Sampling device for geotechnical investigation

Abstract

The utility model discloses a sampling device for geotechnical investigation, which relates to the technical field of geotechnical investigation and comprises a base, a machine body is fixedly mounted at the upper end of the base, a control box is fixedly mounted at the top of the machine body, a display panel and an operating lever are respectively arranged on the control box, and an assembly box is mounted on one side of the machine body. Through the arrangement of the threaded sleeve, the threaded rod and the hand wheel, the position of the baffle below can be adjusted, finally, the baffle moves downwards to make contact with rock soil or be inserted into the rock soil, the protection effect can be achieved in the drilling and sampling process, the situation that gravel is splashed to a working area due to rotation of the coring pipe is avoided, and potential safety hazards are reduced; meanwhile, water mist is sprayed to the coring pipe through the water outlet, generated flying dust can be effectively reduced, the clamping plate is arranged in a matched mode and makes full contact with the outer wall of the coring pipe, the coring pipe can be cleaned, and disturbance generated to the inner wall of a hole in the reciprocating drilling process of the coring pipe is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rock and soil exploration, in particular to a rock and soil exploration sampling device. Background Art

[0002] The purpose of geotechnical investigation is to provide a reliable geological basis for engineering design and construction, including understanding the stratum structure, the physical and mechanical properties of rock and soil, groundwater conditions, etc., in order to evaluate the stability and bearing capacity of the foundation, and provide necessary parameters and suggestions for foundation design, slope control, underground engineering construction, etc. Geotechnical investigation work usually includes on-site exploration, sampling, indoor testing and data analysis.

[0003] Reference disclosure (announcement) number: CN221528038U discloses a sampling device for geotechnical engineering survey. By providing a sampling mechanism, automated sampling operations of rock and soil are realized, the labor intensity of staff is reduced, and the working efficiency of rock and soil sampling is improved. By providing an installation component, the staff unscrews the two hexagonal bolts, so that the cover plate can be removed from the opening, and then the rock and soil in the hollow sampling tube can be removed. By providing a limiting component, when the movable plate moves, it will also drive the limiting block to move along the track of the guide groove, which can limit the movement process of the movable plate and greatly improve the stability of the movable plate during movement.

[0004] However, in actual use, the rapid rotation of the core tube can cause the rock and soil at the top edge of the hole to splash, which can easily cause harm to operators in the work area and generate a lot of dust. It can also easily cause strong disturbance to the surrounding rock and soil, resulting in reduced stability of the hole wall, causing the hole to collapse, making sampling difficult or even impossible to obtain effective samples. In view of this, the present application proposes a rock and soil exploration sampling device. Summary of the Invention

[0005] The purpose of the utility model is to solve the potential safety hazards and environmental problems generated during the sampling process, and to ensure smooth sampling and improve the effectiveness of the samples, and to propose a geotechnical exploration sampling device.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A geotechnical exploration sampling device comprises a base, a body is fixedly mounted on the upper end of the base, a control box is fixedly mounted on the top of the body, and a display panel and a joystick are respectively provided on the control box;

[0008] An assembly box is installed on one side of the machine body, and a plurality of positioning blocks are symmetrically arranged on the side wall of the assembly box. A hydraulic oil cylinder is commonly provided on the positioning blocks arranged on one side. The two hydraulic oil cylinders are respectively connected to a connecting seat through a telescopic cylinder. A core sampling tube is provided on the assembly box, and a driving seat is provided above the assembly box.

[0009] A support plate is fixedly connected to the side wall of the assembly box, and the support plate is connected to a baffle through an adjustment mechanism. A chamber is provided inside the baffle, a hose is provided on one side of the chamber, and multiple water outlets are provided on the other side of the chamber. A clamping mechanism is provided on the top of the baffle, and the clamping mechanism includes two pins arranged in opposite positions, and an extension plate is respectively passed through the two pins, and the ends of the two extension plates away from the corresponding pins are fixedly connected to the clamping plates.

