Sampling device for geotechnical engineering

Abstract

The utility model discloses a sampling device for geotechnical engineering, and relates to the technical field of geotechnical engineering. Comprising a main rod body, a sampling drill barrel and a handheld grab handle, the sampling drill barrel is arranged at the bottom end of the main rod body, the handheld grab handle is arranged at the top end of the main rod body, a lantern ring is arranged on the outer side of the main rod body, the lantern ring is in sliding connection with the main rod body, an anchoring mechanism is arranged on the outer side of the lantern ring, and the anchoring mechanism is arranged on the outer side of the lantern ring. A buffering mechanism used for damping is arranged between the handheld grab handle and the main rod body. According to the sampling device disclosed by the utility model, the buffer mechanism is arranged, so that when the sampling drill cylinder drills downwards, the buffer mechanism plays a role in damping and buffering, and the problem that a worker is easily injured by a reverse acting force is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of geotechnical engineering, in particular to a sampling device for geotechnical engineering. Background Art

[0002] All kinds of engineering projects on the ground, underground and in water are collectively referred to as civil engineering. The part of civil engineering involving rock, soil and underground is called geotechnical engineering. The objects of geotechnical engineering research are mainly rock and soil. During the entire geological history of its formation and existence, the rock has undergone various complex geological actions, so it has a complex structure and geostress field environment. Different types of rock in different regions often have very different engineering properties due to the different geological processes they have experienced. Therefore, in the process of geotechnical engineering investigation, sampling devices are often needed to sample the rock to detect geological conditions. The sampling and collection of rock samples is the basic work in the fields of rock analysis and geological exploration. By sampling the rock at different depths to measure and determine the composition and property parameters of the rock, it can be evaluated and studied.

[0003] After searching, the patent with publication number CN212693294U discloses a convenient sampling device for geotechnical engineering survey, including a two-hand grip, a main rod body and a sampling rod connected in sequence. In the solution of this patent, the top of the main rod body is directly fixedly connected to the two-hand grip. During the sampling process, when the drill bit on the sampling rod drills into a relatively hard material, it will give the user a reaction force, which is easy to cause harm to the operator. Therefore, it is urgent to design a geotechnical engineering sampling device that can play a shock-absorbing role. Utility Model Content

[0004] The main purpose of the utility model is to provide a sampling device for geotechnical engineering to solve the problems existing in the prior art.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A sampling device for geotechnical engineering comprises a main rod body, a sampling drill tube and a handheld handle, wherein the sampling drill tube is arranged at the bottom end of the main rod body, the handheld handle is arranged at the top end of the main rod body, a collar is arranged on the outer side of the main rod body, the collar is slidably connected to the main rod body, an anchoring mechanism is arranged on the outer side of the collar, and a buffer mechanism for shock absorption is arranged between the handheld handle and the main rod body.

[0007] Furthermore, a plug-in rod is provided at the bottom of the handheld handle, and a first groove matching the plug-in rod is provided at the top of the main rod body. A mounting block is fixedly provided at the top of the main rod body, and a through hole is provided at a position of the mounting block corresponding to the first groove, and the plug-in rod passes through the through hole and is installed in the first groove.

[0008] Furthermore, the buffer mechanism includes a shock-absorbing foot, a rubber pad and an alloy shock-absorbing unit, the shock-absorbing foot and the rubber pad are both fixedly arranged on the top of the mounting block, the top of the shock-absorbing foot is inserted into the second groove at the bottom end of the hand-held handle, the shock-absorbing foot is located at the end edge of the mounting block, the rubber pad is located on both sides of the plug-in rod, and the alloy shock-absorbing unit is fixedly arranged on the top of the rubber pad.

[0009] Furthermore, the alloy shock absorbing unit includes a double U-shaped alloy shock absorber and a wire rope shock absorber. The double U-shaped alloy shock absorber is fixedly installed on the top of the rubber pad, the top surface of the double U-shaped alloy shock absorber is in contact with the bottom surface of the hand-held handle, and the wire rope shock absorber is installed inside the double U-shaped alloy shock absorber.

[0010] Furthermore, the anchoring mechanism includes a plurality of support rods evenly arranged on the outside of the collar, one end of the support rod is hinged to the collar, and the other end is fixedly connected to a support seat, and an anchor is threadedly connected to the support seat.

[0011] Furthermore, the top end of the sampling drill barrel is connected to the bottom end of the main rod body via a rotating shaft, a connecting plate is provided inside the sampling drill barrel, both ends of the connecting plate are fixedly connected to the inner wall of the sampling drill barrel, a transmission rod is fixedly connected to the middle part of the connecting plate, and the top end of the transmission rod passes through the sampling drill barrel, the plug-in rod and the hand-held handle in sequence and is connected to an external drive motor.

