CN211668902U

CN211668902U - Soil cutting instrument for geotechnical test

Info

Publication number: CN211668902U
Application number: CN202020290518.4U
Authority: CN
Inventors: 肖颖; 熊萍; 李渝
Original assignee: Sichuan Xingye Geotechnical Engineering Testing Co ltd
Current assignee: Sichuan Xingye Geotechnical Engineering Testing Co ltd
Priority date: 2020-03-10
Filing date: 2020-03-10
Publication date: 2020-10-13
Anticipated expiration: 2030-03-10

Abstract

The utility model relates to a geotechnical test is with surely native appearance belongs to the device field for geotechnical test, the loam cake storage device comprises a supporting fram, soil sample rack and soil sample cutting mechanism, soil sample rack sets up the bottom at the support frame, soil sample cutting mechanism sets up the top at the support frame, the support frame includes the bottom plate, be equipped with many stands on the bottom plate, soil sample cutting mechanism is including holding the pole, the bottom of holding the pole is equipped with the connecting rod support, be equipped with the slide bar sleeve that equals with stand quantity on the connecting rod support, every slide bar sleeve one-to-one cover is established on the stand, the bottom of connecting rod support is equipped with cutting tool, cutting tool is located directly over the soil sample rack, the top that just is located the connecting rod support on the support frame is equipped with the limiting plate, the through-hole has been seted up on the limiting plate, it wears to. The utility model discloses have and be convenient for prescribe a limit to the effect of operating in order to make things convenient for the staff to carry out the operation to cutting tool's position in cutting process.

Description

Soil cutting instrument for geotechnical test

Technical Field

The utility model belongs to the technical field of the technique of device for geotechnical test and specifically relates to a geotechnical test is with cutting native appearance is related to.

Background

Along with the rapid development of economy in China, urban underground engineering and harbor construction engineering are continuously increased, so that a large number of foundation excavation projects are generated, in order to ensure that the project construction is smoothly carried out, soil layer distribution in regions and physical and mechanical properties of all soil layers need to be clearly known through geotechnical tests, a triaxial test is an important method for measuring the shearing strength parameters of soil bodies, in the preparation process of undisturbed soil samples of the triaxial test, soil cutting instruments adopted by all laboratories are basically the same in type, usually, the undisturbed soil samples are fixed on soil cutting discs, the undisturbed soil samples are cut into required sizes by a wire saw or a soil cutting knife through rotating the soil cutting discs, however, in the sample preparation process of the method, the manual rotation of the soil cutting discs is complicated in process, and the rotation speed and the rotation angle of the soil cutting discs are difficult to control, so that the prepared soil samples cannot meet the requirements on the precision required by the experiments, and in addition, when preparing the soil samples or clay, the fretsaw is difficult to separate the cut soil from the sample in the cutting process, so that the size of the sample is difficult to control, and time and labor are wasted; although the soil cutting knife can well separate soil from a sample, the soil cutting force is difficult to control, and the disturbance to the soil sample is large, so that the physical and mechanical properties of the prepared soil sample and the undisturbed soil are greatly different.

The current chinese patent with the publication number of grant CN206848027U discloses a soil cutting instrument for soil test, the key points of its technical scheme lie in: the soil cutting machine comprises an ejector rod, a soil cutting frame, an ejector rod fixing disc and a cutting ring fixing tripod, wherein the soil cutting frame is provided with three vertical slide rods, the cutting ring fixing tripod is provided with three slide rod sleeves, and the cutting ring fixing tripod is slidably sleeved on the slide rods of the soil cutting frame through the slide rod sleeves; the ejector rod fixing disc is fixed at the central position of a top plate of the soil cutting frame, the ejector rod is vertically and slidably installed in the ejector rod fixing disc, and the front end of the ejector rod is connected with the cutting ring fixing tripod; be provided with the solid fixed ring of cutting ring on the fixed tripod of cutting ring, the solid fixed ring of end opening threaded connection cutting ring under the cutting ring, during the use, through promoting the ejector pin and move down, make the cutting ring on the fixed tripod of cutting ring cut the soil sample, foretell geotechnique test can effectively improve system appearance precision and efficiency with soil cutting instrument, and convenient operation, the controllability is better.

