CN209992497U

CN209992497U - Non-contact type rock-soil shrinkage automatic test device

Info

Publication number: CN209992497U
Application number: CN201920565525.8U
Authority: CN
Inventors: 汪裕洋
Original assignee: Wuhan Zhongke Geotechnical Engineering Co Ltd
Current assignee: Wuhan Zhongke Geotechnical Engineering Co Ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-01-24
Anticipated expiration: 2029-04-24

Abstract

The utility model discloses a non-contact ground shrink automatic test device, has related to ground shrink test equipment technical field, has solved and has needed manual adjustment laser positioning device, artifical multiple data of repeated record, and the test is slow, the inaccurate problem of data, including square frame and support, the top of square frame is fixed with first crossbeam, and first crossbeam internal rotation is provided with first lead screw, and the screw cover is equipped with the bracing piece around the first lead screw, and first spout has been seted up to the both sides of first crossbeam, and the one end of first crossbeam is fixed with first driving motor, and one side of bracing piece slides and is provided with laser displacement sensor; and a counter and a buzzer are fixed on the square frame, and the counter is electrically connected with the buzzer and the laser displacement sensor. The utility model discloses be convenient for automatically measure the different positions of soil sample, carry out time interval's such as a lot of measurement automatically, realize carrying out the measurement of random point to soil sample, measured data is more accurate, and is more representative.

Description

Non-contact type rock-soil shrinkage automatic test device

Technical Field

The utility model belongs to the technical field of ground shrink test equipment technique and specifically relates to a non-contact ground shrink automatic test device is related to.

Background

Because the property of the fine-grained soil mainly depends on connection and compactness and is related to the content of clay, consistency and porosity ratio, the water content of the fine-grained soil also influences the plasticity, the contractibility, the expansibility, the water permeability, the compressibility, the shearing resistance and other properties of the fine-grained soil, when the contraction characteristic test is carried out on the fine-grained soil sample at home and abroad, the minimum value of the deformation of the soil sample in the coverage range is generally tested, because the buckling phenomenon can be generated in the dehydration contraction process of the soil sample, the relative heights of different positions of the soil sample are different due to the buckling of the soil sample, the problem that the measured result is that the soil sample is not shrunk but expanded is easily caused, and the error of the test data is larger.

The patent with the publication number of CN201110853Y proposes a non-contact rock soil shrinkage test device, which comprises a square frame, a laser displacement sensor, a secondary instrument, a laser displacement sensor support, a soil sample and a soil sample support, wherein the square frame is provided with a frame top frame, a frame side frame and a frame base, the frame top frame is provided with a laser displacement sensor support guide groove, the frame base is provided with a wedge-shaped fixed groove and a positioning baffle, and the laser displacement sensor support comprises a threaded rod with a hole, an outer fixed bolt, an inner fixed bolt, a laser displacement sensor fixed seat guide rod, a laser displacement sensor support guide rod and a laser displacement sensor guide groove.

The above prior art solutions have the following drawbacks: in the testing process, after the water content of the soil sample is reduced, the laser positioning device needs to be manually adjusted to determine the shrinkage condition of the soil sample at different positions, the manual work needs to wait in the field, and a plurality of data are repeatedly recorded, so that the testing steps are complex, the testing is slow, errors of the testing data are easily caused, and the data are to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a test mode is simple convenient, the test data precision is high, be favorable to the engineering construction progress a non-contact ground shrink automatic test device.

The utility model discloses a can realize through following technical scheme:

a non-contact rock soil shrinkage automatic test device comprises a square frame and a support used for placing a soil sample, wherein a first cross beam is fixed at the top end of the square frame, a first lead screw is arranged in the first cross beam in a rotating mode, a supporting rod perpendicular to the first cross beam is sleeved on the periphery of the first lead screw in a threaded mode, first sliding grooves matched with the two ends of the supporting rod in a sliding mode are formed in the two sides of the first cross beam, a first driving motor driving the first lead screw to rotate is fixed at one end of the first cross beam, and a laser displacement sensor is arranged on one side, facing the support, of the supporting rod in a sliding mode along the direction perpendicular to the axis of the first lead screw;

the square frame is movably provided with a counter and a buzzer, and the counter is electrically connected with the buzzer and the laser displacement sensor.