[0012] Furthermore, anti-slip covers are provided on the outer sides of both ends of the hand-held handle.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] By setting up a buffer mechanism, when the sampling drill tube is drilling downward, it plays a role of shock absorption and buffering, avoiding the problem that the workers are easily injured by the reverse force;

[0015] By setting up an anchoring mechanism, before sampling, the support seat is brought into contact with the foundation surface of the geotechnical engineering, and then the anchor is nailed into the bottom of the foundation, thereby ensuring the stability of the sampling drill tube during sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a front view of the utility model.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model (the alloy shock absorbing unit is not shown).

[0018] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0019] Figure 4 It is a structural schematic diagram of the buffer mechanism of the utility model.

[0020] Among them, 1-main rod body, 11-mounting block, 12-rotating shaft, 2-sampling drill tube, 21-connecting plate, 22-transmission rod, 3-handheld handle, 31-plug-in rod, 32-anti-slip sleeve, 4-ring, 5-anchor mechanism, 51-support rod, 52-support seat, 53-anchor, 6-buffer mechanism, 61-shock-absorbing foot, 62-rubber pad, 63-double U-shaped alloy shock absorber, 64-wire rope shock absorber. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0022] Combination Figures 1 to 4 The utility model provides a sampling device for geotechnical engineering, comprising a main rod body 1, a sampling drill tube 2 and a handheld handle 3, wherein the sampling drill tube 2 is arranged at the bottom end of the main rod body 1, the handheld handle 3 is arranged at the top end of the main rod body 1, a collar 4 is arranged on the outer side of the main rod body 1, the collar 4 is slidably connected to the main rod body 1, an anchoring mechanism 5 is arranged on the outer side of the collar 4, and a buffer mechanism 6 for shock absorption is arranged between the handheld handle 3 and the main rod body 1.

[0023] When the sampling device of the present invention is working, the anchoring mechanism 5 is first used to stabilize the entire device on the foundation of the geotechnical engineering. Then the operator holds the handheld handle 3 tightly and uses the sampling drill tube to drill downward. During the sampling process, when the sampling drill tube drills into a relatively hard material, an upward reaction force is generated. The reaction force is transmitted from the sampling drill tube to the main rod body 1 and the handheld handle 3. In this process, the buffer mechanism 6 between the handheld handle 3 and the main rod body 1 is used for shock absorption, thereby avoiding the problem that the staff is easily injured by the reverse force.

[0024] In this embodiment, a plug-in rod 31 is provided at the bottom of the hand-held handle 3, a first groove matching the plug-in rod 31 is provided at the top of the main rod body 1, a mounting block 11 is fixedly provided at the top of the main rod body 1, a through hole is provided at the position of the mounting block 11 corresponding to the first groove, and the plug-in rod 31 passes through the through hole and is installed in the first groove. The hand-held handle 3 is connected to the main rod body 1 as a whole by matching the plug-in rod 31 with the first groove.

[0025] In this embodiment, the buffer mechanism 6 includes a shock-absorbing foot 61, a rubber pad 62 and an alloy shock-absorbing unit. The shock-absorbing foot 61 and the rubber pad 62 are both fixedly arranged at the top of the mounting block 11. The top of the shock-absorbing foot 61 is inserted into the second groove at the bottom end of the hand-held handle 3. The shock-absorbing foot 61 is located at the end edge of the mounting block 11. The rubber pad 62 is located on both sides of the plug-in rod 31. The alloy shock-absorbing unit is fixedly arranged at the top of the rubber pad 62.

[0026] Preferably, the material of the shock-absorbing foot 61 is selected from one of polyurethane foam, polyurethane elastomer, polyphenyl foam, PVC foam, PMI foam, and polyimide foam, and combined with the rubber pad 62, it has the effect of absorbing energy and reducing impact force.

[0027] Preferably, the alloy shock absorber unit includes a double U-shaped alloy shock absorber 63 and a wire rope shock absorber 64, the double U-shaped alloy shock absorber 63 is fixedly installed on the top of the rubber pad 62, the top surface of the double U-shaped alloy shock absorber 63 is in contact with the bottom surface of the hand-held handle 3, and the wire rope shock absorber 64 is installed inside the double U-shaped alloy shock absorber 63.

[0028] The double U-shaped alloy shock absorber 63 is made of high manganese-based damping alloy material, and its supporting stiffness is greatly increased, which can better play the role of shock absorption and energy consumption. The double U-shaped alloy shock absorber 63 and the wire rope shock absorber 64 are combined to further improve the effect of energy consumption and shock absorption and the service life. When the impact force is not large, the double U-shaped alloy shock absorber 63 does not deform beyond the threshold after being impacted, and it can work alone to reduce shock without using the wire rope shock absorber 64. When the double U-shaped alloy shock absorber 63 is deformed too much, the wire rope shock absorber 64 contacts the plane at the top of the double U-shaped alloy shock absorber 63. At this time, the wire rope shock absorber 64 reduces shock and consumes energy. The combination of the two has a better effect; and even if the wire rope shock absorber 64 fails temporarily, it can be restored to use after correction, and has the advantages of long service life and strong anti-destruction.

