Water source detection sampling instrument for engineering geological investigation

Abstract

The invention relates to the technical field of engineering geological investigation, and discloses a water source detection sampling instrument for engineering geological investigation, which comprises an advancing vehicle, the outside of the advancing vehicle is rotatably connected with a ground breaking assembly, the ground breaking assembly comprises a mounting frame, the mounting frame is rotatably connected with the advancing vehicle through a hydraulic rod I, and the hydraulic rod II is rotatably connected with the advancing vehicle through a hydraulic rod II; a second hydraulic rod is fixedly connected to the top of the placement frame, a pressure plate is fixedly connected to the output end of the second hydraulic rod, a connecting shaft is rotatably connected to the interior of the pressure plate, a first threaded rod is fixedly connected to one end of the connecting shaft, the interior of the first threaded rod is hollow, and a plurality of air injection holes are formed in the first threaded rod. An overflow hole formed in the outer surface of the drill bit and a stabilizing hole are matched with a limiting bolt for deep locking, the drilling depth is accurately controlled by combining a gear transmission system driven by a second motor, and the technical defect that a specified stratum sample is difficult to accurately obtain through traditional equipment is overcome.

Description

Technical Field

[0001] The invention relates to the technical field of engineering geological survey, in particular to a water source detection sampling instrument for engineering geological survey. Background Art

[0002] In the field of engineering geological surveys, the precise collection of water source samples directly affects the reliability of groundwater quality assessment and stratigraphic structure analysis. Traditional sampling equipment faces many technical limitations in practical applications: First, conventional drilling tools lack an effective borehole wall stabilization mechanism when operating in soft formations, which can easily lead to sampling position deviation and sample contamination; second, existing drilling mechanisms have difficulty achieving precise depth control, and samples from different geological layers are prone to cross-mixing, especially at the junction of layered formations. In addition, traditional mud-water separation devices mostly use passive separation processes, which have problems such as low processing efficiency and incomplete separation, making it difficult to meet the needs of rapid on-site testing.

[0003] Current improvement plans mostly focus on optimizing a single function, such as increasing the sampling tube length to improve the collection volume, or using a multi-layer filtration structure to enhance the separation effect. However, these improvements often lead to complex equipment structures and do not solve systemic problems such as poor stability and insufficient stratification accuracy when sampling soft soil layers. Especially in typical soft geological conditions such as floodplains and alluvial plains, existing equipment generally has defects such as low sampling integrity and large discreteness of detection data. Therefore, the development of an integrated sampling device with strong stratum adaptability, high sampling accuracy, and excellent separation efficiency has become a technical problem that needs to be solved urgently in the field of engineering geological survey. Summary of the Invention

[0004] In response to the deficiencies of the existing technology, the present invention provides a water source detection sampler for engineering geological surveys, which solves the problems of insufficient stability of traditional sampling equipment under soft geological conditions, low stratified sampling accuracy, and poor mud-water separation efficiency.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A water source detection sampler for engineering geological survey, comprising a traveling vehicle, the outside of the traveling vehicle is rotatably connected to a ground-breaking assembly, the ground-breaking assembly comprises a mounting frame, the mounting frame is rotatably connected to the traveling vehicle through a hydraulic rod 1, the top of the mounting frame is fixedly connected to a hydraulic rod 2, the output end of the hydraulic rod 2 is fixedly connected to a pressure plate, the inside of the pressure plate is rotatably connected to a connecting shaft, one end of the connecting shaft is fixedly connected to a threaded rod 1, the interior of the threaded rod 1 is hollow, a plurality of air injection holes are provided inside the threaded rod 1, the input end of the air injection hole passes through the outer surface of the threaded rod 1, one end of the threaded rod 1 is threadedly connected to a drill bit, the outer surface of the drill bit is symmetrically provided with a plurality of overflow holes, the inner wall of the drill bit is fixedly connected to a plurality of springs 1, the drill bit is fixedly connected to a closing plate through the spring 1, the closing plate is rotatably connected to the inner wall of the drill bit, a water source sampling assembly is arranged inside the mounting frame, a mud and water separation and collection assembly is arranged inside the traveling vehicle, and a stabilizing assembly is arranged outside the traveling vehicle.

