Cone dynamic sounding device for geotechnical engineering

Abstract

The utility model relates to the technical field of geotechnical survey, in particular to a geotechnical engineering cone dynamic sounding device which comprises a first positioning ring and a second positioning ring, the second positioning ring is located on the upper side of the first positioning ring, positioning through holes are formed in the first positioning ring and the second positioning ring, drill rods are inserted into the positioning through holes, and the drill rods are connected with the first positioning ring and the second positioning ring. Four sets of first supporting rods are fixedly connected to the side face of the first positioning ring, a supporting mechanism is arranged at the ends, away from the first positioning ring, of the first supporting rods, and the supporting mechanism comprises a supporting block, a supporting pad, an inserting rod, a second lead screw, a second nut and a third nut; the second screw rod is inserted into the first insertion hole; and by adjusting the height of a third nut, the height of the first supporting rod is adjusted, the levelness of the two sets of positioning rings is adjusted, the perpendicularity of the drill rod is effectively kept, the drill rod is made to adapt to different geological environments, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rock and soil survey, in particular to a rock and soil engineering cone dynamic penetration device. Background Art

[0002] The dynamic penetration test, also known as the cone dynamic penetration test (DPT), uses a heavy hammer of a certain mass to drive a standard-specification probe connected to a probe rod into the soil. The mechanical properties of the soil are determined by the number of blows required when the probe penetrates 10 cm or 30 cm into the soil (N10 is counted once every 30 cm, and N63.5 and N120 are counted once every 10 cm).

[0003] Among them, announcement number CN209989792U discloses a cone dynamic sounding test device, which relates to the technical field of geotechnical survey. It includes a sounding unit and a positioning unit; the sounding unit includes a plurality of plug-in drill rods, the end of the drill rod at the lowest end is threadedly connected with a conical head, and the drill rod at the uppermost end is threadedly connected with an impact rod, a heavy hammer is sleeved on the circumference of the impact rod, and a hammer plate is fixed on the end of the impact rod close to the conical head; the positioning unit includes two mutually hinged arc plates, and the two arc plates together form a positioning ring sleeved on the circumference of the drill rod, and the side wall of the positioning ring is fixed with a support frame for supporting on the ground, and the side wall of the positioning ring is provided with a locking assembly at one end away from the hinge of the two arc plates. The utility model positions the penetration direction of the drill rod by disassembling the positioning ring, and the drill rod is not easy to tilt, which not only ensures the safety of the workers, but also improves the accuracy of the test.

[0004] During use, the device supports the lower end of the drill rod through the positioning ring, and uses a support frame to support the positioning ring and the drill rod. At the same time, the horizontality of the positioning ring is detected by combining the glass groove and the bubble. However, the support frame is fixed. When the positioning ring is in an inclined state, it is inconvenient to adjust the angle of the positioning ring, and the device has low adaptability to terrain.

[0005] Therefore, it is necessary to invent a geotechnical engineering cone dynamic penetration device to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a geotechnical engineering cone dynamic probing device to solve the problem that the supporting frame is fixed, when the positioning ring is in an inclined state, it is inconvenient to adjust the angle of the positioning ring and the adaptability to the terrain is low.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a geotechnical engineering cone dynamic probing device, comprising a first positioning ring and a second positioning ring, the second positioning ring is located on the upper side of the first positioning ring, the first positioning ring and the second positioning ring are both provided with positioning through holes, a drill rod is inserted into the positioning through holes, four groups of first support rods are fixedly connected to the side of the first positioning ring, a support mechanism is provided at one end of the first support rod away from the first positioning ring, the support mechanism comprises a support block, a support pad, an insertion rod, a second screw rod, a second nut and a third nut, a first plugging hole is provided at one end of the first support rod away from the first positioning ring, and the second screw rod is inserted into the first plugging hole.

[0008] By adopting the above technical solution, the first positioning ring and the second positioning ring support the drill rod, and the support is provided at two points to further improve the stability of the drill rod. At the same time, the two sets of positioning rings are fixed by the supporting mechanism, and the horizontality of the two sets of positioning rings is adjusted by adjusting the position of the third nut.

[0009] Optionally, the second nut and the third nut are both threadedly connected to the second screw rod, and the second nut and the third nut are respectively located on the upper and lower sides of the first support rod.

[0010] By adopting the above technical solution, the position of the third nut is adjusted, thereby adjusting the height of the first support rod, and at the same time, the first support rod is locked in cooperation with the second nut.

[0011] Optionally, the lower end of the second screw rod is fixedly connected to the support block, the lower end of the support block is fixedly connected to the support pad, and the lower surface of the support pad is fixedly connected to the insertion rod.

[0012] Optionally, a first screw rod is fixedly connected to one end of the upper surface of the first support rod away from the first positioning ring, and a first nut is threadedly connected to the surface of the first screw rod.

