CN110687273A - Device for cutting undisturbed soil sample into cutting ring - Google Patents
Device for cutting undisturbed soil sample into cutting ring Download PDFInfo
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- CN110687273A CN110687273A CN201911107496.1A CN201911107496A CN110687273A CN 110687273 A CN110687273 A CN 110687273A CN 201911107496 A CN201911107496 A CN 201911107496A CN 110687273 A CN110687273 A CN 110687273A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The embodiment of the invention discloses a device for cutting an undisturbed soil sample into a cutting ring, and relates to the technical field of geological exploration geotechnical test equipment. The pole setting is fixed on the base, and the entablature is fixed in the pole setting upper end, and the sheer pole sets up in the entablature below, the one end and the pole setting fixed connection of sheer pole, the other end pass the spout on the drum lateral wall and stretch into in the drum, reset spring sets up in the drum, and reset spring fixes at sheer pole other end upside, and the connecting rod of the vertical setting of top cap fixedly connected with is passed through to the drum upper end, and the connecting rod slides and passes the middle part of entablature, presses the one end of handle to rotate with the entablature and is connected, and the connecting. Simple structure, processing convenience, with low costs can once only cut into the cutting ring with soil sample in, can not the layering cutting, can avoid manual soil cutting to the secondary disturbance, fracture and the ring phenomenon of leaving of original state soil sample, and the soil quality of cutting reaches regulation standard requirement, and can high-efficient completion soil cutting work, also can greatly reduce intensity of labour.
Description
Technical Field
The embodiment of the invention relates to the technical field of geological exploration geotechnical test equipment, in particular to a device for cutting an undisturbed soil sample into a cutting ring, which is suitable for the industries of geotechnical engineering geological exploration, water conservancy and hydropower, roads, bridges, railway engineering, nonferrous metals, coal and the like.
Background
One of the main tasks of engineering investigation is to take core or undisturbed soil samples in the geotechnical layer. After the undisturbed soil sample is sent into a laboratory, a tester cuts the soil sample into the cutting ring under the condition of not disturbing the undisturbed soil sample, and the method plays a vital role in ensuring the precision of test data.
After a natural undisturbed soil sample taken out on site is sent into a laboratory, a professional responsible person in the laboratory needs to open the soil sample, and the undisturbed soil sample is specified in the geotechnical test method standard GB50123-2019 and is carried out according to the following steps: 1. and (3) placing the soil sample cylinder in the marked up-down direction, removing the wax seal and the adhesive tape, opening the soil sample cylinder to take out the soil sample, checking the structure of the soil sample, and not preparing a sample for a mechanical property test when the soil sample is determined to be disturbed or the soil sampling quality is not in accordance with the regulations. 2. When a sample is cut by using the cutting ring according to test requirements, a thin layer of vaseline is coated on the inner wall of the cutting ring, the cutting edge is placed on a soil sample downwards, the cutting ring is vertically pressed downwards, the soil sample is cut along the outer side of the cutting ring by using the soil cutting knife, the edge is pressed until the soil sample is higher than the cutting ring, the soil samples at two ends of the cutting ring are leveled by using a wire saw or the soil cutting knife according to the hardness of the sample, the outer wall of the cutting ring is wiped, and the total mass of the cutting ring and the soil is called.
During tests such as indoor density measurement, direct shearing, compression, permeation, expansion, shrinkage and the like, the natural undisturbed soil taken back on site is cut into the cutting ring before the tests, when the soil sample is in a soft, plastic and soft state, the cutting ring can be used for cutting directly by hand, although the disturbance on the soil sample is small, the time is consumed. When hard old clay is encountered, the manual cutting of the soil sample is time-consuming and labor-consuming. When the cutting ring is manually pressed, the phenomenon that the soil sample is separated from the cutting ring and cut into the soil sample in the cutting ring due to the fact that the force is balanced cannot be guaranteed, and when the phenomenon of separation of the soil sample from the cutting ring occurs, water leakage from the side wall is prone to occurring in a penetration test, and the test result is affected; when tests such as density, direct shearing, compression test, expansion, contraction and the like are carried out, the soil sample cannot enter the cutting ring in the vertical direction of the natural state, so that the disturbance on the soil sample is large, and the accuracy of the test result is influenced finally.
