Foundation detection sampling device for water conservancy project and use method of foundation detection sampling device

Abstract

The invention discloses a foundation detection sampling device for hydraulic engineering and a use method thereof, and belongs to the technical field of hydraulic engineering. The foundation detection sampling device for the water conservancy project comprises a base and further comprises a top plate arranged on the upper side of the base, and a connecting rod is arranged between the top plate and the base; the sampling barrel is movably arranged at the position of the base, a drill bit is arranged at the bottom of the sampling barrel, a feeding port communicated with the sampling barrel is formed in the drill bit, and a separation assembly used for cutting soil is arranged in the drill bit; a soil sample collected in the sampling barrel is cut and separated from ground soil through the separation assembly, the collected soil sample can smoothly move upwards along with the sampling barrel, the sampling success rate is guaranteed, the soil collected in the sampling barrel is separated from the inner wall of the sampling barrel through the slitting plate, the soil sample moved upwards along with the sampling barrel can be completely taken out, and the sampling efficiency is improved. The integrity of the undisturbed degree and the bottom structure of the taken soil sample is ensured, and the accuracy of measurement results such as soil bulk density is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy engineering, and in particular to a foundation detection sampling device for water conservancy engineering and a use method thereof. Background Art

[0002] The geological conditions at the foundation of a water conservancy project have a decisive influence on the construction, quality and durability of the foundation after construction. Before the design and construction of a water conservancy project, it is necessary to sample and test the soil at the site of the water conservancy project, and then determine the location of the foundation of the water conservancy project after comprehensive comparison of the test results.

[0003] In the prior art, the patent application number CN202021903828.5 discloses a foundation detection sampling device for water conservancy projects, which controls the motor to drive the sampling tube to rotate through the connecting column, enter under the soil, and take soil samples. However, in the specific operation process, it is impossible to separate the bottom of the sample from the foundation body, and it is impossible to ensure that the sample will rise with the rise of the sampling tube, and thus the success rate of sampling cannot be guaranteed; and after the sampling tube is moved out of the ground, it still needs to be sampled again. The electric push rod drives the push plate to move down, and the soil sample is pushed out of the sampling tube. The soil sample in the sampling tube is squeezed by the push plate, and the internal structure of the soil changes. It is impossible to ensure that the original state of the soil sample is intact, which reduces the accuracy of the measurement results such as soil bulk density. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a foundation detection sampling device for water conservancy projects and a method of using the same.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A foundation detection sampling device for water conservancy projects, comprising a base and: A top plate, the top plate is arranged on the upper side of the base, and a connecting rod is arranged between the top plate and the base; A sampling barrel, the sampling barrel is movably arranged at the base, a drill bit is arranged at the bottom of the sampling barrel, a feed port connected to the sampling barrel is opened on the drill bit, and a separation component for dividing the soil is arranged inside the drill bit; A lifting assembly, which is arranged between the base and the top plate and is used to drive the sampling tube to move vertically; A driving mechanism, the driving mechanism comprising a driving assembly for driving the sampling barrel to rotate and a transmission assembly connected to the driving assembly and used to drive the lifting assembly to work; Wherein, a dividing plate abutting against the inner wall of the sampling tube is fixedly provided on the top plate.

[0006] Preferably, the driving assembly includes a driving motor fixed on the top plate, the output shaft of the driving motor passes through the top plate and is connected to the main gear, the bottom of the top plate is rotatably connected to a gear ring that meshes with the main gear, a telescopic plate is fixed to the bottom of the gear ring, a first elastic telescopic rod is arranged on the telescopic plate, one end of the first elastic telescopic rod away from the telescopic plate is connected to the sampling tube, and a rotating ring is fixed to the outer side of the telescopic plate.

[0007] Preferably, the lifting assembly includes a screw rod rotatably disposed between the base and the top plate, a sleeve is threadedly connected to the screw rod, and the sleeve is slidably connected to a rotating ring.

[0008] Preferably, the transmission assembly includes a pinion fixedly connected to the output shaft, and the screw rod is provided with a driven gear meshing with the pinion, and the pinion and the driven gear are both rotatably connected in a cavity opened on the top plate.

[0009] Preferably, the separation component includes a receiving groove opened in the drill bit and connected to the feed port, a dividing plate is slidably connected in the receiving groove, a return spring is arranged between the dividing plate and the inner wall of the receiving groove, one end of the dividing plate is connected to a pull rope, the end of the pull rope away from the dividing plate passes through the drill bit and is connected to a force-bearing plate, the force-bearing plate and the top wall of the base are movably abutted against each other, a sliding groove for sliding the force-bearing plate is opened on the sampling barrel, a third elastic telescopic rod is arranged between the inner wall of the sliding groove and the force-bearing plate, and a fixed pulley slidably connected to the pull rope is arranged on the sampling barrel.

[0010] Preferably, the sampling tube includes two arc-shaped outer shells, the arc-shaped outer shells are connected to the first elastic telescopic rod, the top of the arc-shaped outer shell is provided with a curved surface, the cutting plate includes an upper rod body that is movably abutted against the curved surface and a lower cutting plate that is movably abutted against the inner wall of the arc-shaped outer shell, a support plate is fixed on the drill bit, and a second elastic telescopic rod is arranged between the support plate and the arc-shaped outer shell.

