Sounding machine for geotechnical engineering investigation

Abstract

The utility model relates to a sounding machine for geotechnical engineering investigation, and relates to the technical field of geotechnical engineering investigation, the sounding machine comprises a base, a mounting frame arranged on the base, a material supplementing box arranged on the mounting frame, a fixing rod and a sliding seat, two hydraulic cylinders are mounted on one side, close to the base, of the mounting frame, and telescopic rods of the two hydraulic cylinders are fixedly connected with the sliding seat; a clamping mechanism is arranged on the sliding seat, the base and the mounting frame are jointly in sliding fit with a probe rod along the axis, a material supplementing cavity is formed in the material supplementing box, a plurality of extension rods are arranged in the material supplementing cavity side by side, a material supplementing hole coaxial with the probe rod is formed in one side of the bottom face of the material supplementing cavity, and a material pushing mechanism is arranged in the material supplementing cavity. Butt-joint screw holes are formed in the upper portions of the probe rod and the extension rods, butt-joint screw heads in threaded fit with the butt-joint screw holes are arranged at the lower ends of the extension rods, and a clamping rotating mechanism is arranged at the position, on the probe rod, of the mounting frame. The feeler lever lengthening device has the advantages that the feeler lever can be automatically lengthened when the feeler machine works, and manual operation is avoided.

Description

Technical Field

[0001] This application relates to the field of geotechnical engineering investigation technology, and in particular to a sounding machine for geotechnical engineering investigation. Background Technique

[0002] Static sounding, as a method for in-situ testing of soil in the field of geotechnical engineering technology, is to use a feeding device to penetrate a drill rod with a probe at the bottom into the soil layer, and evaluate the basic physical and mechanical properties of the soil by measuring parameters such as penetration resistance and friction force, such as the deformation modulus of the soil, the allowable bearing capacity of the soil, etc.

[0003] The sounding device is a conical probe with a certain specification. During the test, the probe is connected to the drill rod, and as the test depth increases, the drill rod is continuously lengthened. The operation of lengthening the drill rod of the existing static sounding machine often needs to be carried out manually, and the drill rod is lengthened manually. Although the operation is relatively simple, because the drill rod is heavy, it will make the workers very laborious. Utility Model Content

[0004] In order to improve the structure of the static sounding device in the prior art, so that the manual output can be reduced during the process of lengthening the drill rod and the operation of the worker is more convenient, this application provides a sounding machine for geotechnical engineering investigation.

[0005] A sounding machine for geotechnical engineering investigation provided by this application adopts the following technical solutions:

[0006] A sounding machine for geotechnical engineering investigation includes a base, a mounting frame arranged on the base, a feeding box arranged on the mounting frame, two fixing rods symmetrically arranged on the base, and a sliding seat slidably arranged on the two fixing rods. Two hydraulic cylinders are installed on one side of the mounting frame close to the base, and the telescopic rods of the two hydraulic cylinders are fixedly connected to the sliding seat. A clamping mechanism is arranged on the sliding seat. The base and the mounting frame are slidably and coaxially fitted with a probe rod. The feeding box is provided with a feeding cavity. A number of extension rods are placed side by side in the feeding cavity. A feeding hole coaxial with the probe rod is opened on one side of the bottom surface of the feeding cavity. A feeding mechanism is arranged in the feeding cavity. Docking screw holes are opened above the probe rod and a number of the extension rods. Docking screw heads threadedly matched with the docking screw holes are arranged at the lower ends of the number of extension rods. A clamping and rotating mechanism is arranged on the mounting frame at the position of the probe rod.

[0007] By adopting the above technical solution, when the sounding machine is working, the probe rod is fixed by the clamping mechanism located on the sliding seat. The hydraulic cylinder drives the sliding seat to slide along the length direction of the fixed rod to realize the downward pressure of the probe rod. When the probe rod is not long enough, the extension rod in the feeding cavity will pass through the feeding hole under the action of the feeding mechanism and abut against the probe rod. At this time, the clamping and rotating mechanism will clamp the extension rod and drive the extension rod to rotate and be threadedly connected with the probe rod, so as to realize the lengthening of the probe rod. The whole operation process does not require manual labor at all, avoiding the laborious operation of workers holding the extension rod, and improving the overall intelligent level of the sounding machine.

[0008] Optionally, the clamping mechanism includes a plurality of first cylinders fixedly arranged on the sliding seat along the circumferential direction of the probe rod and a plurality of clamping rods fixedly connected to the telescopic rods of the plurality of first cylinders. One end of each of the plurality of clamping rods close to the probe rod is integrally connected with a clamping plate in an arc structure, and the arc surfaces of the plurality of clamping plates are coaxial with the probe rod.