[0006] Preferably, the mud and water separation and collection assembly includes a separation box, which is fixedly connected to the interior of the traveling vehicle, and two motors 1 are fixedly connected to both sides of the separation box, and the output ends of the two motors 1 are fixedly connected to threaded rods 2, and the outer surfaces of the two threaded rods 2 are threadedly connected to extrusion plates, and the inner bottom end of the separation box is fixedly connected to the water diversion block, and the contact surface between the extrusion plate and the water diversion block is inclined, and the inner bottom end of the separation box is connected to the water guide hose, and a flexible filter net is abutted against the inside of the separation box.

[0007] Preferably, the water source sampling assembly includes a water pump, which is fixedly connected to the inside of the mounting bracket. The input end of the water pump is connected to a water suction pipe, and the input end of the water suction pipe is connected to a filter. The outer surface of the input end of the water suction pipe is fixedly connected to a protective net, and the protective net is wrapped around the outside of the filter.

[0008] Preferably, the stabilizing component includes a plurality of connecting frames, a plurality of the connecting frame flanges are connected to the outer surface of the traveling vehicle, a hydraulic rod three is fixedly connected to the interior of the connecting frame, and a spike is fixedly connected to the output end of the hydraulic rod three.

[0009] Preferably, a fan and a pressure pump are fixedly connected to the upper surface of the pressure plate, the input end of the fan is connected to the outside world, the output end of the fan is connected to the input end of the pressure pump, the output end of the pressure pump is connected to an air pipe, and the output end of the air pipe is threadedly connected to the inside of the air injection hole.

[0010] Preferably, a plurality of stabilizing holes are provided on the outer surface of the drill bit above the plurality of overflow holes, the stabilizing holes pass through the outer surface of the drill bit, and limiting bolts are slidably connected inside the stabilizing holes.

[0011] Preferably, the overflow holes, the stabilization holes and the air injection holes are of the same number.

[0012] Preferably, inside the pressure plate, one end of the connecting shaft is fixedly connected to gear one, the outside of the pressure plate is fixedly connected to motor two, the output end of motor two is fixedly connected to gear two, and gear two is rotatably connected to the inside of the pressure plate and meshes with gear one.

[0013] Preferably, the inner top end of the threaded rod 1 is fixedly connected to a spring 2, and the threaded rod 1 is fixedly connected to a lower material piece through the spring 2, and the lower material piece is slidably connected to the inside of the threaded rod 1.

[0014] Preferably, the connecting shaft is rotatably connected to the pressure plate via a bearing.

[0015] The present invention provides a water source detection sampling instrument for engineering geological surveys. It has the following beneficial effects:

[0016] 1. The present invention uses overflow holes and stabilization holes on the outer surface of the drill bit in conjunction with limit bolts to lock the depth, and combines the gear transmission system driven by motor 2 to accurately control the drilling depth, overcoming the technical defects of traditional equipment that are difficult to accurately obtain samples of specified formations, realizing the precise collection of samples from different geological layers, and providing reliable data support for engineering geological analysis.

[0017] 2. The present invention adopts a pneumatic system composed of a fan and a pressure pump arranged on the pressure plate, and then uses an air pipe to transport high-pressure gas into the threaded rod, and cooperates with the spring-controlled discharge piece in the threaded rod to realize automatic sampling, thereby solving the sample contamination problem caused by poor discharge of mud-water mixture and improving the purity of stratified sampling and detection reliability.

[0018] 3. The present invention uses three hydraulic rod-driven spikes in the stabilizing assembly carried by the traveling vehicle to vertically penetrate the ground. Combined with the multi-directional support structure formed by multiple connecting frames, it effectively improves the operating stability of the equipment under soft geological conditions, solves the problem that traditional sampling equipment is prone to tilting and displacement in complex terrain, and ensures the accuracy of sampling data and the safety of equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention;

[0020] Figure 2 is a side view of the present invention;

[0021] Figure 3 is a schematic diagram of the earth-breaking component of the present invention;

[0022] Figure 4 is a cross-sectional view of the threaded rod 1 in the present invention;

[0023] Figure 5 is a cross-sectional view of the drill bit of the present invention;

[0024] Figure 6 Schematic diagram of gear 1 in the present invention;

[0025] Figure 7 Schematic diagram of the mud-water separation and collection assembly of the present invention;

[0026] Figure 8 It is a cross-sectional view of the mud-water separation and collection assembly of the present invention;

[0027] Figure 9 Schematic diagram of the water source sampling assembly of the present invention.

