] As a preferred scheme of the continuous sampling device for water and soil conservation engineering, the clog and dirt cleaning assembly comprises a rotating shaft coaxially arranged in the inner drum chamber, a plurality of toothed scrapers and a plurality of sheet scrapers arranged in a staggered circumferential distribution, and the plurality of toothed scrapers and the plurality of sheet scrapers are assembled on the rotating shaft to rotate synchronously with the rotating shaft.

[0020] As a preferred scheme of the continuous sampling device for water and soil conservation engineering, the clog and dirt cleaning assembly comprises a rotating shaft coaxially arranged in the inner drum chamber, a plurality of toothed scrapers and a plurality of sheet scrapers arranged in a staggered circumferential distribution, and the plurality of toothed scrapers and the plurality of sheet scrapers are assembled on the rotating shaft to rotate synchronously with the rotating shaft.

[0021] As a preferred scheme of the continuous sampling device for water and soil conservation engineering, the clog and dirt cleaning assembly comprises a rotating shaft coaxially arranged in the inner drum chamber, a plurality of toothed scrapers and a plurality of sheet scrapers arranged in a staggered circumferential distribution, and the plurality of toothed scrapers and the plurality of sheet scrapers are assembled on the rotating shaft to rotate synchronously with the rotating shaft.

[0022] The annular cone-shaped cylinder gasket is arranged in an asymmetric frustum shape to form an asymmetric cavity at the lower portion of the lower cylinder plate body.

[0023] The beneficial effects of the present invention are as follows: the present application sets an outer mounting cylinder, an inner drum, a plugging and collecting assembly, a blockage and pollution removal assembly, a spin-off ejection assembly and a collecting and guiding assembly. A spiral guide groove is set in the plugging and collecting assembly, and the mud and water are guided through the spiral guide groove to form an accelerated spiral flow. The vortex impacts the blockage and pollution removal assembly to drive the spin-off ejection assembly to rotate at high speed to eject dead branches and weeds at the opening outside the spiral guide groove, avoiding the accumulation of debris to form a fluffy structure that hinders the entry of soil. At the same time, the vortex is integrated by the collecting and guiding assembly and rushes directly to the inner wall of the inner drum, driving the outer mounting cylinder and the inner drum to rotate, and utilizing the kinetic energy of the fluid to realize centrifugal mud and water separation without electric drive, which not only solves the problem of poor outdoor applicability of the existing device due to its dependence on electricity, but also improves the sampling accuracy through the mechanical blockage removal structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is a schematic diagram of the overall structure of a continuous sampling device for soil and water conservation projects;

[0026] Figure 2 This is a front view of the overall structure of a continuous sampling device for soil and water conservation projects;

[0027] Figure 3 For the present invention Figure 2 A magnified view of the structure of part A;

[0028] Figure 4 This is the overall structural axonometric drawing of the continuous sampling device for soil and water conservation projects;

[0029] Figure 5 This is a structural detail diagram of the current collecting spiral baffle in the present invention;

[0030] Figure 6 This is a structural detail diagram of the upper cylinder of the present invention;

[0031] Figure 7 For the present invention Figure 6 A magnified view of the structure of part B;

[0032] Figure 8 This is a structural detail diagram of the inverted tapered guide cylinder in the present invention.

[0033] 100, outer installation cylinder; 210, upper cylinder body; 211, triangular connection pad; 220, transfer bearing; 230, middle cylinder body; 231, middle cylinder plate body; 232, flow guide push plate; 240, lower cylinder body; 241, lower cylinder plate body; 242, ring cone type cylinder pad; 243, overflow hole; 250, flow guide cone barrel; 300, drill rod insertion assembly; 310, flow collection box; 311, spiral flow guide groove; 312, slurry inlet; 313, slurry outlet; 314, flow collection bottom ring; 3141, center bottom plate; 3142, side bottom plate; 315, flow collection spiral partition plate; 316, flow collection cover; 3161, horizontal center plate; 3162, outer extension plate; 3163, annular triangular ring; 320, drill rod; 400, blockage cleaning and dirt cleaning assembly; 410, rotating shaft; 420, tooth scraper; 430, sheet scraper; 500, spin-off throwing assembly; 510, connecting head; 520, centrifugal throwing arm; 530, push sheet; 600, collection assembly; 610, reverse cone guide cylinder; 611, spiral collection groove; 620, reference shaft; 630, connecting bearing; 700, screening net. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objectives, features and advantages of the present application more apparent, a detailed description of the specific embodiments of the present application will be given below with reference to the accompanying drawings.