The above prior art solutions have the following drawbacks: above-mentioned technical scheme pushes the in-process that the ejector pin carries out the cutting to the clod downwards, and the staff need control the cutting dynamics, after cutting tool cut appointed thickness at the sample, then stops to push the ejector pin, to the clod of different specification thickness, the thickness that needs the cutting is different, and the staff need observe cutting on one side, and the operation is complicated and is difficult to guarantee the cutting position.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a geotechnical test is with cutting native appearance has and is convenient for prescribe a limit to the position of cutting tool in the cutting process in order to make things convenient for the advantage that the staff operated.

The utility model aims at realizing through the following technical scheme:

a soil cutting instrument for geotechnical tests comprises a support frame, a soil sample placing frame and a soil sample cutting mechanism, wherein the soil sample placing frame is arranged at the bottom of the support frame, the soil sample cutting mechanism is arranged at the top of the support frame, the support frame comprises a bottom plate, a plurality of stand columns are vertically arranged on the bottom plate, the soil sample cutting mechanism comprises a holding rod, a connecting rod support is arranged at the bottom of the holding rod, sliding rod sleeves with the number equal to that of the stand columns are arranged on the connecting rod support, each sliding rod sleeve is sleeved on each stand column in a one-to-one correspondence manner, a cutting tool is arranged at the bottom of the connecting rod support and is positioned right above the soil sample placing frame, a limiting plate is arranged on the support frame and above the connecting rod support, through holes are formed in the limiting plate, the holding rod penetrates through the through holes, a plurality of limiting assemblies are arranged on the holding rod and above the limiting plate along, the limiting assembly can be abutted to the limiting plate.

Through adopting above-mentioned technical scheme, through setting up the limiting plate on the support frame, and set up the spacing subassembly of multiunit on holding the pole, during the use, set up according to the thickness of taking the cutting soil block and adjust spacing subassembly, open one of them set of spacing subassembly, and close all the other spacing subassemblies, when holding the pole and remove spacing subassembly and limiting plate to the butt, can't continue downstream, thereby made things convenient for the regulation of cutting knife stroke, make cutting tool remove no longer to continue downstream behind the assigned position, so that adjust the cutting depth of soil block, and then made things convenient for the staff to operate.

The utility model discloses a further set up to: the limiting assembly comprises a limiting block, a plurality of mounting grooves are formed in the side wall of the holding rod, each limiting block corresponds to the mounting grooves in a one-to-one mode, a reset spring is fixedly arranged on the bottom wall of each mounting groove, and one end, far away from the bottom wall of each mounting groove, of each reset spring is fixedly connected with the corresponding limiting block.

Through adopting above-mentioned technical scheme, through setting up the stopper in the mounting groove to set up reset spring between stopper and mounting groove, outside the one end of stopper extended to the mounting groove under reset spring's butt effect, at the in-process that the holding rod moved down, after the diapire of stopper and limiting plate contact, the holding rod can't continue the downstream under the limiting displacement of stopper, thereby convenient the definite to the stroke that the holding rod moved down.

The utility model discloses a further set up to: the last upside that just is located the mounting groove of holding the pole has seted up the bar groove, the bar inslot slides and is provided with the shutoff board, the downside that just is located the mounting groove on the holding the pole sets up the slot that supplies the shutoff board to insert to establish.

Through adopting above-mentioned technical scheme, set up the bar groove through the upside at the mounting groove to at the bar inslot setting plugging plate, press the stopper into the installation in, then with the plugging plate of bar inslot sliding down and insert the slot in, the mounting groove can't be shifted out to the stopper under the limiting displacement of plugging plate.

The utility model discloses a further set up to: and toggle stripes are distributed on one surface of the plugging plate, which is far away from the bottom wall of the mounting groove, along the length direction of the plugging plate.

Through adopting above-mentioned technical scheme, stir the stripe through the one side setting of keeping away from the mounting groove diapire at the shutoff board, increase the coefficient of friction of shutoff board, the staff has made things convenient for stir the shutoff board through stirring the stripe.

The utility model discloses a further set up to: holding rod is last and be located the outside of mounting groove and seted up the holding tank, the holding tank is linked together with the mounting groove, strip shape groove and slot are seted up respectively on the upper end wall of holding tank and lower end wall.

