Sampling device for testing mechanical properties of rock-soil body

Abstract

The utility model relates to the technical field of sampling equipment, and discloses a rock-soil body mechanical property test sampling device which comprises a base, a top plate, a lifting plate and a sampling barrel, and a sampling mechanism and an intercepting mechanism are arranged in the sampling barrel. A second motor is started to enable a second gear to drive a rotating ring to rotate through an outer tooth block, and when the rotating ring rotates, a plurality of first gears are driven to rotate through a plurality of inner tooth blocks, so that a plurality of arc-shaped baffles rotate clockwise by taking a rotating rod as an axis, and a sampling opening is in an open state; after the sampling is finished, a second motor is started again to enable a second gear to rotate reversely, so that an arc-shaped baffle plate rotates anticlockwise by taking a rotating rod as an axis to be reset; therefore, the plurality of arc-shaped baffles can be closed, the sampling opening can be blocked, soil in the sampling chamber can be intercepted, and the situation that the sampling integrity is affected due to falling of the soil collected in the sampling chamber is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to sampling equipment technical field, concretely is a kind of rock-soil mass mechanical property test sampling device. BACKGROUND

[0002] Rock-soil mass mechanics is the discipline of studying the physical and mechanical properties of soil and rock and its application in underground engineering, mainly studies the mechanical properties of soil and rock strength, deformation, permeability, and the stability and deformation law of underground engineering such as tunnel, foundation pit, basement, subway under the influence of geological conditions, rock-soil mass mechanical property test experiment needs to be collected from underground representative soil or stone sample, it is processed and prepared into required sample in experiment, mechanical property test is carried out on the sample, to evaluate the mechanics of rock-soil mass.

[0003] Chinese patent provides a kind of rock-soil mass mechanical property test sampling device, publication number is CN118464510A, including base and top plate, the opposite face of base and top plate is fixedly connected with support rod, the surface of support rod is slidably connected with sampling assembly, the sampling assembly includes sampling cylinder, the inner wall of sampling cylinder is provided with the earth plate compatible with sampling cylinder, the lower surface of top plate is fixedly connected with extrusion rod, the extrusion rod can push earth plate and move downward and extrude soil sample from sampling cylinder.

[0004] The device has the effect of conveniently taking out the sample, but after the sampling cylinder is inserted into the soil for sampling, the sampling port of the sampling cylinder is not plugged, so that the soil will fall under the action of gravity when the sampling cylinder is pulled out, thereby affecting the integrity of soil sampling, therefore, a rock-soil mass mechanical property test sampling device needs to be provided. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of rock-soil mass mechanical property test sampling device to solve the problems raised in the above background technology.

[0006] In order to achieve the above object, the utility model provides following technical scheme: a kind of geotechnical mass mechanical property test sampling device, including base, top plate, lifting plate and sampling cylinder, sampling mechanism and intercept mechanism are arranged in the sampling cylinder;The intercept mechanism includes cavity and sampling chamber opened in the sampling cylinder, the bottom of the sampling cylinder is equipped with sampling port that is communicated with cavity and sampling chamber, the middle end in the cavity is fixedly provided with fixed ring, and arc baffle is arranged below the fixed ring;Rotary rod is fixedly arranged on the arc baffle, first gear is fixedly arranged on the rotary rod, rotary ring is rotatably arranged on the fixed ring, inner tooth block that is meshed connection with first gear is fixedly arranged in the rotary ring, second motor is arranged above the fixed ring, and the second motor is fixedly arranged in cavity, second gear is fixedly arranged on the output shaft bottom of the second motor, outer tooth block is fixedly arranged on the outside of rotary ring, and the second gear is meshed connection with outer tooth block.

[0007] Preferably, the arc baffle is provided with a plurality of arc baffles, and the plurality of arc baffles are arranged in a ring array with the axis of the fixed ring as the base point.

[0008] Preferably, when the arc baffle rotates clockwise around the rotary rod, the channel between the sampling port and the sampling chamber is in an open state, and when the arc baffle rotates counterclockwise around the rotary rod, the channel between the sampling port and the sampling chamber is in a closed state.

[0009] Preferably, the sampling mechanism includes an inner tooth ring fixedly arranged on the sampling cylinder, the top of the inner tooth ring is rotatably connected to the bottom of the lifting plate, a first motor is fixedly arranged on the lifting plate, and the output shaft of the first motor is rotatably connected to the lifting plate and fixedly connected to a sun gear.

