CN211577160U - Digital display type soil liquid plastic limit combined tester - Google Patents

Abstract

The utility model discloses a limit combined determinator is moulded to digital display soil liquid relates to soil detection instrument technical field. The tester comprises a rack and a tester body positioned on the rack, wherein a stirring tank is arranged on the rack, a stirring shaft is coaxially arranged in the stirring tank, a section of the stirring shaft positioned in the stirring tank is provided with a helical blade, and one end of the stirring shaft extending out of the stirring tank is connected with a driving assembly for driving the stirring shaft to rotate; still establish in the frame and be provided with the loading mechanism, loading mechanism includes the base, has seted up the caulking groove on the base, inlays in the caulking groove and is equipped with the sample cup, is provided with reciprocating cylinder directly over the sample cup, and reciprocating cylinder's piston rod tip is provided with the briquetting, and the briquetting sets up with the sample cup is coaxial, and the briquetting diameter is the same with the sample cup internal diameter. The utility model discloses can carry out mechanical loading with soil sample stirring, reduce artificial intervention, have the effect that promotes test quality, ensure the survey precision.

Description

Digital display type soil liquid plastic limit combined tester

Technical Field

The utility model belongs to the technical field of soil detecting instrument technique and specifically relates to a limit joint measurement appearance is moulded to digital display soil liquid.

Background

In civil engineering, in order to meet construction quality, physical, water and chemical performance test analysis must be carried out on soil of a design and construction site so as to set a proper construction treatment process and quality control, the soil liquid plastic limit is a necessary quality index for a civil engineering test, and the soil liquid plastic limit provides data for dividing soil types, calculating natural consistency, plasticity index and the like and is a key factor related to engineering quality. In the existing soil liquid plastic limit combined determination test process, a soil sample is prepared by uniformly mixing a soil sample by using a soil adjusting cutter, certain influence can be brought by human factors in the preparation process, the uniformity degree of the prepared soil sample cannot be guaranteed, and thus unnecessary errors are brought to test results.

The utility model discloses a chinese utility model patent that bulletin number is CN207119322U discloses an electric stirrer of limit joint measurement test soil sample is moulded to indoor liquid, it includes agitator tank, sealed lid, stirring rake and electric hand drill, the agitator tank is fixed in an agitator tank fixed establishment, agitator tank fixed establishment includes fixed plate and solid fixed cylinder, the fixed plate level sets up, the solid fixed cylinder is vertical to be fixed at the upside middle part of fixed plate, gu fixed cylinder upside opening, the agitator tank is fixed in the solid fixed cylinder, sealed lid closes the upside at the agitator tank, the lower part setting of stirring rake is in the agitator tank, the upper end of stirring rake stretches out sealed lid and is connected with the electric hand drill, the stirring rake include that (mixing) shaft and two at least symmetries fix the stirring vane in the (mixing) shaft lower part, stirring vane is the rectangle, stirring vane's long limit and the. In the stirring process, an operator can step on two ends of the fixing plate by feet and then stir by using an electric hand drill.

The prior art solutions in the above patents have the following drawbacks: the soil sample filling mechanism is lacked, the soil sample stirred uniformly still needs to be filled into the sample cup and compacted by a tester, the compaction degree is difficult to quantify, and a large error is introduced into the measurement result.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide a limit joint measurement appearance is moulded to digital display soil liquid, it can carry out the mechanical loading with soil sample stirring, reduces artificial intervention, has the advantage that promotes test quality, ensures the measurement accuracy.

The above object of the present invention can be achieved by the following technical solutions:

a digital display type soil liquid plastic limit combined tester comprises a rack and a tester body positioned on the rack, wherein a stirring tank is arranged on the rack, a stirring shaft is coaxially arranged in the stirring tank, a section of the stirring shaft positioned in the stirring tank is provided with a helical blade, and one end of the stirring shaft extending out of the stirring tank is connected with a driving component for driving the stirring shaft to rotate; the sample cup filling device is characterized in that a filling mechanism is further arranged on the rack and comprises a base, an embedding groove is formed in the base, a sample cup is embedded in the embedding groove, a reciprocating cylinder is arranged right above the sample cup, a pressing block is arranged at the end part of a piston rod of the reciprocating cylinder, the pressing block and the sample cup are coaxially arranged, and the diameter of the pressing block is the same as the inner diameter of the sample cup.

