CN105910846B - Soil sampler for testing soil density by ring cutter method - Google Patents
Soil sampler for testing soil density by ring cutter method Download PDFInfo
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- CN105910846B CN105910846B CN201610475778.7A CN201610475778A CN105910846B CN 105910846 B CN105910846 B CN 105910846B CN 201610475778 A CN201610475778 A CN 201610475778A CN 105910846 B CN105910846 B CN 105910846B
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- cylinder body
- cutting ring
- soil
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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
Abstract
The invention discloses a soil sampler for testing soil density by a cutting ring method, which comprises an inner cylinder body, an outer cylinder body sleeved on the outer wall of the inner cylinder body, a connecting structure for connecting the outer cylinder body and the inner cylinder body in a sliding manner, and a cutting ring which is arranged in the outer cylinder body, is positioned below the inner cylinder body and is tightly attached to the inner wall surface of the outer cylinder body on the outer wall surface. When the soil is taken, the inner cylinder body is firstly slid to drive the cutting ring to be completely pressed into the soil, then the outer cylinder body is pressed into the soil and surrounds the outer circumference of the cutting ring, because the outer wall surface of the cutting ring is tightly attached to the inner wall surface of the outer cylinder body, when the outer cylinder body is lifted upwards, the cutting ring and the inner cylinder body can be taken out of the soil together, then the inner cylinder body is slid downwards along the vertical direction, the inner cylinder body pushes the cutting ring out of the outer cylinder body, and the cutting ring is taken away, so that the soil taking process is completed, the whole soil taking process is simplified, and the working efficiency is improved; meanwhile, the cutting ring filled with soil can be directly used as a sample for a soil density test by a cutting ring method.
Description
Technical Field
The invention relates to the technical field of geotechnical tests, in particular to a soil sampler for testing soil density by a cutting ring method.
Background
At present, in a soil density test, the accuracy of a soil density measurement result is mainly determined by sampling and sample treatment, the sampling work of soil is very important, and a soil sampler is usually adopted for soil sampling.
Chinese patent document CN204964231U discloses a soil sampler, which comprises an inner cylinder, an outer cylinder, a handle, a connecting rod, a pedal and a cutting ring. The outer cylinder body is sleeved on the outer wall of the inner cylinder body, the tops of the inner cylinder body and the outer cylinder body are respectively provided with an outwardly extending flange, and the two flanges are connected through a buckle; the handle passes through the connecting rod to be fixed at the top of interior barrel flange, and the running-board is worn to establish on the connecting rod and is located between handle and the interior barrel top, and the cutting edge is down fixed on the bottom of outer barrel.
However, when the soil sampler with the structure is used for soil sampling, acting force is required to be applied to the pedal firstly, so that the inner cylinder and the outer cylinder are integrally inserted into soil, then the soil sampler is taken out of the soil, then the buckle is loosened, the soil sampler is horizontally placed, the inner cylinder is slowly rotated through the handle, the inner cylinder is pulled outwards to obtain a required soil sample, the inner cylinder cannot be rapidly rotated, otherwise, the inner cylinder and the outer cylinder are easily collided, so that the soil sampled by the inner cylinder is scattered, the soil sampling process is difficult to complete, and the whole soil sampling process is also complicated; meanwhile, the taken soil cannot be directly used for a sample of a soil density test by a cutting ring method, and secondary soil taking needs to be carried out in the inner cylinder by using the cutting ring, so that the subsequent test result is inaccurate and the operation is inconvenient.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is that the soil scattering phenomenon is easy to occur in the soil taking process of the soil taking machine in the prior art, and the taken soil cannot be directly used as a sample for testing the soil density by a cutting ring method.
Therefore, the soil sampler for testing soil density by the cutting ring method comprises
An inner cylinder;
the outer cylinder body is sleeved on the outer wall of the inner cylinder body;
the connecting structure is used for connecting the outer cylinder body and the inner cylinder body in a sliding manner;
and the cutting ring is placed in the outer cylinder body and positioned below the inner cylinder body, and the outer wall surface of the cutting ring is tightly attached to the inner wall surface of the outer cylinder body.