[0010] Preferably, a plurality of rotary rods are rotatably arranged on the bottom of the lifting plate, a planetary gear is fixedly arranged on the plurality of rotary rods and disposed between the sun gear and the inner tooth ring, and the planetary gear is meshed with the sun gear and the inner tooth ring.

[0011] Preferably, a drill bit is fixedly arranged on the bottom of the sampling cylinder, a limiting rod is fixedly arranged between the base and the top plate, the limiting rod is slidably connected to the lifting plate, a hydraulic cylinder is fixedly arranged on the top plate, and the output rod of the hydraulic cylinder is slidably connected to the top plate and fixedly connected to the lifting plate.

[0012] Preferably, a sampling hole is formed in the base, and a moving wheel is fixedly arranged on the bottom of the base.

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

[0014] 1) the rock-soil body mechanical property test sampling device, through the starting of the second motor, the second gear drives the rotating ring to rotate through the outer tooth block, when the rotating ring rotates, the plurality of first gears are driven to rotate through the plurality of inner tooth blocks, the rotating rod is driven to rotate by the first gear, so that the plurality of arc-shaped baffles rotate clockwise around the rotating rod as the axis, so that the sampling port is in an open state, the sampling cylinder can reach the specified depth in the soil and start sampling, after sampling is completed, the second motor is started again to make the second gear rotate reversely, so that the arc-shaped baffles rotate counterclockwise around the rotating rod as the axis and reset, so that the plurality of arc-shaped baffles can close and block the sampling port and intercept the soil in the sampling chamber, preventing the soil collected in the sampling chamber from falling and affecting the sampling integrity.

[0015] 2) the rock-soil body mechanical property test sampling device, through the starting of the first motor, the sun gear rotates, the sun gear drives the planetary gear meshing therewith to rotate, the planetary gear can drive the inner tooth ring to rotate when rotating, the inner tooth ring drives the sampling cylinder to rotate, then the hydraulic cylinder is started to drive the sampling cylinder to move downward under the guidance of the limiting rod, the sampling cylinder passes through the sampling hole and drills into the soil through the drill sheet, so that the soil at different depths of the same sampling point can be sampled layer by layer according to the need, and the sampling efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the rock-soil body mechanical property test sampling device in the embodiment of the utility model;

[0017] Figure 2 It is a three-dimensional structure schematic view of the sampling mechanism in the embodiment of the utility model;

[0018] Figure 3 It is a three-dimensional structure schematic view of the sampling mechanism in the embodiment of the utility model; Figure 2 It is a structure enlarged view of A in the embodiment of the utility model;

[0019] Figure 4 It is a sectional structure schematic view of the sampling cylinder in the embodiment of the utility model;

[0020] Figure 5 It is a three-dimensional structure schematic view of the intercepting mechanism in the embodiment of the utility model;

[0021] Figure 6 It is a structure schematic view of the sampling port in the embodiment of the utility model.

[0022] In the figure: 1, base; 2, top plate; 3, lifting plate; 4, sampling cylinder; 5, drill bit; 6, sampling mechanism; 601, inner tooth ring; 602, first motor; 603, sun gear; 604, rotating rod; 605, planetary gear; 7, intercepting mechanism; 701, cavity; 702, sampling chamber; 703, sampling port; 704, fixed ring; 705, rotating rod; 706, arc baffle; 707, first gear; 708, rotating ring; 709, inner tooth block; 710, outer tooth block; 711, second motor; 712, second gear; 8, hydraulic cylinder; 9, limiting rod; 10, sampling hole; 11, moving wheel. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Embodiment one

[0025] In combination Figures 1-6 A kind of geotechnical mass mechanical property test sampling device, including base 1, top plate 2, lifting plate 3 and sampling cylinder 4, the bottom of sampling cylinder 4 is fixedly provided with drill bit 5, limiting rod 9 is fixedly arranged between base 1 and top plate 2, limiting rod 9 slidingly penetrates lifting plate 3, hydraulic cylinder 8 is fixedly arranged on top plate 2, the output rod of hydraulic cylinder 8 slidingly penetrates top plate 2 and is fixedly connected with lifting plate 3, sampling hole 10 is opened in base 1, moving wheel 11 is fixedly arranged on the bottom of base 1, sampling mechanism 6 and intercepting mechanism 7 are arranged in sampling cylinder 4.

