A soft clay sampling device for dynamic triaxial experiment

Abstract

The present invention relates to the technical field of soft clay equipment, and specifically refers to a soft clay sampling device for dynamic triaxial experiments, which includes a first carrier plate, a second carrier plate fixedly mounted on the first carrier plate, wheel frame assemblies are provided on both sides of the first carrier plate and the second carrier plate, running wheels are provided at both ends of the wheel frame assembly, and running motors for rotating the running wheels are also provided at both ends of the wheel frame assembly, a sampling tube folding assembly is provided on the second carrier plate, multi-angle platforms are provided on both sides of the sampling tube folding assembly, and an electric telescopic sampler is provided under the multi-angle platform. The soft clay sampling device for dynamic triaxial experiments of the present invention has a small size, low manufacturing cost, avoids the risk of manual sampling, and is suitable for laboratory use.

Description

Technical Field

[0001] The invention relates to the technical field of soft clay equipment, in particular to a soft clay sampling device for dynamic triaxial experiments. Background Art

[0002] When conducting a dynamic triaxial test, sampling of soft clay is a key step because it directly affects the accuracy of the test results. The existing technology still uses a method of rotary cutting of soil by a rotary tooth. The method is to manually reach a designated location, cover the bottom of the sampling tube with the rotary tooth, and extend it to the outside. When sampling, the rotary tooth rotary cuts the soil so that the sampling tube extends into the soil to form a columnar soil sample.

[0003] Since the sampling areas are mostly construction sites and soft, unpaved roads, manual sampling presents certain risks and is inefficient. Large soil sampling machines are costly, easily damage fields, and collect too much, making them unsuitable for laboratory use. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a soft clay sampling device for dynamic triaxial experiment, which has small volume, low cost, avoids the risk of manual sampling, and is suitable for laboratory use.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is: a soft clay sampling device for dynamic triaxial experiments, which includes a first carrier plate, a second carrier plate is fixedly installed on the first carrier plate, wheel frame assemblies are provided on both sides of the first carrier plate and the second carrier plate, walking wheels are provided at both ends of the wheel frame assembly, and walking motors for rotating the walking wheels are also provided at both ends of the wheel frame assembly, a sampling tube retracting assembly is provided on the second carrier plate, multi-angle pan-tilts are provided on both sides of the sampling tube retracting assembly, and an electric telescopic sampler is provided under the multi-angle pan-tilt.

[0006] As an improvement, the sampling tube folding assembly includes a strip frame body fixedly mounted on a second carrier plate, with T-shaped through slots at both ends of the strip frame body, two symmetrically installed threaded rods rotatably connected in the two T-shaped through slots, two threaded rods are threadedly connected with T-shaped threaded sleeves that can move left and right in the T-shaped through slots, a first double-end limit shaft is provided on the top of the T-shaped threaded sleeve, a second double-end limit shaft located between the two T-shaped through slots is provided on the strip frame body, and an arc-shaped connecting rod is provided between the two sides of the two first double-end limit shafts and the second double-end limit shafts.

[0007] As an improvement, the arc-shaped connecting rod is provided with an arc-shaped slideway slidably connected to the first double-end limit shaft, and the end of the arc-shaped connecting rod is rotationally connected to the second double-end limit shaft.

[0008] As an improvement, a first rotating shaft is provided at one end of the arc-shaped connecting rod away from the second double-end limiting shaft, a connecting rod is provided between the first double-end limiting shaft and the first rotating shaft, and both ends of the connecting rod are rotationally connected to the first rotating shaft and the first double-end limiting shaft.

[0009] As an improvement, the multi-angle gimbal includes a motor fixing plate fixedly mounted on the two connecting rods on the same side, a first drive motor is provided on the motor fixing plate, a drive shaft of the first drive motor is connected to a first J-shaped connecting rod, an end of the first J-shaped connecting rod away from the first drive motor is rotatably connected to a rotating rod, a first gear is fixedly connected to the rotating rod, both ends of the rotating rod are fixedly connected to an arc-shaped frame, a second drive motor is provided at an end of the first J-shaped connecting rod away from the first drive motor, and a second gear meshing with the first gear is provided on the output shaft of the second drive motor.