By adopting the technical scheme, the counter is reset, the soil sample is placed on the support and weighed, then the support with the soil sample is loaded to a designated position in the square frame, the soil sample is in a test range, the first driving motor drives the first screw rod to rotate, the first beam is driven to slide in the first chute to and fro along the axis of the first screw rod, thereby driving the laser displacement sensor to slide along the axial direction of the first screw rod, simultaneously the laser displacement sensor automatically slides along the axial direction vertical to the first screw rod, realizing the multi-directional automatic movement of the laser displacement sensor, thereby carrying out non-contact measurement on any point on the surface of the soil sample, utilizing the counter to count the measurement times of the laser displacement sensor, after the set measuring times are reached, a signal is transmitted to the buzzer to control the buzzer to buzz, and therefore workers are reminded to record data. The utility model discloses a multi-direction removal of laser displacement sensor's automation is convenient for automatically measure the different positions of soil sample, through the counter count to automatically, carry out time interval's such as a lot of measurement, need not the manual work and wait for in the field observation, thereby realize carrying out the measurement of random point to soil sample, measured data is more accurate, and is more representative.

Further setting the following steps: the both ends of bracing piece are towards the common fixedly connected with in one side that the support was located is on a parallel with the second crossbeam that the bracing piece set up, second crossbeam internal rotation is provided with the second lead screw, week side of second lead screw is fixed with the slider, the slider orientation one side of support is fixed with laser displacement sensor, the second crossbeam seted up with the second spout of slider sliding adaptation, the one end of second crossbeam is fixed with the drive second lead screw pivoted second driving motor.

By adopting the technical scheme, the second driving motor drives the second screw rod to rotate, and the sliding block and the laser displacement sensor are driven to slide along the axis direction of the second screw rod.

Further setting the following steps: the square frame in the one end that first crossbeam was located is fixed with two guide bars, the guide bar is on a parallel with first lead screw sets up, two are located respectively to the both ends cover of bracing piece the guide bar week side.

Through adopting above-mentioned technical scheme, the guide effect of guide bar makes the slip of bracing piece more stable, reduces rocking of laser displacement sensor, and the test gained data is more accurate.

Further setting the following steps: the square frame is fixed with two L-shaped pinch plates at one end of the support, the L-shaped pinch plates and the bottom of the square frame form an insertion groove, and insertion strips which are in insertion fit with the insertion groove are fixed on two sides of the support.

Through adopting above-mentioned technical scheme, be convenient for fix a position fast and load the support.

Further setting the following steps: and a positioning plate is fixed on one side of the square frame where the L-shaped buckle plate is located.

Through adopting above-mentioned technical scheme, utilize the locating plate to be convenient for the loading position of location support to the guarantee soil sample is in test range.

Further setting the following steps: the square frame is movably provided with two positioning screws at one side where the positioning plate is located and at one end far away from the positioning plate, the free ends of the positioning screws extend towards one side where the first cross beam is located and are connected with positioning nuts in a threaded mode, and a space for placing the support is defined by the positioning screws, the L-shaped buckle plate and the positioning screws.

Through adopting above-mentioned technical scheme, positioning screw further locks the support, because first driving motor, second driving motor operation in-process lead to the square frame to take place vibrations easily, utilizes positioning screw, L shape buckle, locating plate to fix the support spacing, reduces rocking of support for test data is more accurate.

Further setting the following steps: the square frame is provided with a kidney-shaped groove matched with the positioning screw in a sliding manner.

By adopting the technical scheme, the positions of the two positioning screws are convenient to adjust, so that the support can be conveniently loaded in the square frame, and the square frame is simple and convenient.

Further setting the following steps: the square frame is fixed with two mounting boxes on one side where the counter and the buzzer are located, and the mounting boxes are provided with containing cavities for mounting the counter and the buzzer.

By adopting the technical scheme, the counter and the buzzer can be conveniently mounted and dismounted, so that the counter and the buzzer can be conveniently adjusted.