[0035] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the concept of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0036] Secondly, "one embodiment" or "embodiment" referred to herein means that a specific feature, structure or characteristic can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is separate or alternative to other embodiments.

[0037] Reference Figures 1-8 As shown in the first embodiment of the present application, the embodiment provides a continuous sampling device for water and soil conservation engineering, comprising:

[0038] The outer installation cylinder 100 and the inner roller are coaxially arranged, and the outer installation cylinder 100 and the inner roller both have an upper opening and a top end flush with each other;

[0039] The drill rod insertion assembly 300 arranged on the outer mounting cylinder 100 includes a flow collection box 310 and a plurality of drill rod bars 320 arranged at equal intervals on the flow collection box 310. The flow collection box 310 extends to the outer edge of the inner cylinder, and the flow collection box 310 is provided with an array of spiral flow guide grooves 311. The spiral flow guide groove 311 has an opening section, a horizontal section and an inclined section, which are in communication with each other and extend spirally. The opening section, the horizontal section and the inclined section of the spiral flow guide groove 311 are in communication with each other, and the two ends of the opening section and the inclined section of the spiral flow guide groove 311, which are opposite to each other, are respectively the slurry inlet 312 and the slurry outlet 313. The slurry forms an accelerated spiral flow into the inner cylinder cavity under the guidance of the spiral flow guide groove 311.

[0040] In an embodiment, a sieve 700 is arranged at the slurry inlet 312 of the spiral flow guide groove 311, which is used to sieve out branches, leaves and other sundries, so as to prevent the branches, leaves and other sundries from entering the spiral flow guide groove 311 and blocking the spiral flow guide groove 311.

[0041] The blockage and dirt cleaning assembly 400 is hung on the drill rod insertion assembly 300. One end of the blockage and dirt cleaning assembly 400 penetrates the flow collection box 310 and is provided with a spin-off projection assembly 500, and the other end is rotatably connected with a collection and guide assembly 600. The collection and guide assembly 600 penetrates the inner cylinder and is fixed with the outer mounting cylinder 100. The spin-off projection assembly 500 extends across the flow collection box 310 to the outer opening of the spiral flow guide groove 311 (the outer opening is the slurry inlet 312). When the high-speed vortex cuts into the outer mounting cylinder 100, the blockage and dirt cleaning assembly 400 is impacted to drive the spin-off projection assembly 500 to rotate at a high speed synchronously, so as to project the branches, leaves and other sundries at the outer opening of the spiral flow guide groove 311 to prevent the sundries from accumulating to form a dam. The spiral downward vortex is guided by the collection and guide assembly 600 to directly impact the inner wall of the inner cylinder to drive the outer mounting cylinder 100 to rotate to separate the slurry.

[0042] Referring to Figure 2-Figure 5 As shown in the figure, the flow collection box 310 includes a flow collection bottom ring 314, a plurality of flow collection spiral partitions 315 arranged in an array in the circumferential direction on the flow collection bottom ring 314, and a flow collection cover 316 arranged on the flow collection spiral partitions 315 and parallel to the flow collection bottom ring 314. The flow collection spiral partitions divide the cavity composed of the flow collection bottom ring 314 and the flow collection cover 316 into a plurality of identical cavities to form the spiral flow guide groove 311. The opening section, the horizontal section and the inclined section of the spiral flow guide groove 311 are arranged in a continuous tapering structure.

[0043] In an embodiment, the current collecting cover 316 comprises a horizontal center plate 3161, an outer extension plate 3162 extending upwardly along the outer edge of the horizontal center plate 3161, and an annular triangular ring 3163 attached to the bottom surface of the horizontal center plate 3161; the current collecting bottom ring 314 comprises an integral center bottom plate 3141 and a side bottom plate 3142, the center bottom plate 3141 is located at one side of the outer extension plate 3162 of the side bottom plate 3142, the cross section of the center bottom plate 3141 is triangular, and the cross section of the side bottom plate is rectangular, the upper and lower end surfaces of the current collecting spiral partition plate 315 are connected with the current collecting bottom ring 314 and the current collecting cover 316 respectively to form a tapered channel structure of the continuous segment of the spiral flow guide groove 311, the annular triangular ring 3163 and the triangular cross section of the center bottom plate 3141 form a tapered height difference, the side bottom plate 3142 and the rectangular cross section of the outer extension plate 3162 match to form an equal-width flow channel, and the two cooperate to realize the continuous tapering design of the spiral flow guide groove 311 from the opening segment to the inclined segment, thereby ensuring that the sludge continuously accelerates radially into the inner drum cavity in the spiral motion.