[0010] As an improvement, the outer edge of the arc-shaped frame is provided with a toothed edge, the upper and lower sides of the arc-shaped frame are provided with an arc-shaped slide groove, the outer side of the arc-shaped frame is provided with a sliding frame that can slide along the arc-shaped slide groove, the sliding frame is provided with a third drive motor, and the sliding frame is rotatably connected to a third gear that meshes with the toothed edge of the arc-shaped frame, the output shaft of the third drive motor is connected to the third gear, and the bottom of the sliding frame is fixedly connected to a second J-shaped connecting rod, and the second J-shaped connecting rod is detachably connected to an electric telescopic sampler at one end away from the sliding frame, and the electric telescopic sampler is located at the central axis of the arc-shaped frame.

[0011] As an improvement, the first carrier plate includes a plate body, brackets for mounting the second carrier plate are provided at both ends of the plate body, first axle frames are provided on both sides of the plate body, and the wheel frame assembly includes two Y-shaped fork arms located on both sides of the plate body, a connecting shaft rotatably connected to the first axle frame is provided at the middle protrusion of the Y-shaped fork arm, the outer sides of the two ends of the Y-shaped fork arm are rotatably connected to the walking wheel, the inner sides of the two ends of the Y-shaped fork arm are fixedly connected to the walking motor, and the output shaft of the walking motor is connected to the walking wheel.

[0012] As an improvement, two second axis frames distributed front and back are provided at the central position of the plate body, and two third axis frames distributed left and right are provided at the central position of the plate body. The two connecting shafts pass through the first axis frames and are rotationally connected to the third axis frames. Two first bevel gears are provided in the two third axis frames and are respectively fixedly connected to the connecting shafts on both sides. A second rotating shaft is rotationally connected between the two second axis frames, and a second bevel gear is fixedly connected to the second rotating shaft and is meshed with the first bevel gears on both sides.

[0013] After adopting the above structure, the present invention has the following advantages:

[0014] 1. Multi-angle platforms are respectively provided on both sides of the sampling tube folding assembly, and an electric telescopic sampler is provided under the multi-angle platform. Compared with the rotating platform of the prior art, the structure of the multi-angle platform ensures multi-directional adjustment while being more lightweight. In addition, the third drive motor is started, and the third drive motor loosens the clay around the electric telescopic sampler through the cooperation of the third gear and the arc frame, so that it can be pulled out smoothly to prevent tipping;

[0015] 2. The electric telescopic sampler and the sampling tube retracting assembly can be retracted as a whole by providing the sampling tube retracting assembly, and the cooperation between the arc-shaped connecting rod and the first double-ended limit shaft can prevent the electric telescopic sampler from tipping over when being inserted or pulled out of the clay ground;

[0016] 3. By setting up the wheel frame assembly, it can adapt to construction sites and wet and soft unpaved roads, reduce damage to farmland, and prevent damage to the entire device caused by complex surfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a soft clay sampling device for dynamic triaxial testing of the present invention. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the structure of a soft clay sampling device for dynamic triaxial testing of the present invention. Figure 2 .

[0019] Figure 3 The structure diagram of the multi-angle pan head of the soft clay sampling device for dynamic triaxial experiment of the present invention is as follows Figure 1 .

[0020] Figure 4 The present invention is a schematic diagram of the structural decomposition of a multi-angle pan-tilt of a soft clay sampling device for a dynamic triaxial experiment.

[0021] Figure 5 The structure diagram of the multi-angle pan head of the soft clay sampling device for dynamic triaxial experiment of the present invention is as follows Figure 2 .