[0028] Among them, 1. Traveling vehicle; 2. Ground breaking assembly; 201. Placement frame; 202. Hydraulic rod 1; 203. Hydraulic rod 2; 204. Pressure plate; 205. Connecting shaft; 206. Threaded rod 1; 207. Air injection hole; 208. Drill bit; 209. Overflow hole; 210. Spring 1; 211. Closing piece; 3. Water source sampling assembly; 4. Mud and water separation and collection assembly; 5. Stabilizing assembly; 401. Separation box; 402. Motor 1; 403. Threaded rod 2; 404. Extrusion plate; 405. Water diversion block; 406, water hose; 407, flexible filter; 301, water pump; 302, suction pipe; 303, filter; 304, protective net; 501, connecting frame; 502, hydraulic rod three; 503, spike; 2041, fan; 2042, pressure pump; 2043, air pipe; 212, stabilizing hole; 213, limit bolt; 2051, gear one; 2044, motor two; 2045, gear two; 2061, spring two; 2062, blanking sheet; 2052, bearing. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Please see the attached Figure 1 -Attached Figure 9The embodiment of the present invention provides a water source detection sampling instrument for engineering geological survey, including a traveling vehicle 1, the outside of the traveling vehicle 1 is rotatably connected to a groundbreaking component 2, the groundbreaking component 2 includes a mounting frame 201, the mounting frame 201 is rotatably connected to the traveling vehicle 1 through a hydraulic rod 1 202, the top of the mounting frame 201 is fixedly connected to a hydraulic rod 203, the output end of the hydraulic rod 203 is fixedly connected to a pressure plate 204, the inside of the pressure plate 204 is rotatably connected to a connecting shaft 205, one end of the connecting shaft 205 is fixedly connected to a threaded rod 1 206, the inside of the threaded rod 1 206 is hollow, and the inside of the threaded rod 206 is open. A plurality of air injection holes 207 are provided, and the input end of the air injection hole 207 passes through the outer surface of the threaded rod 206. One end of the threaded rod 206 is threadedly connected to a drill bit 208. A plurality of overflow holes 209 are symmetrically provided on the outer surface of the drill bit 208. The inner wall of the drill bit 208 is fixedly connected to a plurality of springs 210. The drill bit 208 is fixedly connected to a closing piece 211 through a spring 210. The closing piece 211 is rotatably connected to the inner wall of the drill bit 208. A water source sampling component 3 is provided inside the mounting frame 201, a mud and water separation and collection component 4 is provided inside the traveling vehicle 1, and a stabilizing component 5 is provided outside the traveling vehicle 1.

[0031] Specifically, after the traveling vehicle 1 carrying the equipment moves to the sampling area, the stabilizing component 5 realizes the rigid fixation of the vehicle body and the ground through the hydraulic drive structure; the placement frame 201 realizes the precise positioning of the overall working angle of the earth-breaking component 2 through the telescopic adjustment of the hydraulic rod 1 202; the hydraulic rod 203 provides vertical downward axial pressure for the pressure plate 204, and cooperates with the connecting shaft 205 to transmit the rotational power to the threaded rod 1 206; the threaded rod 1 206 forms a gas transmission channel through the hollow structure, and the gas injection hole 207 opened on its surface realizes the directional injection of high-pressure gas into the drill bit 208 The drill bit 208 is connected with the threaded rod 206 through a threaded connection to realize quick disassembly and assembly, and the overflow hole 209 opened on its surface discharges non-target layer soil during the drilling process; the spring 210 provides elastic pre-tightening force for the closing piece 211, and the bottom of the closed drill bit 208 is formed into a sealed cavity under normal conditions, which can be opened under the action of air pressure to realize sample discharge; the water source sampling component 3 realizes the in-situ collection of liquid samples through an independent pipeline system, and the mud and water separation collection component 4 adopts a combination of mechanical extrusion and filtration to realize solid-liquid separation, and finally completes the stratified collection and processing process of geological samples.