[0044] Referring to Figure 2 and Figure 4 , the inner drum comprises an upper cylinder 210 arranged on the current collecting bottom ring 314, a transfer bearing 220 sleeved on the inner side of the upper cylinder 210, a middle cylinder 230 connected to the transfer bearing 220, and a lower cylinder 240 assembled at the bottom end of the middle cylinder 230, the cross section of the upper cylinder 210 is configured as an L shape, the edge of which extends inwardly from the inner edge of the current collecting bottom ring 314, the inner extension surface of the upper cylinder 210 is connected with a flow guide cone barrel 250 having upper and lower openings, and a triangular connection pad plate 211 is assembled on the extension segment of the upper cylinder 210, the top end of the triangular connection pad plate 211 is sealingly connected with the inclined segment of the current collecting bottom ring 314, and the bottom end is smoothly transitioned with the upper edge of the flow guide cone barrel 250 to form a flow guide slope for slurry spiral flow.

[0045] Referring to Figure 2 and Figure 5 , the blockage and dirt cleaning assembly 400 comprises a rotating shaft 410 coaxially arranged in the inner drum cavity, a plurality of toothed scrapers 420 and a plurality of sheet scrapers 430 distributed in a staggered manner in the circumferential direction, the plurality of toothed scrapers 420 and the plurality of sheet scrapers 430 are assembled on the rotating shaft 410 to rotate synchronously with the rotating shaft 410.

[0046] The side of the toothed scraper 420 facing the flow guide cone barrel 250 is provided with a plurality of tooth grooves, and the rotating shaft 410 drives the toothed scraper 420 and the sheet scraper 430 to rotate to scrape the inner conical surface of the flow guide cone barrel 250.

[0047] In an embodiment, when the high-speed vortex cuts into the inner drum cavity through the upper opening of the draft cone barrel 250, the rotating driving force is formed by the toothed scraper 420 and the blade scraper 430 of the impact unblocking and cleaning assembly 400, the rotating shaft 410 drives the toothed scraper 420 and the blade scraper 430 to rotate synchronously, and the blade scraper 430 and the toothed scraper 420 form periodic scraping on the conical surface in the draft cone barrel 250. When the sludge adheres to the conical surface along the vortex, the toothed comb structure of the toothed scraper 420 periodically scrapes the conical surface in the draft cone barrel 250 to generate a shearing force, which cuts large debris into small pieces and follows the vortex into the lower opening of the draft cone barrel 250. The blade scraper 430 periodically scrapes the conical surface in the draft cone barrel 250 to remove the sludge, which adheres to the outer edge of the blade scraper 430 and enters the lower opening of the draft cone barrel 250 under the periodic scouring of the vortex and the gravity of the sludge itself.

[0048] Referring to Figure 4 As shown in the figure, the spin-off projection assembly 500 includes a connector 510 assembled at the end of the rotating shaft 410 penetrating the collector cover 316, a plurality of centrifugal projection arms 520 evenly circumferentially assembled on the connector 510, and a push piece 530 assembled at the end of the centrifugal projection arm 520 away from the connector 510, the push piece 530 being parallel to the rotating shaft 410;

[0049] The push piece 530 is a thin sheet structure, and the length extension line of the push piece 530 passes through the center of the rotating shaft 410, forming a radial symmetric layout.

[0050] In an embodiment, the push piece 530 is a thin sheet structure, and the length extension line of the push piece 530 passes through the center of the rotating shaft 410, forming a radial symmetric layout. The bottom end of the push piece 530 is flush with the upper surface of the side bottom plate 3142 and does not contact the ground, so as to avoid excessive pressure on the push piece 530 during rotation.

[0051] When the push piece 530 rotates, it forms an area sweeping area, and the shearing force generated by the rotation of the push piece 530 throws out the debris such as leaves and branches accumulated at the sludge inlet 312.