[0010] As a further preferred embodiment of the present technical solution, a fixing rod is fixedly connected to the side wall of the assembly box, and one end of the fixing rod away from the assembly box is detachably connected to the machine body through multiple sets of bolts;

[0011] The two connecting seats are symmetrically arranged on both sides of the driving seat, and the two connecting seats are movably sleeved with the bottom of the driving seat, so that the drilling depth of the core pipe can be flexibly adjusted or the core pipe can be pulled out.

[0012] As a further preferred embodiment of the present technical solution, the top of the core tube is connected to the drive seat and extends above the drive seat. A drill bit is provided at the bottom of the core tube. An extension tube is added to the core tube extending above the drive seat to increase the sampling depth.

[0013] As a further preferred embodiment of the present technical solution, the adjustment mechanism includes a threaded sleeve arranged through the support plate, a threaded rod is threadedly connected to the threaded sleeve, a handwheel is installed at the upper end of the threaded rod, and the lower end of the threaded rod is rotatably connected to the top of the baffle, so that the protection area can be flexibly adjusted according to the rock and soil conditions at the sampling location.

[0014] As a further preferred embodiment of the present technical solution, the baffle is configured as an arc-shaped plate to provide better protection, and multiple water outlets are evenly opened on the side of the baffle close to the core tube. The width of the bottom of the baffle is smaller than the width of the top of the baffle, which can reduce the dust generated during the drilling of the core tube, reduce the heat generated by the friction of the core tube, and reduce the wear on the core tube.

[0015] As a further preferred embodiment of the present technical solution, the two extension plates are respectively provided with an inclined portion and a symmetrical portion, and a spring for limiting is installed between the symmetrical portions of the two extension plates, so that the clamping plate is in full contact with the core tube, cleaning the core tube and keeping the surface of the core tube smooth.

[0016] The present invention has the following beneficial effects: 1. The present invention can adjust the position of the lower baffle by means of the threaded sleeve, threaded rod and hand wheel, and finally move the baffle downward to contact with the rock or insert into the rock, which can play a protective role in the process of drilling and sampling, and prevent the rotation of the core tube from causing gravel to splash into the working area, thereby reducing the potential safety hazards. At the same time, the water outlet sprays water mist toward the core tube, which can effectively reduce the dust generated. The clamping plate provided can fully contact the outer wall of the core tube, which can clean the core tube and reduce the disturbance of the inner wall of the hole during the reciprocating drilling of the core tube. 2. The present invention can support the upper assembly box and the drive seat by means of the baffle provided to contact with the rock or insert into the rock, thereby reducing the vibration generated during the drilling of the core tube. The clamping plates provided on both sides of the core tube can ensure that the core tube maintains vertical movement, thereby avoiding the collapse of the hole and improving the sampling quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the main structure of a rock and soil exploration sampling device proposed by the utility model.

[0019] Figure 2 This is a structural schematic diagram of a core tube of a geotechnical exploration and sampling device proposed in the utility model.

[0020] Figure 3 This is a structural schematic diagram of an adjustment mechanism of a geotechnical exploration and sampling device proposed in the utility model.

[0021] Figure 4 The present invention provides a schematic structural diagram of a clamping mechanism for a geotechnical exploration and sampling device.

[0022] In the figure: 1. Base; 2. Machine body; 3. Control box; 4. Assembly box; 41. Fixing rod; 42. Positioning block; 43. Hydraulic cylinder; 44. Telescopic cylinder; 45. Connecting seat; 5. Core tube; 6. Drive seat; 7. Support plate; 71. Threaded sleeve; 72. Threaded rod; 73. Handwheel; 74. Baffle; 75. Hose; 76. Water outlet; 81. Pin; 82. Extension plate; 83. Clamping plate; 84. Spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0024] The utility model provides a technical solution: Figure 1-4 As shown, a geotechnical exploration sampling device includes a base 1, a body 2 is fixedly mounted on the upper end of the base 1, a control box 3 is fixedly mounted on the top of the body 2, and a display panel and a joystick are respectively provided on the control box 3. The drilling depth of the core tube 5 can be observed through the display panel provided on the control box 3, and the joystick can control the connection state between the drive seat 6 and the core tube 5, so that the position of the drive seat 6 is adjusted by the hydraulic cylinder 43 and the telescopic cylinder 44.