At present, when a professional responsible person in a soil engineering laboratory opens a soil sample, the soil sample is firstly divided into soil samples with different thicknesses, and then a soil cutting person cuts the divided soil sample into a cutting ring according to regulations and regulations in specifications. Before cutting into the ring cutter, uniformly coating Vaseline on the inner wall of the ring cutter to increase the lubrication degree, and then sequentially measuring the test results of density test, shear test, compression test, expansion, contraction and the like of the soil sample with the number according to the soil sample number.
At present, soil cutting is carried out manually, soil cutting personnel cut a soil sample into a cutting ring according to 'soil engineering test method standard', when hard old clay is met, the force is difficult to be balanced, and disturbance phenomena such as cracking, ring separation, cutting ring displacement and the like of the soil sample can be generated. Thereby affecting the accuracy of the test result.
Disclosure of Invention
Therefore, the embodiment of the invention provides a device for cutting an undisturbed soil sample into a cutting ring, so as to solve the problems that manual soil cutting in the prior art is time-consuming, labor-consuming and has large disturbance on the soil sample.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
according to the first aspect of the embodiment of the invention, the device for cutting the undisturbed soil sample into the cutting ring comprises a base, a vertical rod, an upper transverse rod, a lower transverse rod, a return spring, a cylinder and a pressing handle, wherein the vertical rod is fixed on the base, the upper transverse rod is fixed at the upper end of the vertical rod, the lower transverse rod is arranged below the upper transverse rod, one end of the lower transverse rod is fixedly connected with the vertical rod, the other end of the lower transverse rod penetrates through a sliding groove in the side wall of the cylinder and extends into the cylinder, the return spring is arranged in the cylinder, the return spring is fixed at the upper side of the other end of the lower transverse rod, the upper end of the cylinder is fixedly connected with a vertically arranged connecting rod through a top cover, the connecting rod slides.
Furthermore, a sliding positioning mechanism is arranged between the connecting rod and the pressing handle.
Furthermore, the sliding positioning mechanism comprises a positioning pin arranged at the upper end of the connecting rod and a positioning groove arranged on the lower side of the pressing handle, and the positioning pin is arranged in the positioning groove in a sliding manner.
Furthermore, the inner side of the lower end of the cylinder is provided with an annular cutting ring fixing groove.
Furthermore, the base on be equipped with the operation panel, base upside middle part is equipped with a fixed station, the operation panel downside be equipped with fixed station threaded connection's double-screw bolt.
Further, the top cap include first top cap and second top cap, first top cap is fixed at the drum inboard, second top cap and drum threaded connection, the second top cap setting is at first top cap upside, first top cap upside and second top cap downside are equipped with the sphere recess respectively, the lower extreme of connecting rod is equipped with the bulb of fixing between first top cap and second top cap, the connecting rod upwards passes the second top cap.
Furthermore, one end of the lower cross rod is connected with the vertical rod through a height adjusting mechanism.
Furthermore, the height adjusting mechanism comprises a height adjusting sleeve, the height adjusting sleeve is arranged on the vertical rod in a sliding mode, an adjusting screw hole is formed in the side portion of the height adjusting sleeve, and the screw penetrates through the adjusting screw hole and then tightly pushes the vertical rod.
Furthermore, a spring bracket is fixed on the upper side of the other end of the lower cross rod, an annular groove is formed in the upper side of the spring bracket, and the lower end of the reset spring is fixed in the annular groove.
Furthermore, arc-shaped guide grooves are formed in two sides of the lower cross rod, and the side walls of the cylinders on two sides of the sliding groove are clamped into the arc-shaped guide grooves.
The embodiment of the invention has the following advantages:
the device provided by the embodiment of the invention has the advantages of simple structure, convenience in processing and low cost, can cut the soil sample into the cutting ring at one time, can cut the soil sample without layering, and can avoid secondary disturbance such as cracking, ring separation and the like on the original soil sample through a large amount of soil sample cutting tests, so that the soil cutting quality meets the specification and specification requirements, the test precision is improved, the labor intensity is effectively reduced, and the working efficiency is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, should still fall within the scope of the present invention.