To sum up, the utility model discloses a beneficial technological effect does:

(1) the laser displacement sensor is driven to slide along the axis direction of the first screw rod through the first screw rod, the support rod and the first sliding groove, and the laser displacement sensor is driven to slide along the axis direction of the second screw rod through the second screw rod, the sliding block and the second sliding groove, so that multi-direction automatic sliding of the laser displacement sensor is realized, automatic measurement of a plurality of different points of a soil sample plane is realized, the measurement mode is simple and convenient, and the measured data is more accurate;

(2) utilize the counter to count laser displacement sensor's measurement number of times, reach and set for the number of times after, control bee calling organ buzzes, reminds the staff automatically and collects the current data of laser displacement sensor record, reduces artifical on-the-spot latency, improves measurement of efficiency, utilizes the counter count, has realized that laser displacement sensor irregularly collects data to avoid artifical measuring subjectivity, it is more accurate effective to survey data.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a sectional view taken along line a-a of fig. 1.

Reference numerals: 1. a square frame; 2. a support; 3. a first cross member; 4. a first lead screw; 5. a support bar; 6. a first chute; 7. a first drive motor; 8. a laser displacement sensor; 9. a counter; 10. a buzzer; 11. a second cross member; 12. a second lead screw; 13. a slider; 14. a second chute; 15. a second drive motor; 16. a guide bar; 17. an L-shaped buckle plate; 18. inserting grooves; 19. inserting strips; 20. positioning a plate; 21. positioning a screw rod; 22. positioning a nut; 23. a kidney-shaped groove; 24. and (5) mounting the box.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a non-contact ground contracts automatic test device, including square frame 1, square frame 1 includes bottom plate, a plurality of montant, a plurality of horizontal pole, and the bottom plate sets up in the bottom at square frame 1, and is the cuboid form, and the montant is fixed in four angle departments and the perpendicular to bottom plate setting of bottom plate respectively, and the montant is kept away from fixedly connected with horizontal pole between the one end of bottom plate and the adjacent montant, and montant and horizontal pole mutually perpendicular set up.

The square frame 1 is fixed with a first beam 3 at one end far away from the bottom plate. Referring to fig. 2, a first lead screw 4 is rotatably arranged in the first cross beam 3, the first cross beam 3 and the first lead screw 4 are both arranged in an extending manner along the length direction of the bottom plate, a support rod 5 is sleeved on the circumferential side of the first lead screw 4 in a threaded manner, and the support rod 5 is perpendicular to the first cross beam 3. Referring to fig. 1, the first sliding groove 6 adapted to slide along the support rod 5 is formed in both sides of the first cross beam 3 perpendicular to the support rod 5, the first sliding groove 6 extends along the axis direction of the first lead screw 4, a first driving motor 7 for driving the first lead screw 4 to rotate is fixed at one end of the first cross beam 3, and a rotating shaft of the first driving motor 7 is coaxially and fixedly connected with the first lead screw 4 through a bearing. The first driving motor 7 drives the first screw rod 4 to rotate, and the support rod 5 is limited by the first sliding groove 6, so that the support rod slides along the axis of the first screw rod 4.

Referring to fig. 1 and 2, two guide rods 16 are fixed at one end of the square frame 1 where the first beam 3 is located, the guide rods 16 are arranged parallel to the first lead screw 4, and two ends of the support rod 5 are respectively sleeved on the peripheral sides of the two guide rods 16. The guide effect of guide bar 16 makes the slip of bracing piece 5 more stable, reduces rocking of laser displacement sensor 8, and the data that the test is obtained is more accurate.

Referring to fig. 1, a second beam 11 is fixedly connected to both ends of the support rod 5 facing the bottom plate. Referring to fig. 2, a second lead screw 12 is rotatably disposed in a second cross beam 11, the second cross beam 11 and the second lead screw 12 extend along the width direction of the bottom plate, a slider 13 is fixed on the peripheral side of the second lead screw 12, a laser displacement sensor 8 is fixed on one side of the slider 13 facing the bottom plate, a second chute 14 matched with the slider 13 in a sliding manner is formed in the second cross beam 11, a second driving motor 15 for driving the second lead screw 12 to rotate is fixed at one end of the second cross beam 11, and a rotating shaft of the second driving motor 15 is coaxially and fixedly connected with the second lead screw 12 through a bearing. The second driving motor 15 drives the second screw rod 12 to rotate, the sliding block 13 and the laser displacement sensor 8 are driven to slide along the axis direction of the second screw rod 12, the supporting rod 5 is combined to drive the second screw rod 12 to slide along the axis direction of the first screw rod 4, so that the laser displacement sensor 8 is driven to slide in multiple directions, after a soil sample is placed in the square frame 1, the laser displacement sensor 8 is utilized to carry out non-contact measurement on the soil sample, the measurement of multiple points and any point is realized, and the measurement data is more accurate.