[0032] The mud and water separation collection assembly 4 includes a separation box 401, which is fixedly connected to the inside of the traveling vehicle 1. Two motors 402 are fixedly connected to both sides of the separation box 401. The output ends of the two motors 402 are fixedly connected to threaded rods 403. The outer surfaces of the two threaded rods 403 are threadedly connected to extrusion plates 404. The inner bottom end of the separation box 401 is fixedly connected to a water diversion block 405. The contact surface between the extrusion plate 404 and the water diversion block 405 is inclined. The inner bottom end of the separation box 401 is connected to a water guide hose 406. A flexible filter screen 407 is abutted against the inside of the separation box 401.

[0033] Specifically, after the separation box 401 in the mud-water separation and collection assembly 4 receives the mud-water mixture as a solid-liquid separation container, the motor 1 402 realizes the vertical lifting movement of the extrusion plate 404 by synchronously driving the threaded rods 2 403 on both sides, and the threaded rods 2 403 convert the rotational motion into the linear displacement of the extrusion plate 404; during the downward pressing process of the extrusion plate 404, a progressive compression space is formed with the inclined contact surface of the water guide block 405, forcing the mud-water mixture to pass through the flexible filter mesh 407 for solid-liquid separation; the flexible filter mesh 407 deforms under pressure to increase the filtration area while maintaining structural integrity, effectively intercepting solid particles; the inclined structure of the water guide block 405 guides the separated liquid water flow to the outlet direction of the water guide hose 406, and the water guide hose 406 directionally transports the filtered water source to the external collection device, completing the mechanical extrusion separation and clean water collection process of the mud-water mixture.

[0034] The water source sampling component 3 includes a water pump 301, which is fixedly connected to the inside of the mounting frame 201. The input end of the water pump 301 is connected to a water suction pipe 302, and the input end of the water suction pipe 302 is connected to a filter 303. The outer surface of the input end of the water suction pipe 302 is fixedly connected to a protective net 304, and the protective net 304 is wrapped around the outside of the filter 303.

[0035] Specifically, when the water pump 301 in the water source sampling component 3 generates negative pressure to extract liquid samples through the water suction pipe 302, the protective net 304 acts as a primary filtration barrier to block large suspended matter and impurities in the water body; the water suction pipe 302, under the action of negative pressure, guides the water flow pre-filtered by the protective net 304 into the filter 303 for secondary fine filtration; the filter 303 intercepts fine sand particles and colloidal substances through its internal filtration structure to ensure that the water sample entering the water pump 301 meets the detection requirements; the water pump 301, as a power source, maintains a continuous negative pressure state and transports the purified water sample to the detection or storage device, forming a complete sampling process from water extraction, multi-stage filtration to sample output

[0036] The stabilizing component 5 includes a plurality of connecting frames 501 , which are flange-connected to the outer surface of the traveling vehicle 1 , a hydraulic rod 3 502 is fixedly connected inside the connecting frame 501 , and a spike 503 is fixedly connected to the output end of the hydraulic rod 3 502 .

[0037] Specifically, the connecting frame 501 in the stabilizing component 5 is quickly installed and positioned with the traveling vehicle 1 through a flange connection, and the hydraulic rod 3 502 drives the spike 503 to penetrate vertically into the ground through telescopic movement; the spike 503 breaks through the surface layer under the action of hydraulic thrust to form an anchor point, and multiple connecting frames 501 work together to form a multi-directional support structure, which effectively offsets the vibration and lateral load generated by the traveling vehicle 1 during sampling operations, ensuring the stable working state of the equipment under soft geological conditions.

[0038] The upper surface of the pressure plate 204 is fixedly connected to a fan 2041 and a pressure pump 2042. The input end of the fan 2041 is connected to the outside world, and the output end of the fan 2041 is connected to the input end of the pressure pump 2042. The output end of the pressure pump 2042 is connected to an air pipe 2043. The output end of the air pipe 2043 is threadedly connected to the inside of the air injection hole 207.