Fig. 1 is a schematic view of an apparatus for cutting an undisturbed soil sample into a cutting ring according to embodiment 1 of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
FIG. 4 is a schematic view of the structure of the bottom rail and the spring bracket;
FIG. 5 is an exploded view of an apparatus for cutting an undisturbed soil sample into a cutting ring according to example 1 of the present invention;
FIG. 6 is an exploded view of an apparatus for cutting an undisturbed soil sample into a cutting ring according to example 1 of the present invention;
in the figure: 1-base 2-operation table 3-cutting ring 4-vertical rod 5-cylinder 6-upper cross bar 7-lower cross bar 8-height adjusting sleeve 9-spring bracket 10-reset spring 11-connecting rod 12-pressing handle 13-positioning pin 14-positioning slot 15-ring groove 16-sliding slot 17-first top cover 18-nylon gasket 19-ball 20-second top cover 21-fixed table 22-stud 23-cutting ring fixing slot 24-arc guide slot.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof are also regarded as the scope of the present invention without substantial changes in the technical contents.
Referring to fig. 1-6, the device for cutting an undisturbed soil sample into a cutting ring comprises a base 1, a vertical rod 4, an upper cross rod 6, a lower cross rod 7, a return spring 10, a cylinder 5 and a pressing handle 12, wherein the vertical rod 4 is fixed on the base 1, the upper cross rod 6 is fixed at the upper end of the vertical rod 4, the lower cross rod 7 is arranged below the upper cross rod 6, one end of the lower cross rod 7 is fixedly connected with the vertical rod 4, the other end of the lower cross rod 7 penetrates through a sliding groove 16 in the side wall of the cylinder 5 and extends into the cylinder 5, the return spring 10 is arranged in the cylinder 5, the return spring 10 is fixed at the upper side of the other end of the lower cross rod 7, the upper end of the cylinder 5 is fixedly connected with a vertically arranged connecting rod 11 through a top cover, the connecting rod 11 slides through the middle of the upper cross rod 6, the upper cross rod 6 plays a role in.
A sliding positioning mechanism is arranged between the connecting rod 11 and the pressing handle 12 to ensure the reliable connection of the pressing handle 12 and the connecting rod 11. The sliding positioning mechanism comprises a positioning pin 13 arranged at the upper end of the connecting rod 11 and a positioning groove 14 arranged at the lower side of the pressing handle 12, and the positioning pin 13 is arranged in the positioning groove 14 in a sliding mode.
An operating platform 2 is arranged on the base 1, a fixing platform 21 is arranged in the middle of the upper side of the base 1, and a stud 22 in threaded connection with the fixing platform 21 is arranged on the lower side of the operating platform 2. The height of the operating platform 2 can be adjusted by rotating the operating platform 2, so that the soil sample can be fixed conveniently.
The top cap includes first top cap 17 and second top cap 20, and first top cap 17 is fixed at the drum 5 inboard, and second top cap 20 and drum 5 threaded connection, second top cap 20 set up at first top cap 17 upside, and first top cap 17 upside and second top cap 20 downside are equipped with the sphere recess respectively, and the lower extreme of connecting rod 11 is equipped with the bulb 19 of fixing between first top cap 17 and second top cap 20, and connecting rod 11 upwards passes second top cap 20. A nylon gasket 18 is also provided between the first top cover 17 and the second top cover 20. Because the drum 5 is curved, the left and right 2 arc-shaped guide grooves 24 on the lower cross bar 7 are required to be arranged concentrically with the drum 5, so that the side wall plates of the sliding groove 16 on the drum 5 slide in the arc-shaped guide grooves 24 after the pressing handle 12 is pressed downwards. In the embodiment, the first top cover 17 and the second top cover 20 are connected through the ball head 19, so that the pressing handle 12 is ensured to be pressed down, and then the cylinder 5 can be uniformly stressed to vertically move downwards, so that the disturbance to the soil sample is reduced. In this embodiment, a ball head is also disposed at the upper end of the positioning pin 13, so as to further ensure that the connecting rod 11 drives the cylinder 5 and the cutting ring 3 to move downwards along the vertical direction.