[0052] Referring to Figure 6 and Figure 8 As shown in the figure, the collector assembly 600 includes an inverted conical guide cylinder 610 arranged symmetrically with the draft cone barrel 250, a reference shaft 620 penetrating the lower cylinder 240 and fixedly connected to the outer mounting cylinder 100, the inverted conical guide cylinder 610 is assembled on the reference shaft 620, and the connection between the reference shaft 620 and the rotating shaft 410 and the lower cylinder 240 is provided with a connecting bearing 630, the lower opening of the draft cone barrel 250 has a larger diameter than the shaft diameter of the rotating shaft 410, and the surface of the inverted conical guide cylinder 610 is provided with a spiral collector groove 611.

[0053] Referring to Figure 6 and Figure 8 As shown, the number of spiral set grooves 611 is multiple, each spiral set groove 611 is distributed along the surface of the reverse tapered guide cylinder 610 in a spiral line, the cross section of the groove body of the spiral set groove 611 adopts a trapezoidal structure with the top wide and the bottom narrow, the groove depth increases linearly along the fluid flow direction, and the two side walls are provided with a flow guide inclination angle.

[0054] In one embodiment, when the slurry mixture is ejected from the lower opening of the flow guide cone barrel 250, part of the slurry directly enters the spiral set groove 611, and part enters the surface of the reverse tapered guide cylinder 610. During the vortex downward process, it is transitioned into the groove body of the spiral set groove 611 by the flow guide lip of the two side inclined walls of the spiral set groove 611. The trapezoidal tapered structure of the spiral set groove 611 with the top wide and the bottom narrow further increases the fluid velocity, and the tangential velocity component of the slurry also increases accordingly, so that the slurry impacts the inner wall of the inner drum with a large tangential force.

[0055] Referring to Figure 6 and Figure 7 As shown, the middle cylinder body 230 includes a middle cylinder plate body 231 and a plurality of circumferentially arrayed flow guide push plates 232 assembled on the surface of the middle cylinder plate body 231, and the groove body outlet of the spiral set groove 611 is located at the middle part of the flow guide push plate 232.

[0056] Referring to Figure 2 and Figure 4 As shown, the lower cylinder body 240 includes a lower cylinder plate body 241 connected with the middle cylinder plate body 231, a ring cone type cylinder pad 242 arranged at the bottom end of the middle cylinder plate body 231, and a plurality of overflow holes 243 circumferentially arrayed on the surface of the lower cylinder plate body 241.

[0057] The ring cone type cylinder pad 242 is arranged in an asymmetric frustum shape to form an asymmetric cavity at the lower part of the lower cylinder plate body 241, so that the slurry mixture forms an eccentric force in the cone cavity, which cooperates with the centrifugal force when the inner drum rotates to accelerate the movement of the slurry to the overflow hole 243.

[0058] Working principle: In the sampling operation area of the water and soil conservation project, first dig an adaptive pit according to the size of the device and the sampling demand. Put the continuous sampling device for water and soil conservation project into the pit, so that the outer installation cylinder 100, the inner drum and other components are in a vertical state, the upper edge of the flow collection bottom ring 314 of the plug rod set flow assembly 300 is flush with the ground, and the plug rod 320 is deeply inserted into the ground. Complete the initial placement.

[0059] When the external mud water contacts the device, it is collected by the distribution area of the collecting box 310 of the drill rod insertion flow assembly 300, and the mud water is first filtered by the screening net 700 at the mud water inlet 312 to remove branches and leaves and other sundries, so that the mud water enters the spiral flow guide groove 311, avoiding the blockage of sundries and affecting the flow process; after the mud water enters the spiral flow guide groove 311, the spiral flow guide groove 311 has an opening section, a horizontal section and an inclined section, and the opening section, the horizontal section and the inclined section of the spiral flow guide groove 311 are connected and arranged in a spiral extension structure, forming an accelerated spiral flow in the spiral flow guide groove 311. The collecting bottom ring 314, the collecting spiral partition plate 315 and the collecting cover 316 of the collecting box 310 cooperate to make the spiral flow guide groove 311 have a continuous taper structure, so that the mud water continuously accelerates in the spiral motion and finally cuts into the inner drum cavity radially.