[0009] By adopting the above technical solution, a plurality of clamping rods jointly clamp the probe rod or the extension rod, so that the probe rod and the sliding seat can be completely fixedly connected, avoiding the axial relative displacement between the sliding seat and the probe rod or the extension rod during the sliding process of the sliding seat, and improving the stability of the equipment operation and the accuracy of the measurement result.

[0010] Optionally, elastic rubber pads are laid on the inner sides of the arc surfaces of the plurality of clamping plates.

[0011] By adopting the above technical solution, the stability of the connection structure between the clamping rod and the probe rod or the extension rod can be improved, and the friction force at the connection position is increased, so as to avoid the axial displacement between the clamping rod and the probe rod during the continuous downward movement of the sliding seat, and play a role in protecting the structure of the outer wall of the probe rod from being damaged.

[0012] Optionally, a plurality of limiting blocks are integrally arranged on the sliding seat along the circumferential direction of the probe rod. The plurality of limiting blocks correspond to the plurality of first cylinders one by one, and the telescopic rods of the plurality of first cylinders all slide through the corresponding plurality of limiting blocks.

[0013] By adopting the above technical solution, the telescopic rods of a plurality of cylinders can be radially protected, avoiding that when the resistance of the land is large, the telescopic rods of the first cylinders are subjected to too large radial pulling force, resulting in damage or bending of the telescopic rods, and improving the integrity of the equipment parts.

[0014] Optionally, the pusher mechanism includes an arc-shaped block slidably disposed on one side of the replenishment chamber away from the replenishment hole along the length direction of the replenishment box, and a second cylinder with a telescopic rod fixedly connected to the arc-shaped block. The telescopic rod of the second cylinder penetrates through the side wall of the replenishment box, and the second cylinder is fixed to the outside of the replenishment box. The arc surface of the arc-shaped block is dimensionally matched with the side wall of the extension rod.

[0015] By adopting the above technical solution, when an extension rod is needed, the telescopic rod of the second cylinder will push the arc-shaped block towards the replenishment hole, and the arc-shaped block will then push the extension rod to the position of the replenishment hole, enabling it to smoothly pass through the replenishment hole under the action of gravity and abut against the probe rod. At the same time, the second cylinder and the arc-shaped block can also squeeze several extension rods in the replenishment chamber, enabling them to be placed side by side in the replenishment chamber.

[0016] Optionally, a slope is integrally provided on the bottom side of the replenishment chamber, and the replenishment hole is opened at the bottom of the slope.

[0017] By adopting the above technical solution, the movement of the extension rod inside the replenishment chamber can be made more convenient, and at the same time, the load on the second cylinder can be reduced, making the operation of the equipment more lightweight and fast.

[0018] Optionally, the clamping and rotating mechanism includes a rotating ring rotatably disposed on the mounting frame, a driving motor fixedly disposed on the mounting frame and belt-drivenly connected to the rotating ring, and several third cylinders rotatably mounted on the rotating ring along the circumferential direction. The inner diameter of the rotating ring is larger than the diameter of the probe rod, and the rotating ring and the probe rod are coaxial. The ends of the telescopic rods of several third cylinders are all fixedly connected with arc-shaped plates, and several arc-shaped plates jointly clamp the probe rod and the extension rod.

[0019] By adopting the above technical solution, the third cylinder and the arc-shaped plate jointly act to clamp the extension rod to ensure that there is no relative radial displacement during the rotation process, enabling the extension rod to be threadedly connected to the probe rod and avoiding manual operation.

[0020] Optionally, a spring is sleeved between the sliding seat and the base on the fixed rod, and the spring is always in a compressed state.

[0021] By adopting the above technical solution, it provides buffering for the sliding seat during the ascending and descending processes, making the operation of the equipment more stable and preventing inaccurate actual measurement results caused by instantaneous impacts on the probe rod and the extension rod.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. By setting the clamping and rotating mechanism and the feeding box, the penetration tester for geotechnical investigation can automatically extend the length of the probe rod during operation, avoiding the operation of workers holding the extension rod and improving the automation degree of the equipment.

[0024] 2. By means of the spring, the equipment runs more smoothly, avoiding the instantaneous force during the insertion of the probe rod into the ground, which may cause deviation in the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the overall structural schematic diagram of a penetration tester for geotechnical engineering according to the present application.