[0013] Optionally, four groups of second support rods are fixedly connected to the side of the second positioning ring, and the second support rods are each provided with a second plugging hole at one end away from the second positioning ring, and the first screw rod is plugged into the inside of the second plugging hole.

[0014] By adopting the above technical solution, the first screw rod is inserted into the second plug hole, and the first nut is tightened to lock and fix the second support rod, thereby fixing the second positioning ring on the upper side of the first fixing ring.

[0015] Optionally, an impact rod is provided on the upper side of the drill rod, a impact block is fixedly connected to the lower end of the impact rod, and a hammer block is slidably connected to the surface of the impact rod.

[0016] Optionally, a drill bit is provided on the lower side of the drill rod, and a threaded rod is fixedly connected to the drill bit and the upper end of the drill rod.

[0017] Optionally, threaded holes are provided at the lower ends of the drill rod and the impact block, and the threaded rod is threadedly connected to the corresponding threaded holes.

[0018] By adopting the above technical solution, the screw rod is connected to the corresponding threaded hole, and then the drill rod, the impact rod and the drill bit are connected.

[0019] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0020] 1. The utility model adjusts the height of the third nut, thereby adjusting the height of the end of the first support rod away from the first positioning ring, thereby adjusting the horizontality of the two sets of positioning rings, effectively maintaining the verticality of the drill rod, making it adaptable to different geological environments, improving practicality, and solving the problem that the support frame is fixed in the technology, when the positioning ring is in an inclined state, it is inconvenient to adjust the angle of the positioning ring, and the adaptability to the terrain is low;

[0021] 2. The utility model supports the drill rod by using two sets of positioning rings, and further improves the stability of the drill rod through two-point support. At the same time, the second positioning ring is fixed by using the first screw and the first nut, which makes it easy to disassemble and carry the positioning ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the positioning ring structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the first support rod structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the second support rod of the utility model;

[0026] Figure 5 This is a schematic diagram of the support mechanism structure of the utility model;

[0027] Figure 6 This is a schematic diagram of the drill rod structure of the utility model.

[0028] Description of reference numerals:

[0029] 1. First positioning ring; 11. First support rod; 12. First screw rod; 13. First nut; 14. First plug hole; 15. Positioning through hole; 2. Second positioning ring; 21. Second support rod; 22. Second plug hole; 3. Support block; 31. Support pad; 32. Insert rod; 33. Second screw rod; 34. Second nut; 35. Third nut; 4. Drill rod; 41. Threaded rod; 42. Impact rod; 43. Impact block; 44. Drill bit; 45. Hammer block. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] The utility model provides Figures 1 to 4 A geotechnical engineering cone dynamic probing device shown in the figure comprises a first positioning ring 1 and a second positioning ring 2, the second positioning ring 2 is located on the upper side of the first positioning ring 1, and positioning through holes 15 are provided inside the first positioning ring 1 and the second positioning ring 2, and a drill rod 4 is inserted into the positioning through hole 15, and four groups of first support rods 11 are fixedly connected to the side of the first positioning ring 1, and a first screw rod 12 is fixedly connected to the end of the upper surface of the first support rod 11 away from the first positioning ring 1, and a first nut 13 is threadedly connected to the surface of the first screw rod 12, and four groups of second support rods 21 are fixedly connected to the side of the second positioning ring 2, and a second plugging hole 22 is provided at the end of the second support rod 21 away from the second positioning ring 2, and the first screw rod 12 is inserted into the inside of the second plugging hole 22, and a support mechanism is provided at the end of the first support rod 11 away from the first positioning ring 1, and the support mechanism comprises a support block 3, a support pad 31, an insertion rod 32, a second screw rod 33, a second nut 34 and a third nut 35.

[0032] During use, the second positioning ring 2 is placed on the upper side of the first positioning ring 1, and the first screw rod 12 is inserted into the second plug hole 22, and the second support rod 21 is locked by the first nut 13, and the first positioning ring 1 and the second positioning ring 2 are locked and fixed, and then the two sets of positioning rings are supported and fixed by locking the supporting mechanism and the first support rod 11, and then the drill rod 4 is inserted into the positioning through hole 15 inside the two sets of positioning rings for use.

[0033] See also Figure 5A first plug hole 14 is opened at one end of the first support rod 11 away from the first positioning ring 1, and the second screw rod 33 is inserted into the inside of the first plug hole 14. The second nut 34 and the third nut 35 are both threadedly connected to the second screw rod 33. The second nut 34 and the third nut 35 are respectively located on the upper and lower sides of the first support rod 11. The lower end of the second screw rod 33 is fixedly connected to the support block 3, and the lower end of the support block 3 is fixedly connected to the support pad 31. The lower surface of the support pad 31 is fixedly connected to the insertion rod 32.