Referring to fig. 1, a counter 9 and a buzzer 10 are fixed on one side of a square frame 1, and the counter 9 is electrically connected with the buzzer 10 and the laser displacement sensor 8. Utilize counter 9 to count laser displacement sensor 8's measurement number of times, after reaching appointed number of times, then transmit signal to buzzer 10 control buzzer 10 and remind staff's record data, realize the automatic function of reminding of automatic counting, avoid artifical at present to wait for and measure to make the data of surveying more objective effective, more accurate.

Two mounting boxes 24 are fixed on one side of the square frame 1 where the counter 9 and the buzzer 10 are located, and the mounting boxes 24 are provided with containing cavities for mounting the counter 9 and the buzzer 10. The counter 9 and the buzzer 10 are easy to mount and dismount, so that the counter 9 and the buzzer 10 can be adjusted conveniently.

The square frame 1 is movably provided with a support 2 at one side of the bottom plate facing the laser displacement sensor 8. The support 2 is used for placing a soil sample to be tested. Referring to fig. 1 and 2, square frame 1 is fixed with two L shape buckle 17 in one side that support 2 located, L shape buckle 17 is "L" font setting, the one end perpendicular to bottom plate setting that L shape buckle 17 is close to the bottom plate, the one end of keeping away from the bottom plate is on a parallel with the bottom plate setting, the one end that the bottom plate was kept away from to two L shape buckle 17 is in the relative one side of two L shape buckle 17, form inserting groove 18 between L shape buckle 17 and the bottom plate, the bottom of support 2 just is fixed with the grafting strip 19 with inserting groove 18 grafting adaptation in the both sides that are close to L line buckle. The support 2 is convenient to position and load quickly by the inserting fit of the inserting strip 19 and the inserting groove 18.

One end of each of the two L-shaped pinch plates 17 jointly forms an installation inlet of the support 2, a positioning plate 20 is fixed on one side of the square frame 1 where the L-shaped pinch plates 17 are located, and the positioning plate 20 is located at one end far away from the installation inlet of the support 2. When the support 2 is installed by the inserting and connecting adaptation of the inserting and connecting strips 19 and the inserting and connecting grooves 18, the blocking effect of the positioning plate 20 is utilized, so that the installation position of the support 2 is positioned, and the soil sample is ensured to be in the test range.

Referring to fig. 1, two positioning screws 21 are movably disposed at one side of a positioning plate 20 of a square frame 1 and at one end far away from the positioning plate 20, the positioning screws 21 are located at two ends of the two L-shaped buckles 17, the axis of each positioning screw 21 is arranged along the height direction of a bottom plate, the free end of each positioning screw 21 extends towards one side of the first cross beam 3 and is connected with a positioning nut 22 in a threaded manner, and the positioning screws 21, the L-shaped buckles 17 and the positioning screws 21 enclose a space for placing a support 2. Support 2 installs back to square frame 1 in, and positioning screw 21 further locks support 2, because first driving motor 7, the operation in-process of second driving motor 15 lead to square frame 1 to take place vibrations easily, utilizes positioning screw 21, L shape buckle 17, locating plate 20 to fix support 2 spacing, reduces rocking of support 2 for test data is more accurate.

The square frame 1 is provided with a kidney-shaped groove 23 which is matched with the positioning screw 21 in a sliding way. The positions of the two positioning screws 21 can be conveniently adjusted, so that the support 2 can be conveniently loaded in the square frame 1, and the method is simple and convenient.