One end of the lower cross rod 7 is connected with the vertical rod 4 through a height adjusting mechanism. The height adjusting mechanism comprises a height adjusting sleeve 8, the height adjusting sleeve 8 is arranged on the vertical rod 4 in a sliding mode, an adjusting screw hole is formed in the side portion of the height adjusting sleeve 8, and a screw penetrates through the adjusting screw hole to tightly push the vertical rod 4. A spring bracket 9 is fixed on the upper side of the other end of the lower cross bar 7, an annular groove 15 is arranged on the upper side of the spring bracket 9, and the lower end of the return spring 10 is fixed in the annular groove 15.
The soil sample is placed on the operating platform 2, the circular cutter 3 is fixed in a circular cutter fixing groove 23 at the lower end of the cylinder 5, the operating platform 2 is rotated, the operating platform 2 is lifted, the soil sample is contacted with the lower end of the circular cutter 3, then the pressing handle 12 is pressed downwards, the pressing handle 12 presses the connecting rod 11 downwards, the connecting rod 11 drives the cylinder 5 to press downwards, the cylinder 5 overcomes the resistance of the spring to drive the circular cutter 3 to press downwards, so that the soil sample is uniformly cut into the circular cutter 3, the positioning pin 13 at the upper end of the connecting rod 11 slides in the positioning groove 14 in the pressing process of the pressing handle 12, the lower cross rod 7 is fixed in the downward moving process of the cylinder 5, and the sliding groove 16 on the cylinder 5 slides relative to the arc-shaped guide groove 24. After the soil is cut, the pressing handle 12 is released, and the return spring 10 drives the cylinder 5 to move upwards, so that the cylinder 5 is separated from the cutting ring 3.
The device provided by the embodiment of the invention has the advantages of simple structure, convenience in processing and low cost, can cut the soil sample into the cutting ring 3 at one time, can cut the soil sample without layering, and can avoid the phenomenon of unbalanced stress of the soil sample cut into the cutting ring 3 at one time through a large amount of soil sample cutting tests, so that secondary disturbance such as cracking, ring separation and the like to the original soil sample can be avoided, the soil cutting quality meets the regulation and specification requirements, the test precision is improved, the labor intensity is effectively reduced, and the working efficiency is greatly improved.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The utility model provides a cut into device in cutting ring sword with original state soil sample which characterized in that: the device comprises a base (1), a vertical rod (4), an upper cross rod (6), a lower cross rod (7), a return spring (10), a cylinder (5) and a pressing handle (12), pole setting (4) are fixed on base (1), last horizontal pole (6) are fixed in pole setting (4) upper end, sheer pole (7) set up in last horizontal pole (6) below, the one end and pole setting (4) fixed connection of sheer pole (7), spout (16) that the other end passed on drum (5) lateral wall stretch into drum (5) in, reset spring (10) set up in drum (5), reset spring (10) are fixed in sheer pole (7) other end upside, connecting rod (11) of the vertical setting of top cap fixedly connected with are passed through to drum (5) upper end, connecting rod (11) slide the middle part of passing last horizontal pole (6), the one end and last horizontal pole (6) of pressing handle (12) rotate and are connected, connecting rod (11) upper end support is pressing handle (12) middle part downside.
2. The apparatus of claim 1, wherein the cutting means comprises: a sliding positioning mechanism is arranged between the connecting rod (11) and the pressing handle (12).
3. The apparatus of claim 2, wherein the cutting means comprises: the sliding positioning mechanism comprises a positioning pin (13) arranged at the upper end of the connecting rod (11) and a positioning groove (14) arranged at the lower side of the pressing handle (12), and the positioning pin (13) is arranged in the positioning groove (14) in a sliding manner.
4. The apparatus of claim 1, wherein the cutting means comprises: the inner side of the lower end of the cylinder (5) is provided with an annular cutting ring fixing groove (23).
5. The apparatus of claim 1, wherein the cutting means comprises: the base (1) on be equipped with operation panel (2), base (1) upside middle part is equipped with a fixed station (21), operation panel (2) downside is equipped with double-screw bolt (22) with fixed station (21) threaded connection.