The soil sampler for testing soil density by the cutting ring method comprises the connecting structure
The sliding part is fixed on the top of the inner cylinder and used for driving the inner cylinder to slide relative to the outer cylinder;
and the fixing piece is fixed on the outer side wall of the outer cylinder body, extends upwards, penetrates through the sliding piece and serves as a sliding rail of the sliding piece.
In the soil sampler for testing soil density by the circular cutter method, the sliding part comprises a first pedal and at least two connecting columns for fixedly connecting the first pedal with the top of the inner cylinder;
at least two through holes are formed in the first pedal, and the fixing piece penetrates through the through holes.
The fixing part is at least two track rods, the track rods penetrate through the through holes in a one-to-one correspondence mode, the bottom of the track rods is fixed to the outer wall of the outer barrel, and the top of the track rods is connected with the handle.
The soil sampler for testing soil density by the circular cutter method further comprises a limiting piece for limiting the sliding range of the sliding piece on the fixing piece.
In the soil sampler, the limiting member is at least two sections of first threads formed on the outer wall surface of the track rod, and second threads matched with the first threads are arranged in the through hole in the first pedal.
In the soil sampler for testing soil density by the cutting ring method, the inner diameter of the cutting ring is not larger than that of the inner cylinder, and/or the outer diameter of the cutting ring is the same as that of the inner cylinder.
In the soil sampler for testing soil density by the ring cutter method, the outer diameter of the outer cylinder body is gradually increased from the bottom to the top of the outer cylinder body.
In the soil sampler for testing soil density by the cutting ring method, the wall surface of the outer cylinder body is provided with the opening for taking and placing the cutting ring from the inner cylinder body.
In the soil sampler for testing soil density by the circular cutter method, the edge of the bottom of the outer cylinder body is a cutting edge; and/or
At least two second pedals are symmetrically arranged on the outer wall surface of the outer cylinder body.
The technical scheme provided by the invention has the following advantages:
1. the soil sampler for measuring soil density by the cutting ring method comprises an inner cylinder, an outer cylinder sleeved on the outer wall of the inner cylinder, a connecting structure for connecting the outer cylinder and the inner cylinder in a sliding manner, and a cutting ring which is arranged in the outer cylinder and positioned below the inner cylinder, wherein the outer wall surface of the cutting ring is tightly attached to the inner wall surface of the outer cylinder.
According to the soil sampler with the structure, when soil is sampled, the inner cylinder body is firstly slid to drive the cutting ring to be completely pressed into the soil, then the outer cylinder body is pressed into the soil and surrounds the outer circumference of the cutting ring, because the outer wall surface of the cutting ring is tightly attached to the inner wall surface of the outer cylinder body, when the outer cylinder body is lifted upwards, the cutting ring and the inner cylinder body can be taken out of the soil together, then the inner cylinder body is slid downwards along the vertical direction, the inner cylinder body pushes the cutting ring out of the outer cylinder body, and the cutting ring is taken away, so that the soil sampling process is completed, the whole soil sampling process is simplified, and the working efficiency of the soil sampler is improved; meanwhile, the cutting ring filled with soil taken out by the soil taking machine can be directly used as a sample for a soil density test by a cutting ring method.
2. The soil sampler for testing soil density by the circular cutting method provided by the invention has the advantages that the connecting structure comprises the sliding part and the fixing part, and the sliding part is fixed on the top of the inner cylinder body and can drive the inner cylinder body to slide relative to the outer cylinder body; the fixing piece is fixed on the outer side wall of the outer cylinder body and extends upwards to penetrate through the sliding piece to serve as a sliding rail of the sliding piece. The connecting structure of this structure, through wear to establish the slider on the mounting, only need exert the effort to the slider, the slider just can slide on the mounting to the barrel slides for outer barrel in the drive, and then stretches out in the drive cutting ring pressed into soil or from outer barrel.
3. The soil sampler for testing the soil density by the cutting ring method further comprises a limiting piece for limiting the sliding range of the sliding piece on the fixing piece, and the limiting piece is arranged to limit the sliding range of the inner cylinder body relative to the outer cylinder body conveniently so as to limit the moving range of the cutting ring.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of an earth-moving machine for testing soil density by the ring cutter method provided in example 1;
description of reference numerals: 1-inner cylinder; 2-outer cylinder; 3-a slide; 31-a first pedal; 311-a via hole; 32-connecting column; 4-a fixing piece; 5-a limiting part; 6-cutting ring; 7-a second pedal; 8-a handle.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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 description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment provides an earth-taking machine for testing soil density by a cutting ring method, as shown in figure 1, comprising
An inner cylinder 1;
the outer cylinder body 2 is sleeved on the outer wall of the inner cylinder body 1;
the connecting structure is used for connecting the outer cylinder body 2 and the inner cylinder body 1 in a sliding manner;
and the cutting ring 6 is arranged in the outer cylinder body 2 and is positioned below the inner cylinder body 1, and the outer wall surface of the cutting ring is tightly attached to the inner wall surface of the outer cylinder body 2.
