CN212844440U

CN212844440U - Sampling device is used in ground reconnaissance

Info

Publication number: CN212844440U
Application number: CN202021507673.3U
Authority: CN
Inventors: 黄治云
Original assignee: Chongqing Vocational Institute of Engineering
Current assignee: Chongqing Vocational Institute of Engineering
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-03-30
Anticipated expiration: 2030-07-27

Abstract

The utility model provides a sampling device for geotechnical investigation, which belongs to the technical field of geotechnical engineering and comprises a bracket, a first driving device, two groups of crushing devices and a sampling device; the bracket comprises a bottom plate, a middle plate and a top plate; the driving device is arranged at the top of the top plate and drives the movable plate to move up and down; the sampling devices respectively comprise two sampling rods fixedly arranged at the bottom of the movable plate; the lower parts of the two sampling rods are respectively provided with a cylinder groove and a sampling groove; the two sampling rods are fixedly provided with sampling pipes between the corresponding positions of the cylinder groove and the sampling groove, and one ends of the sampling pipes close to the sampling groove are radially provided with sample channels; the air cylinder groove pushes the soil layer sample into the sampling groove through the air cylinder; two sets of breaker sets up respectively at the tip of sampling rod, and every breaker of group all includes the pivot, sets up at the epaxial helical blade of pivot and drive pivot pivoted second drive arrangement. The device can acquire soil layer samples of different depths.

Description

Sampling device is used in ground reconnaissance

Technical Field

The utility model relates to a geotechnical engineering technical field, concretely relates to sampling device is used in geotechnical investigation.

Background

The main purpose of geotechnical investigation is to obtain geological conditions, and provide a geological investigation structure and various geotechnical engineering parameters for design and construction, and an important content of geotechnical engineering investigation during undisturbed soil sampling. With the increasing engineering technology level, the requirement of the geotechnical investigation quality during engineering construction is gradually increased, and physical and mechanical parameter tests need to be carried out on soil bodies with different depths. The quality of the sample can affect the determination of mechanical parameters of the rock and soil, which in turn can affect the safety and cost of the project, thus requiring a reasonable sampling device.

The sampling device at the present stage cannot simultaneously obtain soil layer samples with different depths and cannot obtain deeper samples; meanwhile, the sample can be mixed with the upper layer sample during sampling, and the quality of the sample is affected.

Therefore, the utility model provides a sampling device is used in ground reconnaissance.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims to provide a sampling device is used in ground reconnaissance. The device can acquire soil layer samples of different depths.

In order to achieve the above purpose, the utility model provides the following technical scheme.

A sampling device for geotechnical investigation comprises a bracket, a first driving device, two groups of crushing devices and a sampling device;

the bracket comprises a bottom plate, a middle plate and a top plate; the middle plate is erected above the bottom plate through support rods arranged on two sides of the top of the bottom plate, and the top plate is erected above the middle plate through movable rods arranged on two sides of the top of the middle plate; a movable plate is arranged between the two movable rods, and the driving device is arranged at the top of the top plate and drives the movable plate to move up and down;

the sampling device comprises two sampling rods fixedly arranged at the bottom of the movable plate; the middle plate and the bottom plate are both provided with oval through grooves matched with the two sampling rods; the lower parts of the two sampling rods are respectively provided with at least one cylinder groove and a sampling groove; a sampling pipe communicated with the two sampling rods is arranged between the air cylinder groove and the sampling groove, and a sample channel is radially arranged at one end of the sampling pipe close to the sampling groove; an air cylinder is arranged in the air cylinder groove, the air cylinder is fixedly arranged in the air cylinder groove and is far away from one side of the sampling groove, and the air cylinder pushes a soil layer sample in the sampling pipe into the sampling groove;

two sets of breaker sets up respectively two the bottom of sampling pole, every group breaker all includes the pivot, sets up epaxial helical blade and drive pivot pivoted second drive arrangement is changeed.

Preferably, the push rod of cylinder passes the sampling groove stretches into the sampling pipe, the push rod end fixing be provided with sampling pipe complex push pedal, the fixed kicking block that is provided with on the push pedal.