[0026] Figure 2 is the structural schematic diagram of the extension rod of a penetration tester for geotechnical engineering according to the present application.

[0027] Figure 3 is the structural schematic diagram of the clamping structure of a penetration tester for geotechnical engineering according to the present application.

[0028] Figure 4 is the internal structural sectional view of the feeding box of a penetration tester for geotechnical engineering according to the present application.

[0029] Figure 5 is Figure 1 the enlarged view of part A in

[0030] Description of the reference numerals: 1, base; 11, fixed rod; 111, spring; 2, mounting frame; 21, hydraulic cylinder; 3, sliding seat; 31, limiting block; 4, probe rod; 41, docking screw hole; 5, extension rod; 51, docking screw head; 6, clamping mechanism; 61, first cylinder; 62, clamping rod; 63, clamping plate; 631, elastic rubber pad; 7, feeding box; 71, feeding cavity; 72, feeding hole; 73, slope; 8, clamping and rotating mechanism; 81, rotating ring; 82, third cylinder; 83, arc-shaped plate; 84, driving motor; 9, pushing mechanism; 91, second cylinder; 92, arc-shaped block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following is a further detailed description of the present application in conjunction with the attached Figures 1-5 drawings.

[0032] The embodiment of the present application discloses a penetration tester for geotechnical engineering.

[0033] Referring to Figure 1 and Figure 2, A sounding machine for geotechnical engineering investigation, including a base 1 placed on the ground and used to fix the whole equipment, and a mounting frame 2 fixedly installed on the base 1. The mounting frame 2 is of a U-shaped structure, and the same ends of its two vertical rods are fixedly connected to the base 1. On the base 1, at the position between the two vertical rods of the two mounting frames 2, two fixing rods 11 are symmetrically and fixedly arranged. A flat-shaped sliding seat 3 is slidably arranged on the two fixing rods 11 together. At one end of the mounting frame 2 close to the base 1, two hydraulic cylinders 21 are symmetrically and fixedly arranged. The ends of the telescopic rods of the two hydraulic cylinders 21 are both fixedly connected to the sliding seat 3, and are used to drive the sliding seat 3 to slide along the fixing rods 11. Docking screw holes 41 for connecting the extension rod 5 are opened at the top of the probe rod 4 and the upper end of the extension rod 5. A docking screw head 51 that can be threadedly connected to the docking screw hole 41 is integrally arranged at the lower end of the extension rod 5.

[0034] In addition, springs 111 are arranged between the sliding seat 3 and the fixing rods 11. The two springs 111 are respectively movably sleeved on the two fixing rods 11 and are always in a compressed state, so that the equipment runs more smoothly and avoids the influence of instantaneous impact force on the measurement results.

[0035] A clamping mechanism 6 for clamping the probe rod 4 is arranged on the sliding seat 3, so as to facilitate the fixed connection between the sliding seat 3 and the probe rod 4 or the extension rod 5. When the sliding seat 3 slides, it can drive the probe rod 4 into the ground. At one end of the mounting frame 2 far from the base 1, a replenishing material box 7 for placing the extension rod 5 is fixedly arranged, and a clamping and rotating mechanism 8 is installed between the lower end of the replenishing material box 7 and the mounting frame 2. Through holes for the probe rod 4 and the extension rod 5 to slide through are respectively opened on the mounting frame 2, the base 1 and the sliding seat 3.

[0036] Refer to Figure 1 and Figure 3 , Specifically, the clamping mechanism 6 includes a number of first cylinders 61 fixedly installed on the sliding seat 3. The ends of the telescopic rods of the number of first cylinders 61 are all fixedly connected with clamping rods 62, and a clamping plate 63 with an arc-shaped structure is integrally connected to one end of the clamping rod 62 close to the probe rod 4. The arc-shaped surfaces of the number of clamping plates 63 are coaxial with the probe rod 4, and the number of clamping plates 63 jointly enclose a circumference surrounding the probe rod 4. When the equipment works, the number of first cylinders 61 drive the clamping rods 62 and the clamping plates 63 to jointly clamp the probe rod 4 or the extension rod 5, so that the probe rod 4 or the extension rod 5 can move along the axial direction following the sliding seat 3, and the probe rod 4 is inserted into the ground to measure the soil quality.

[0037] In this application, in order to reduce the load of the hydraulic cylinder 21 and thus reduce the energy consumption of the equipment, it is preferably that there are two first cylinders 61, and they are symmetrically arranged on both sides of the probe rod 4 on the sliding seat 3.