[0011] Preferably, a first groove is provided at the bottom of the arc-shaped shell, a first clamping block which is slidably connected in the first groove and is movably abutted against the dividing plate, a first elastic element is arranged between the first clamping block and the inner wall of the first groove, a first inclined surface is provided at one end of the first clamping block away from the first elastic element, and a first clamping groove which cooperates with the first clamping block is provided on the drill bit.

[0012] Preferably, a second groove is provided on the dividing plate, a second clamping block is slidably connected in the second groove, a second elastic element is provided between the second clamping block and the inner wall of the second groove, a second inclined surface is provided at the end of the second clamping block away from the second elastic element, a second clamping groove matching with the second clamping block is provided on the drill bit, a third groove is provided at the bottom of the arc-shaped shell, a push block is slidably connected in the third groove and movably abuts against the second clamping block, and a third elastic element is provided between the push block and the inner wall of the third groove.

[0013] Preferably, a plurality of movable grooves are circumferentially provided on the inner wall of the feed port, a swing rod is rotatably connected to each of the movable grooves via a pin shaft, a torsion spring is sleeved on the pin shaft for driving the swing rod to reset and rotate, a receiving plate is provided at the end of the swing rod, a groove is provided in the receiving plate, a buffer plate is slidably connected to the groove up and down, and a buffer spring is provided between the buffer plate and the inner wall of the groove.

[0014] The present invention also discloses a method for using a foundation detection sampling device for a water conservancy project, comprising the following steps: S1: During sampling, the base is placed on the ground, the drive motor is controlled to run, and the output shaft of the drive motor drives the main gear and the auxiliary gear to rotate; The main gear meshes with the gear ring for transmission, and the gear ring drives the sampling tube to rotate through the telescopic plate and the first elastic telescopic rod; The secondary gear meshes with the driven gear on the screw, and the driven gear drives the screw to rotate, and the sleeve moves downward along the screw axis. When the sleeve moves downward, the telescopic plate is stretched through the rotating ring, so that when the sleeve moves downward, the rotating sampling tube is driven to move. The sampling tube is drilled into the ground through the drill bit at the bottom. The swing rod at the feed inlet is pressed by the soil and fits the inner wall of the feed inlet, and the soil enters the sampling tube through the feed inlet; S2: As the sampling tube continues to penetrate into the soil, the amount of soil collected in the sampling tube increases, and then the force plate abuts against the top surface of the base, and the force plate is lifted relative to the sampling tube that continues to move downward, the third elastic telescopic rod is compressed, and the force plate pulls the dividing plate through the pull rope, so that the dividing plate moves horizontally in the receiving groove, and the dividing plate separates the soil entering the sampling tube from other underground soil, and blocks the feed port, so that the soil sample in the sampling tube is no longer adhered to other soil; When the dividing plate moves horizontally, it pushes the first card block inserted into the first card slot, so that the first card block moves upward to press the first elastic element, and the first inclined surface of the first card block is placed in the first card slot, and the positions of the sampling tube and the drill bit are no longer limited; When the partition plate moves horizontally, the second clamping block is driven to move synchronously. When the partition plate blocks the feed inlet, the second clamping block is aligned with the second clamping groove. The second clamping block enters the second clamping groove under the elastic force of the second elastic element, and the positions of the partition plate and the drill bit are limited. S3: Then the driving motor drives the main gear and the sub-gear to rotate in the opposite direction through the output shaft, and the sleeve moves upward along the axial direction of the screw rod. The sleeve drives the sampling tube to move upward through the rotating ring, the telescopic plate and the first elastic telescopic rod, and the sampling tube moves upward with the soil sample collected inside; The sampling tube rotates during the upward movement, and the inner wall of the sampling tube fits with the lower cutting plate, and the lower cutting plate cuts the sampling tube and the soil sample adhered to it, so that the soil sample on the inner wall of the sampling tube is no longer adhered to the inner wall of the sampling tube; As the sampling tube continues to move upward, the curved surface at the top of the sampling tube abuts against the upper rod body, and the two arc-shaped shells of the sampling tube are separated by force, thereby increasing the distance between the sampling tube and the internal soil sample; When the arc-shaped housing moves, the push block at the bottom moves to the second card slot, and the push block is pushed down by the elastic force of the third elastic element to press the second card block in the second card slot, and the second card block shrinks into the second groove, releasing the restriction between the partition plate and the drill bit, and the partition plate moves back under the pull of the reset spring, and the partition plate no longer blocks the feed port of the drill bit, preparing for subsequent soil sampling; S4: The soil sample collected in the sampling tube is no longer adhered to the inner wall of the sampling tube on the sides and is no longer supported by the bottom dividing plate. The soil sample falls under its own gravity. The swing arm at the feed inlet is reset and rotated under the action of the torsion spring when the drill bit moves out of the ground. The columnar soil sample first contacts the buffer plate to reduce the descending height of the columnar soil sample. The deformation of the buffer spring buffers the downward force of the columnar soil sample. Finally, the receiving plate supports the columnar soil sample. The staff then continues to manually separate the arc-shaped outer shells on both sides and removes the columnar soil sample from the receiving plate for testing.