[0029] In this embodiment, the anchoring mechanism 5 includes a plurality of support rods 51 evenly arranged on the outside of the collar 4, one end of the support rod 51 is hinged to the collar 4, and the other end is fixedly connected to a support seat 52, and an anchor 53 is threadedly connected to the support seat 52.

[0030] Before sampling, first slide the ring 4 to a suitable position and adjust the angle of the support rod 51 so that the support seat 52 contacts the foundation of the geotechnical engineering. Then, nail the anchor 53 into the foundation to fix the entire sampling device on the foundation to ensure stability during the sampling process.

[0031] In this embodiment, the top end of the sampling drill barrel 2 is connected to the bottom end of the main rod body 1 through a rotating shaft 12, and a connecting plate 21 is provided inside the sampling drill barrel 2. Both ends of the connecting plate 21 are fixedly connected to the inner wall of the sampling drill barrel 2, and a transmission rod 22 is fixedly connected to the middle part of the connecting plate 21. The top end of the transmission rod 22 passes through the sampling drill barrel 2, the plug-in rod and the hand-held handle 3 in sequence and is connected to an external drive motor.

[0032] When sampling, the drive motor is turned on, and the drive motor drives the connecting plate 21 to rotate through the transmission rod 22. Since the connecting plate 21 is fixedly connected to the sampling drill barrel 2, the sampling drill barrel 2 rotates with it. The operator holds the hand-held handle 3 and presses down hard. The sampling drill barrel 2 moves downward while rotating. After descending to the depth required for sampling, the drive motor is turned off, and the sampling drill barrel 2 is then pulled out upward to complete the sampling work.

[0033] In this embodiment, the two ends of the hand-held handle 3 are covered with anti-skid sleeves 32. The provision of the anti-skid sleeves 32 can make the operator more stable when holding the hand-held handle 3, and prevent the hand from slipping.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A sampling device for geotechnical engineering, characterized in that: It comprises a main rod body, a sampling drill tube and a handheld handle, wherein the sampling drill tube is arranged at the bottom end of the main rod body, the handheld handle is arranged at the top end of the main rod body, a collar is arranged on the outside of the main rod body, the collar is slidably connected to the main rod body, an anchoring mechanism is arranged on the outside of the collar, and a buffer mechanism for shock absorption is arranged between the handheld handle and the main rod body; A plug-in rod is provided at the bottom of the hand-held handle, a first groove matching the plug-in rod is provided at the top of the main rod body, a mounting block is fixedly provided at the top of the main rod body, a through hole is provided at a position of the mounting block corresponding to the first groove, the plug-in rod passes through the through hole and is installed in the first groove; The buffer mechanism includes a shock-absorbing foot, a rubber pad and an alloy shock-absorbing unit. The shock-absorbing foot and the rubber pad are both fixedly arranged on the top of the mounting block. The top of the shock-absorbing foot is inserted into the second groove at the bottom end of the hand-held handle. The shock-absorbing foot is located at the end edge of the mounting block, the rubber pad is located on both sides of the plug-in rod, and the alloy shock-absorbing unit is fixedly arranged on the top of the rubber pad.

2. A sampling device for geotechnical engineering according to claim 1, characterized in that: The alloy shock absorbing unit includes a double U-shaped alloy shock absorber and a wire rope shock absorber. The double U-shaped alloy shock absorber is fixedly installed on the top of the rubber pad. The top surface of the double U-shaped alloy shock absorber is in contact with the bottom surface of the hand-held handle. The wire rope shock absorber is installed inside the double U-shaped alloy shock absorber.

3. A sampling device for geotechnical engineering according to claim 1, characterized in that: The anchoring mechanism comprises a plurality of support rods evenly arranged outside the collar, one end of the support rod is hinged to the collar, and the other end is fixedly connected to a support seat, and an anchor is threadedly connected to the support seat.

4. A sampling device for geotechnical engineering according to claim 1, characterized in that: The top end of the sampling drill barrel is connected to the bottom end of the main rod body via a rotating shaft, a connecting plate is provided inside the sampling drill barrel, both ends of the connecting plate are fixedly connected to the inner wall of the sampling drill barrel, a transmission rod is fixedly connected to the middle part of the connecting plate, and the top end of the transmission rod passes through the sampling drill barrel, the plug-in rod and the hand-held handle in sequence and is connected to an external driving motor.

5. A sampling device for geotechnical engineering according to claim 1, characterized in that: Anti-slip sleeves are provided on the outer sides of both ends of the hand-held handle.

Images