[0022] Figure 6 The present invention is a schematic structural diagram of a sampling tube retracting assembly of a soft clay sampling device for a dynamic triaxial experiment.

[0023] Figure 7 The present invention is a partial structural exploded view of a sampling tube retracting assembly of a soft clay sampling device for a dynamic triaxial experiment.

[0024] Figure 8 The present invention is a schematic structural diagram of a strip frame of a soft clay sampling device for a dynamic triaxial test.

[0025] Fig. 9 The invention discloses a structural schematic diagram of a wheel frame assembly of a soft clay sampling device for a dynamic triaxial test.

[0026] Fig.10 The present invention is a structural exploded view of a wheel frame assembly of a soft clay sampling device for a dynamic triaxial test.

[0027] Fig.11 The present invention is a schematic diagram of a wheel frame assembly of a soft clay sampling device for a dynamic triaxial test encountering a single-sided raised road surface.

[0028] As shown in the figure: 1. First carrier plate; 101. Plate body; 102. Bracket; 103. First shaft frame; 104. Second shaft frame; 105. Third shaft frame; 2. Wheel frame assembly; 201. Y-shaped fork arm; 202. Connecting shaft; 203. First bevel gear; 204. Second bevel gear; 205. Second rotating shaft; 3. Traveling wheel; 4. Traveling motor; 5. Second carrier plate; 6. Sampling tube folding assembly; 601. Strip frame; 602. T-shaped through slot; 603. Threaded rod; 604. First double-end limit shaft; 605. Second double-end limit shaft; 606, arc-shaped connecting rod; 607, arc-shaped slide; 608, first rotating shaft; 609, connecting rod; 610, T-shaped threaded sleeve; 7, multi-angle pan head; 701, motor fixing plate; 702, first driving motor; 703, first J-shaped connecting rod; 704, arc-shaped frame; 705, second driving motor; 706, second gear; 707, rotating rod; 708, first gear; 709, arc-shaped slide; 710, sliding frame; 712, third driving motor; 713, third gear; 714, second J-shaped connecting rod; 8, electric telescopic sampler. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0030] Combined with Figure 1 , Attachment Fig. 9 , Attachment Fig.10 and attached Fig.11 .

[0031] A soft clay sampling device for a dynamic triaxial experiment, comprising a first carrier plate 1, a second carrier plate 5 is fixedly mounted on the first carrier plate 1, wheel frame assemblies 2 are arranged on both sides of the first carrier plate 1 and the second carrier plate 5, walking wheels 3 are arranged at both ends of the wheel frame assembly 2, and walking motors 4 for rotating the walking wheels 3 are also arranged at both ends of the wheel frame assembly 2, the first carrier plate 1 comprises a plate body 101, brackets 102 for mounting the second carrier plate 5 are arranged at both ends of the plate body 101, first shaft frames 103 are arranged at both sides of the plate body 101, the wheel frame assembly 2 comprises two Y-shaped fork arms 201 located on both sides of the plate body 101, a connecting shaft 202 rotatably connected to the first shaft frame 103 is arranged at the middle protrusion of the Y-shaped fork arm 201, the outer sides of the two ends of the Y-shaped fork arm 201 are rotatably connected to the walking wheel 3, the inner sides of the two ends of the Y-shaped fork arm 201 are fixedly connected to the walking motor 4, and the output shaft of the walking motor 4 is connected to the walking wheel 3;

[0032] Two second axis frames 104 distributed front and back are provided at the central position of the plate body 101, and two third axis frames 105 distributed left and right are provided at the central position of the plate body 101. The two connecting shafts 202 pass through the first axis frame 103 and are rotationally connected to the third axis frames 105. Two first bevel gears 203 fixedly connected to the connecting shafts 202 on both sides are provided in the two third axis frames 105. A second rotating shaft 205 is rotationally connected between the two second axis frames 104, and a second bevel gear 204 meshing with the first bevel gears 203 on both sides is fixedly connected to the second rotating shaft 205.