[0026] Referring to Figure 2 And Figure 3 Further, sampling mechanism 6 includes inner tooth ring 601 fixedly arranged on sampling cylinder 4, the top of inner tooth ring 601 is rotatably connected with the bottom of lifting plate 3, first motor 602 is fixedly arranged on lifting plate 3, the output shaft of first motor 602 rotatably penetrates lifting plate 3 and is fixedly connected with sun gear 603, a plurality of rotating rods 604 are rotatably arranged on the bottom of lifting plate 3, planetary gear 605 is fixedly sleeved on a plurality of rotating rods 604 and is arranged between sun gear 603 and inner tooth ring 601, planetary gear 605 is rotatably connected with sun gear 603 and inner tooth ring 601.

[0027] Specifically, by starting the first motor 602 to rotate the sun gear 603, the sun gear 603 drives the planetary gear 605 engaged therewith to rotate, and the planetary gear 605 can drive the inner tooth ring 601 to rotate when rotating, the inner tooth ring 601 drives the sampling cylinder 4 to rotate, and then the hydraulic cylinder 8 is started to drive the sampling cylinder 4 to move downward under the guidance of the limiting rod 9, the sampling cylinder 4 passes through the sampling hole 10 and drills into the soil through the drill bit 5, so as to facilitate stratified sampling of soil at different depths of the same sampling point according to needs, and improve the sampling efficiency.

[0028] Referring to Figures 4-6 Further, the intercepting mechanism 7 comprises a cavity 701 and a sampling chamber 702 formed in the sampling cylinder 4, a sampling port 703 is formed in the bottom of the sampling cylinder 4 and communicates with the cavity 701 and the sampling chamber 702, a fixed ring 704 is fixedly arranged at the middle end of the cavity 701, and an arc-shaped baffle 706 is arranged below the fixed ring 704; the arc-shaped baffle 706 is fixedly provided with a rotating rod 705, the rotating rod 705 is fixedly provided with a first gear 707, the fixed ring 704 is rotatably provided with a rotating ring 708, the rotating ring 708 is fixedly provided with an inner tooth block 709 engaged with the first gear 707, and a second motor 711 is arranged above the fixed ring 704 and fixedly arranged in the cavity 701; a second gear 712 is fixedly arranged at the bottom of the output shaft of the second motor 711, an outer tooth block 710 is fixedly arranged on the outer side of the rotating ring 708, the second gear 712 is engaged with the outer tooth block 710, and a plurality of arc-shaped baffles 706 are arranged in a ring array with the axis of the fixed ring 704 as the base point; the number of the inner tooth blocks 709 in the rotating ring 708 is the same as that of the arc-shaped baffles 706, and when the arc-shaped baffles 706 rotate clockwise with the rotating rod 705 as the axis, the passage between the sampling port 703 and the sampling chamber 702 is in an open state, and when the arc-shaped baffles 706 rotate counterclockwise with the rotating rod 705 as the axis, the passage between the sampling port 703 and the sampling chamber 702 is in a closed state.

[0029] Specifically, by starting the second motor 711 to drive the rotating ring 708 to rotate through the outer tooth block 710, the rotating ring 708 drives the plurality of first gears 707 to rotate through the plurality of inner tooth blocks 709 when rotating, and the first gears 707 drive the rotating rod 705 to rotate, so that the plurality of arc-shaped baffles 706 rotate clockwise with the rotating rod 705 as the axis, so as to make the sampling port 703 in an open state, thereby facilitating sampling after the sampling cylinder 4 reaches the specified depth in the soil, and re-starting the second motor 711 to make the second gear 712 rotate reversely, so as to make the arc-shaped baffles 706 rotate counterclockwise with the rotating rod 705 as the axis to reset, thereby making the plurality of arc-shaped baffles 706 reseal the sampling port 703, so as to prevent the collected soil in the sampling chamber 702 from falling off and affecting the sampling integrity.