[0034] Specifically, when installing the supporting mechanism, first insert the second screw rod 33 into the first plug hole 14, then insert the plug rod 32 in the four groups of supporting mechanisms into the soil to support the two groups of positioning rings, and then use a spirit level to measure the levelness of the positioning rings. At this time, turn the third nut 35 on the lower side upward, lift the first support rod 11 on the corresponding side upward, and adjust the levelness of the positioning ring. After the adjustment is completed, use the second nut 34 to lock and fix the first support rod 11, and put the positioning ring into use.

[0035] See also Figure 6 A striking rod 42 is provided on the upper side of the drill rod 4, a striking block 43 is fixedly connected to the lower end of the striking rod 42, a hammer block 45 is slidably connected to the surface of the striking rod 42, a drill bit 44 is provided on the lower side of the drill rod 4, a threaded rod 41 is fixedly connected to the upper end of the drill bit 44 and the drill rod 4, threaded holes are provided at the lower ends of the drill rod 4 and the striking block 43, and the threaded rod 41 is threadedly connected to the corresponding threaded holes.

[0036] In addition, by connecting the threaded rod 41 with the corresponding threaded hole, the upper and lower ends of the drill rod 4 are respectively connected to the impact block 43 and the drill bit 44, and then the drill rod 4 is inserted into the interior of the positioning through hole 15. At this time, the two sets of positioning rings support the drill rod 4, and finally the hammer block 45 is mounted on the surface of the impact rod 42 to perform a hammer test.

[0037] The working principle of the utility model is as follows: in order to facilitate the adjustment of the horizontality of the positioning ring and make the equipment suitable for use in different terrains, the height of the third nut 35 is adjusted, and then the height of the first support rod 11 away from the end of the first positioning ring 1 is adjusted, so as to adjust the horizontality of the two groups of positioning rings, effectively maintain the verticality of the drill rod 4, make it adapt to different geological environments, and improve practicality.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only preferred examples of the utility model, and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A geotechnical engineering cone dynamic penetration device, comprising a first positioning ring (1) and a second positioning ring (2), characterized in that: The second positioning ring (2) is located on the upper side of the first positioning ring (1); positioning through holes (15) are provided inside the first positioning ring (1) and the second positioning ring (2); a drill rod (4) is inserted into the positioning through holes (15); four groups of first support rods (11) are fixedly connected to the side of the first positioning ring (1); a support mechanism is provided at one end of the first support rod (11) away from the first positioning ring (1); the support mechanism comprises a support block (3), a support pad (31), an insertion rod (32), a second screw rod (33), a second nut (34) and a third nut (35); a first plugging hole (14) is provided at one end of the first support rod (11) away from the first positioning ring (1); the second screw rod (33) is plugged into the first plugging hole (14).

2. A geotechnical engineering cone dynamic penetration device according to claim 1, characterized in that: The second nut (34) and the third nut (35) are both threadedly connected to the second screw rod (33), and the second nut (34) and the third nut (35) are respectively located on the upper and lower sides of the first support rod (11).

3. A geotechnical engineering cone dynamic penetration device according to claim 2, characterized in that: The lower end of the second screw rod (33) is fixedly connected to the support block (3), the lower end of the support block (3) is fixedly connected to the support pad (31), and the lower surface of the support pad (31) is fixedly connected to the insertion rod (32).

4. A geotechnical engineering cone dynamic penetration device according to claim 1, characterized in that: A first screw rod (12) is fixedly connected to one end of the upper surface of the first support rod (11) away from the first positioning ring (1), and a first nut (13) is threadedly connected to the surface of the first screw rod (12).

5. A geotechnical engineering cone dynamic penetration device according to claim 4, characterized in that: Four groups of second support rods (21) are fixedly connected to the side surface of the second positioning ring (2), and the second support rods (21) are each provided with a second plugging hole (22) at one end away from the second positioning ring (2), and the first screw rod (12) is plugged into the inside of the second plugging hole (22).

6. A geotechnical engineering cone dynamic penetration device according to claim 1, characterized in that: An impact rod (42) is arranged on the upper side of the drill rod (4), an impact block (43) is fixedly connected to the lower end of the impact rod (42), and a hammer block (45) is slidably connected to the surface of the impact rod (42).

7. A geotechnical engineering cone dynamic penetration device according to claim 6, characterized in that: A drill bit (44) is provided on the lower side of the drill rod (4), and a threaded rod (41) is fixedly connected to the drill bit (44) and the upper end of the drill rod (4).

8. A geotechnical engineering cone dynamic penetration device according to claim 7, characterized in that: The lower ends of the drill rod (4) and the impact block (43) are both provided with threaded holes, and the threaded rod (41) is threadedly connected to the corresponding threaded holes.

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