By adopting the technical scheme, the driving assembly is adjusted, the driving assembly drives the stirring shaft to move, the stirring shaft enters the stirring tank, a soil sample is added into the stirring tank, the driving assembly is adjusted, the driving assembly drives the stirring shaft to rotate, the soil sample is stirred, the soil sample is taken out after being uniformly stirred, part of the soil sample is added into the sample cup, the reciprocating cylinder is adjusted, the reciprocating cylinder is started, the reciprocating cylinder drives the pressing block to move downwards, the pressing block presses the soil sample in the sample cup, the soil sample is compacted, the soil sample is continuously added into the sample cup and is compacted by the pressing block until the soil sample in the sample cup is full, the soil sample filling is completed, the reciprocating cylinder is adjusted, the reciprocating cylinder stops working, the sample cup is taken out, and a soil liquid plastic limit determination test is carried out by matching with the tester body; the designed stirring tank, the stirring shaft and the stirring blades can uniformly stir the soil sample; the filling mechanism of design carries out mechanical filling to the soil sample of stirring, has reduced the artificial intervention of experimental preparation in-process, and then makes the experimental error of artificial introduction reduce, effectively promotes experimental quality, has ensured the survey precision.

The present invention may be further configured in a preferred embodiment as: the driving assembly comprises a standard air cylinder arranged on the rack and a first speed reducing motor connected with a piston rod of the standard air cylinder, and an output shaft of the first speed reducing motor is connected with the stirring shaft.

By adopting the technical scheme, when a soil sample is stirred, the standard air cylinder is adjusted, the piston rod of the standard air cylinder extends out to drive the first speed reducing motor to move downwards, the first speed reducing motor drives the stirring shaft to move downwards until the stirring shaft enters the stirring tank, the soil sample is added into the stirring tank, the first speed reducing motor is adjusted, the first speed reducing motor works, the output shaft of the first speed reducing motor drives the stirring shaft to rotate, and the soil sample is stirred; the standard cylinder of design drives the (mixing) shaft and goes up and down, is convenient for take out the soil sample that the stirring was accomplished, and the first gear motor of design stirs soil sample for more even of soil sample stirring has improved stirring efficiency simultaneously, has shortened the churning time.

The present invention may be further configured in a preferred embodiment as: the stirring tank is characterized in that a sieve plate is arranged on one side, close to the bottom wall of the stirring tank, the bottom wall of the stirring tank is inclined, the opening at the lowest position of the stirring tank is arranged, an inclined and downward conveying groove is arranged below the lowest position of the stirring tank, the conveying groove is far away from one side of the stirring tank and is arranged above the wall of the sample cup, and the projection of the conveying groove in the vertical direction is just intersected with the wall of the sample cup.

By adopting the technical scheme, the soil sample is stirred in the stirring tank along with the rotation of the stirring shaft and is conveyed to the bottom of the stirring tank by the helical blade, the soil sample is sheared by the cooperation of the sieve pores on the sieve plate and the helical blade, the sheared small-particle soil sample falls to the bottom plate of the stirring tank through the sieve pores on the sieve plate, falls into the conveying tank through the opening at the bottom of the stirring tank and slides to the sample cup through the conveying tank; the helical blade and the sieve of design stir and cut the soil sample, ensure that the soil sample is even, and the conveyer trough of design for stir in the agitator tank and through the automatic sample cup that gets into of sheared soil sample, need not the manpower and transport, convenient and practical.

The present invention may be further configured in a preferred embodiment as: and an anti-sticking mud sliding plate is bonded on the inner wall of the conveying groove.

Through adopting above-mentioned technical scheme, the antiseized swift current mud board of design is convenient for the sample soil to slide in the conveyer trough, reduces the possibility that sample soil blocks up the conveyer trough, ensures the conveying efficiency of conveyer trough.

The present invention may be further configured in a preferred embodiment as: the conveying trough is internally provided with a baffle, one side of the bottom wall of the conveying trough is far away from the baffle and is rotationally connected with the conveying trough, and a torsional spring which enables one side of the baffle to tend to abut against the bottom wall of the conveying trough is arranged at the rotational connection position of the baffle and the conveying trough.