[0039] Specifically, the fan 2041 provided on the pressure plate 204 forms an initial air source by inhaling external air, and the pressure pump 2042 pressurizes the airflow delivered by the fan 2041 to form high-pressure gas; the air pipe 2043 serves as a transmission channel to deliver the pressurized gas to the inside of the air injection hole 207 of the threaded rod 1 206, and the high-pressure gas enters the cavity of the drill bit 208 through the air injection hole 207, and generates positive pressure, which pushes the blanking piece 2062 to overcome the resistance of the spring 2061 and move downward, and at the same time pushes open the closing piece 211 to realize the directional discharge of the mud-water mixture, completing the pneumatic sampling operation process after sampling.

[0040] A plurality of stabilizing holes 212 are provided on the outer surface of the drill bit 208 above the plurality of overflow holes 209 . The stabilizing holes 212 pass through the outer surface of the drill bit 208 , and limiting bolts 213 are slidably connected inside the stabilizing holes 212 .

[0041] The number of overflow holes 209 , stabilization holes 212 and gas injection holes 207 is adapted to each other.

[0042] Specifically, when the overflow hole 209 provided on the outer surface of the drill bit 208 discharges non-target layer soil during the drilling process, the stabilizing hole 212 opened on the top locks the relative position of the drill bit 208 and the threaded rod 206 by inserting the limiting bolt 213 into different depths; when the limiting bolt 213 passes through the stabilizing hole 212 and the gas injection hole 207, a double limiting structure is formed, which not only ensures the precise control of the sampling depth of the drill bit 208, but also maintains the sealing of the gas path during the gas injection operation; the equal number of corresponding design of the overflow hole 209, the stabilizing hole 212 and the gas injection hole 207 realizes the coordinated cooperation of each functional hole position, so that the three functional modules of depth adjustment, soil discharge and air pressure sampling form a spatial correspondence.

[0043] Inside the pressure plate 204, one end of the connecting shaft 205 is fixedly connected to gear 1 2051, the outside of the pressure plate 204 is fixedly connected to motor 2 2044, the output end of motor 2 2044 is fixedly connected to gear 2 2045, and gear 2 2045 is rotatably connected to the inside of the pressure plate 204 and meshes with gear 1 2051.

[0044] Specifically, the gear 1 2051 provided inside the pressure plate 204 is rigidly connected to the connecting shaft 205 to form a power transmission node, and the motor 2044 transmits the rotational torque to the connecting shaft 205 through the meshing transmission of the output end gear 2045 and the gear 1 2051; the gear 2 2045, driven by the motor 2 2044, drives the gear 1 2051 to achieve precise speed control, and then drives the threaded rod 1 206 and the drill bit 208 through the connecting shaft 205 to perform rotary drilling operations, forming a power transmission system composed of motor drive, gear transmission, and axial rotation, thereby ensuring the controllability of the drilling process and the power transmission efficiency.

[0045] The inner top end of the threaded rod 1 206 is fixedly connected to the spring 2061 , and the threaded rod 1 206 is fixedly connected to the lower piece 2062 through the spring 2061 , and the lower piece 2062 is slidably connected to the inside of the threaded rod 1 206 .

[0046] Specifically, spring 2061 provided at the top end of threaded rod 1 206 provides a continuous upward elastic pre-tightening force for the blanking piece 2062, keeping the blanking piece 2062 in a closed position under normal conditions; when high-pressure gas enters the cavity of the drill bit 208 through the gas injection hole 207, the gas pressure overcomes the elastic force of spring 2061 and pushes the blanking piece 2062 downward along the inner wall of threaded rod 1 206, opening the sample discharge channel at the bottom of the drill bit 208; after the sampling is completed, spring 2061 resets and drives the blanking piece 2062 back to its original position, forming a sample discharge control structure with a self-resetting function, ensuring the reliable opening and closing of the sample discharge channel after each sampling.

[0047] The connecting shaft 205 is rotatably connected to the pressure plate 204 via a bearing 2052 .