Preferably, a sampling box with an upper end opening is fixed on one side of the sampling groove close to the cylinder groove through a bolt, a through hole matched with the sampling pipe is formed in one side of the sampling box, a spring is fixedly arranged on the other side of the sampling box, a baffle is fixedly arranged at the end of the spring and matched with the through hole, and the area of the baffle is larger than that of the ejector block.

Preferably, the notches of the cylinder groove and the sampling groove are hinged with movable doors.

Preferably, the first driving device comprises a first motor fixedly arranged on the top plate, and the two movable rods are respectively a lead screw and a polished rod; an output shaft of the first motor penetrates through the top plate to be in transmission connection with the lead screw, and the lower end of the lead screw is in rotary connection with the middle plate; the movable plate is in threaded fit with the lead screw, and the movable plate is in sliding fit with the polished rod.

Preferably, the second driving means comprises a second motor and a motor plate; the bottom of each sampling rod is provided with a cylindrical groove, the motor plate is fixedly arranged at the notch of the cylindrical groove, the second motor is arranged in the cylindrical groove and fixedly arranged on the motor plate, and the output shaft of the second motor penetrates through the motor plate and is in transmission connection with the rotating shaft.

Preferably, the sampling rod is axially provided with a through hole for a wire, and the movable plate is provided with a wire channel corresponding to the through hole for the wire; and a control box is fixedly arranged at the top of the movable plate.

The utility model discloses beneficial effect:

the utility model provides a sampling device for geotechnical investigation, which extends into lower soil layers through the sampling device and can obtain samples of soil layers with different depths; the device adopts the structure of the cylinder groove and the sampling groove to realize the sampling of the sample of the determined target layer, and meanwhile, the upper layer sample cannot fall into the sampling groove to influence the subsequent detection result; the device breaks the ground through rotatory helical blade to obtain the preferred sample condition.

The present invention will be further described with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is an overall internal structure view of a sampling device for geotechnical investigation according to an embodiment of the present invention;

fig. 2 is an installation structure view of a sampling device for rock and soil investigation according to an embodiment of the present invention;

fig. 3 is the utility model discloses sampling device's for ground reconnaissance sampling device's structure chart.

In the figure: 1. a second motor; 2. a cylinder; 3. a support bar; 4. a middle plate; 5. a lead screw; 6. a movable plate; 7. a top plate; 8. a first motor; 9. a control box; 10. a wire passage; 11. a polish rod; 12. a sampling rod; 13. a sampling slot; 14. a sampling box; 15. a base plate; 16. a helical blade; 17. a cylinder groove; 18. pushing the plate; 19. a top block; 20. a spring; 21. a movable door; 22. a sampling tube.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Examples

A sampling device for geotechnical investigation is shown in figures 1-3 and comprises a bracket, a first driving device, two groups of crushing devices and a sampling device;

the bracket comprises a bottom plate 15, a middle plate 4 and a top plate 7, as shown in FIG. 2; the middle plate 4 is erected above the bottom plate 15 through the support rods 3 arranged on two sides of the top of the bottom plate 15, and the top plate 7 is erected above the middle plate 4 through the movable rods arranged on two sides of the top of the middle plate 4; a movable plate 6 is arranged between the two movable rods, and a driving device is arranged at the top of the top plate 7 and drives the movable plate 6 to move up and down; the bottom plate 15 is used as a supporting part to be supported on the soil plane to be sampled;

the sampling device comprises two sampling rods 12 fixedly arranged at the bottom of the movable plate 6, as shown in fig. 3; the middle plate 4 and the bottom plate 15 are both provided with oval through grooves matched with the two sampling rods 12, so that a sample can pass through the sampling rods conveniently during sampling, and the sampling rods 12 can move up and down along with the movable plate 6 conveniently without interference; the lower parts of the two sampling rods 12 are respectively provided with at least one cylinder groove 17 and a sampling groove 13; a sampling pipe 22 communicated with the two sampling rods 12 is arranged between the cylinder groove 17 and the sampling groove 13, a sample channel is radially arranged at one end of the sampling pipe 22 close to the sampling groove 13, and when the sampling rods 12 feed downwards, soil layer samples to be taken out are reserved in the sample channel; the cylinder 2 is arranged in the cylinder groove 17, the cylinder 2 is fixedly arranged in the cylinder groove 17 and far away from one side of the sampling groove 13, and the cylinder 2 pushes the soil layer sample in the sampling pipe 22 into the sampling groove 13;