The implementation principle and the beneficial effects of the embodiment are as follows:

place the soil sample in support 2 and after weighing, place support 2 and soil sample in square frame 1, through grafting strip 19, inserting groove 18, locating plate 20, positioning screw 21's combined action, with the position locking of support 2, through first driving motor 7, first lead screw 4, the combined action of bracing piece 5, drive laser displacement sensor 8 slides along the length direction of bottom plate, through second driving motor 15, second lead screw 12, the combined action of slider 13, drive laser displacement sensor 8 slides along the width direction on floor, realize the multi-directional automatic movement of laser displacement sensor 8, thereby realize the multiple spot measurement to the different positions of soil sample, utilize counter 9 and buzzer 10's combined action, be convenient for remind artifical record data, realize objective test. The utility model discloses the measurement mode is simple and convenient, realizes the automatic measure of the different positions of soil sample, and measurement of efficiency is higher, reduces because of the produced data error of soil sample warpage, need not artifical at the scene observation and waits, and measured data is more objective for data measurement's is more accurate, more representative.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a non-contact ground contracts automatic test device which characterized in that: the soil sample placing device comprises a square frame (1) and a support (2) used for placing a soil sample, wherein a first cross beam (3) is fixed at the top end of the square frame (1), a first screw rod (4) is arranged in the first cross beam (3) in a rotating mode, a supporting rod (5) perpendicular to the first cross beam (3) is sleeved on the circumferential side of the first screw rod (4) in a threaded mode, first sliding grooves (6) matched with the two ends of the supporting rod (5) in a sliding mode are formed in the two sides of the first cross beam (3), a first driving motor (7) driving the first screw rod (4) to rotate is fixed at one end of the first cross beam (3), and a laser displacement sensor (8) is arranged on one side, facing the support (2), of the supporting rod in a sliding mode in the direction perpendicular to the axis of the first screw rod (4);

the laser displacement sensor is characterized in that a counter (9) and a buzzer (10) are movably arranged on the square frame (1), and the counter (9) is electrically connected with the buzzer (10) and the laser displacement sensor (8).

2. The non-contact type rock-soil shrinkage automatic test device according to claim 1, characterized in that two ends of the supporting rod (5) are fixedly connected with a second cross beam (11) which is parallel to the supporting rod (5) and is arranged at one side where the support (2) is located, a second lead screw (12) is rotatably arranged in the second cross beam (11), a sliding block (13) is fixed on the peripheral side of the second lead screw (12), the sliding block (13) faces one side of the support (2) and is fixedly connected with the laser displacement sensor (8), a second sliding groove (14) which is matched with the sliding block (13) in a sliding manner is formed in the second cross beam (11), and a second driving motor (15) which drives the second lead screw (12) to rotate is fixed at one end of the second cross beam (11).

3. The non-contact type rock-soil shrinkage automatic test device according to claim 1, wherein two guide rods (16) are fixed at one end of the square frame (1) where the first cross beam (3) is located, the guide rods (16) are arranged in parallel to the first screw rod (4), and two ends of the support rod (5) are respectively sleeved on the periphery sides of the two guide rods (16).

4. The non-contact rock soil shrinkage automatic test device according to claim 1, characterized in that two L-shaped buckle plates (17) are fixed at one end of the square frame (1) where the support (2) is located, the L-shaped buckle plates (17) and the bottom of the square frame (1) form an insertion groove (18), and insertion strips (19) which are in insertion fit with the insertion groove (18) are fixed at two sides of the support (2).

5. The non-contact rock-soil shrinkage automatic test device according to claim 4, characterized in that a positioning plate (20) is fixed on one side of the square frame (1) where the L-shaped buckle plate (17) is located.

6. The non-contact rock-soil shrinkage automatic test device according to claim 5, characterized in that two positioning screws (21) are movably arranged at one side of the square frame (1) where the positioning plate (20) is located and at one end far away from the positioning plate (20), the free ends of the positioning screws (21) extend towards one side of the first cross beam (3) and are connected with positioning nuts (22) in a threaded manner, and the positioning plate (20), the L-shaped buckle plate (17) and the positioning screws (21) enclose a space for placing the support (2).

7. The non-contact rock-soil shrinkage automatic test device according to claim 6, characterized in that the square frame (1) is provided with a kidney-shaped groove (23) which is matched with the positioning screw rod (21) in a sliding manner.

8. The non-contact rock-soil shrinkage automatic test device according to claim 1, characterized in that two mounting boxes (24) are fixed on one side of the square frame (1) where the counter (9) and the buzzer (10) are located, and the mounting boxes (24) are provided with cavities for mounting the counter (9) and the buzzer (10).