[0060] When the high-speed vortex mud water passes through the triangular transition pad plate 211 and cuts into the inner drum, it impacts the blockage and pollution cleaning assembly 400, and then synchronously drives the spin-off throwing assembly 500 to rotate at a high speed. The connecting head 510, the centrifugal throwing arm 520 and the pushing piece 530 of the spin-off throwing assembly 500 cooperate, the pushing piece 530 rotates to form a sweeping area, and the shearing force of the ring cone type cylinder pad block 242 is used to throw out the leaves, branches and other sundries completely intercepted or newly attached by the screening net 700 at the mud water inlet 312, preventing the sundries from accumulating at the mud water inlet 312 to form a dam, ensuring the continuous and smooth flow of mud water into the device, and avoiding the accumulation of branches and weeds at this place to form a fluffy structure, so that the problem of "new water body difficult to cut in and ineffective mixing with existing water" is solved, so as to ensure soil sampling and improve sampling accuracy. Because the fluffy structure is cleaned in time, the soil particles carried by the mud water will not be blocked by the fluffy structure formed by the accumulation of branches and weeds. The high-speed vortex can continuously wrap the soil particles, accelerate them in the spiral flow guide groove 311, separate them in the inner drum, and then stably enter the subsequent sampling link.

[0061] The high-speed vortex cuts into the inner drum cavity through the upper opening of the flow guide cone barrel 250, and impacts the tooth scraper 420 and the sheet scraper 430 of the blockage and pollution cleaning assembly 400, forming a rotating driving force to make the rotating shaft 410 rotate synchronously. The tooth scraper 420 cuts and breaks the large sundries attached to the conical surface by the tooth comb structure, and the sheet scraper 430 periodically scrapes and removes the sludge, so that the broken sundries and sludge enter the lower opening of the flow guide cone barrel 250 along with the vortex, completing the preliminary sludge cleaning and sundry refinement.

[0062] After the mud water mixture is ejected from the lower opening of the flow guide cone barrel 250, part of the mud water enters the spiral collecting groove 611 of the reverse conical guide cylinder 610 of the collecting assembly 600, and the other part of the mud water flows to the surface of the reverse conical guide cylinder 610. After transition through the inclined wall flow guide lip on both sides of the spiral collecting groove 611, the mud water is further accelerated in the spiral collecting groove 611 due to the trapezoidal taper structure of the upper wide and lower narrow, and the tangential velocity component increases to cut the inner drum inner wall with a larger impact force.

[0063] When the high-speed slurry is accelerated by the spiral collecting channel 611, the tangential impact of the flow guide push plate 232 on the inner drum surface will convert the fluid kinetic energy into the rotational torque of the inner drum. The inner drum is fixedly connected to the outer mounting cylinder 100 through the reference shaft 620, and rotates around the axis of the reference shaft 620 as the center, and the position remains unchanged. At this time, the center of gravity of the asymmetric conical ring-shaped cylinder pad 242 at the bottom of the lower cylinder body 240 is offset so that it forms an “eccentric rotation effect” during rotation, that is, when the inner drum rotates around the fixed axis, due to the uneven mass distribution of the ring-shaped cylinder pad 242, the rotating shaft 410 generates a periodic centrifugal torque, like an “eccentric wheel” stirring the fluid, intensifying the turbulence of the flow field in the cylinder.

[0064] In the turbulent flow field, the asymmetric conical surface of the ring-shaped cylinder pad 242 guides the fluid trajectory: the slurry near the steep slope side obtains a greater radial velocity due to the centrifugal force, and a low-speed area is formed on the gentle slope side, and a pressure difference is formed in the conical cavity, forcing the fluid to climb upward along the conical surface, forming a spiral upward vortex flow. Since the density of water is much smaller than that of silt, it is pushed to the central low-pressure area in the vortex and flows upward to the overflow hole 243 at the top of the inner drum for discharge; the silt particles slide to the bottom and deposit due to the action of gravity and the vortex component force because of their large inertia.

[0065] During this process, the inner drum always remains in a fixed position and only cooperates with the eccentric design of the ring-shaped cylinder pad 242 to construct a separation flow field. The scraping of the cleaning and dredging assembly and the continuous energy supply of the spiral collecting channel 611 ensure the vortex intensity and separation efficiency, and finally achieve the precise separation of water from the overflow hole 243 and silt in the inner drum.