[0015] Compared with the prior art, the present invention provides a foundation detection sampling device for water conservancy projects and a method of using the same, which has the following beneficial effects: 1. The foundation detection sampling device for water conservancy projects and the use method thereof cut and separate the soil sample collected in the sampling tube from the ground soil through a separation component, so that the collected soil sample can be smoothly moved up with the sampling tube, ensuring the success rate of sampling, and the cutting plate separates the soil collected in the sampling tube from the inner wall of the sampling tube, so that the soil sample can be completely taken out after moving up with the sampling tube, ensuring the original state of the taken soil sample and the integrity of the bottom structure, and improving the accuracy of the measurement results such as soil bulk density.

[0016] 2. The foundation detection sampling device for water conservancy projects and the method of using the same, when the separation component is working, the dividing plate separates the soil entering the sampling tube from other underground soil and blocks the feed port, and the lateral movement of the dividing plate drives the second clamping block to move synchronously. When the dividing plate blocks the feed port, the second clamping block is aligned with the second clamping slot, and the second clamping block enters the second clamping slot under the elastic force of the second elastic element. The positions of the dividing plate and the drill bit are limited, so that the dividing plate maintains a blocked state for the feed port during the upward movement of the sampling tube, thereby preventing the soil collected in the sampling tube from automatically sliding off, and further improving the success rate of sampling.

[0017] 3. The foundation detection sampling device for water conservancy projects and the method of using the same are characterized in that the swing rod at the feed inlet is reset and rotated under the action of the torsion spring when the drill bit moves out of the ground. After the columnar soil sample in the sampling tube is no longer supported by the dividing plate, the columnar soil sample falls under the action of its own gravity and first contacts the buffer plate, thereby reducing the falling height of the columnar soil sample. The deformation of the buffer spring buffers the downward force of the columnar soil sample, thereby reducing the downward force of the columnar soil. Finally, the receiving plate supports the columnar soil sample, thereby further ensuring the integrity of the original state and internal structure of the columnar soil sample and ensuring the accuracy of subsequent detection results of the soil sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The structure of the present invention is schematically shown Figure 1 ; Figure 2 The structure of the present invention is schematically shown Figure 2 ; Figure 3 It is a schematic diagram of the structure of the sampling tube of the present invention when it is separated; Figure 4 For the present invention Figure 3 A schematic diagram of the cross-sectional structure of the lower part; Figure 5 For the present invention Figure 4 A partial enlarged structural diagram of the middle part; Figure 6 It is a schematic diagram of the cross-sectional structure of the top plate of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the partially enlarged structure of the middle B part; Figure 8 For the present invention Figure 6 A schematic diagram of the partially enlarged structure of the middle C part; Fig. 9 It is a schematic diagram of the structure of the separation component of the present invention when it is working; Fig.10 is a schematic diagram of the cross-sectional structure of the partition plate of the present invention; Fig.11 It is a schematic structural diagram of the bottom of the arc-shaped housing of the present invention.

[0019] In the figure: 1, base; 101, connecting rod; 2, top plate; 3, sampling tube; 301, arc-shaped shell; 4, drill bit; 401, feed port; 402, first slot; 403, second slot; 5, cutting plate; 501, upper rod body; 502, lower cutting plate; 6, driving motor; 601, output shaft; 6011, main gear; 6012, secondary gear; 602, gear ring; 603, telescopic plate; 604, first elastic telescopic rod; 605, rotating ring; 7, screw; 701, sleeve; 702, driven gear; 8, support plate; 801, second Elastic telescopic rod; 9, first groove; 901, first clamping block; 902, first elastic element; 10, accommodating groove; 11, dividing plate; 111, reset spring; 112, pull rope; 113, force plate; 12, slide groove; 121, third elastic telescopic rod; 13, fixed pulley; 14, second groove; 141, second clamping block; 142, second elastic element; 15, third groove; 151, push block; 152, third elastic element; 16, movable groove; 161, swing rod; 162, receiving plate; 163, buffer plate; 164, buffer spring. DETAILED DESCRIPTION

[0020] 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.

[0021] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] Example 1: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 , a foundation detection sampling device for water conservancy projects, comprising a base 1, and also comprising: A top plate 2, which is disposed on the upper side of the base 1, and a connecting rod 101 is disposed between the top plate 2 and the base 1; A sampling tube 3, the sampling tube 3 is movably arranged at the base 1, a drill bit 4 is arranged at the bottom of the sampling tube 3, a feed port 401 connected to the sampling tube 3 is opened on the drill bit 4, and a separation component for dividing the soil is arranged in the drill bit 4; A lifting assembly, which is arranged between the base 1 and the top plate 2 and is used to drive the sampling tube 3 to move vertically; The driving mechanism includes a driving assembly for driving the sampling tube 3 to rotate and a transmission assembly connected to the driving assembly and used to drive the lifting assembly to work; A dividing plate 5 is fixedly provided on the top plate 2 and abuts against the inner wall of the sampling tube 3 .