[0033] The above structure forms a carrier for carrying other devices. Since the soft clay samples for dynamic triaxial test are often taken from construction sites and wet and soft unpaved roads, the terrain is relatively complex and often has ridges. When the device is running, it encounters a single running wheel 3 being padded by a raised road surface. In order to prevent the ridge from hitting the bottom of the first carrier plate 1 or the device on the first carrier plate 1 from being damaged, see the attached Fig.11As shown in the figure, after the walking wheel 3 in the D area is padded by the raised road surface, the Y-shaped fork arm 201 where the walking wheel 3 in the D area is located is relatively deflected from the plate body 101, thereby driving the connecting shaft 202 of the Y-shaped fork arm 201 where the walking wheel 3 in the D area is located to rotate, thereby driving the first bevel gear 203 to rotate, and then driving the second bevel gear 204 to rotate. When the second bevel gear 204 rotates, it drives another first bevel gear 203 to rotate, thereby driving the Y-shaped fork arm 201 where the walking wheel 3 in the D area is located and the plate body 10 1 undergoes a reverse relative deflection, at which time the running wheels 3 in the C area and the running wheels 3 in the B area contact the flat ground, and the running wheels 3 in the A area and the running wheels 3 in the D area are at the same height. At this time, the plate body 101 is lifted as a whole, and when the plate body 101 passes through the raised road surface, the running wheels 3 in the D area fall down. Due to the matching relationship between the first bevel gear 203 and the second bevel gear 204, it takes a certain time interval to fall down. When the running wheels 3 in the B area restructure the raised road surface, the middle position of the plate body 101 has passed through the raised road surface.

[0034] Combined with Figure 2 , Attachment Figure 6 and attached Figure 7 :

[0035] A sampling tube folding assembly 6 is provided on the second carrier plate 5, and the sampling tube folding assembly 6 includes a strip frame 601 fixedly mounted on the second carrier plate 5, T-shaped through slots 602 are provided at both ends of the strip frame 601, two symmetrically mounted threaded rods 603 are rotatably connected in the two T-shaped through slots 602, a motor for rotating the threaded rods 603 is provided between the two T-shaped through slots 602, a T-shaped threaded sleeve 610 which can move left and right in the T-shaped through slots 602 is threadedly connected to the two threaded rods 603, a first double-end limiting shaft 604 is provided on the top of the T-shaped threaded sleeve 610, a second double-end limiting shaft 605 located between the two T-shaped through slots 602 is provided on the strip frame 601, and an arc connecting rod 606 is provided between the two sides of the two first double-end limiting shafts 604 and the second double-end limiting shafts 605;

[0036] The arc connecting rod 606 is provided with an arc slideway 607 slidably connected to the first double-ended limit shaft 604, and the end of the arc connecting rod 606 is rotatably connected to the second double-ended limit shaft 605;

[0037] The arc connecting rod 606 has one end away from the second double-end limiting shaft 605 and is provided with a first rotating shaft 608 . A connecting rod 609 is provided between the first double-end limiting shaft 604 and the first rotating shaft 608 . Both ends of the connecting rod 609 are rotationally connected to the first rotating shaft 608 and the first double-end limiting shaft 604 .

[0038] Through the above structure, a motor for rotating the threaded rod 603 is provided between the two T-shaped through grooves 602. This is the prior art, so it is not described here in detail. When the motor is started and the T-shaped threaded sleeve 610 is driven to move from both ends toward the direction close to the second double-end limiting shaft 605, the first double-end limiting shaft 604 drives the arc-shaped connecting rod 606 to rotate around the second double-end limiting shaft 605 through the arc-shaped slideway 607, so that the connecting rods 609 located at both ends of the strip frame 601 are brought closer to each other, and then the device on the connecting rod 609 is retracted. Moreover, compared with the prior art that only uses the connecting rod and the screw sleeve for retraction, the cooperation between the arc-shaped connecting rod 606 and the first double-end limiting shaft 604 can prevent the heavy objects above the connecting rod 609 from being affected by gravity and being displaced.