the two groups of crushing devices are respectively arranged at the bottoms of the two sampling rods 12, and each group of crushing devices comprises a rotating shaft, a helical blade 16 arranged on the rotating shaft and a second driving device for driving the rotating shaft to rotate; the driving device drives the helical blade 16 to rotate, so that the soil is crushed, and sampling is facilitated.

Further, a push rod of the air cylinder 2 penetrates through the sampling groove 13 and extends into the sampling pipe 22, a push plate 18 matched with the sampling pipe 22 is fixedly arranged at the end part of the push rod, and a top block 19 is fixedly arranged on the push plate 18; the soil layer to be sampled left in the sampling tube 22 is pushed into the sampling groove 13 by the push plate 18.

Furthermore, a sampling box 14 with an opening at the upper end is fixed in the sampling groove 13 by bolts at one side close to the cylinder groove 17, and is convenient to take out by adopting bolt fixation; sampling box 14 one side seted up with sampling tube 22 complex through-hole, the fixed spring 20 that is provided with of opposite side of sampling box 14, the end fixing of spring 20 is provided with the baffle, baffle and through-hole cooperation, the baffle area is greater than the kicking block 19 area, when the kicking block 19 on the push pedal 18 pushed away the baffle, the soil layer sample can fall into sampling box 14, when push pedal 18 retrieves, through spring 20's elasticity resumes, the baffle is once more closed the passageway between sampling groove 13 and the sampling tube 22.

Preferably, the notches of the cylinder groove 17 and the sampling groove 13 are hinged with movable doors 21, so that the parts can be conveniently sampled and repaired.

The first driving device comprises a first motor 8 fixedly arranged on the top plate 7, and the two movable rods are respectively a lead screw 5 and a polished rod 11; an output shaft of the first motor 8 penetrates through the top plate 7 to be in transmission connection with the screw rod 5, and the screw rod 5 is in rotary connection with the middle plate 4; the movable plate 6 is in threaded fit with the screw 5, and the movable plate 6 is in sliding fit with the polished rod 11.

Further, the second driving device includes a second motor 1 and a motor plate; the cylindrical groove has been seted up to the bottom of every sampling rod 12, and the motor board is fixed to be set up at the cylindrical groove notch, and second motor 1 sets up at the cylindrical groove inslot to fixed the setting on the motor board, the output shaft of second motor 1 passes the motor board, and is connected with the pivot transmission.

In addition, the sampling rod 12 is provided with a through hole for a lead along the axial direction, and the movable plate 6 is provided with a lead channel 10 corresponding to the through hole for the lead, so that the motor is conveniently and electrically connected with the control box 9; the top of the movable plate 6 is fixedly provided with a control box 9.

In the present embodiment, the first and second electrodes are,

a bottom plate 15 of the device is arranged in a sampling area, the whole sampling device is lifted to a position where a push rod of the highest control cylinder 2 is pushed to be flush with a sample channel, and a soil layer sample is prevented from remaining in a sampling pipe 22 in the descending process; the controller drives the first motor 8 to rotate, so as to drive the screw 5 to rotate, further drive the movable plate 6 to move up and down between the screw 5 and the polished rod 11, and drive the sampling rod 12 to move up and down;

the controller drives the second motor 1 to rotate, so as to drive the rotating shaft and the helical blade 16 to rotate, and further damage to the surface soil layer is realized; controlling the first motor 8 to continuously push the sampling device to move downwards, and sending a sampling groove 13 and a cylinder groove 17 in the sampling device into a sampling area;

the push rod of the control cylinder 2 is pushed forwards to push the baffle plate into the sampling box 14, and at the moment, the spring 20 is in a contraction state; after the belt sample falls into the sampling box 14, the push rod of the cylinder 2 returns to the original position, and the spring 20 is restored at the moment, so that the baffle blocks the through hole again;

after sampling is finished, the sampling device is lifted, and the sample in the sampling box 14 is taken out through the movable door 21.