[0023] Specifically, the base 1 is placed on the ground of the area to be sampled, and the driving mechanism is controlled to operate. The driving mechanism drives the sampling tube 3 to rotate and drives the lifting component to work. The lifting component drives the rotating sampling tube 3 to move downward, and the sampling tube 3 penetrates into the soil through the drill bit 4 at the bottom, and the soil enters the sampling tube 3 through the feed port 401 of the drill bit 4. After the soil sample is collected in the sampling tube 3, the separation component automatically works to separate the soil sample in the sampling tube 3 and the soil on the lower side, so that the collected soil sample can be smoothly moved up with the sampling tube 3 to ensure the success rate of sampling. Subsequently, the driving motor 6 controls the lifting component to drive the sampling tube 3 to move upward, and the cutting plate 5 automatically separates the soil adhered to the inner wall of the sampling tube 3 to avoid the soil from being broken or missing when it is taken out of the sampling tube 3, thereby ensuring the original state of the taken soil sample and the integrity of the bottom structure, and improving the accuracy of the measurement results such as soil bulk density.

[0024] Example 2: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 , a foundation detection sampling device for water conservancy projects, based on Example 1, further, the driving component includes a driving motor 6 fixedly mounted on the top plate 2, the output shaft 601 of the driving motor 6 passes through the top plate 2 and is connected to a main gear 6011, the bottom of the top plate 2 is rotatably connected to a gear ring 602 meshing with the main gear 6011, a telescopic plate 603 is fixedly mounted at the bottom of the gear ring 602, a first elastic telescopic rod 604 is arranged on the telescopic plate 603, one end of the first elastic telescopic rod 604 away from the telescopic plate 603 is connected to the sampling tube 3, and a rotating ring 605 is fixedly mounted on the outer side of the telescopic plate 603.

[0025] Furthermore, the lifting assembly includes a screw rod 7 rotatably disposed between the base 1 and the top plate 2 , a sleeve 701 is threadedly connected to the screw rod 7 , and the sleeve 701 is slidably connected to the rotating ring 605 .

[0026] Furthermore, the transmission assembly includes a sub-gear 6012 fixedly connected to the output shaft 601 , and a driven gear 702 meshing with the sub-gear 6012 is provided on the screw rod 7 , and both the sub-gear 6012 and the driven gear 702 are rotatably connected in a cavity opened on the top plate 2 .

[0027] Specifically, the driving mechanism works to control the operation of the driving motor 6. The output shaft 601 of the driving motor 6 drives the main gear 6011 and the sub-gear 6012 to rotate. The main gear 6011 is meshed with the gear ring 602 for transmission. The gear ring 602 drives the sampling barrel 3 to rotate through the telescopic plate 603 and the first elastic telescopic rod 604. The sub-gear 6012 is meshed with the driven gear 702 on the screw 7. The driven gear 702 drives the screw 7 to rotate. The sleeve 701 moves downward along the axis of the screw 7. When the sleeve 701 moves downward, the telescopic plate 603 is stretched through the rotating ring 605, so that when the sleeve 701 moves downward, the rotating sampling barrel 3 is driven to move. The sampling barrel 3 is drilled into the ground through the drill bit 4 at the bottom, and the soil enters the sampling barrel 3 through the feed port 401, thereby realizing the sampling work of the sampling barrel 3.

[0028] Example 3: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 , a foundation detection sampling device for water conservancy projects, based on Example 2, further, the separation component includes a receiving groove 10 opened in the drill bit 4 and connected to the feed port 401, a dividing plate 11 is slidably connected in the receiving groove 10, a reset spring 111 is arranged between the dividing plate 11 and the inner wall of the receiving groove 10, one end of the dividing plate 11 is connected to a pull rope 112, the end of the pull rope 112 away from the dividing plate 11 passes through the drill bit 4 and is connected to a force plate 113, the force plate 113 is movably abutted against the top wall of the base 1, a slide groove 12 for the force plate 113 to slide is opened on the sampling tube 3, a third elastic telescopic rod 121 is arranged between the inner wall of the slide groove 12 and the force plate 113, and a fixed pulley 13 slidably connected to the pull rope 112 is arranged on the sampling tube 3.

[0029] Specifically, as the sampling tube 3 continues to penetrate into the soil, the amount of soil collected in the sampling tube 3 increases, and then the force plate 113 abuts against the top surface of the base 1. The force plate 113 is lifted relative to the sampling tube 3 that continues to move downward, and the third elastic telescopic rod 121 is compressed. The force plate 113 is guided by the pull rope 112 through the fixed pulley 13 to pull the dividing plate 11, so that the dividing plate 11 moves horizontally in the accommodating groove 10. The dividing plate 11 separates the soil entering the sampling tube 3 from other underground soil, and blocks the feed port 401, so that the soil sample in the sampling tube 3 is no longer adhered to other soil, so that the collected soil sample can move up smoothly with the sampling tube 3, thereby ensuring the success rate of sampling.

[0030] Example 4: Reference Figure 1-11, a foundation detection sampling device for water conservancy projects, based on Example 3, further, the sampling tube 3 includes two arc-shaped shells 301, the arc-shaped shell 301 is connected to the first elastic telescopic rod 604, the top of the arc-shaped shell 301 is provided with a curved surface, the cutting plate 5 includes an upper rod body 501 that is movably abutted against the curved surface and a lower cutting plate 502 that is movably abutted against the inner wall of the arc-shaped shell 301, a support plate 8 is fixed on the drill bit 4, and a second elastic telescopic rod 801 is arranged between the support plate 8 and the arc-shaped shell 301.

