A sampling drill device for water well drilling

Abstract

The water well drilling sampling drill device provided by the application relates to the technical field of stratum drilling equipment and comprises a connecting frame, a crushing assembly for crushing soil is arranged on the connecting frame, the crushing assembly is connected with a cam structure, the crushing assembly is connected with a spiral feeding assembly, a barrel is arranged on the outer side of the spiral feeding assembly, a sampling collecting assembly is arranged on the barrel, the sampling collecting assembly is connected with the crushing assembly in linkage, a positioning assembly is arranged on the sampling collecting assembly, and the positioning assembly is connected with the spiral feeding assembly in separation. The water well drilling sampling drill device provided by the application can make the sampling tube accurately sample up and down inside the well during drilling, and is suitable for soil, underground gravel layer or cave layer drilling sampling.

Description

Technical Field

[0001] This invention belongs to the technical field of formation drilling equipment, specifically relating to a sampling drill device for water well drilling. Background Technology

[0002] A well is an engineering structure primarily used for extracting groundwater. It can be vertical, inclined, or a combination of different directions, but vertical is the most common. Wells are used for domestic water intake, irrigation, and can also be used for hiding, concealment, or storage. Before constructing and drilling a well, soil analysis is necessary to determine the drilling location and the appropriate drill bit. A sampling drill rig is required, which is a device that drills to a certain depth in topsoil and rock strata to collect soil samples and rock cores. Currently, most sampling drill rigs fall into two categories: distributed sampling, where sampling is performed after drilling to the required depth, and sampling is done simultaneously with drilling by carrying a sampling tube on the drill bit. The former method is less efficient, while the latter method is prone to the sampling tube being filled with soil before reaching the sampling location, resulting in inaccurate sampling.

[0003] Furthermore, currently, commonly used drilling rigs include mechanical drilling and hydraulically driven drilling. Mechanical drilling rigs use gear transmission for the power head, but mechanical wear is excessive during construction. Fully hydraulic drilling rigs use a hydraulic motor as the power head, but their functionality has many shortcomings; the transition between high torque and high speed easily causes mechanical failure. It should be noted that mechanical wear is not significant in relatively soft soil, but drilling through underground gravel layers or karst caves can easily cause mechanical damage. Summary of the Invention

[0004] The purpose of this invention is to provide a sampling drill device for water well drilling, which solves the technical problem of how to enable the sampling tube to accurately take samples at the upper and lower positions inside the well during the drilling process. It is also applicable to drilling and sampling in soil, underground gravel layers or karst cave layers.

[0005] A sampling drill device for well drilling includes a connecting frame, on which a soil crushing component is mounted. The crushing component is connected to a cam structure and a screw feeding component. A material cylinder is mounted on the outside of the screw feeding component, and a sampling collection component is mounted on the material cylinder. The sampling collection component is linked to the crushing component, and a positioning component is mounted on the sampling collection component. The positioning component is separately connected to the screw feeding component.

[0006] The spiral feeding assembly includes a vertically arranged drill shaft, an upper spiral blade coaxially arranged at the upper end of the drill shaft, a lower spiral blade coaxially arranged at the lower end of the drill shaft, two positioning rods respectively fixed on both sides of the top end of the drill shaft, and a fixing column connected to the top end of the two positioning rods. A bearing is provided on the outer side of the fixing column. The outer diameter of the lower spiral blade is larger than the outer diameter of the upper spiral blade. A material cylinder is provided on the outer side of the upper spiral blade. The outer diameter of the material cylinder is the same as that of the lower spiral blade. The material cylinder is connected to the connecting frame.

[0007] The breaking assembly includes a vertically arranged upper sliding column, a spring whose top end is fixedly connected to the bottom end of the upper sliding column, a lower sliding column whose top end is fixedly connected to the bottom end of the spring, and a soil-breaking cone fixed to the bottom end of the lower sliding column. A baffle block is provided on the outer side of the upper end of the upper sliding column, and a limit block is provided at the top end of the upper sliding column. A limit groove is formed on the upper end surface of the limit block. The upper sliding column, the lower sliding column, and the soil-breaking cone are coaxially connected.

[0008] The lower sliding column is coaxially slidably disposed at the center of the drill shaft, and the spring and the upper sliding column are disposed between the two positioning rods.

[0009] The cam structure includes a horizontally arranged camshaft, a cam eccentrically arranged on the camshaft, and an upper motor drivenly connected to one end of the camshaft. The camshaft is rotatably connected to a connecting frame.