Through adopting above-mentioned technical scheme, offer the holding tank through the outside at the mounting groove to set up strip groove and slot respectively on the upper end wall and the lower end wall of holding tank, so that make the closure plate be located the holding tank, avoid the closure plate to stretch out the holding tank and influence the removal of holding the pole to a certain extent.

The utility model discloses a further set up to: the top of connecting rod support is provided with the screw sleeve, the bottom of holding the pole is provided with the threaded rod, threaded rod and screw sleeve screw-thread fit.

Through adopting above-mentioned technical scheme, set up the screw sleeve through the top between the connecting rod to the threaded rod that will hold the pole bottom closes soon in the screw sleeve, through the screw in volume that changes the holding pole in the screw sleeve so that adjust soil sample cutting mechanism's whole length, further adapt to the thickness of waiting to cut the soil block.

The utility model discloses a further set up to: the soil sample placing rack is fixedly arranged on the bottom plate, and a soil sample placing plate is installed at the top of the soil sample placing rack.

Through adopting above-mentioned technical scheme, through fixing the soil sample rack on the bottom plate to place the board with the soil sample and install on the soil sample rack, avoided cutting process soil sample rack to take place to rock to a certain extent, thereby improved overall structure's stability.

The utility model discloses a further set up to: each upright post is provided with a limiting sleeve, and the height difference between the lower end face of the slide bar sleeve and the lower end face of the cutting tool is equal to the height difference between the upper end face of the limiting sleeve and the upper surface of the soil sample placing plate.

Through adopting above-mentioned technical scheme, through set up spacing sleeve on every stand, further protect soil sample cutting mechanism to avoid cutting tool to place the board with soil sample and bump and lead to damaging.

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

1. the utility model discloses a set up the limiting plate on the support frame to set up the spacing subassembly of multiunit on holding the pole, during the use, set up according to the thickness of taking the cutting soil piece and adjust spacing subassembly, open one of them a set of spacing subassembly, and close all the other spacing subassemblies, when holding the pole and remove to spacing subassembly and limiting plate to the butt, can't continue the downstream, thereby made things convenient for the regulation to the stroke of cutting knife utensil.

2. The utility model discloses a set up the bar groove at the upside of mounting groove to at the bar inslot setting shutoff board, press into the spacing inslot with the stopper, then with the shutoff board lapse of bar inslot and insert the slot, the spacing block can't shift out the spacing groove under the limiting displacement of shutoff board.

3. The utility model discloses a set up limit sleeve on every stand, further protect soil sample cutting mechanism to avoid cutting tool to place the board with soil sample and bump and lead to damaging.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural view of a holding rod according to an embodiment of the present invention.

Fig. 3 is an enlarged view of a portion a of fig. 2.

Fig. 4 is an enlarged view of a portion B of fig. 2.

In the figure, 1, a support frame; 11. a base plate; 12. a column; 121. a limiting sleeve; 13. a limiting plate; 2. placing a soil sample rack; 21. a soil sample placing plate; 3. a soil sample cutting mechanism; 31. a holding rod; 311. mounting grooves; 312. a strip-shaped groove; 313. a plugging plate; 3131. shifting the stripes; 314. a slot; 315. accommodating grooves; 316. a threaded rod; 32. a connecting rod bracket; 321. a threaded sleeve; 33. a ram sleeve; 34. cutting a cutter; 4. a limiting component; 41. a limiting block; 42. a return spring.

Detailed Description

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

As shown in fig. 1, for the utility model discloses a geotechnical test is with cutting native appearance, including support frame 1, soil sample rack 2 and soil sample cutting mechanism 3, soil sample cutting mechanism 3 sets up at the top of support frame 1, and support frame 1 includes bottom plate 11, and soil sample rack 2 is fixed to be set up on bottom plate 11, and soil sample rack 2's top is installed soil sample and is placed board 21 to avoid cutting process soil sample rack 2 to take place to rock, thereby improved overall structure's stability. The bottom plate 11 is vertically provided with a plurality of upright columns 12, the soil sample cutting mechanism 3 comprises a holding rod 31, a connecting rod support 32 is arranged at the bottom of the holding rod 31, sliding rod sleeves 33 equal to the upright columns 12 in number are arranged on the connecting rod support 32, each sliding rod sleeve 33 is sleeved on each upright column 12 in a one-to-one correspondence mode, a cutting tool 34 is arranged at the bottom of the connecting rod support 32, and the cutting tool 34 is located right above the soil sample placing frame 2.