[0031] Furthermore, a first groove 9 is provided at the bottom of the arc-shaped outer shell 301, and a first clamping block 901 is slidably connected in the first groove 9 and movably abuts against the dividing plate 11. A first elastic element 902 is arranged between the first clamping block 901 and the inner wall of the first groove 9. A first inclined surface is provided at one end of the first clamping block 901 away from the first elastic element 902, and a first clamping groove 402 cooperating with the first clamping block 901 is provided on the drill bit 4.

[0032] Furthermore, a second groove 14 is provided on the dividing plate 11, and a second clamping block 141 is slidably connected in the second groove 14, a second elastic element 142 is arranged between the second clamping block 141 and the inner wall of the second groove 14, and a second inclined surface is provided at the end of the second clamping block 141 away from the second elastic element 142, a second clamping groove 403 matching with the second clamping block 141 is provided on the drill bit 4, a third groove 15 is provided at the bottom of the arc-shaped shell 301, a push block 151 movably abutting against the second clamping block 141 is slidably connected in the third groove 15, and a third elastic element 152 is arranged between the push block 151 and the inner wall of the third groove 15.

[0033] Specifically, when the separation component is working, the partition plate 11 moves horizontally to push the first card block 901 inserted into the first card slot 402, so that the first card block 901 moves up to squeeze the first elastic element 902, and the first inclined surface of the first card block 901 is placed in the first card slot 402. The positions of the sampling tube 3 and the drill bit 4 are no longer limited. Before this, the positions of the sampling tube 3 and the drill bit 4 were limited in order to prevent the two arc-shaped shells 301 from being separated by the soil when the sampling tube 3 is sampling, thereby affecting the sampling effect of the sampling tube 3. When the dividing plate 11 moves horizontally, it drives the second clamping block 141 to move synchronously. When the dividing plate 11 blocks the feed inlet 401, the second clamping block 141 is aligned with the second clamping groove 403. The second clamping block 141 enters the second clamping groove 403 under the elastic force of the second elastic element 142. The positions of the dividing plate 11 and the drill bit 4 are limited, so that the dividing plate 11 keeps blocking the feed inlet 401 during the upward movement of the sampling tube 3, thereby preventing the soil collected in the sampling tube 3 from automatically sliding down, and further improving the success rate of sampling. The driving mechanism then drives the rotating sampling tube 3 to move upward through the lifting assembly. Since the inner wall of the sampling tube 3 fits the lower cutting plate 502, the lower cutting plate 502 cuts the sampling tube 3 and the soil sample adhered to it, so that the soil sample on the inner wall of the sampling tube 3 is no longer adhered to the inner wall of the sampling tube 3, thereby preventing the soil from being lost or broken due to adhesion to the inner wall of the sampling tube 3 when being taken out from the sampling tube 3. As the sampling tube 3 continues to move upward, the curved surface at the top of the sampling tube 3 abuts against the upper rod body 501, and the two arc-shaped shells 301 of the sampling tube 3 are separated by force, thereby increasing the distance between the sampling tube 3 and the internal soil sample, making it convenient for the staff to completely take out the soil sample collected in the sampling tube 3, thereby ensuring the original state of the taken out soil sample and the integrity of the bottom structure, and improving the accuracy of the measurement results such as soil bulk density; When the arc-shaped housing 301 moves, the push block 151 at the bottom moves to the second slot 403. The push block 151 is pushed by the elastic force of the third elastic element 152 to press down the second block 141 in the second slot 403. The second block 141 shrinks into the second groove 14, releasing the restriction of the partition plate 11 and the drill bit 4. The partition plate 11 moves back under the pull of the reset spring 111. The partition plate 11 no longer blocks the feed port 401 of the drill bit 4, preparing for subsequent soil sampling.

[0034] Example 5: Reference Figure 3 , Figure 4 and Fig. 9 A foundation detection sampling device for water conservancy projects, based on Example 4, further, a plurality of movable grooves 16 are opened in a circle on the inner wall of the feed port 401, and a swing rod 161 is rotatably connected to each movable groove 16 through a pin shaft, and a torsion spring for driving the swing rod 161 to reset and rotate is sleeved on the pin shaft, and a receiving plate 162 is provided at the end of the swing rod 161, and a groove is opened in the receiving plate 162, and a buffer plate 163 is connected to the groove for sliding up and down, and a buffer spring 164 is provided between the buffer plate 163 and the inner wall of the groove.