[0010] The fixed column is connected to the gear drive structure; the gear drive structure includes a driven gear coaxially sleeved on the outside of the fixed column and a driving gear meshing with the outside of the driven gear. A driving shaft passes through the center of the driving gear and is connected to the lower motor.

[0011] The sampling and collection assembly includes a vertically arranged collection rod, with outwardly protruding steps on both sides of the lower end of the collection rod; the outer side of the material cylinder has an opening that runs through both the top and bottom, the collection rod is vertically arranged in the opening, and the top end of the collection rod is fixedly connected to the partition block by a connecting rod.

[0012] A receiving groove and a sampling groove are respectively provided on both sides of the opening and the outer end of the material cylinder. Two steps are respectively provided in the receiving groove and the sampling groove. The two sides of the collecting rod are respectively separately attached to the inner side of the receiving groove and the sampling groove. A sealing plate is connected to the outer side of the sampling groove by screws.

[0013] The positioning component includes a horizontally positioned push cylinder and an arc-shaped plate fixedly connected to the free end of the push cylinder on the outside. The two ends of the arc-shaped plate are respectively embedded separately in positioning grooves provided on the positioning rod.

[0014] Technical features not described in detail in this solution can be understood and implemented by those skilled in the art, and will not be elaborated further here. As for the power system, it is connected to the PLC controller for unified adjustment and control. As for sealing, lubrication, size, strength, adjustment and control, these can be implemented and implemented by those skilled in the art, and will not be elaborated further here.

[0015] The beneficial effects of this invention are as follows:

[0016] (1) It is equipped with a crushing component. Under the up and down movement of the cam, the upper sliding column, spring and lower sliding column are driven to drive the soil breaking cone to move up and down, which helps to break the soil in advance. At the same time, if the ground with soil and rock structure is encountered, the soil and rock can be crushed, making the subsequent well drilling process easier.

[0017] (2) A spiral feeding assembly is provided. Under the combined action of the lower spiral blade and the upper spiral blade, the downward drilling speed is accelerated. The larger lower spiral blade is pre-drilled. Since its outer side is flush with the outer side of the material cylinder, the bottom of the material cylinder can easily and quickly enter below the ground. When the crushed soil and stone enter the upper spiral blade, it is driven by the upper spiral blade to carry the crushed soil and stone into the inside of the material cylinder and fall along the top edge of the material cylinder to the outside of the well. The outer diameter of the lower spiral blade is larger than that of the upper spiral blade, which can effectively prevent the crushed soil and stone from falling from the inside of the material cylinder.

[0018] (3) A material cylinder and a sampling and collection component are provided, which work together to achieve the following technical effects:

[0019] First, the collecting rod is located at the opening of the material cylinder, which seals it and ensures the sealing of the outside of the material cylinder;

[0020] Secondly, an opening is provided on the outside of the material cylinder, and a receiving trough and a sampling trough are provided on both sides of the opening. As the material cylinder rotates, the soil inside the well can be collected into the sampling trough. The sealing plate plays a scraping role, scraping the soil into the sampling trough.

[0021] Third, the positioning component is connected to the collecting rod, and the collecting rod is rotated at a small angle by the spiral feeding component to realize the position switching of the collecting rod in the receiving tank and the sampling tank;

[0022] (4) A positioning component is provided. Under the action of the push cylinder, the two ends of the arc plate are fitted into the positioning groove provided on the positioning rod. As the positioning rod rotates, it can drive the positioning component to rotate, and then drive the sampling rod to rotate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the sampling drill device in this invention.

[0024] Figure 2 This is a perspective view of the sampling drill device in this invention.

[0025] Figure 3 This is a schematic diagram of the internal structure of the sampling drill device in this invention.

[0026] Figure 4 This is a schematic diagram of the structure of the crushing component in this invention.

[0027] Figure 5 This is a schematic diagram of the limiting component in this invention.

[0028] Figure 6 This is a schematic diagram of the material cylinder in this invention.

[0029] Figure 7 This is a schematic diagram of the connection structure between the limiting component and the positioning rod in this invention.

[0030] The attached figures are labeled as follows: 1. Connecting frame; 2. Crushing component; 21. Limiting block; 22. Upper sliding column; 23. Spring; 24. Lower sliding column; 3. Cam; 4. Upper motor; 5. Camshaft; 6. Lower motor; 7. Drive gear; 8. Driven gear; 9. Positioning rod; 10. Collecting rod; 101. Push cylinder; 102. Step; 103. Arc plate; 11. Material cylinder; 111. Receiving groove; 112. Threaded hole; 113. Sampling groove; 12. Sealing plate; 13. Drill shaft; 131. Upper spiral blade; 14. Lower spiral blade; 15. Soil-breaking cone; 151. Annular groove; 16. Partition block. Detailed Implementation

[0031] To more clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0032] See Figures 1-7 A sampling drill device for well drilling includes a connecting frame 1, on which a crushing component 2 for crushing soil is provided. The crushing component 2 is connected to a cam structure and a screw feeding component. A material cylinder 11 is provided on the outside of the screw feeding component. A sampling and collection component is provided on the material cylinder 11. The sampling and collection component is linked to the crushing component 2. A positioning component is provided on the sampling and collection component. The positioning component is separately connected to the screw feeding component.