[0025] An assembly box 4 is installed on one side of the machine body 2, and a plurality of positioning blocks 42 are symmetrically arranged on the side wall of the assembly box 4. A hydraulic cylinder 43 is commonly provided through the positioning blocks 42 arranged on one side. The two hydraulic cylinders 43 are respectively connected to a connecting seat 45 through a telescopic cylinder 44. A core sampling tube 5 is provided through the assembly box 4, and a driving seat 6 is provided above the assembly box 4.

[0026] A support plate 7 is fixedly connected to the side wall of the assembly box 4, and the support plate 7 is connected to a baffle 74 through an adjustment mechanism. A chamber is provided inside the baffle 74, one side of the chamber is connected to a hose 75, and the other side of the chamber is provided with multiple water outlets 76. A clamping mechanism is provided on the top of the baffle 74.

[0027] The clamping mechanism includes two pin shafts 81 arranged in opposite positions. An extension plate 82 is respectively passed through the two pin shafts 81 . One end of the two extension plates 82 away from the corresponding pin shaft 81 is fixedly connected to a clamping plate 83 .

[0028] Furthermore, a fixing rod 41 is fixedly connected to the side wall of the assembly box 4 , and one end of the fixing rod 41 away from the assembly box 4 is detachably connected to the body 2 via a plurality of sets of bolts.

[0029] The two connecting seats 45 are symmetrically arranged on both sides of the driving seat 6 , and the two connecting seats 45 are movably connected to the bottom of the driving seat 6 .

[0030] The telescopic cylinder 44 moves on the hydraulic cylinder 43, and the top of the telescopic cylinder 44 drives the driving seat 6 to move. When the driving seat 6 is stuck with the core tube 5 passing through the inside, the drilling depth of the core tube 5 can be flexibly adjusted or the core tube 5 can be pulled out.

[0031] The top of the core tube 5 is connected to the driving seat 6 and extends to above the driving seat 6. A drill bit is provided at the bottom of the core tube 5.

[0032] The cutting edge of the drill bit at the bottom of the core tube 5 contacts the rock and soil, allowing a hole to be drilled in the sampling area. The sampling depth can be increased by adding an extension tube to the core tube 5 extending above the drive seat 6. The top of the core tube 5 is provided with an internal thread that can be threadedly connected to one end of the extension tube.

[0033] The adjustment mechanism includes a threaded sleeve 71 that passes through the support plate 7 , a threaded rod 72 is threadedly connected to the threaded sleeve 71 , a hand wheel 73 is installed on the upper end of the threaded rod 72 , and the lower end of the threaded rod 72 is rotatably connected to the top of the baffle 74 .

[0034] By turning the handwheel 73, the threaded rod 72 is driven to rotate synchronously. Under the limiting action of the threaded sleeve 71, the threaded rod 72 will move in the vertical direction, thereby driving the baffle 74 below to move and adjust the distance between the bottom of the baffle 74 and the rock and soil surface. Furthermore, the threaded rod 72 is rotatably connected to the baffle 74. During the adjustment process, the operator can manually adjust the angle between the baffle 74 and the body 2, and can flexibly adjust the protection area according to the rock and soil conditions at the sampling location.

[0035] The baffle 74 is configured as an arc-shaped plate, and a plurality of water outlets 76 are evenly arranged on one side of the baffle 74 close to the core tube 5 . The width of the bottom of the baffle 74 is smaller than the width of the top of the baffle 74 .

[0036] When the baffle 74 is driven downward by the threaded rod 72, the bottom of the baffle 74 can fully contact the rock surface or be inserted into the rock to provide better protection. The water flow transported by the hose 75 is sprayed out from the water outlet 76, which can reduce the dust generated during the drilling process of the core tube 5, reduce the heat generated by the friction of the core tube 5, and reduce the wear on the core tube 5.