As shown in fig. 1, each column 12 is provided with a limiting sleeve 121, the height difference between the lower end surface of the sliding rod sleeve 33 and the lower end surface of the cutting tool 34 is equal to the height difference between the upper end surface of the limiting sleeve 121 and the upper surface of the soil sample placing plate 21, in the process that the soil sample cutting mechanism 3 moves down integrally, when the sliding rod sleeve 33 moves to abut against the limiting sleeve 121, the cutting tool 34 contacts the soil sample placing plate 21, the soil sample cutting mechanism 3 cannot move down continuously under the abutting action of the limiting sleeve 121, so that the cutting tool 34 cannot move down continuously to collide with the placing plate, further protection of the soil sample cutting mechanism 3 is realized, and damage caused by collision of the cutting tool 34 and the soil sample placing plate 21 is avoided.

As shown in fig. 1 and fig. 2, the top that just is located connecting rod support 32 on support frame 1 is provided with limiting plate 13, the through-hole has been seted up on the limiting plate 13, holding rod 31 wears to establish in the through-hole, the top that just is located limiting plate 13 on holding rod 31 is provided with the spacing subassembly 4 of multiunit along self length direction, spacing subassembly 4 can with limiting plate 13 looks butt, set up according to the thickness of taking the cutting soil block and adjust spacing subassembly 4, open one of them a set of spacing subassembly 4, and close all the other spacing subassemblies 4, when holding rod 31 and removing to spacing subassembly 4 and limiting plate 13 to the butt, can't continue the downstream, thereby made things convenient for the regulation to cutting knife 34 stroke.

As shown in fig. 3 and 4, the limiting component 4 includes a limiting block 41, a plurality of mounting grooves 311 have been seted up on the lateral wall of the holding rod 31, every limiting block 41 one-to-one sets up in the mounting groove 311, the fixed reset spring 42 that is provided with on the diapire of mounting groove 311, the one end and the limiting block 41 fixed connection that the mounting groove 311 diapire was kept away from to reset spring 42, the strip groove 312 has been seted up to the upside that just is located the mounting groove 311 on the holding rod 31, it is provided with the closure plate 313 to slide in the strip groove 312, the slot 314 that supplies the closure plate 313 to insert the establishment is seted up to the downside that just is located.

The blocking plate 313 with the designated height is opened according to the thickness of the soil block to be cut, the limiting blocks 41 at other positions are pressed into the mounting groove 311, then the blocking plate 313 in the strip-shaped groove 312 slides downwards and is inserted into the slot 314, the limiting block 41 cannot move out of the mounting groove 311 under the limiting action of the blocking plate 313, the limiting block 41 in the mounting groove 311 opened by the blocking plate 313 extends out of the mounting groove 311 under the abutting action of the return spring 42, and in the downward moving process of the holding rod 31, after the bottom wall of the limiting block 41 contacts with the limiting plate 13, the holding rod 31 cannot continuously move downwards under the limiting action of the limiting block 41, so that the downward moving stroke of the holding rod 31 is conveniently determined.

As shown in fig. 3 and 4, the holding rod 31 and the outer portion of the mounting groove 311 have been provided with a receiving groove 315, the receiving groove 315 is communicated with the mounting groove 311, the strip-shaped groove 312 and the slot 314 are respectively provided on the upper end wall and the lower end wall of the receiving groove 315, so as to make the blocking plate 313 located in the receiving groove 315, to a certain extent, the blocking plate 313 is prevented from extending out of the receiving groove 315 and affecting the movement of the holding rod 31, the surface of the blocking plate 313 away from the bottom wall of the mounting groove 311 is distributed with toggle stripes 3131 along the length direction thereof, and the worker can toggle the blocking plate 313 through the toggle stripes 3131 so as to toggle the blocking.

As shown in fig. 1, a threaded sleeve 321 is arranged at the top of the connecting rod support 32, a threaded rod 316 is arranged at the bottom end of the holding rod 31, the threaded rod 316 is in threaded fit with the threaded sleeve 321, the threaded rod 316 at the bottom of the holding rod 31 is screwed in the threaded sleeve 321, and the whole length of the soil sample cutting mechanism 3 is adjusted by changing the screwing amount of the holding rod 31 in the threaded sleeve 321, so as to further adapt to the thickness of the soil block to be cut.