[0039] Combined with Figure 2 , Attachment Figure 3 , Attachment Figure 4 and attached Figure 5 :

[0040] Multi-angle platforms 7 are respectively provided on both sides of the sampling tube folding component 6, and an electric telescopic sampler 8 is provided below the multi-angle platform 7. The multi-angle platform 7 includes a motor fixing plate 701 fixedly mounted on the two connecting rods 609 on the same side, and a first driving motor 702 is provided on the motor fixing plate 701. The driving shaft of the first driving motor 702 is connected to a first J-shaped connecting rod 703, and the end of the first J-shaped connecting rod 703 away from the first driving motor 702 is rotatably connected to a rotating rod 707, and a first gear 708 is fixedly connected to the rotating rod 707. Both ends of the rotating rod 707 are fixedly connected to an arc frame 704, and a second driving motor 705 is provided at one end of the first J-shaped connecting rod 703 away from the first driving motor 702, and a second gear 706 meshing with the first gear 708 is provided on the output shaft of the second driving motor 705;

[0041] The outer edge of the arc-shaped frame 704 is provided with a toothed edge, and the upper and lower sides of the arc-shaped frame 704 are provided with an arc-shaped slide groove 709. The outer side of the arc-shaped frame 704 is provided with a sliding frame 710 that can slide along the arc-shaped slide groove 709. The sliding frame 710 is provided with a third drive motor 712. The sliding frame 710 is rotatably connected to a third gear 713 that meshes with the toothed edge of the arc-shaped frame 704. The output shaft of the third drive motor 712 is connected to the third gear 713. The bottom of the sliding frame 710 is fixedly connected with a second J-shaped connecting rod 714. The second J-shaped connecting rod 714 is detachably connected to the electric telescopic sampler 8 at one end away from the sliding frame 710. The electric telescopic sampler 8 is located at the central axis of the arc-shaped frame 704.

[0042] Through the above structure, see Appendix Figure 5, start the first drive motor 702, the first drive motor 702 drives the arc frame 704 to rotate around the X-axis as a whole through the first J-type connecting rod 703 and the rotating rod 707, start the second drive motor 705, the second drive motor 705 drives the arc frame 704 to rotate around the Y-axis as a whole through the second gear 706, the first gear 708 and the rotating rod 707, the electric telescopic sampler 8 is a prior art, so it is not described here. When the electric telescopic sampler 8 is collected, pressure is applied to the clay road surface, and it is difficult to lift it after collection, which may easily cause the vehicle to tip over as a whole. At this time, start the third drive motor 712, the third drive motor 712 cooperates with the arc frame 704 through the third gear 713, so that the sliding frame 710 and the second J-type connecting rod 714 rotate around the Z-axis along the arc slot 709 as a whole, and the clay around the electric telescopic sampler 8 can be loosened, so that it can be pulled out smoothly.

[0043] In the specific implementation of the present invention, the device is first moved to a specified position by remote control technology. The remote control technology is a prior art, so it is not described in detail here. During the driving process, when a single walking wheel 3 is raised by a raised road surface, in order to prevent the raised road surface from hitting the bottom of the first carrier plate 1 or damaging the device located on the first carrier plate 1, see the attached Fig.11 As shown in the figure, after the walking wheel 3 in the D area is padded by the raised road surface, the Y-shaped fork arm 201 where the walking wheel 3 in the D area is located is relatively deflected from the plate body 101, thereby driving the connecting shaft 202 of the Y-shaped fork arm 201 where the walking wheel 3 in the D area is located to rotate, thereby driving the first bevel gear 203 to rotate, and then driving the second bevel gear 204 to rotate. When the second bevel gear 204 rotates, it drives another first bevel gear 203 to rotate, thereby driving the Y-shaped fork arm 201 where the walking wheel 3 in the D area is located and the plate body 101 undergoes a reverse relative deflection, at which time the running wheels 3 in the C area and the running wheels 3 in the B area contact the flat ground, and the running wheels 3 in the A area and the running wheels 3 in the D area are at the same height, and the plate body 101 is lifted as a whole, and when the plate body 101 passes through the raised road surface, the running wheels 3 in the D area fall down, and it takes time to fall down due to the matching relationship between the first bevel gear 203 and the second bevel gear 204. When the running wheels 3 in the B area reconstruct the raised road surface, the middle position of the plate body 101 has passed through the raised road surface;