[0037] Furthermore, when the baffle 74 abuts against or is inserted into the rock and soil, it cooperates with the support plate 7 provided above to provide support for the assembly box 4, thereby reducing the vibration generated during the drilling of the core pipe 5 and reducing the disturbance to the inner wall of the hole.

[0038] The two extension plates 82 are respectively provided with an inclined portion and a symmetrical portion, and a spring 84 for limiting is installed between the symmetrical portions of the two extension plates 82 .

[0039] By means of the spring 84 arranged between the extension plates 82, the two clamping plates 83 are moved toward each other, thereby clamping the core tube 5 located in the middle, which plays a certain limiting role on the core tube 5, and cooperates with the baffle 74 to ensure that the core tube 5 maintains vertical movement, thereby improving the stability of the drilling. It should be noted that the clamping plate 83 contacts the outer wall of the core tube 5, which can scrape off the rock and soil attached to the core tube 5, clean the core tube 5, keep the surface of the core tube 5 smooth, avoid affecting the inner wall of the hole during repeated drilling, and cause the hole to collapse. After the sampling is completed, it is convenient to store the core tube 5, and there is no need to spend more extra time cleaning the core tube 5.

[0040] Each embodiment in this specification is described in a related manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. A geotechnical exploration sampling device, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly mounted with a body (2), the top of the body (2) is fixedly mounted with a control box (3), and the control box (3) is respectively provided with a display panel and a joystick; An assembly box (4) is installed on one side of the machine body (2), and a plurality of positioning blocks (42) are symmetrically arranged on the side wall of the assembly box (4). A hydraulic oil cylinder (43) is passed through the positioning blocks (42) arranged on one side. The two hydraulic oil cylinders (43) are respectively connected to a connecting seat (45) through a telescopic cylinder (44). A core tube (5) is passed through the assembly box (4), and a driving seat (6) is arranged above the assembly box (4); A support plate (7) is fixedly connected to the side wall of the assembly box (4), and the support plate (7) is connected to a baffle (74) through an adjustment mechanism. A chamber is provided inside the baffle (74), one side of the chamber is connected to a hose (75), and the other side of the chamber is provided with multiple water outlets (76). A clamping mechanism is provided on the top of the baffle (74), and the clamping mechanism includes two pins (81) arranged in a corresponding position. An extension plate (82) is respectively passed through the two pins (81), and a clamping plate (83) is fixedly connected to one end of the two extension plates (82) away from the corresponding pins (81).

2. A geotechnical investigation sampling device according to claim 1, characterized in that: A fixing rod (41) is fixedly connected to the side wall of the assembly box (4), and one end of the fixing rod (41) away from the assembly box (4) is detachably connected to the body (2) via a plurality of sets of bolts; The two connecting seats (45) are symmetrically arranged on both sides of the driving seat (6), and the two connecting seats (45) are movably sleeved with the bottom of the driving seat (6).

3. A geotechnical investigation sampling device according to claim 1, characterized in that: The top of the core tube (5) is connected to the driving seat (6) and extends to above the driving seat (6). A drill bit is provided at the bottom of the core tube (5).

4. A geotechnical investigation sampling device according to claim 1, characterized in that: The adjustment mechanism comprises a threaded sleeve (71) penetrating the support plate (7), a threaded rod (72) being threadedly connected to the threaded sleeve (71), a hand wheel (73) being mounted on the upper end of the threaded rod (72), and a lower end of the threaded rod (72) being rotatably connected to the top of the baffle (74).

5. The geotechnical investigation and sampling device according to claim 1, characterized in that: The baffle (74) is configured as an arc-shaped plate, and a plurality of water outlets (76) are evenly arranged on one side of the baffle (74) close to the core tube (5), and the width of the bottom of the baffle (74) is smaller than the width of the top of the baffle (74).

6. A geotechnical investigation sampling device according to claim 1, characterized in that: The two extension plates (82) are respectively provided with an inclined portion and a symmetrical portion, and a spring (84) for limiting is installed between the symmetrical portions of the two extension plates (82).

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