According to the soil sampler with the structure, when soil is sampled, the inner cylinder body 1 is firstly slid to drive the cutting ring 6 to be completely pressed into the soil, then the outer cylinder body 2 is pressed into the soil and surrounds the outer circumference of the cutting ring 6, because the outer wall surface of the cutting ring 6 is tightly attached to the inner wall surface of the outer cylinder body 2, when the outer cylinder body 2 is lifted upwards, the cutting ring 6 and the inner cylinder body 1 can be taken out of the soil together, then the inner cylinder body 1 is slid downwards along the vertical direction, the cutting ring 6 is pushed out of the outer cylinder body 2 by the inner cylinder body 1, and the cutting ring 6 is taken away, so that the soil sampling process is completed, the whole soil sampling process is simplified, and the working efficiency of the soil sampler is improved; meanwhile, the cutting ring 6 filled with soil taken out by the soil sampler can be directly used as a sample for a soil density test by a cutting ring method.
As a preferred embodiment, the connecting structure comprises a sliding part 3 and a fixing part 4, wherein the sliding part 3 is fixed on the top of the inner cylinder 1 and used for driving the inner cylinder 1 to slide relative to the outer cylinder 2; the fixing part 4 is fixed on the outer side wall of the outer cylinder 2 and extends upwards, and penetrates through the sliding part 3 to be used as a sliding rail of the sliding part 3.
In this embodiment, by inserting the sliding member 3 into the fixing member 4, only an acting force needs to be applied to the sliding member 3, and the sliding member 3 can slide on the fixing member 4 to drive the inner cylinder 1 to slide relative to the outer cylinder 2, and further drive the cutting ring 6 to be pressed into the soil or extend out of the outer cylinder 2.
Further preferably, the sliding member 3 comprises a first pedal 31, and two connecting posts 32 fixedly connecting the first pedal 31 with the top of the inner cylinder 1; two through holes 311 are opened on the first pedal 31, and the fixing member 4 is inserted into the through holes 311. The first pedal 31 serves as a force acting point for the sliding of the inner cylinder 1, for example, the connecting column 32 can be driven to slide on the fixing member 4 by directly stepping on the first pedal 31 with a foot, so that the inner cylinder 1 slides relative to the outer cylinder 2.
As a variation of the number of the connecting columns 32, the number of the connecting columns 32 can be three, four, five, etc., and only the first pedal 31 needs to be fixedly connected with the top of the inner cylinder 1.
Preferably, the fixing member 4 is two rail rods, the rail rods are respectively inserted into the two through holes 311 of the first pedal 31, the bottom of the rail rods is fixed on the outer wall of the outer cylinder 2, and the top of the rail rods is connected with the handle 8.
In this embodiment, the rail rod is used as a slide rail of the first pedal 31, and under the action of an external force, the first pedal 31 moves up and down along the rail rod to drive the inner cylinder 1 to slide relative to the outer cylinder 2; in addition, the outer cylinder 2 can be pressed into the soil or the outer cylinder 2, the inner cylinder 1 and the cutting ring 6 can be lifted up from the soil as a whole by applying a force to the handle 8.
As a modification, the number of the track rods may be three, four, five, etc., and the track rods are circumferentially disposed on the outer wall surface of the outer cylinder 2, and correspondingly, the number of the through holes 311 on the first pedal 31 is three, four, five, etc. That is, the number of the track bars is identical to the number of the through holes 311, and corresponds to one. Preferably, the rail rod is a steel bar rod or a rod made of another material.
As a further preferred embodiment, the above-mentioned excavator further comprises a stopper 5 for limiting the range in which the slider 3 slides on the fixing member 4. The limiting piece 5 is arranged to limit the sliding range of the inner cylinder body 1 relative to the outer cylinder body 2, and further limit the movement range of the cutting ring 6.
