A sampling drilling machine for soil and groundwater environmental investigation

Abstract

The utility model relates to the technical field of sampling drilling machine, concretely to a kind of sampling drilling machine for soil and groundwater environmental investigation, including movable frame, its top middle part is fixedly connected with rack, and sampling mechanism is arranged on rack;Fixed frame is fixedly connected to the both sides of movable frame, and limit mechanism is arranged on fixed frame;Chassis is fixedly connected to the bottom middle part of movable frame, and mud scraping mechanism is arranged on chassis.The utility model uses the cooperation of anchoring cone pole and screw rod two, so that anchoring cone pole can be pressed into below ground, realizes the rigid anchoring of equipment and ground, effectively resists the huge reverse torsional force and horizontal vibration generated in drilling operation, solves the problem that flat pad leads to equipment skidding, twisting or deviation due to insufficient static friction, and guarantees the perpendicularity of sampling hole.

Description

Technical Field

[0001] This utility model relates to the field of sampling drilling technology, specifically a sampling drilling machine for soil and groundwater environmental surveys. Background Technology

[0002] Sampling refers to the methods of collecting samples, including sampling layout and sampling techniques. Sampling of soil and groundwater environments is usually carried out with the help of sampling equipment.

[0003] As disclosed in CN221256657U, a sampling drill for soil and groundwater environmental surveys includes a base. Two vertical rods are fixedly connected to the upper end of the base. Movable plates are mounted on the side walls of the two vertical rods. A motor is mounted on the upper end of the movable plates. A rotating column is mounted on the output end of the motor. Two fixing blocks are fixedly connected to both sides of the base, and mounting columns are fixedly connected to the upper ends of multiple fixing blocks. The beneficial effects of this invention are as follows: The structure utilizes the cooperation between the vertical rods and the movable plates to support the motor, which moves automatically under the push of the electric rod. This makes it convenient to use. The cooperation between the movable rods and the pads ensures the stability of the device, preventing tilting and ensuring safety during sampling.

[0004] Although the aforementioned patent includes a pad for support on the ground, the lower surface of the pad is flat, relying mainly on its own weight and simple vertical pressure for stability. During drilling and sampling, the friction between the drill bit and the soil generates enormous reverse torsional forces and horizontal vibrations. The static friction between the flat pad and the ground is limited, making it difficult to effectively resist these horizontal forces. This can easily cause the entire device to slip, twist, or "deviate," affecting not only the verticality of the sampling hole and the accuracy of the sampling position but also posing safety hazards. Utility Model Content

[0005] The purpose of this invention is to provide a sampling drilling rig for soil and groundwater environmental surveys, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A sampling drilling rig for soil and groundwater environmental surveys, including A mobile frame is fixedly connected to the top center of the frame, and a sampling mechanism is installed on the frame. A fixed frame is symmetrically fixedly connected to both sides of the movable frame, and a limit mechanism is provided on the fixed frame; The base frame is fixedly connected to the middle of the bottom of the mobile frame, and a mud scraping mechanism is provided on the base frame.

[0007] Preferably, the sampling mechanism includes a motor 1 fixedly connected to the middle of the top of the frame, and a lifting plate disposed in the middle of the frame. A sleeve is fixedly connected to the middle of the top of the lifting plate. A lead screw 1 that is threadedly connected to the sleeve is fixedly connected to the output shaft of the motor 1. A housing is fixedly connected to the middle of the bottom of the lifting plate. A motor 2 is fixedly connected inside the housing. A sampling drill pipe is fixedly connected to the output shaft of the motor 2 through the housing. Preferably, the sampling mechanism further includes slid grooves symmetrically formed on the inner walls of both sides of the frame, and sliders symmetrically fixedly connected to the outer sides of the lifting plate, with the sliders slidingly engaging with the slid grooves; Preferably, the limiting mechanism includes a screw rod II threaded to the middle of the fixed frame and a pressure plate disposed below the fixed frame. The output shaft of the screw rod II is rotatably connected to the top center of the pressure plate through a bearing. Several anchoring cone rods are evenly distributed at the bottom end of the pressure plate. A handwheel is fixedly connected to the top end of the screw rod II. Moving wheels are fixedly connected to the four corners of the bottom end of the movable frame. Preferably, the limiting mechanism further includes guide rods symmetrically fixedly connected to the top ends of both sides of the pressure plate, and movable holes extending through both ends of the fixed frame, wherein the guide rods are slidably connected to the movable holes; Preferably, the sludge scraping mechanism includes a positioning hole that extends through the middle of the base frame, and a sludge scraping cone sleeve that is fixedly connected to the lower end face of the positioning hole. The sampling drill pipe, the positioning hole, and the sludge scraping cone sleeve are on the same central axis.