[0033] The connecting frame 1 is fixedly connected to the material cylinder 11 by bolts, and the top end of the material cylinder 11 is provided with a threaded hole 112.

[0034] The spiral feeding assembly includes a vertically arranged drill shaft 13, an upper spiral blade 131 coaxially arranged at the upper end of the drill shaft 13, a lower spiral blade 14 coaxially arranged at the lower end of the drill shaft 13, two positioning rods 9 respectively fixed on both sides of the top end of the drill shaft 13, and a fixing column connected to the top end of the two positioning rods 9. A bearing is provided on the outside of the fixing column. The outer diameter of the lower spiral blade 14 is larger than the outer diameter of the upper spiral blade 131. A material cylinder 11 is provided on the outside of the upper spiral blade 131. The outer diameter of the material cylinder 11 is the same as that of the lower spiral blade 14. The material cylinder 11 is connected to the connecting frame 1.

[0035] It should be noted that the drill shaft 13 has a through hole in the center to facilitate the lower sliding column 24 to slide up and down; the upper spiral blade 131 and the lower spiral blade 14 work together to realize the drilling operation; the positioning rod 9 has a limiting function and also has the effect of connecting the fixed column; under the limiting function of the bearing, the fixed column can rotate; the material cylinder 11 serves as a channel for the soil to rise, and the material moves upward along the material cylinder 11 and falls from the top edge of the material cylinder 11 to the outside of the well.

[0036] The breaking assembly 2 includes a vertically arranged upper sliding column 22, a spring 23 whose top end is fixedly connected to the bottom end of the upper sliding column 22, a lower sliding column 24 whose top end is fixedly connected to the bottom end of the spring 23, and a soil-breaking cone 15 fixed to the bottom end of the lower sliding column 24. A baffle block 16 is provided on the outer side of the upper end of the upper sliding column 22, and a limit block 21 is provided at the top end of the upper sliding column 22. A limit groove is opened on the upper end surface of the limit block 21. The upper sliding column 22, the lower sliding column 24 and the soil-breaking cone 15 are coaxially connected.

[0037] More preferably, an annular groove 151 is provided on the upper end face of the soil breaking cone 15, which can be locked on the outer side of the bottom end of the drill shaft 13 to limit the upward movement of the soil breaking cone 15 and ensure that the soil breaking cone 15 can always be located at the bottom end of the drill shaft 13.

[0038] The purpose of setting spring 23 is to buffer vibration. The elastic modulus of spring 23 can be adjusted according to the actual situation, as long as the effect of buffering vibration is achieved without affecting the operation. The purpose of setting the baffle block 16 is to limit the up and down sliding, ensuring that the up and down sliding movement is within a certain height range; the limit groove is set and it contacts and connects with cam 3 to limit the movement of cam 3, ensuring the smooth up and down reciprocating movement.

[0039] The lower sliding column 24 is coaxially slidably disposed at the center of the drill shaft 13, and the spring 23 and the upper sliding column 22 are disposed between the two positioning rods 9, thereby achieving the limit through the positioning rods 9.

[0040] The cam structure includes a horizontally arranged camshaft 5, a cam 3 eccentrically arranged on the camshaft 5, and an upper motor 4 driven and connected to one end of the camshaft 5. The camshaft 5 is rotatably connected to the connecting frame 1.

[0041] The fixed column is connected to the gear drive structure; the gear drive structure includes a driven gear 8 coaxially sleeved on the outside of the fixed column and a driving gear 7 meshing with the outside of the driven gear 8. The driving gear 7 has a driving shaft passing through its center, and the driving shaft is connected to the lower motor 6.

[0042] The sampling and collection assembly includes a vertically arranged collection rod 10, with outwardly protruding steps 102 on both sides of the lower end of the collection rod 10; the outer side of the material cylinder 11 has an opening that runs through both the top and bottom, the collection rod 10 is vertically arranged in the opening, and the top end of the collection rod 10 is fixedly connected to the partition block 16 by a connecting rod.