[0038] Refer to Figure 3, Further, an elastic rubber pad 631 is laid on the inner side of the arc surface of the clamping plate 63, so as to better protect the side wall of the probe rod 4 while increasing the friction between the clamping plate 63 and the probe rod 4, avoiding axial relative sliding between the two, and improving the stability of the equipment operation.

[0039] Refer to Figure 1 and Figure 3 , Further still, two limiting blocks 31 are symmetrically and fixedly arranged on the sliding seat 3, and the telescopic rods of the two first cylinders 61 respectively slide through the inside of the limiting blocks 31. During the movement of the sliding seat 3, the limiting blocks 31 can provide radial support and limitation for the telescopic rods of the two first cylinders 61 to prevent the telescopic rods of the two first cylinders 61 from being overstressed.

[0040] Refer to Figure 1 and Figure 4 , The feeding box 7 is provided with a feeding cavity 71 whose upper end communicates with the outside of the feeding box 7, and a feeding hole 72 for the extension rod 5 to pass through is vertically penetrated through one end of the bottom side of the feeding cavity 71, and the feeding hole 72 is coaxial with the probe rod 4. A feeding mechanism 9 is arranged on the side wall of the feeding cavity 71 far from the feeding hole 72 to push the extension rod 5 to the position of the feeding hole 72, so that the extension rod 5 can fall out from the position of the feeding hole 72 under the action of gravity and abut against the top end of the probe rod 4.

[0041] Refer to Figure 4 , Further, the feeding mechanism 9 includes a second cylinder 91 fixedly arranged on the side wall of the feeding box 7 and an arc-shaped block 92 slidably arranged at a position on the side wall of the feeding cavity 71 far from the feeding hole 72. The side of the arc-shaped block 92 close to the feeding hole 72 is an arc-shaped structure adapted to the side wall of the extension rod 5. The telescopic rod of the second cylinder 91 extends into the feeding cavity 71 and is fixedly connected to the side of the arc-shaped block 92 far from the feeding hole 72. When it is necessary to lengthen the probe rod 4, the second cylinder 91 can be driven to push the extension rod 5 into the feeding hole 72 and abut against the top of the probe rod 4.

[0042] Preferably, a slope 73 is integrally arranged at the bottom of the feeding cavity 71 in the feeding box 7, and the bottom side of the slope 73 is close to the feeding hole 72, so as to better push the extension rod 5 out of the feeding box 7 and reduce energy consumption.

[0043] Refer to Figure 1 and Figure 5, the clamping and rotating mechanism 8 includes a rotating ring 81 rotatably arranged on the mounting frame 2 and coaxial with the probe rod 4. The inner diameter of the rotating ring 81 is larger than the diameter of the extension rod 5. On the side of the rotating ring 81 away from the mounting frame 2, a number of third cylinders 82 are fixedly arranged along the circumference. The ends of the telescopic rods of the number of third cylinders 82 are all connected with arc-shaped plates 83 for jointly clamping the extension rod 5. A driving motor 84 is fixedly installed on the mounting frame 2. The driving motor 84 is connected to the rotating ring 81 by belt drive, used to drive the extension rod 5 clamped by the rotating ring 81 to rotate, and is threadedly connected to the probe rod 4.

[0044] It should be noted that a friction strip along the axial direction of the arc-shaped plate 83 is integrally arranged on the concave surface of the arc-shaped plate 83, aiming to make the rotating ring 81 and the extension rod 5 rotate synchronously. The arc-shaped plate 83 does not restrict the movement of the extension rod 5 along the axial direction. Since the friction strip is integrally connected to the arc-shaped plate 83, it is not separately marked in the drawings.

[0045] The implementation principle of a sounding machine for geotechnical engineering investigation in an embodiment of the present application is as follows:

[0046] The two first cylinders 61 located on the sliding seat 3 act together. The clamping plates 63 on the two clamping rods 62 jointly clamp the probe rod 4, so that the probe rod 4 is fixedly connected to the sliding seat 3. Then the two hydraulic cylinders 21 push the sliding seat 3 to slide on the two fixed rods 11, and insert the probe rod 4 into the soil. When the probe rod 4 descends to a certain position, the two first cylinders 61 drive the two clamping plates 63 to release the probe rod 4. At this time, the two hydraulic cylinders 21 drive the sliding seat 3 to reset upward, and then repeat the above operations.