In a preferred embodiment, a plurality of sampling slots 13 and cylinder slots 17 are formed in the sampling rod 12 for simultaneous multi-sample slice sampling.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A sampling device for geotechnical investigation is characterized by comprising a bracket, a first driving device, two groups of crushing devices and a sampling device;

the support comprises a bottom plate (15), a middle plate (4) and a top plate (7); the middle plate (4) is erected above the bottom plate (15) through support rods (3) arranged on two sides of the top of the bottom plate (15), and the top plate (7) is erected above the middle plate (4) through movable rods arranged on two sides of the top of the middle plate (4); a movable plate (6) is arranged between the two movable rods, the driving device is arranged at the top of the top plate (7) and drives the movable plate (6) to move up and down;

the sampling device comprises two sampling rods (12) fixedly arranged at the bottom of the movable plate (6); the middle plate (4) and the bottom plate (15) are both provided with oval through grooves matched with the two sampling rods (12); the lower parts of the two sampling rods (12) are respectively provided with at least one cylinder groove (17) and a sampling groove (13); a sampling pipe (22) communicated with the two sampling rods (12) is arranged between the cylinder groove (17) and the sampling groove (13), and a sample channel is radially arranged at one end, close to the sampling groove (13), of the sampling pipe (22); an air cylinder (2) is arranged in the air cylinder groove (17), the air cylinder (2) is fixedly arranged on one side, far away from the sampling groove (13), in the air cylinder groove (17), and the air cylinder (2) pushes the soil layer sample in the sampling pipe (22) into the sampling groove (13);

two sets of breaker sets up respectively two the bottom of sampling rod (12), every group breaker all includes the pivot, sets up epaxial helical blade (16) of pivot and drive pivot pivoted second drive arrangement.

2. The sampling device for geotechnical investigation of claim 1, characterized in that, the push rod of cylinder (2) passes through sampling groove (13) and stretches into sampling pipe (22), push plate (18) that the push rod tip is fixed and is provided with sampling pipe (22) cooperation, ejector block (19) is fixed to being provided with on push plate (18).

3. The sampling device for geotechnical investigation of claim 2, characterized in that a sampling box (14) with an open upper end is fixed in the sampling groove (13) by bolts at one side close to the cylinder groove (17), a through hole matched with the sampling pipe (22) is formed at one side of the sampling box (14), a spring (20) is fixedly arranged at the other side of the sampling box (14), a baffle is fixedly arranged at the end of the spring (20), the baffle is matched with the through hole, and the area of the baffle is larger than that of the top block (19).

4. The sampling device for geotechnical investigation of claim 3, characterized in that the notch of cylinder groove (17) and sampling groove (13) are hinged with movable door (21).

5. The sampling device for geotechnical investigation of claim 1, characterized in that, said first driving device comprises a first motor (8) fixedly arranged on said top plate (7), and two said movable rods are respectively a lead screw (5) and a polished rod (11); an output shaft of the first motor (8) penetrates through the top plate (7) to be in transmission connection with the lead screw (5), and the lower end of the lead screw (5) is in rotary connection with the middle plate (4); the movable plate (6) is in threaded fit with the lead screw (5), and the movable plate (6) is in sliding fit with the polished rod (11).

6. The sampling device for geotechnical investigation of claim 1, characterized in that, said second driving device includes a second motor (1) and a motor plate; the bottom of each sampling rod (12) is provided with a cylindrical groove, the motor plate is fixedly arranged at the notch of the cylindrical groove, the second motor (1) is arranged in the cylindrical groove and fixedly arranged on the motor plate, and the output shaft of the second motor (1) penetrates through the motor plate and is in transmission connection with the rotating shaft.

7. The sampling device for geotechnical investigation of claim 6, characterized in that the sampling rod (12) is axially provided with a through hole for a wire, and the movable plate (6) is provided with a wire channel (10) corresponding to the through hole for the wire; and a control box (9) is fixedly arranged at the top of the movable plate (6).