[0048] Specifically, the connecting shaft 205 forms a low-friction rotational connection with the pressure plate 204 through the bearing 2052. The bearing 2052 reduces the rotational resistance while bearing the axial pressure, ensuring that the rotational power output by the motor 2044 is efficiently transmitted to the connecting shaft 205. This structural design enables the connecting shaft 205 to maintain stable rotation under the condition that the hydraulic rod 203 applies vertical pressure, thereby realizing the synchronous transmission of axial pressure and rotational power during drilling operations.

[0049] Working principle: In actual use, preparation work is required before sampling. First, after the traveling vehicle 1 is moved to the sampling area, the stabilizing component 5 is started, and the spike 503 is driven into the ground by the hydraulic rod 3 502 to achieve the fixed balance of the vehicle body. Then, the hydraulic rod 1 202 is used to drive the placement frame 201 to rotate to the working position, so that the bottom of the placement frame 201 contacts the ground, and the preparation work is completed. After that, on the threaded rod 1 206, the drill bit 208 is rotated to an appropriate length according to the sampling depth, so that at least one overflow is The distance between the outlet hole 209 and the bottom of the drill bit 208 is greater than the sampling depth, and then the limit bolt 213 is passed through the stabilizing hole 212 and the gas injection hole 207, and the connection between the output end of the gas pipe 2043 and the gas injection hole 207 is disconnected, thus completing the installation of the drill bit 208; then the hydraulic rod 203 is started to push the pressure plate 204 downward, and at the same time the motor 2044 drives the gear 1 2051 through the gear 2 2045 to drive the connecting shaft 205 to rotate, so that the threaded rod 1 206 and the drill bit 208 are screwed into the formation. During the drilling process, The soil above the target soil layer will flow out from the overflow hole 209 until the inside of the drill bit 208 is filled with the required mud-water mixture; after collecting the required mud-water mixture, the bottom of the drill bit 208 is pulled above the ground surface, the locking of the limit bolt 213 is released and the connection between the output end of the gas pipe 2043 and the gas injection hole 207 is restored, the fan 2041 and the pressure pump 2042 are started and high-pressure gas is injected into the gas injection hole 207 through the gas pipe 2043. Inside the threaded rod and the drill bit 208, the gas pressure overcomes the spring 2061 pushing The movable discharge piece 2062 pushes open the closing piece 211 at the bottom of the drill bit 208 to discharge the sample from the bottom of the drill bit 208, and then transfers the sample to the separation box 401. After the mud and water mixture enters the separation box 401, the motor 1 402 drives the threaded rod 2 403 to drive the extrusion plate 404 to press down, and the extrusion force and the flexible filter net 407 are used to separate the mud and water. Then, the separated water source is guided by the inclined surface of the water diversion block 405 through the water guide hose 406 to the external collection equipment; after the collection is completed, the equipment is folded to prepare for the next sampling.

[0050] On the other hand, when facing a water source sample from a single water source, this device can directly place one side of the output end of the suction pipe 302 into the water, and extract the water sample through the suction pipe 302 by the water pump 301. During this process, the filter 303 and the protective net 304 can isolate large interference objects and fine impurities such as mud and sand in the water.

[0051] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A water source detection sampling instrument for engineering geological survey, comprising a traveling vehicle (1), characterized in that: The outer portion of the traveling vehicle (1) is rotatably connected to a soil-breaking assembly (2), and the soil-breaking assembly (2) includes a mounting frame (201), and the mounting frame (201) is rotatably connected to the traveling vehicle (1) via a hydraulic rod 1 (202). The top of the mounting frame (201) is fixedly connected to a hydraulic rod 2 (203), and the output end of the hydraulic rod 2 (203) is fixedly connected to a pressure plate (204). The inner portion of the pressure plate (204) is rotatably connected to a connecting shaft (205), and one end of the connecting shaft (205) is fixedly connected to a threaded rod 1 (206). The inner portion of the threaded rod 1 (206) is hollow, and a plurality of air injection holes (207) are provided in the inner portion of the threaded rod 1 (206). The air injection holes (207) are provided in the inner portion of the threaded rod 1 (206). The input end of the screw rod (7) passes through the outer surface of the threaded rod (206), one end of the threaded rod (206) is threadedly connected to a drill bit (208), the outer surface of the drill bit (208) is symmetrically provided with a plurality of overflow holes (209), the inner wall of the drill bit (208) is fixedly connected to a plurality of springs (210), the drill bit (208) is fixedly connected to a closing piece (211) through the spring (210), the closing piece (211) is rotatably connected to the inner wall of the drill bit (208), a water source sampling component (3) is provided inside the mounting frame (201), a mud and water separation and collection component (4) is provided inside the traveling vehicle (1), and a stabilizing component (5) is provided outside the traveling vehicle (1).