By adopting the technical scheme, the sample soil enters the conveying groove and slides to the baffle plate, the baffle plate blocks the sample soil, when the sample soil in the conveying groove is accumulated to a certain degree, the torsion force applied to the baffle plate by the torsion spring is not enough to balance the pressure of the sample soil on the baffle plate, the baffle plate is opened, part of the sample soil slides into the sample cup to be compacted, the rest sample soil is continuously accumulated at the baffle plate, the sample soil is intermittently conveyed to the sample cup, and the sample soil in the sample cup is compacted layer by matching with the filling mechanism; the baffle and the torsional spring of design for sample soil intermittent type gets into in the sample cup, and the successive layer compaction promotes and loads the effect.

The present invention may be further configured in a preferred embodiment as: and a spring is arranged on one side of the baffle close to the bottom wall of the conveying trough, and the other end of the spring is connected with the top wall of the pressing block.

By adopting the technical scheme, the reciprocating cylinder works to drive the pressing block to move along the vertical direction, when the pressing block is far away from the sample cup, the pressing block drives the spring to extend, the tensile force applied to the baffle by the spring is gradually increased along with the extension of the spring, the spring drives the baffle to open after extending to a certain degree, and the soil sample in the conveying groove slides down to the sample cup; when the pressing block is close to the sample cup, the pressing block is close to the baffle, the spring contracts, the baffle is closed, and sample soil is prevented from sliding into the sample cup; the designed spring enables the baffle to be opened when the pressing block leaves the sample cup, and sample soil is conveyed into the sample cup; when the pressing block is close to the sample cup, the baffle is closed, and the pressing block is parked to convey sample soil to the sample cup, so that the sample soil can smoothly enter the sample cup.

The present invention may be further configured in a preferred embodiment as: the base is rotatably connected with the rack, a second speed reducing motor is arranged below the base, and the axis of an output shaft of the second speed reducing motor coincides with the axis of the caulking groove.

Through adopting above-mentioned technical scheme, the second gear motor of design for the sample cup keeps the rotation state, guarantees sample soil evenly distributed behind the sample cup, promotes sample soil compaction quality.

The present invention may be further configured in a preferred embodiment as: the stirring shaft is connected with a plurality of stirring cross rods, and the stirring cross rods are located between gaps of the helical blades.

Through adopting above-mentioned technical scheme, the stirring effect of (mixing) shaft to the appearance soil is strengthened to the stirring horizontal pole of design, ensures the even stirring of appearance soil.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the designed stirring tank, the stirring shaft and the stirring blades can uniformly stir the soil sample; the designed filling mechanism is used for mechanically filling the uniformly stirred soil sample, so that the manual intervention in the test preparation process is reduced, the artificially introduced test error is reduced, the test quality is effectively improved, and the measurement precision is ensured;

2. the designed helical blades and the sieve plate stir and shear the soil sample to ensure the uniformity of the soil sample, and the designed conveying groove ensures that the soil sample is uniformly stirred in the stirring tank and automatically enters the sample cup after being sheared, so that manual transportation is not needed, and the soil sample stirring device is convenient and practical;

3. the designed baffle, the torsional spring and the spring are matched, so that when the pressing block leaves the sample cup, the baffle is opened, and sample soil is conveyed into the sample cup; when the pressing block is close to the sample cup, the baffle is closed, and the pressing block is parked to convey sample soil to the sample cup, so that the sample soil can smoothly enter the sample cup.

Drawings

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

FIG. 2 is an enlarged partial view of portion A of FIG. 1, illustrating the connection of the baffles and related components;

FIG. 3 is an exploded view of the stirring part of the present invention, which is intended to show the specific structure of the stirring shaft and the stirring tank;

fig. 4 is an exploded view of the base part of the present invention, which is intended to show the position relationship between the second reduction motor and the base.

Reference numerals: 1. a frame; 2. a meter body; 3. a drive assembly; 31. a standard cylinder; 311. a first reduction motor; 32. a stirring shaft; 321. a helical blade; 322. a stirring cross bar; 33. a stirring tank; 331. a sieve plate; 4. a loading mechanism; 41. a base; 411. caulking grooves; 412. a second reduction motor; 42. a sample cup; 43. a reciprocating cylinder; 431. briquetting; 5. a conveying trough; 51. an anti-sticking mud sliding plate; 52. a baffle plate; 521. a torsion spring; 6. a spring.