[0030] In actual operation, the device is moved to the sampling position by the moving wheel 11, then the first motor 602 is started to rotate the sun gear 603, the sun gear 603 drives the planetary gear 605 engaged therewith to rotate, the planetary gear 605 can drive the inner tooth ring 601 to rotate when rotating, the inner tooth ring 601 drives the sampling cylinder 4 to rotate, then the hydraulic cylinder 8 is started to drive the sampling cylinder 4 to move downward under the guidance of the limiting rod 9, the sampling cylinder 4 penetrates through the sampling hole 10 and drills into the soil through the drill bit 5, after the sampling cylinder 4 drills into the soil to the specified depth, the second motor 711 is started to drive the second gear 712 to rotate the rotating ring 708 through the outer tooth block 710, the rotating ring 708 drives the plurality of first gears 707 to rotate through the plurality of inner tooth blocks 709 when rotating, the first gears 707 drive the rotating rod 705 to rotate, so that the plurality of arc-shaped baffles 706 rotate clockwise around the rotating rod 705 as the axis, so that the sampling port 703 is in an open state, then the hydraulic cylinder 8 and the first motor 602 are started again to drive the sampling cylinder 4 to drill downward to a certain distance, so that the soil at the depth or below can enter the sampling chamber 702 through the sampling port 703 for storage, realizing multi-layer sampling of the soil, after sampling is completed, the second motor 711 is started again to drive the second gear 712 to rotate reversely, so that the arc-shaped baffles 706 rotate counterclockwise around the rotating rod 705 as the axis to reset, so that the plurality of arc-shaped baffles 706 can reseal the sampling port 703, finally the hydraulic cylinder 8 is controlled to pull out the sampling cylinder 4 from the soil, the second motor 711 is started again to open the sampling port 703, the soil collected in the sampling chamber 702 is discharged through the sampling port 703, so that the sampling of the soil is completed, finally the sampled soil is tested.

[0031] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A sampling device for testing the mechanical properties of soil and rock, comprising a base (1), a top plate (2), a lifting plate (3), and a sampling cylinder (4), characterized in that: The sampling tube (4) is equipped with a sampling mechanism (6) and an interception mechanism (7); The interception mechanism (7) includes a cavity (701) and a sampling chamber (702) opened inside the sampling tube (4). The bottom of the sampling tube (4) is provided with a sampling port (703) that communicates with the cavity (701) and the sampling chamber (702). A fixing ring (704) is fixedly provided in the middle of the cavity (701). An arc-shaped baffle (706) is provided below the fixing ring (704). A rotating rod (705) is fixedly mounted on the arc-shaped baffle (706), a first gear (707) is fixedly mounted on the rotating rod (705), a rotating ring (708) is rotatably mounted on the fixed ring (704), an inner tooth block (709) is fixedly mounted inside the rotating ring (708) and meshes with the first gear (707), a second motor (711) is mounted above the fixed ring (704), the second motor (711) is fixedly mounted inside the cavity (701), a second gear (712) is fixedly mounted at the bottom of the output shaft of the second motor (711), an outer tooth block (710) is fixedly mounted on the outside of the rotating ring (708), and the second gear (712) meshes with the outer tooth block (710).

2. The sampling device for testing the mechanical properties of soil and rock according to claim 1, characterized in that: Multiple arc-shaped baffles (706) are provided, and the multiple arc-shaped baffles (706) are arranged in a ring array with the axis of the fixed ring (704) as the base point. The number of internal tooth blocks (709) in the rotating ring (708) is the same as that of the arc-shaped baffles (706).

3. The sampling device for testing the mechanical properties of soil and rock according to claim 2, characterized in that: When the arc-shaped baffle (706) rotates clockwise around the rotating rod (705), the channel between the sampling port (703) and the sampling chamber (702) is open. When the arc-shaped baffle (706) rotates counterclockwise around the rotating rod (705), the channel between the sampling port (703) and the sampling chamber (702) is closed.

4. The sampling device for testing the mechanical properties of soil and rock according to claim 1, characterized in that: The sampling mechanism (6) includes an internal gear ring (601) fixedly installed on the sampling cylinder (4). The top of the internal gear ring (601) is rotatably connected to the bottom of the lifting plate (3). A first motor (602) is fixedly installed on the lifting plate (3). The output shaft of the first motor (602) rotatably passes through the lifting plate (3) and is fixedly connected to a sun gear (603).

5. The sampling device for testing the mechanical properties of soil and rock according to claim 4, characterized in that: The bottom of the lifting plate (3) is rotatably provided with multiple rotating rods (604), and a planetary gear (605) is fixedly sleeved on the multiple rotating rods (604) between the sun gear (603) and the internal gear ring (601). The planetary gear (605) meshes with the sun gear (603) and the internal gear ring (601).

6. The sampling device for testing the mechanical properties of soil and rock according to claim 1, characterized in that: A drill bit (5) is fixedly installed at the bottom of the sampling tube (4). A limit rod (9) is fixedly installed between the base (1) and the top plate (2). The limit rod (9) slides through the lifting plate (3). A hydraulic cylinder (8) is fixedly installed on the top plate (2). The output rod of the hydraulic cylinder (8) slides through the top plate (2) and is fixedly connected to the lifting plate (3).

7. A sampling device for testing the mechanical properties of soil and rock according to claim 6, characterized in that: The base (1) is provided with a sampling hole (10), and the bottom of the base (1) is fixedly provided with a moving wheel (11).

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