Preferably, the limiting member 5 is a two-stage first screw formed on the outer wall surface of the rail rod, and the through hole 311 of the first pedal 31 has a second screw engaged with the first screw. The two threads define the sliding range of the first pedal 31 on the rail rod, when the first pedal 31 slides upwards to the first threads, the first threads are matched with the second threads to fix the first pedal 31 at the position, so that an upper limit position of the first pedal 31 sliding upwards is defined, and the other first thread serves as a lower limit position of the first pedal 31 sliding downwards.
As a variation of the number of the first thread segments, the number of the first thread segments can be three, four, five, etc., so as to form a multi-segment limiting manner for the sliding range of the first pedal 31, which is convenient for fixing the first pedal 31 on the track rod at different segments as required.
As the deformation of the limiting member 5, the limiting member 5 may also be a plurality of buckles arranged on the track rod, and when the first pedal 31 slides to a desired position, the first pedal 31 is directly locked on the track rod by the buckles; or other locking structures known in the art, or to removably attach devices or equipment.
As the deformation of the connecting structure, the connecting structure can also be other sliding connecting devices in the prior art, and only the sliding connection of the inner cylinder body 1 and the outer cylinder body 2 is needed to be realized, and the inner cylinder body 1 can be provided with the cutting ring 6 to extend out of the outer cylinder body 2.
As a preferred embodiment, the inner diameter of the cutting ring 6 is not greater than the inner diameter of the inner cylinder 1, soil can enter the inner hole of the cutting ring 6 when the cutting ring 6 is pressed into the soil, the bottom of the inner cylinder 1 does not affect the top position of the cutting ring 6 filled with soil, even after the cutting ring 6 is filled with soil, the excess soil enters the inner cylinder 1, thereby ensuring that the inner hole of the cutting ring 6 is filled with the required soil and ensuring the performance of a subsequent soil density test by a cutting ring method.
Preferably, the outer diameter of the cutting ring 6 is the same as that of the inner cylinder 1, so that the inner cylinder 1 can better apply force to the cutting ring 6 to slide together with the cutting ring 6. In addition, it is more preferable that the outer diameter of the cutting ring 6 is slightly smaller than the inner diameter of the outer cylinder 2, so as to facilitate the sliding of the cutting ring 6 in the outer cylinder 2.
It is further preferred that the outer diameter of the outer cylinder 2 is gradually increased from the bottom to the top thereof, so that the inner cylinder 1 and the cutting ring 6 are lifted together when the outer cylinder 2 is lifted from the soil.
In a more preferred embodiment, the outer cylinder 2 has an opening in the wall thereof for removing the cutting ring 6 from the outer cylinder 2. Before borrowing soil, with interior barrel 1 upwards sliding, put into outer barrel 2 with cutting ring 6 through this opening part in, again with interior barrel 1 downwards sliding and then drive cutting ring 6 and press into in the soil, after being full of soil in cutting ring 6, mention outer barrel 2, interior barrel 1 and cutting ring 6 together from the soil, come out the geotome, upwards slide interior barrel 1 again for the bottom of inner tube is higher than the open-ended top, directly takes out cutting ring 6 through this opening, further simplifies the process of taking out cutting ring 6. Preferably, the size of the opening is larger than the size of the ring knife 6.
Further, the lower limit position preferably corresponds to a position where the inner cylinder 1 just pushes the cutting ring 6 out of the bottom opening of the outer cylinder 2, and the upper limit position preferably corresponds to a position where the bottom of the inner cylinder 1 just exceeds the top opening of the wall surface of the outer cylinder 2.