[0043] When the collecting rod 10 is exactly at the center of the opening, the opening can be completely closed.

[0044] The two sides of the opening and the outer end of the material cylinder 11 are respectively provided with a receiving groove 111 and a sampling groove 113. Two steps 102 are respectively provided in the receiving groove 111 and the sampling groove 113. The two sides of the collecting rod 10 are respectively separately attached to the inner side of the receiving groove 111 and the sampling groove 113. The outer side of the sampling groove 113 is connected to a sealing plate 12 by screws.

[0045] The sealing plate 12 actually seals the outside of the sampling trough 113 to ensure the smooth removal of soil. After the soil is collected, the screws are removed to remove the sealing plate 12.

[0046] The positioning assembly includes a horizontally positioned push cylinder 101 and an arc-shaped plate 103 fixedly connected to the free end of the push cylinder 101 on the outside. The two ends of the arc-shaped plate 103 are respectively embedded in the positioning grooves provided on the positioning rod 9.

[0047] The function of the positioning component is that when the positioning rod 9 rotates, it can drive the collection rod 10 to rotate, thereby realizing the switching and adjustment of the collection rod 10 between the receiving groove 111 and the sampling groove 113.

[0048] The specific working process of this invention is as follows:

[0049] In actual operation, the entire device can be fixed to a mobile device such as a vehicle or mobile frame through the connecting frame 1, and the device can be moved through the connecting frame 1.

[0050] The upper motor 4 and the lower motor 6 work simultaneously, driving the crushing component 2 and the screw feeding component to start working at the same time. The crushing component 2 is provided, which drives the upper sliding column 22, spring 23 and lower sliding column 24 under the up and down movement of the cam 3, driving the soil breaking cone 15 to move up and down, which helps to break the soil in advance. At the same time, if the ground is in soil and rock structure, it can break the soil and rock, making the subsequent well drilling process easier.

[0051] A spiral feeding assembly is provided. Under the combined action of the lower spiral blade 14 and the upper spiral blade 131, the downward drilling speed is accelerated. The larger lower spiral blade 14 is pre-drilled. Since its outer side is flush with the outer side of the material cylinder 11, the bottom of the material cylinder 11 can easily and quickly enter the ground. When the crushed soil and rocks enter the upper spiral blade 131, the crushed soil and rocks are driven by the upper spiral blade 131 to enter the material cylinder 11 and fall along the top edge of the material cylinder 11 to the outside of the well. The outer diameter of the lower spiral blade 14 is larger than the outer diameter of the upper spiral blade 131, which can effectively prevent the crushed soil and rocks from falling out of the material cylinder 11.

[0052] The lower sliding column 24 passes coaxially through the center of the drill shaft 13 and slides up and down at the center of the drill shaft 13. The spring 23 and the upper sliding column 22 are both located between the two positioning rods 9, and the positioning rods 9 are used to achieve the limit.

[0053] The equipment is equipped with a material cylinder 11 and a sampling and collection assembly, which work together. The collection rod 10 is located at the opening of the material cylinder 11 and seals it, ensuring the closure of the outside of the material cylinder 11. An opening is provided on the outside of the material cylinder 11, and a receiving groove 111 and a sampling groove 113 are respectively provided on both sides of the opening. As the material cylinder 11 rotates, the soil inside the well can be collected into the sampling groove 113. The sealing plate 12 plays a scraping role, scraping the soil into the sampling groove 113.

[0054] When drilling is completed, the positioning component is activated, and the push cylinder 101 pushes the arc plate 103 forward to engage with the positioning groove on the positioning rod 9. At this time, the spiral feeding component works, and the spiral feeding component drives the collecting rod 10 to rotate at a small angle. The rotation of the positioning rod 9 drives the collecting rod 10 to rotate through the positioning component, and the collecting rod 10 changes position on the receiving groove 111 and the sampling groove 113.

[0055] Specifically, the collecting rod 10 is first adjusted into the receiving groove 111, and then the material cylinder 11 is rotated by external force, so that the material cylinder 11 rotates at a certain angle close to the inside of the well. The specific angle can be adjusted according to the actual situation. At this time, the edge of the sampling groove 113, together with the sealing plate 12, will play a scraping role, scraping the soil sample from the inside of the well into the sampling groove 113. Then the collecting rod 10 is rotated again to seal the outside of the sampling groove 113 and compact the soil sample, realizing the immediate collection of soil samples. This operation has the advantage of enabling the immediate collection of soil samples at different heights on the inside of the well. People can test soil samples at different heights at the same time without confusion, resulting in higher accuracy and more reliable experimental data. It realizes the integrated operation of well sampling, which is convenient, fast and reduces costs.