Detailed Description

Referring to fig. 1, for the utility model discloses a limit joint measurement appearance is moulded to digital display soil liquid, including frame 1 and the apparatus body 2 that is located frame 1, be provided with drive assembly 3 in the frame, drive assembly 3 includes bolted connection standard cylinder 31 in frame 1 and the first gear motor 311 of being connected with standard cylinder 31 piston rod. First gear motor 311 below is provided with agitator tank 33, and the slope of agitator tank 33 diapire sets up, and the lowest department opening of agitator tank 33 sets up, and the lowest below of agitator tank 33 is provided with conveyer trough 5, and conveyer trough 5 is connected and is inclined downward setting in frame 1.

Referring to fig. 1, a loading mechanism 4 is further disposed on the frame 1, the loading mechanism 4 includes a base 41, and the base 41 is rotatably connected to the frame 1. As shown in fig. 4, a second speed reduction motor 412 is disposed below the base 41, a caulking groove 411 is formed in the base 41, and an axis of the caulking groove 411 coincides with an axis of an output shaft of the second speed reduction motor 412. The sample cup 42 is embedded in the embedding groove 411, the side of the conveying groove 5 far away from the stirring tank 33 is arranged above the wall of the sample cup 42, and the projection of the conveying groove 5 in the vertical direction just intersects with the wall of the sample cup 42. A reciprocating cylinder 43 is installed right above the sample cup 42, a pressing block 431 is fixedly connected to the end part of a piston rod of the reciprocating cylinder 43, the pressing block 431 and the sample cup 42 are coaxially arranged, and the diameter of the pressing block 431 is the same as the inner diameter of the sample cup 42.

Referring to fig. 2, an anti-sticking apron 51 is bonded to the inner wall of the trough 5. The baffle plate 52 is installed in the conveying trough 5, one side, far away from the bottom wall of the conveying trough 5, of the baffle plate 52 is rotatably connected with the conveying trough 5, and a torsion spring 521 enabling one side of the baffle plate 52 to tend to abut against the bottom wall of the conveying trough 5 is arranged at the position where the baffle plate 52 is rotatably connected with the conveying trough 5. One side of the baffle plate 52 close to the bottom wall of the conveying groove 5 is connected with a spring 6, and the other end of the spring 6 is connected to the top wall of the pressing block 431.

Referring to fig. 3, a sieve plate 331 is installed in the agitation tank 33, and the sieve plate 331 is installed near the bottom wall of the agitation tank 33. The stirring shaft 32 is coaxially arranged in the stirring tank 33, and the stirring shaft 32 is connected with an output shaft of the first speed reduction motor 311. The stirring shaft 32 is positioned in the stirring tank 33, and a section of the stirring shaft is welded with a helical blade 321 and a plurality of stirring cross bars 322, and the stirring cross bars 322 are positioned between gaps of the helical blade 321.

The implementation principle of the embodiment is as follows: when the soil sample is stirred, the standard air cylinder 31 is adjusted, the piston rod of the standard air cylinder 31 extends out to drive the first speed reducing motor 311 to move downwards, and the first speed reducing motor 311 drives the stirring shaft 32 to move downwards until the stirring shaft 32 enters the stirring tank 33. Adding a soil sample into the stirring tank 33, adjusting the first speed reducing motor 311, wherein the first speed reducing motor 311 works, an output shaft of the first speed reducing motor 311 drives the stirring shaft 32 to rotate, the stirring shaft 32 drives the stirring cross rod 322 and the helical blade 321 to rotate, stirring the soil sample, conveying the soil sample to the bottom of the stirring tank 33 through the helical blade 321, shearing the soil sample by matching the sieve holes on the sieve plate 331 with the helical blade 321, allowing the sheared small-particle soil sample to fall to the bottom plate of the stirring tank 33 through the sieve holes on the sieve plate 331, falling into the conveying groove 5 through the opening at the bottom of the stirring tank 33, sliding into the sample cup 42 through the conveying groove 5, adjusting the reciprocating cylinder 43, starting the reciprocating cylinder 43, driving the pressing block 431 to move downwards, when the pressing block 431 is close to the sample cup 42, the pressing block 431 is close to the baffle 52, the spring 6 contracts, the baffle 52 is closed, and the sample soil is prevented from sliding, the pressing block 431 presses the soil sample in the sample cup 42 to compact the soil sample. After the soil sample is compacted, the reciprocating cylinder 43 works to drive the pressing block 431 to be away from the sample cup 42, the pressing block 431 drives the spring 6 to extend, the tensile force applied to the baffle 52 by the spring 6 is gradually increased along with the extension of the spring 6, the baffle 52 is driven to be opened after the spring 6 extends to a certain degree, the soil sample in the conveying groove 5 slides downwards to the sample cup 42, then the soil sample descends along with the pressing block 431, the baffle 52 is closed, the residual soil sample continues to be accumulated at the baffle 52, the soil sample is intermittently conveyed into the sample cup 42, the soil sample in the sample cup 42 is compacted layer by matching with the filling mechanism 4 until the soil sample in the sample cup 42 is full, and the soil sample filling is completed. Then, the sample cup 42 is taken out and the soil liquid plastic limit measurement test is performed in cooperation with the measuring instrument body 2.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (8)