[0035] Specifically, when the sampling tube 3 is sampling, the swing rod 161 at the feed inlet 401 is pressed by the soil and fits against the inner wall of the feed inlet 401, so as to prevent the swing rod 161 from affecting the soil from entering the sampling tube 3; after the sampling tube 3 moves upward, the soil sample falls under its own gravity, and the swing rod 161 at the feed inlet 401 is reset and rotated under the action of the torsion spring when the drill bit 4 moves out of the ground; As the cutting plate 5 cuts the soil adhered to the inner wall of the sampling tube 3, the soil sample collected in the sampling tube 3 is no longer adhered to the inner wall of the sampling tube 3 on the surrounding side and is no longer supported by the bottom dividing plate 11. The columnar soil sample first contacts the buffer plate 163 to reduce the descending height of the columnar soil sample. The deformation of the buffer spring 164 buffers the downward force of the columnar soil sample. Finally, the receiving plate 162 supports the columnar soil sample, further ensuring the original degree and internal structure of the columnar soil sample, and ensuring the accuracy of subsequent test results of the soil sample.

[0036] The present invention also discloses a method for using a foundation detection sampling device for a water conservancy project, comprising the following steps: S1: During sampling, the base 1 is placed on the ground, and the driving motor 6 is controlled to operate. The output shaft 601 of the driving motor 6 drives the main gear 6011 and the sub gear 6012 to rotate; The main gear 6011 is meshed with the gear ring 602 for transmission, and the gear ring 602 drives the sampling tube 3 to rotate through the telescopic plate 603 and the first elastic telescopic rod 604; The secondary gear 6012 meshes with the driven gear 702 on the screw 7, and the driven gear 702 drives the screw 7 to rotate, and the sleeve 701 moves downward along the axis of the screw 7. When the sleeve 701 moves downward, the telescopic plate 603 is stretched through the rotating ring 605, so that when the sleeve 701 moves downward, the rotating sampling tube 3 is driven to move. The sampling tube 3 is drilled into the ground through the drill bit 4 at the bottom, and the swing rod 161 at the feed inlet 401 is pressed by the soil and fits the inner wall of the feed inlet 401, and the soil enters the sampling tube 3 through the feed inlet 401; S2: As the sampling tube 3 continues to penetrate into the soil, the amount of soil collected in the sampling tube 3 increases, and then the force plate 113 abuts against the top surface of the base 1, and the force plate 113 is lifted relative to the sampling tube 3 that continues to move downward, and the third elastic telescopic rod 121 is compressed. The force plate 113 pulls the dividing plate 11 through the pull rope 112, so that the dividing plate 11 moves horizontally in the receiving groove 10, and the dividing plate 11 separates the soil entering the sampling tube 3 from other underground soil, and blocks the feed port 401, so that the soil sample in the sampling tube 3 is no longer adhered to other soil; When the partition plate 11 moves horizontally, it pushes the first block 901 inserted into the first slot 402, so that the first block 901 moves upward to press the first elastic element 902, and the first inclined surface of the first block 901 is placed in the first slot 402, and the positions of the sampling tube 3 and the drill bit 4 are no longer limited; When the partition plate 11 moves laterally, the second clamping block 141 moves synchronously. When the partition plate 11 blocks the feed opening 401, the second clamping block 141 is aligned with the second clamping groove 403. The second clamping block 141 enters the second clamping groove 403 under the elastic force of the second elastic element 142, and the positions of the partition plate 11 and the drill bit 4 are limited. S3: Then the driving motor 6 drives the main gear 6011 and the sub gear 6012 to rotate in the opposite direction through the output shaft 601, and the sleeve 701 moves upward along the axial direction of the screw rod 7. The sleeve 701 drives the sampling tube 3 to move upward through the rotating ring 605, the telescopic plate 603 and the first elastic telescopic rod 604, and the sampling tube 3 moves upward with the soil sample collected inside; The sampling tube 3 rotates during the upward movement, and the inner wall of the sampling tube 3 is in contact with the lower cutting plate 502, so that the lower cutting plate 502 cuts the sampling tube 3 and the soil sample adhered thereto, so that the soil sample on the inner wall of the sampling tube 3 is no longer adhered to the inner wall of the sampling tube 3; As the sampling tube 3 continues to move upward, the curved surface at the top of the sampling tube 3 abuts against the upper rod 501, and the two arc-shaped shells 301 of the sampling tube 3 are separated by force, thereby increasing the distance between the sampling tube 3 and the internal soil sample. When the arc-shaped housing 301 moves, the push block 151 at the bottom moves to the second card slot 403. The push block 151 is pushed by the elastic force of the third elastic element 152 to press down the second card block 141 in the second card slot 403. The second card block 141 shrinks into the second groove 14, releasing the restriction between the partition plate 11 and the drill bit 4. The partition plate 11 moves back under the pull of the return spring 111. The partition plate 11 no longer blocks the feed port 401 of the drill bit 4, preparing for subsequent soil sampling. S4: The soil sample collected in the sampling tube 3 is no longer adhered to the inner wall of the sampling tube 3 on the periphery and is no longer supported by the bottom dividing plate 11. The soil sample falls under the action of its own gravity. The swing rod 161 at the feed port 401 is reset and rotated under the action of the torsion spring when the drill bit 4 moves out of the ground. The columnar soil sample first contacts the buffer plate 163 to reduce the descending height of the columnar soil sample. The buffer spring 164 deforms to buffer the downward force of the columnar soil sample. Finally, the receiving plate 162 supports the columnar soil sample. The staff then continues to manually separate the arc-shaped shells 301 on both sides. The staff removes the columnar soil sample from the receiving plate 162 for testing.