[0008] Compared with the prior art, the beneficial effects of this utility model are: This sampling drill for soil and groundwater environmental surveys uses the combination of an anchoring cone and a screw rod to press the anchoring cone into the ground, achieving rigid anchoring of the equipment to the ground. This effectively resists the huge reverse torsional force and horizontal vibration generated during drilling operations, solves the problem of equipment slippage, twisting or deviation caused by insufficient static friction of the flat pad, and ensures the verticality of the sampling hole.

[0009] This sampling drill for soil and groundwater environmental surveys automatically scrapes away the soil adhering to its outer wall during the lifting process of the sampling drill pipe by using a mud scraping cone sleeve in conjunction with the sampling drill pipe, thus solving the problem of low efficiency of manual cleaning. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall main structure of this utility model; Figure 2 This is a schematic diagram of the mud scraping cone sleeve structure of this utility model; Figure 3 This is a schematic diagram of the lead screw mounting structure of this utility model; Figure 4 For the present utility model Figure 1Enlarged diagram of point A in the middle.

[0011] In the diagram: 1. Moving frame; 2. Machine frame; 3. Fixed frame; 4. Base frame; 5. Lifting plate; 6. Sleeve; 7. Lead screw one; 8. Machine housing; 9. Motor two; 10. Sampling drill pipe; 11. Slide groove; 12. Sliding block; 13. Lead screw two; 14. Pressure plate; 15. Anchoring cone rod; 16. Handwheel; 17. Moving wheel; 18. Guide rod; 19. Movable hole; 20. Positioning hole; 21. Scraper cone sleeve; 22. Motor one. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] like Figure 1-4 As shown, this utility model provides a technical solution: A sampling drill for soil and groundwater environmental surveys includes a mobile frame 1, with a frame 2 fixedly connected to its top center. A sampling mechanism is mounted on the frame 2, comprising a motor 22 fixedly connected to the top center of the frame 2, and a lifting plate 5 located in the middle of the frame 2. A sleeve 6 is fixedly connected to the top center of the lifting plate 5. A lead screw 7 threadedly connected to the sleeve 6 is fixedly connected to the output shaft of the motor 22. A housing 8 is fixedly connected to the bottom center of the lifting plate 5. A second motor 9 is fixedly connected inside the housing 8. A sampling drill pipe 10 is fixedly connected through the housing 8. The sampling mechanism also includes symmetrically formed grooves 11 on the inner walls of both sides of the frame 2, and symmetrically fixedly connected sliders 12 on the outer sides of both sides of the lifting plate 5, the sliders 12 slidingly engaging with the grooves 11. A fixed frame 3 is symmetrically fixedly connected to both sides of the mobile frame 1, and a limit mechanism is provided on the fixed frame 3. The positioning mechanism includes a screw rod 13 threaded to the middle of the fixed frame 3, and a pressure plate 14 located below the fixed frame 3. The output shaft of the screw rod 13 is rotatably connected to the top center of the pressure plate 14 via a bearing. Several anchoring cone rods 15 are evenly distributed at the bottom of the pressure plate 14. A handwheel 16 is fixedly connected to the top of the screw rod 13. Moving wheels 17 are fixedly connected to the four corners of the bottom of the moving frame 1. The limiting mechanism also includes guide rods 18 symmetrically fixedly connected to the top of both sides of the pressure plate 14, and movable holes 19 penetrating through both ends of the fixed frame 3. The guide rods 18 and movable holes 19 are slidably connected. The base frame 4 is fixedly connected to the middle of the bottom of the moving frame 1. A mud scraping mechanism is provided on the base frame 4. The mud scraping mechanism includes a positioning hole 20 penetrating through the middle of the base frame 4, and a mud scraping cone sleeve 21 fixedly connected to the lower end face of the positioning hole 20. The sampling drill pipe 10, the positioning hole 20, and the mud scraping cone sleeve 21 are on the same central axis. In this embodiment, the anchoring cone rod 15 and the screw rod 13 work together to press the anchoring cone rod 15 into the ground, achieving rigid anchoring of the equipment to the ground. This effectively resists the huge reverse torsional force and horizontal vibration generated during drilling operations, solves the problem of equipment slippage, twisting or deviation caused by insufficient static friction of the flat pad, and ensures the verticality of the sampling hole.