In a preferred embodiment, the bottom edge of the outer cylinder 2 is a knife edge to facilitate pressing the outer cylinder 2 into the soil. In addition, it is more preferable that at least two second steps 7 are symmetrically provided on the outer wall surface of the outer cylinder 2. When the outer cylinder 2 is pressed into the soil, the outer cylinder 2 can be pressed into the soil by directly stepping on the second pedal 7 by a human foot. Alternatively, the outer cylinder 2 may be pressed into the ground by applying force to both the handle 8 and the second pedal 7.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (8)
1. A soil sampler for testing soil density by a cutting ring method is characterized by comprising
An inner cylinder (1);
the outer cylinder body (2) is sleeved on the outer wall of the inner cylinder body (1);
the connecting structure is used for connecting the outer cylinder body (2) and the inner cylinder body (1) in a sliding manner;
the cutting ring (6) is placed in the outer cylinder body and positioned below the inner cylinder body (1), and the outer wall surface of the cutting ring is tightly attached to the inner wall surface of the outer cylinder body; one end of the cutting ring facing the inner cylinder body is suitable for abutting against one end of the inner cylinder body facing the cutting ring;
when the soil is taken out, the inner cylinder body is firstly slid to drive the cutting ring to be completely pressed into the soil, then the outer cylinder body is pressed into the soil and surrounds the outer circumference of the cutting ring, because the outer wall surface of the cutting ring is tightly attached to the inner wall surface of the outer cylinder body, when the outer cylinder body is lifted upwards, the cutting ring and the inner cylinder body can be taken out of the soil together, then the inner cylinder body is slid downwards along the vertical direction, the inner cylinder body pushes the cutting ring out of the outer cylinder body, and the cutting ring is taken away, thus completing the soil taking process;
the inner diameter of the cutting ring (6) is not more than that of the inner cylinder body (1);
the outer diameter of the outer cylinder (2) is gradually increased from the bottom to the top thereof;
the connection structure includes:
the sliding part (3) is fixed on the top of the inner cylinder body (1) and is used for driving the inner cylinder body (1) to slide relative to the outer cylinder body (2);
and the fixing piece (4) is fixed on the outer side wall of the outer barrel (2), extends upwards, penetrates through the sliding piece (3) and serves as a sliding rail of the sliding piece (3).
2. The soil sampler for testing soil density by the cutting ring method according to claim 1, wherein: the sliding piece (3) comprises a first pedal (31) and at least two connecting columns (32) which are used for fixedly connecting the first pedal (31) with the top of the inner cylinder (1);
at least two through holes (311) are formed in the first pedal (31), and the fixing piece (4) penetrates through the through holes (311).
3. The soil sampler for testing soil density by the cutting ring method according to claim 2, wherein: the fixing piece (4) is at least two rail rods, the rail rods penetrate through the through holes (311) in a one-to-one correspondence mode, the bottom of the rail rods is fixed to the outer wall of the outer barrel body (2), and the top of the rail rods is connected with a handle (42).
4. The earth-moving machine for testing soil density by the cutting ring method according to claim 3, characterized in that: the sliding piece (3) is characterized by further comprising a limiting piece (5) used for limiting the range of the sliding piece (3) sliding on the fixing piece (4).
5. The soil sampler for testing soil density by the cutting ring method according to claim 4, wherein: the limiting piece (5) is at least two sections of first threads formed on the outer wall surface of the track rod, and second threads matched with the first threads are arranged in a through hole (311) in the first pedal (31).
6. The earth borrowing machine for testing soil density by the circular knife method according to any one of claims 1 to 3, wherein: the outer diameter of the cutting ring (6) is the same as that of the inner cylinder body (1).
7. The earth borrowing machine for testing soil density by the circular knife method according to any one of claims 1 to 3, wherein: an opening is formed in the wall surface of the outer cylinder body (2) and used for taking and placing the cutting ring (6) from the outer cylinder body (2).
8. The earth borrowing machine for testing soil density by the circular knife method according to any one of claims 1 to 3, wherein: the bottom edge of the outer cylinder (2) is a knife edge; and/or
At least two second pedals (7) are symmetrically arranged on the outer wall surface of the outer cylinder body (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610475778.7A CN105910846B (en) | 2016-06-24 | 2016-06-24 | Soil sampler for testing soil density by ring cutter method |
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| CN201610475778.7A CN105910846B (en) | 2016-06-24 | 2016-06-24 | Soil sampler for testing soil density by ring cutter method |
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| CN105910846B true CN105910846B (en) | 2020-02-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109387391B (en) * | 2017-08-14 | 2023-06-23 | 德州市公路工程总公司 | Reverse-hanging soil sampler |
| CN113203659A (en) * | 2021-04-30 | 2021-08-03 | 中交第四航务工程局有限公司 | Method for detecting compaction degree of dry-pressed aeolian sand roadbed by water immersion ring cutting method |
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