[0047] When the length of the probe rod 4 is insufficient, the second cylinder 91 located in the feeding box 7 drives the arc-shaped block 92 to move towards the feeding hole 72, and pushes the extension rod 5 to the position of the feeding hole 72. Then, the extension rod 5 falls out of the feeding hole 72 under the action of gravity and abuts against the top of the probe rod 4. At this time, the third cylinder 82 drives the arc-shaped plate 83 to abut against the side wall of the extension rod 5. The driving motor 84 drives the rotating ring 81 and the extension rod 5 to rotate at this time, and threadedly connects the extension rod 5 and the probe rod 4 together.

[0048] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A probe for geotechnical engineering investigation, comprising a base (1), a mounting frame (2) arranged on the base (1), a feed box (7) arranged on the mounting frame (2), two fixed rods (11) symmetrically arranged on the base (1), and a slide seat (3) slidably arranged on the two fixed rods (11), characterized in that: Two hydraulic cylinders (21) are installed on one side of the mounting frame (2) close to the base (1), and the telescopic rods of the two hydraulic cylinders (21) are fixedly connected to the slide seat (3). The slide seat (3) is provided with a clamping mechanism (6). The base (1) and the mounting frame (2) are slidably matched with a probe rod (4) along the axis. The feeding box (7) is provided with a feeding cavity (71), and a plurality of extension rods (5) are placed side by side in the feeding cavity (71). A feeding hole (72) coaxial with the probe rod (4) is provided on one side of the bottom surface, a pushing mechanism (9) is provided in the feeding cavity (71), docking screw holes (41) are provided on the top of the probe rod (4) and a plurality of the extension rods (5), docking screw heads (51) threadedly matched with the docking screw holes (41) are provided at the lower ends of the plurality of the extension rods (5), and a clamping rotating mechanism (8) is provided on the mounting frame (2) at the position of the probe rod (4).

2. The geotechnical engineering exploration probe according to claim 1, characterized in that: The clamping mechanism (6) comprises a plurality of first cylinders (61) fixedly arranged on the slide seat (3) along the circumference of the probe rod (4) and a plurality of clamping rods (62) fixedly connected to telescopic rods of the plurality of first cylinders (61), and a plurality of clamping rods (62) are integrally connected to a clamping plate (63) with an arc-shaped structure at one end of the plurality of clamping rods (62) close to the probe rod (4), and the arc-shaped surfaces of the plurality of clamping plates (63) are coaxial with the probe rod (4).

3. The geotechnical engineering exploration probe according to claim 2, characterized in that: The inner sides of the arc-shaped surfaces of the plurality of clamping plates (63) are all provided with elastic rubber pads (631).

4. The geotechnical engineering exploration probe according to claim 3, characterized in that: A plurality of limit blocks (31) are integrally arranged on the slide seat (3) along the circumference of the probe rod (4), and the limit blocks (31) correspond one-to-one to the first cylinders (61), and the telescopic rods of the first cylinders (61) all slide through the corresponding limit blocks (31).

5. The geotechnical engineering exploration probe according to claim 4, characterized in that: The pushing mechanism (9) includes an arc block (92) slidably arranged along the length direction of the feeding box (7) on the side of the feeding cavity (71) away from the feeding hole (72), and a second cylinder (91) fixedly connected to the arc block (92) by a telescopic rod, the telescopic rod of the second cylinder (91) passes through the side wall of the feeding box (7), and the second cylinder (91) is fixed to the outside of the feeding box (7), and the arc surface of the arc block (92) matches the size of the side wall of the extension rod (5).

6. The probe for geotechnical engineering investigation according to claim 5, characterized in that: The bottom side of the feeding chamber (71) is integrally provided with a slope (73), and the feeding hole (72) is opened at the bottom of the slope (73).

7. The geotechnical engineering exploration probe according to claim 6, characterized in that: The clamping rotating mechanism (8) comprises a rotating ring (81) rotatably mounted on the mounting frame (2), a driving motor (84) fixedly mounted on the mounting frame (2) and connected to the rotating ring (81) with a transmission, and a plurality of third cylinders (82) rotatably mounted on the rotating ring (81) along a circumferential direction, wherein the inner diameter of the rotating ring (81) is larger than the diameter of the probe rod (4), and the rotating ring (81) and the probe rod (4) are coaxial, and the ends of the telescopic rods of the plurality of third cylinders (82) are fixedly connected to arc plates (83), and the plurality of arc plates (83) jointly clamp the probe rod (4) and the extension rod (5).

8. The probe for geotechnical engineering investigation according to claim 7, characterized in that: A spring (111) is sleeved on the fixing rod (11) between the sliding seat (3) and the base (1), and the spring (111) is always in a compressed state.

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