[0014] Furthermore, by using the mud scraper cone sleeve 21 in conjunction with the sampling drill pipe 10, the mud attached to the outer wall of the sampling drill pipe 10 is automatically scraped off during the lifting process, thus solving the problem of low efficiency of manual cleaning.

[0015] Working principle: When soil sampling is required, the mobile frame 1 is first moved to the predetermined sampling point via the moving wheels 17. Then, the operator turns the handwheel 16 to rotate the lead screw 13, causing the pressure plate 14 and its bottom anchoring cone 15 to move downwards. The anchoring cone 15 is pressed into the ground, and at the same time, the guide rod 18 slides along the movable hole 19 to guide it, thereby firmly anchoring the entire mobile frame 1 to the ground and preventing the equipment from shifting or tipping over during the sampling process. Next, the motor 22 is started to drive the lead screw 7 to rotate. Since the lead screw 7 is threadedly engaged with the sleeve 6 fixedly connected to the lifting plate 5, The lifting plate 5 is slidably connected to the slide groove 11 on the frame 2 via the sliders 12 on both sides, thereby driving the lifting plate 5, together with the chassis 8 at its bottom, the second motor 9 and the sampling drill pipe 10, to move smoothly downwards; at the same time, the second motor 9 is started to drive the sampling drill pipe 10 to rotate, and the rotating sampling drill pipe 10 drills into the soil layer; after sampling is completed, the first motor 22 is controlled to reverse and lift the sampling drill pipe 10. During the lifting process, the mud scraper cone sleeve 21 fixed on the base frame 4 will scrape off the soil attached to the outer wall of the sampling drill pipe 10; after the sampling drill pipe 10 is completely lifted above the ground, the soil sample inside can be obtained.

[0016] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sampling drilling rig for soil and groundwater environmental surveys, characterized in that: include A mobile frame (1) is fixedly connected to a frame (2) at its top center, and a sampling mechanism is provided on the frame (2); A fixed frame (3) is symmetrically fixedly connected to both sides of the movable frame (1), and a limit mechanism is provided on the fixed frame (3); The base frame (4) is fixedly connected to the middle of the bottom end of the movable frame (1), and a mud scraping mechanism is provided on the base frame (4).

2. A sampling drilling rig for soil and groundwater environmental surveys according to claim 1, characterized in that: The sampling mechanism includes a motor (22) fixedly connected to the middle of the top of the frame (2) and a lifting plate (5) set in the middle of the frame (2). A sleeve (6) is fixedly connected to the middle of the top of the lifting plate (5). A screw (7) threadedly connected to the sleeve (6) is fixedly connected to the output shaft of the motor (22). A housing (8) is fixedly connected to the middle of the bottom of the lifting plate (5). A motor (9) is fixedly connected inside the housing (8). A sampling drill pipe (10) is fixedly connected through the output shaft of the motor (9) through the housing (8).

3. A sampling drilling rig for soil and groundwater environmental surveys according to claim 2, characterized in that: The sampling mechanism also includes slid grooves (11) symmetrically opened on the inner walls of both sides of the frame (2), and sliders (12) symmetrically fixed to the outside of both sides of the lifting plate (5), with the sliders (12) slidingly engaged with the slid grooves (11).

4. A sampling drilling rig for soil and groundwater environmental surveys according to claim 1, characterized in that: The limiting mechanism includes a screw rod 2 (13) threaded to the middle of the fixed frame (3) and a pressure plate (14) located below the fixed frame (3). The output shaft of the screw rod 2 (13) is rotatably connected to the top center of the pressure plate (14) through a bearing. Several anchoring cone rods (15) are evenly distributed at the bottom end of the pressure plate (14). A handwheel (16) is fixedly connected to the top end of the screw rod 2 (13). Moving wheels (17) are fixedly connected to the four corners of the bottom end of the moving frame (1).

5. A sampling drilling rig for soil and groundwater environmental surveys according to claim 4, characterized in that: The limiting mechanism also includes guide rods (18) symmetrically fixedly connected to the top of both sides of the pressure plate (14), and movable holes (19) through which the fixed frame (3) is opened at both ends. The guide rods (18) and movable holes (19) are slidably connected.

6. A sampling drilling rig for soil and groundwater environmental surveys according to claim 2, characterized in that: The mud scraping mechanism includes a positioning hole (20) that passes through the middle of the base frame (4) and a mud scraping cone sleeve (21) that is fixedly connected to the lower end face of the positioning hole (20). The sampling drill pipe (10), the positioning hole (20) and the mud scraping cone sleeve (21) are on the same central axis.

Images