The implementation principle of the embodiment is as follows: through set up limiting plate 13 on support frame 1, and set up the spacing subassembly 4 of multiunit on holding pole 31, during the use, set up according to the thickness of taking the cutting soil block and adjust spacing subassembly 4, open one of them a set of spacing subassembly 4, and close all the other spacing subassemblies 4, when holding pole 31 and remove to spacing subassembly 4 and limiting plate 13 to the butt, can't continue downstream, thereby made things convenient for the regulation to cutting tool 34 stroke, make cutting tool 34 remove and no longer continue downstream behind the assigned position, so that adjust the cutting depth of soil block, and then made things convenient for the staff to operate.

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 soil cutting instrument for the geotechnical test comprises a support frame (1), a soil sample placing frame (2) and a soil sample cutting mechanism (3), wherein the soil sample placing frame (2) is arranged at the bottom of the support frame (1), the soil sample cutting mechanism (3) is arranged at the top of the support frame (1), the support frame (1) comprises a bottom plate (11), a plurality of stand columns (12) are vertically arranged on the bottom plate (11), the soil sample cutting mechanism (3) comprises a holding rod (31), a connecting rod support (32) is arranged at the bottom of the holding rod (31), sliding rod sleeves (33) equal to the stand columns (12) in number are arranged on the connecting rod support (32), each sliding rod sleeve (33) is sleeved on each stand column (12) in a one-to-one correspondence manner, a cutting tool (34) is arranged at the bottom of the connecting rod support (32), and the cutting tool (34) is positioned right above the soil sample placing frame (2), the method is characterized in that: the supporting frame (1) is provided with a limiting plate (13) above the connecting rod support (32), a through hole is formed in the limiting plate (13), the holding rod (31) penetrates through the through hole, a plurality of groups of limiting assemblies (4) are arranged on the holding rod (31) above the limiting plate (13) along the length direction of the holding rod, and the limiting assemblies (4) can be abutted to the limiting plate (13).

2. The earth cutting instrument for the geotechnical test according to claim 1, wherein: spacing subassembly (4) include stopper (41), a plurality of mounting grooves (311) have been seted up on the lateral wall of holding pole (31), every stopper (41) one-to-one sets up in mounting groove (311), fixes being provided with reset spring (42) on the diapire of mounting groove (311), the one end and stopper (41) fixed connection of mounting groove (311) diapire are kept away from in reset spring (42).

3. The earth cutting instrument for the geotechnical test according to claim 2, wherein: last just being located the upside of mounting groove (311) of holding rod (31) and seted up bar groove (312), it is provided with shutoff board (313) to slide in bar groove (312), just be located the downside of mounting groove (311) and seted up on holding rod (31) and supply shutoff board (313) to insert slot (314) of establishing.

4. The earth cutting instrument for the geotechnical test according to claim 3, wherein: and toggle stripes (3131) are distributed on one surface of the blocking plate (313) far away from the bottom wall of the mounting groove (311) along the length direction of the blocking plate.

5. The earth cutting instrument for the geotechnical test according to claim 3, wherein: holding rod (31) are gone up and be located the outside of mounting groove (311) and seted up holding tank (315), holding tank (315) are linked together with mounting groove (311), strip-shaped groove (312) and slot (314) are seted up respectively on the upper end wall and the lower end wall of holding tank (315).

6. The earth cutting instrument for the geotechnical test according to claim 1, wherein: the top of connecting rod support (32) is provided with screw sleeve (321), the bottom of holding pole (31) is provided with threaded rod (316), threaded rod (316) and screw sleeve (321) screw-thread fit.

7. The earth cutting instrument for the geotechnical test according to claim 1, wherein: the soil sample placing frame (2) is fixedly arranged on the bottom plate (11), and a soil sample placing plate (21) is installed at the top of the soil sample placing frame (2).

8. The earth cutting instrument for the geotechnical test according to claim 7, wherein: each upright post (12) is provided with a limiting sleeve (121), and the height difference between the lower end surface of the sliding rod sleeve (33) and the lower end surface of the cutting tool (34) is equal to the height difference between the upper end surface of the limiting sleeve (121) and the upper surface of the soil sample placing plate (21).