2. The water source detection sampling instrument for engineering geological survey according to claim 1 is characterized in that: The mud-water separation and collection assembly (4) comprises a separation box (401), the separation box (401) being fixedly connected to the interior of the traveling vehicle (1), two motors (402) being fixedly connected to both sides of the separation box (401), the output ends of the two motors (402) being fixedly connected to threaded rods (403), the outer surfaces of the two threaded rods (403) being threadedly connected to extrusion plates (404), the inner bottom end of the separation box (401) being fixedly connected to a water diversion block (405), the contact surface between the extrusion plate (404) and the water diversion block (405) being inclined, the inner bottom end of the separation box (401) being connected to a water diversion hose (406), and a flexible filter screen (407) being in contact with the interior of the separation box (401).

3. The water source detection sampling instrument for engineering geological survey according to claim 1 is characterized in that: The water source sampling assembly (3) comprises a water pump (301), the water pump (301) is fixedly connected to the interior of the mounting frame (201), the input end of the water pump (301) is connected to a water suction pipe (302), the input end of the water suction pipe (302) is connected to a filter (303), the outer surface of the input end of the water suction pipe (302) is fixedly connected to a protective net (304), and the protective net (304) is wrapped around the outside of the filter (303).

4. The water source detection sampling instrument for engineering geological survey according to claim 1, characterized in that: The stabilizing assembly (5) includes a plurality of connecting frames (501), wherein the plurality of connecting frames (501) are flange-connected to the outer surface of the traveling vehicle (1), a hydraulic rod three (502) is fixedly connected inside the connecting frame (501), and a spike (503) is fixedly connected to the output end of the hydraulic rod three (502).

5. The water source detection sampling instrument for engineering geological survey according to claim 1, characterized in that: A fan (2041) and a pressure pump (2042) are fixedly connected to the upper surface of the pressure plate (204); the input end of the fan (2041) is connected to the outside world; the output end of the fan (2041) is connected to the input end of the pressure pump (2042); the output end of the pressure pump (2042) is connected to an air supply pipe (2043); the output end of the air supply pipe (2043) is threadedly connected to the inside of the air injection hole (207).

6. The water source detection sampling instrument for engineering geological survey according to claim 1, characterized in that: A plurality of stabilizing holes (212) are provided on the outer surface of the drill bit (208) above the plurality of overflow holes (209). The stabilizing holes (212) pass through the outer surface of the drill bit (208), and the interior of the stabilizing holes (212) is slidably connected to a limiting bolt (213).

7. The water source detection sampling instrument for engineering geological survey according to claim 6, characterized in that: The overflow holes (209), the stabilizing holes (212) and the gas injection holes (207) are of the same number.

8. The water source detection sampling instrument for engineering geological survey according to claim 1, characterized in that: Inside the pressure plate (204), one end of the connecting shaft (205) is fixedly connected to gear one (2051), the outside of the pressure plate (204) is fixedly connected to motor two (2044), the output end of motor two (2044) is fixedly connected to gear two (2045), and gear two (2045) is rotatably connected to the inside of the pressure plate (204) and meshed with gear one (2051).

9. The water source detection sampling instrument for engineering geological survey according to claim 1, characterized in that: The inner top end of the threaded rod 1 (206) is fixedly connected to the spring 2 (2061), and the threaded rod 1 (206) is fixedly connected to the lower piece (2062) through the spring 2 (2061), and the lower piece (2062) is slidably connected to the inside of the threaded rod 1 (206).

10. The water source detection sampling instrument for engineering geological survey according to claim 1, characterized in that: The connecting shaft (205) is rotatably connected to the pressure plate (204) via a bearing (2052).

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