6. The apparatus of claim 1, wherein the cutting means comprises: the top cap include first top cap (17) and second top cap (20), first top cap (17) are fixed at drum (5) inboardly, second top cap (20) and drum (5) threaded connection, second top cap (20) set up in first top cap (17) upside, first top cap (17) upside and second top cap (20) downside are equipped with the sphere recess respectively, the lower extreme of connecting rod (11) is equipped with bulb (19) of fixing between first top cap (17) and second top cap (20), connecting rod (11) upwards pass second top cap (20).
7. The apparatus of claim 1, wherein the cutting means comprises: one end of the lower cross rod (7) is connected with the upright rod (4) through a height adjusting mechanism.
8. The apparatus of claim 7, wherein the cutting means comprises: the height adjusting mechanism comprises a height adjusting sleeve (8), the height adjusting sleeve (8) is arranged on the vertical rod (4) in a sliding mode, an adjusting screw hole is formed in the side portion of the height adjusting sleeve (8), and the screw penetrates through the adjusting screw hole to tightly push the vertical rod (4).
9. The apparatus of claim 1, wherein the cutting means comprises: the upper side of the other end of the lower cross rod (7) is fixed with a spring support seat (9), the upper side of the spring support seat (9) is provided with an annular groove (15), and the lower end of the reset spring (10) is fixed in the annular groove (15).
10. The apparatus of claim 1, wherein the cutting means comprises: arc-shaped guide grooves (24) are formed in the two sides of the lower cross rod (7), and the side walls of the cylinders (5) on the two sides of the sliding groove (16) are clamped in the arc-shaped guide grooves (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911107496.1A CN110687273A (en) | 2019-11-13 | 2019-11-13 | Device for cutting undisturbed soil sample into cutting ring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911107496.1A CN110687273A (en) | 2019-11-13 | 2019-11-13 | Device for cutting undisturbed soil sample into cutting ring |
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| CN110687273A true CN110687273A (en) | 2020-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911107496.1A Pending CN110687273A (en) | 2019-11-13 | 2019-11-13 | Device for cutting undisturbed soil sample into cutting ring |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557084A (en) * | 2020-12-21 | 2021-03-26 | 河南日兆勘测规划设计有限公司 | Engineering reconnaissance is with segmentation device of portable geotechnique's sample |
| CN114518271A (en) * | 2021-12-28 | 2022-05-20 | 中铁第一勘察设计院集团有限公司 | Undisturbed soil sample preparation device and method for preparing undisturbed soil sample |
| CN117368443A (en) * | 2023-12-07 | 2024-01-09 | 广东汇绿实验室设备科技有限公司 | Multifunctional experimental device for manufacturing and analyzing soil and water chemical soil samples |
-
2019
- 2019-11-13 CN CN201911107496.1A patent/CN110687273A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557084A (en) * | 2020-12-21 | 2021-03-26 | 河南日兆勘测规划设计有限公司 | Engineering reconnaissance is with segmentation device of portable geotechnique's sample |
| CN114518271A (en) * | 2021-12-28 | 2022-05-20 | 中铁第一勘察设计院集团有限公司 | Undisturbed soil sample preparation device and method for preparing undisturbed soil sample |
| CN117368443A (en) * | 2023-12-07 | 2024-01-09 | 广东汇绿实验室设备科技有限公司 | Multifunctional experimental device for manufacturing and analyzing soil and water chemical soil samples |
| CN117368443B (en) * | 2023-12-07 | 2024-02-20 | 广东汇绿实验室设备科技有限公司 | Multifunctional experimental device for manufacturing and analyzing soil and water chemical soil samples |
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Address after: 230088 No. 185 Haitang Road, hi tech Zone, Anhui, Hefei Applicant after: Anhui water resources and Hydropower Survey, design and Research Institute Co., Ltd Applicant after: ANHUI PROVINCIAL GROUP LIMITED FOR YANGTZE-TO-HUAIHE WATER DIVERSION Address before: 230088 No. 185 Haitang Road, hi tech Zone, Anhui, Hefei Applicant before: ANHUI SURVEY AND DESIGN INSTITUTE OF WATER CONSERVANCY AND HYDROPOWER Applicant before: ANHUI PROVINCIAL GROUP LIMITED FOR YANGTZE-TO-HUAIHE WATER DIVERSION |
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