[0044] After arriving at the designated location, the sampling direction of the electric telescopic sampler 8 needs to be adjusted, see the attached Figure 5, start the first drive motor 702, the first drive motor 702 drives the arc frame 704 to rotate around the X axis as a whole through the first J-shaped connecting rod 703 and the rotating rod 707, start the second drive motor 705, the second drive motor 705 drives the arc frame 704 to rotate around the Y axis as a whole through the second gear 706, the first gear 708 and the rotating rod 707, the electric telescopic sampler 8 is a prior art, so it is not described here, when the electric telescopic sampler 8 is collected, pressure is applied to the clay road surface, and it is lifted after collection. It is relatively difficult and may cause the whole carrier to tip over. At this time, the third drive motor 712 is started. The third drive motor 712 cooperates with the arc frame 704 through the third gear 713 to make the sliding frame 710 and the second J-shaped connecting rod 714 rotate around the Z axis along the arc slide 709 as a whole. At this time, the clay around the electric telescopic sampler 8 can be loosened, so that it can be pulled out smoothly. During the insertion and pulling out process of the soil, the cooperation between the arc connecting rod 606 and the first double-end limit shaft 604 can prevent the connecting rod 609 from being offset.

[0045] After sampling, the motor for rotating the threaded rod 603 between the two T-shaped through slots 602 is started, and the T-shaped threaded sleeve 610 is driven to move from both ends toward the direction close to the second double-end limiting shaft 605. The first double-end limiting shaft 604 drives the arc-shaped connecting rod 606 to rotate around the second double-end limiting shaft 605 through the arc-shaped slide 607, so that the connecting rods 609 located at both ends of the strip frame 601 are brought closer to each other, and then the device on the connecting rod 609 is folded to complete the sampling.

[0046] The present invention and its implementation methods are described above, and such description is not restrictive, and the actual structure is not limited thereto. In general, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can creatively design a structure and implementation method similar to the technical solution, which should fall within the protection scope of the present invention.