[0037] 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 ground detection sampling device for a water conservancy project, comprising a base (1), characterized in that: Also includes: A top plate (2), the top plate (2) being arranged on the upper side of the base (1), and a connecting rod (101) being arranged between the top plate (2) and the base (1); A sampling barrel (3), the sampling barrel (3) being movably arranged at the base (1), a drill bit (4) being arranged at the bottom of the sampling barrel (3), a material inlet (401) being arranged on the drill bit (4) and being connected to the sampling barrel (3), and a separation component for dividing soil being arranged inside the drill bit (4); A lifting assembly, the lifting assembly being arranged between the base (1) and the top plate (2) and being used to drive the sampling tube (3) to move vertically; A driving mechanism, the driving mechanism comprising a driving assembly for driving the sampling barrel (3) to rotate and a transmission assembly connected to the driving assembly and for driving the lifting assembly to work; Wherein, a splitting plate (5) is fixedly provided on the top plate (2) and abuts against the inner wall of the sampling tube (3).

2. A foundation detection sampling device for water conservancy projects according to claim 1, characterized in that: The driving assembly comprises a driving motor (6) fixedly mounted on the top plate (2); an output shaft (601) of the driving motor (6) passes through the top plate (2) and is connected to a main gear (6011); a gear ring (602) is rotatably connected to the bottom of the top plate (2) and meshes with the main gear (6011); a telescopic plate (603) is fixedly mounted at the bottom of the gear ring (602); a first elastic telescopic rod (604) is arranged on the telescopic plate (603); an end of the first elastic telescopic rod (604) away from the telescopic plate (603) is connected to the sampling tube (3); and a rotating ring (605) is fixedly mounted on the outer side of the telescopic plate (603).

3. A foundation detection sampling device for water conservancy projects according to claim 2, characterized in that: The lifting assembly comprises a screw rod (7) rotatably arranged between the base (1) and the top plate (2), a sleeve (701) being threadedly connected to the screw rod (7), and the sleeve (701) being slidably connected to a rotating ring (605).

4. A foundation detection sampling device for water conservancy projects according to claim 3, characterized in that: The transmission assembly comprises a pinion gear (6012) fixedly connected to the output shaft (601), and the screw rod (7) is provided with a driven gear (702) meshing with the pinion gear (6012). Both the pinion gear (6012) and the driven gear (702) are rotatably connected in a cavity provided on the top plate (2).

5. A foundation detection sampling device for water conservancy projects according to claim 4, characterized in that: The separation assembly comprises a receiving groove (10) which is provided in the drill bit (4) and is connected to the feed port (401); a partition plate (11) is slidably connected in the receiving groove (10); a return spring (111) is provided between the partition plate (11) and the inner wall of the receiving groove (10); a pull rope (112) is connected to one end of the partition plate (11); an end of the pull rope (112) away from the partition plate (11) passes through the drill bit (4) and is connected to a force-bearing plate (113); the force-bearing plate (113) is movably opposed to the top wall of the base (1); a slide groove (12) for sliding the force-bearing plate (113) is provided on the sampling tube (3); a third elastic telescopic rod (121) is provided between the inner wall of the slide groove (12) and the force-bearing plate (113); and a fixed pulley (13) slidably connected to the pull rope (112) is provided on the sampling tube (3).

6. A ground detection sampling device for water conservancy projects according to claim 5, characterized in that: The sampling tube (3) comprises two arc-shaped shells (301), the arc-shaped shells (301) are connected to a first elastic telescopic rod (604), a curved surface is provided on the top of the arc-shaped shell (301), the cutting plate (5) comprises an upper rod body (501) movably abutting against the curved surface and a lower cutting plate (502) movably abutting against the inner wall of the arc-shaped shell (301), a support plate (8) is fixedly provided on the drill bit (4), and a second elastic telescopic rod (801) is provided between the support plate (8) and the arc-shaped shell (301).

7. A ground detection sampling device for water conservancy projects according to claim 6, characterized in that: A first groove (9) is provided at the bottom of the arc-shaped housing (301), a first clamping block (901) movably abutting against the dividing plate (11) is slidably connected in the first groove (9), a first elastic element (902) is provided between the first clamping block (901) and the inner wall of the first groove (9), a first inclined surface is provided at one end of the first clamping block (901) away from the first elastic element (902), and a first clamping groove (402) matching with the first clamping block (901) is provided on the drill bit (4).

8. A ground detection sampling device for water conservancy projects according to claim 7, characterized in that: The partition plate (11) is provided with a second groove (14), a second clamping block (141) is slidably connected in the second groove (14), a second elastic element (142) is arranged between the second clamping block (141) and the inner wall of the second groove (14), a second inclined surface is arranged at one end of the second clamping block (141) away from the second elastic element (142), a second clamping groove (403) matching with the second clamping block (141) is arranged on the drill bit (4), a third groove (15) is arranged at the bottom of the arc-shaped housing (301), a push block (151) movably abutting against the second clamping block (141) is slidably connected in the third groove (15), and a third elastic element (152) is arranged between the push block (151) and the inner wall of the third groove (15).