[0066] The continuous sampling device designed in the present application does not need to be driven by electricity, and the kinetic energy of the water body itself is used to collect the slurry: the external slurry is collected into the spiral flow guide groove 311 through the drill bit collecting assembly 300, and is accelerated to form a high-speed vortex by the tapered spiral structure, which impacts the cleaning and dredging assembly 400 in the inner drum to drive the spin-off and projection assembly 500 to rotate to remove the inlet debris, at the same time, the vortex drives the inner drum to rotate, and the eccentric disturbance caused by the asymmetric ring-shaped cylinder pad 242 at the bottom causes the slurry to form a spiral upward vortex in the cylinder, and the water is discharged from the overflow hole 243 due to its small density, and the silt remains in the inner drum. The kinetic energy of the water body is converted into separation power through the entire process of fluid mechanics design, realizing continuous sampling without power consumption. Of course, the above content is only a preferred embodiment of the present application, and cannot be considered as limiting the scope of the embodiments of the present application. The present application is also not limited to the above examples, and equivalent changes and improvements made by ordinary skilled persons in the technical field within the essential scope of the present application should be attributed to the patent coverage range of the present application.

[0067] Finally should be explained a few points: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the term "installation", "connected", "connection" should be broad, can be mechanical or electrical connection, but also can be two elements inside the communication, can be directly connected, "up", "down", "left", "right" and so on, only for indicating the relative position relationship, when the absolute position of the described object changes, the relative position relationship may change;

[0068] Second: the present application discloses the structure in the embodiment of the drawings involved in the embodiment of the present disclosure only, other structures can refer to the usual design, in the case of no conflict, the same embodiment and different embodiments of the present application can be combined with each other;

[0069] Finally: the above is only the preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A continuous sampling device for soil and water conservation engineering, which is used for the collection process in the water pollution detection process, and is characterized by: include: An outer mounting cylinder (100) and an inner drum are coaxially arranged, wherein both the outer mounting cylinder (100) and the inner drum have upper openings and their top ends are flush; A plug-in current collecting assembly (300) is arranged on the outer mounting cylinder (100), wherein the current collecting box (310) extends to the outer edge of the inner drum, and the current collecting box (310) is provided with spiral guide grooves (311) arranged in an array, wherein the spiral guide grooves (311) have an opening section, a horizontal section, and an inclined section, and muddy water is guided by the spiral guide grooves (311) to form an accelerated spiral flow and cut into the inner drum cavity; A blockage and pollution removal assembly (400) is hoisted on a plugging and collecting assembly (300), and one end of the blockage and pollution removal assembly (400) passing through a collecting box (310) is equipped with a spin-off ejection assembly (500), and the other end is rotatably connected to a collecting and guiding assembly (600). The collecting and guiding assembly (600) passes through an inner drum and an outer mounting cylinder (100) and is fixed thereto. The spin-off ejection assembly (500) spans the collecting box (310) and spreads to the outer opening of a spiral guide groove (311). When a high-speed eddy current cuts into the outer mounting cylinder (100), the impact blockage and pollution removal assembly (400) drives the spin-off ejection assembly (500) to rotate synchronously at a high speed to eject debris at the outer opening of the spiral guide groove (311). The spirally downward eddy current is integrated and guided by the collecting and guiding assembly (600) to directly hit the inner wall of the inner drum, driving the outer mounting cylinder (100) to rotate to separate mud and water.

2. The continuous sampling device for soil and water conservation engineering according to claim 1, characterized in that: The collecting box (310) comprises a collecting bottom ring (314), a plurality of collecting spiral partitions (315) distributed in a circumferential array on the collecting bottom ring (314), and a collecting cover (316) assembled on the collecting spiral partition (315) and parallel to the collecting bottom ring (314), wherein the collecting spiral partition divides the chamber formed by the collecting bottom ring (314) and the collecting cover (316) into a plurality of congruent chambers to form a spiral guide groove (311), and the opening section, horizontal section and inclined section of the spiral guide groove (311) are arranged in a continuous tapered structure.