Claims

1. A soft clay sampling device for a dynamic triaxial test, comprising a first carrier plate (1), a second carrier plate (5) fixedly mounted on the first carrier plate (1), wheel frame assemblies (2) being provided on both sides of the first carrier plate (1) and the second carrier plate (5), running wheels (3) being provided at both ends of the wheel frame assembly (2), and running motors (4) for rotating the running wheels (3) being provided at both ends of the wheel frame assembly (2), characterized in that: A sampling tube retracting assembly (6) is provided on the second carrier plate (5), multi-angle platforms (7) are provided on both sides of the sampling tube retracting assembly (6), and an electric telescopic sampler (8) is provided below the multi-angle platform (7); The sampling tube folding assembly (6) comprises a strip frame (601) fixedly mounted on the second carrier plate (5), two ends of the strip frame (601) are provided with T-shaped through slots (602), two symmetrically mounted threaded rods (603) are rotatably connected in the two T-shaped through slots (602), the two threaded rods (603) are threadedly connected with T-shaped threaded sleeves (610) that can move left and right in the T-shaped through slots (602), a first double-end limiting shaft (604) is provided at the top of the T-shaped threaded sleeve (610), a second double-end limiting shaft (605) located between the two T-shaped through slots (602) is provided on the strip frame (601), and arc-shaped connecting rods (606) are provided between the two sides of the two first double-end limiting shafts (604) and the second double-end limiting shafts (605); A first rotating shaft (608) is provided at one end of the arc-shaped connecting rod (606) away from the second double-end limiting shaft (605), a connecting rod (609) is provided between the first double-end limiting shaft (604) and the first rotating shaft (608), and both ends of the connecting rod (609) are rotatably connected to the first rotating shaft (608) and the first double-end limiting shaft (604); The multi-angle pan / tilt platform (7) comprises a motor fixing plate (701) fixedly mounted on two connecting rods (609) on the same side; a first driving motor (702) is provided on the motor fixing plate (701); a driving shaft of the first driving motor (702) is connected to a first J-shaped connecting rod (703); an end of the first J-shaped connecting rod (703) away from the first driving motor (702) is rotatably connected to a rotating rod (707); a first gear (708) is fixedly connected to the rotating rod (707); both ends of the rotating rod (707) are fixedly connected to an arc-shaped frame (704); a second driving motor (705) is provided on an end of the first J-shaped connecting rod (703) away from the first driving motor (702); and a second gear (706) meshing with the first gear (708) is provided on the output shaft of the second driving motor (705); The outer edge of the arc-shaped frame (704) is provided with a toothed edge, and the upper and lower sides of the arc-shaped frame (704) are provided with an arc-shaped slide groove (709). The outer side of the arc-shaped frame (704) is provided with a sliding frame (710) that can slide along the arc-shaped slide groove (709), and the sliding frame (710) is provided with a third driving motor (712). The sliding frame (710) is rotatably connected with a third gear (713) that meshes with the toothed edge of the arc-shaped frame (704), and the output shaft of the third driving motor (712) is connected to the third gear (713). The bottom of the sliding frame (710) is fixedly connected with a second J-shaped connecting rod (714), and the end of the second J-shaped connecting rod (714) away from the sliding frame (710) is detachably connected to the electric telescopic sampler (8), and the electric telescopic sampler (8) is located at the central axis of the arc-shaped frame (704).

2. The soft clay sampling device for dynamic triaxial test according to claim 1, characterized in that: The arc-shaped connecting rod (606) is provided with an arc-shaped slideway (607) slidably connected to the first double-end limiting shaft (604), and the end of the arc-shaped connecting rod (606) is rotationally connected to the second double-end limiting shaft (605).

3. The soft clay sampling device for dynamic triaxial test according to claim 1, characterized in that: The first carrier plate (1) comprises a plate body (101), brackets (102) for mounting a second carrier plate (5) are provided at both ends of the plate body (101), first shaft frames (103) are provided at both sides of the plate body (101), the wheel frame assembly (2) comprises two Y-shaped fork arms (201) located at both sides of the plate body (101), a connecting shaft (202) rotatably connected to the first shaft frame (103) is provided at a middle protrusion of the Y-shaped fork arm (201), the outer sides of the two ends of the Y-shaped fork arm (201) are rotatably connected to the walking wheel (3), the inner sides of the two ends of the Y-shaped fork arm (201) are fixedly connected to the walking motor (4), and the output shaft of the walking motor (4) is connected to the walking wheel (3).

4. The soft clay sampling device for dynamic triaxial test according to claim 3, characterized in that: Two second shaft frames (104) distributed front and back are provided at the central position of the plate body (101); two third shaft frames (105) distributed left and right are provided at the central position of the plate body (101); the two connecting shafts (202) pass through the first shaft frame (103) and are rotationally connected to the third shaft frames (105); two first bevel gears (203) are provided in the two third shaft frames (105) and are respectively fixedly connected to the connecting shafts (202) on both sides; a second rotating shaft (205) is rotationally connected between the two second shaft frames (104); and a second bevel gear (204) meshingly connected to the first bevel gears (203) on both sides is fixedly connected to the second rotating shaft (205).

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