1. The digital display type soil liquid plastic limit combined tester comprises a rack (1) and a tester body (2) positioned on the rack (1), and is characterized in that a stirring tank (33) is arranged on the rack (1), a stirring shaft (32) is coaxially arranged in the stirring tank (33), a spiral blade (321) is installed at one section of the stirring shaft (32) positioned in the stirring tank (33), and one end, extending out of the stirring tank (33), of the stirring shaft (32) is connected with a driving assembly (3) for driving the stirring shaft (32) to rotate; the loading device is characterized in that the rack (1) is further provided with a loading mechanism (4), the loading mechanism (4) comprises a base (41), an embedding groove (411) is formed in the base (41), a sample cup (42) is embedded in the embedding groove (411), a reciprocating cylinder (43) is arranged right above the sample cup (42), a pressing block (431) is arranged at the end part of a piston rod of the reciprocating cylinder (43), the pressing block (431) and the sample cup (42) are coaxially arranged, and the diameter of the pressing block (431) is the same as the inner diameter of the sample cup (42).

2. The digital soil liquid plastic limit combined measuring instrument according to claim 1, wherein the driving assembly (3) comprises a standard cylinder (31) arranged on the frame (1) and a first speed reduction motor (311) connected with a piston rod of the standard cylinder (31), and an output shaft of the first speed reduction motor (311) is connected with the stirring shaft (32).

3. The digital soil liquid plastic limit joint measuring instrument according to claim 2, wherein a sieve plate (331) is disposed inside the stirring tank (33) near one side of the bottom wall of the stirring tank (33), the bottom wall of the stirring tank (33) is disposed obliquely, the lowest opening of the stirring tank (33) is disposed, and a conveying trough (5) inclined downward is disposed below the lowest opening of the stirring tank (33), the conveying trough (5) is disposed above the cup wall of the sample cup (42) on the side away from the stirring tank (33), and the projection of the conveying trough (5) in the vertical direction just intersects with the cup wall of the sample cup (42).

4. The digital soil liquid plastic limit combined measuring instrument according to claim 3, wherein an anti-sticking mud-sliding plate (51) is arranged on the inner wall of the conveying trough (5).

5. The digital display type soil liquid plastic limit combined measuring instrument according to claim 4, wherein a baffle (52) is arranged in the conveying trough (5), one side, far away from the bottom wall of the conveying trough (5), of the baffle (52) is rotatably connected with the conveying trough (5), and a torsion spring (521) enabling one side of the baffle (52) to tend to abut against the bottom wall of the conveying trough (5) is arranged at the rotary connection position of the baffle (52) and the conveying trough (5).

6. The digital soil liquid plastic limit combined measuring instrument according to claim 5, wherein a spring (6) is arranged on one side of the baffle (52) close to the bottom wall of the conveying groove (5), and the other end of the spring (6) is connected with the top wall of the pressing block (431).

7. The digital display type soil liquid plastic limit combined measuring instrument according to claim 3, wherein the base (41) is rotatably connected with the frame (1), a second speed reduction motor (412) is arranged below the base (41), and the axis of the output shaft of the second speed reduction motor (412) is overlapped with the axis of the caulking groove (411).

8. The digital soil liquid plastic limit combined measuring instrument according to claim 7, wherein a plurality of stirring cross bars (322) are connected to the stirring shaft (32), and the stirring cross bars (322) are located between the gaps of the helical blades (321).

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