3. The continuous sampling device for soil and water conservation engineering according to claim 2, characterized in that: The inner drum comprises an upper cylinder (210) arranged on a current collecting bottom ring (314), a transfer bearing (220) sleeved on the inner side of the upper cylinder (210), a middle cylinder (230) with a bearing connected to the transfer bearing (220), and a lower cylinder (240) assembled on the bottom end of the middle cylinder (230). The cross section of the upper cylinder (210) is configured to be L-shaped, and its edge extends inward from the inner edge of the current collecting bottom ring (314). The periphery of the inner extension surface of the upper cylinder (210) is connected to a guide cone barrel (250) with upper and lower openings. A triangular connecting pad (211) is assembled on the extension section of the upper cylinder (210). The top end of the triangular connecting pad (211) is sealed with the inclined section of the current collecting bottom ring (314), and the bottom end smoothly transitions to the upper edge of the guide cone barrel (250) to form a guide slope for spiral flow of mud and water.

4. The continuous sampling device for soil and water conservation engineering according to claim 3, characterized in that: The blockage and dirt removal assembly (400) comprises a rotating shaft (410) coaxially arranged in the inner drum chamber, a plurality of tooth scrapers (420) and a plurality of scrapers (430) distributed in a staggered circumferential direction, wherein the plurality of tooth scrapers (420) and the plurality of scrapers (430) are assembled on the rotating shaft (410) to rotate synchronously with the rotating shaft (410); The tooth scraper (420) is provided with a plurality of tooth grooves on a side facing the guide cone barrel (250), and the rotating shaft (410) drives the tooth scraper (420) and the blade scraper (430) to rotate so as to scrape the inner conical surface of the guide cone barrel (250).

5. The continuous sampling device for soil and water conservation engineering according to claim 4, characterized in that: The spin-off ejection assembly (500) comprises a connector (510) mounted on the end of the rotating shaft (410) passing through the collecting cover (316), a plurality of centrifugal ejection arms (520) circumferentially mounted on the connector (510) at equal intervals, and a pusher (530) mounted on the end of the centrifugal ejection arm (520) facing away from the connector (510), wherein the pusher (530) is parallel to the rotating shaft (410).

6. The continuous sampling device for soil and water conservation engineering according to claim 5, characterized in that: The pushing piece (530) is a thin sheet structure, and the length extension line of the pushing piece (530) passes through the center of the rotating shaft (410), forming a radially symmetrical layout.

7. The continuous sampling device for soil and water conservation engineering according to claim 6, characterized in that: The collecting and guiding assembly (600) comprises an inverted conical guide cylinder (610) symmetrically arranged with the guide cone barrel (250), and a reference shaft (620) penetrating the lower cylinder (240) and fixed to the outer mounting cylinder (100). The inverted conical guide cylinder (610) is assembled on the reference shaft (620), and the connection between the reference shaft (620), the rotating shaft (410) and the lower cylinder (240) is provided with a connecting bearing (630). The lower opening diameter of the guide cone barrel (250) is larger than the axis diameter of the rotating shaft (410), and the surface of the inverted conical guide cylinder (610) is provided with a spiral collecting and guiding groove (611).

8. The continuous sampling device for soil and water conservation engineering according to claim 7, characterized in that: There are a plurality of spiral collecting grooves (611), each of which is circumferentially distributed in a spiral pattern along the surface of the inverse-conical guide cylinder (610). The cross section of the spiral collecting groove (611) adopts a trapezoidal structure that is wide at the top and narrow at the bottom. The groove depth increases linearly along the flow direction of the fluid, and the groove walls on both sides are provided with a diversion angle.

9. The continuous sampling device for soil and water conservation engineering according to claim 8, characterized in that: The middle cylinder (230) comprises a middle cylinder plate (231) and a plurality of circumferentially arrayed flow guide push plates (232) mounted on the surface of the middle cylinder plate (231); the groove outlet of the spiral collecting groove (611) is located in the middle of the flow guide push plate (232).

10. The continuous sampling device for soil and water conservation engineering according to claim 9, characterized in that: The lower cylinder (240) comprises a lower cylinder plate (241) connected to the middle cylinder plate (231), and a conical cylinder pad (242) arranged at the bottom end of the middle cylinder plate (231). The surface of the lower cylinder plate (241) is provided with a plurality of overflow holes (243) arranged in a circumferential array. The annular cone-shaped cylinder pad (242) is arranged in an asymmetric cone shape to form an asymmetric cavity at the lower portion of the lower cylinder plate (241).

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