[0056] A positioning component is provided. Under the action of the push cylinder 101, the two ends of the arc plate 103 are fitted into the positioning grooves provided on the positioning rod 9. As the positioning rod 9 rotates, it can drive the positioning component to rotate, thereby driving the sampling rod to rotate.

[0057] The technical features of this invention not described can be implemented by or using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this invention, and this invention is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this invention should also be within the protection scope of this invention.

Claims

1. A sampling drill device for water well drilling, comprising a connecting frame (1), characterized in that, The connecting frame (1) is provided with a crushing component (2) for crushing land. The crushing component (2) is connected to a cam structure and a screw feeding component. A material cylinder (11) is provided on the outside of the screw feeding component. A sampling and collection component is provided on the material cylinder (11). The sampling and collection component is linked to the crushing component (2). A positioning component is provided on the sampling and collection component. The positioning component is separately connected to the screw feeding component.

2. The sampling drill device for water well drilling according to claim 1, characterized in that, The spiral feeding assembly includes a vertically arranged drill shaft (13), an upper spiral blade (131) coaxially arranged at the upper end of the drill shaft (13), a lower spiral blade (14) coaxially arranged at the lower end of the drill shaft (13), two positioning rods (9) respectively fixed on both sides of the top end of the drill shaft (13), and a fixing column connected to the top end of the two positioning rods (9). The fixing column is provided with a bearing on its outer side. The outer diameter of the lower spiral blade (14) is larger than the outer diameter of the upper spiral blade (131). A material cylinder (11) is provided on the outer side of the upper spiral blade (131). The outer diameter of the material cylinder (11) is the same as that of the lower spiral blade (14). The material cylinder (11) is connected to the connecting frame (1).

3. The sampling drill device for water well drilling according to claim 1, characterized in that, The breaking component (2) includes a vertically arranged upper sliding column (22), a spring (23) whose top end is fixedly connected to the bottom end of the upper sliding column (22), a lower sliding column (24) whose top end is fixedly connected to the bottom end of the spring (23), and a soil-breaking cone (15) fixed to the bottom end of the lower sliding column (24). A baffle block (16) is provided on the outer side of the upper end of the upper sliding column (22), and a limit block (21) is provided at the top end of the upper sliding column (22). A limit groove is opened on the upper end surface of the limit block (21). The upper sliding column (22), the lower sliding column (24) and the soil-breaking cone (15) are coaxially connected.

4. A sampling drill device for water well drilling according to claim 3, characterized in that, The lower sliding column (24) is coaxially slidably disposed at the center of the drill shaft (13), and the spring (23) and the upper sliding column (22) are disposed between the two positioning rods (9).

5. A sampling drill device for water well drilling according to claim 3, characterized in that, The cam structure includes a horizontally arranged camshaft (5), a cam (3) eccentrically arranged on the camshaft (5), and an upper motor (4) driven and connected to one end of the camshaft (5). The camshaft (5) is rotatably connected to the connecting frame (1).

6. A sampling drill device for water well drilling according to claim 2, characterized in that, The fixed column is connected to the gear drive structure; the gear drive structure includes a driven gear (8) coaxially sleeved on the outside of the fixed column and a driving gear (7) meshing with the outside of the driven gear (8). The driving gear (7) has a driving shaft passing through its center and is connected to the lower motor (6).

7. A sampling drill device for water well drilling according to claim 3, characterized in that, The sampling and collection assembly includes a vertically arranged collection rod (10), with outwardly protruding steps (102) on both sides of the lower end of the collection rod (10); the outer side of the material cylinder (11) is provided with an opening that runs through both the top and bottom, the collection rod (10) is vertically arranged in the opening, and the top end of the collection rod (10) is fixedly connected to the partition block (16) by a connecting rod.

8. A sampling drill device for water well drilling according to claim 7, characterized in that, The opening is provided with a receiving groove (111) and a sampling groove (113) on both sides and the outer end of the material cylinder (11). Two steps (102) are respectively provided in the receiving groove (111) and the sampling groove (113). The two sides of the collecting rod (10) are respectively separately attached to the inner side of the receiving groove (111) and the sampling groove (113). The outer side of the sampling groove (113) is connected to a sealing plate (12) by screws.

9. A sampling drill device for water well drilling according to claim 4, characterized in that, The positioning component includes a horizontally arranged push cylinder (101) and an arc plate (103) fixedly connected to the free end of the push cylinder (101) on the outside. The two ends of the arc plate (103) are respectively embedded in the positioning grooves provided on the positioning rod (9).

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