9. A ground detection sampling device for water conservancy projects according to claim 8, characterized in that: The inner wall of the feed port (401) is provided with a plurality of movable grooves (16) in a circular shape, and a swing rod (161) is rotatably connected to each movable groove (16) via a pin shaft, and a torsion spring for driving the swing rod (161) to return and rotate is sleeved on the pin shaft, and a receiving plate (162) is provided at the end of the swing rod (161), and a groove is provided in the receiving plate (162), and a buffer plate (163) is slidably connected to the groove up and down, and a buffer spring (164) is provided between the buffer plate (163) and the inner wall of the groove.

10. A method for using the foundation detection sampling device for water conservancy projects as claimed in claim 9, characterized in that: The following steps are involved: S1: During sampling, the base (1) is placed on the ground, and the driving motor (6) is controlled to operate, so that the output shaft (601) of the driving motor (6) drives the main gear (6011) and the auxiliary gear (6012) to rotate; The main gear (6011) meshes with the gear ring (602) for transmission, and the gear ring (602) drives the sampling tube (3) to rotate via the telescopic plate (603) and the first elastic telescopic rod (604); The secondary gear (6012) meshes with the driven gear (702) on the screw rod (7), and the driven gear (702) drives the screw rod (7) to rotate, and the sleeve (701) moves downward along the axis of the screw rod (7). When the sleeve (701) moves downward, the telescopic plate (603) is stretched through the rotating ring (605), so that when the sleeve (701) moves downward, the rotating sampling tube (3) is driven to move. The sampling tube (3) is drilled into the ground through the drill bit (4) at the bottom, and the swing rod (161) at the feed port (401) is pressed by the soil and fits the inner wall of the feed port (401), and the soil enters the sampling tube (3) through the feed port (401); S2: As the sampling tube (3) continues to penetrate the soil, the amount of soil collected in the sampling tube (3) increases, and then the force plate (113) abuts against the top surface of the base (1), and the force plate (113) is lifted relative to the sampling tube (3) that continues to move downward, the third elastic telescopic rod (121) is compressed, and the force plate (113) pulls the dividing plate (11) through the pull rope (112), so that the dividing plate (11) moves horizontally in the receiving groove (10), and the dividing plate (11) separates the soil entering the sampling tube (3) from other soil underground, and blocks the feed port (401), so that the soil sample in the sampling tube (3) is no longer adhered to other soil; When the partition plate (11) moves horizontally, it pushes the first clamping block (901) inserted into the first clamping slot (402), so that the first clamping block (901) moves upward to press the first elastic element (902), and the first inclined surface of the first clamping block (901) is placed in the first clamping slot (402), and the positions of the sampling tube (3) and the drill bit (4) are no longer limited; When the partition plate (11) moves laterally, it drives the second clamping block (141) to move synchronously. When the partition plate (11) blocks the feed opening (401), the second clamping block (141) is aligned with the second clamping groove (403). The second clamping block (141) enters the second clamping groove (403) under the elastic force of the second elastic element (142), and the positions of the partition plate (11) and the drill bit (4) are limited. S3: Then, the driving motor (6) drives the main gear (6011) and the sub-gear (6012) to rotate in opposite directions via the output shaft (601), and the sleeve (701) moves upward along the axial direction of the screw rod (7). The sleeve (701) drives the sampling tube (3) to move upward via the rotating ring (605), the telescopic plate (603) and the first elastic telescopic rod (604), and the sampling tube (3) moves upward with the soil sample collected therein; The sampling tube (3) rotates during the upward movement, and the inner wall of the sampling tube (3) fits the lower cutting plate (502), so that the lower cutting plate (502) cuts the sampling tube (3) and the soil sample adhered thereto, so that the soil sample on the inner wall of the sampling tube (3) is no longer adhered to the inner wall of the sampling tube (3); As the sampling tube (3) continues to move upward, the curved surface at the top of the sampling tube (3) abuts against the upper rod body (501), and the two arc-shaped outer shells (301) of the sampling tube (3) are forced to separate, thereby increasing the distance between the sampling tube (3) and the soil sample inside; When the arc-shaped housing (301) moves, the push block (151) at the bottom moves to the second clamping groove (403), and the push block (151) is pushed downward by the elastic force of the third elastic element (152) to press the second clamping block (141) in the second clamping groove (403), so that the second clamping block (141) contracts into the second groove (14), thereby releasing the restriction between the partition plate (11) and the drill bit (4), and the partition plate (11) moves back under the pull of the return spring (111), so that the partition plate (11) no longer blocks the feed port (401) of the drill bit (4), thereby preparing for subsequent soil sampling; S4: The soil sample collected in the sampling tube (3) falls under the action of its own gravity because the surrounding side is no longer adhered to the inner wall of the sampling tube (3) and the bottom partition plate (11) no longer supports it. The swing rod (161) at the feed port (401) is reset and rotated under the action of the torsion spring when the drill bit (4) moves out of the ground. The columnar soil sample first contacts the buffer plate (163) to reduce the descending height of the columnar soil sample. The buffer spring (164) deforms to buffer the downward force of the columnar soil sample. Finally, the receiving plate (162) supports the columnar soil sample. The staff then continues to manually separate the arc-shaped shells (301) on both sides. The staff removes the columnar soil sample from the receiving plate (162) for testing.

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