Compaction degree detection sample preparation device

Abstract

The utility model belongs to the technical field of sample preparation devices, and particularly relates to a compaction degree detection sample preparation device which comprises a shell and a soil sampling assembly, a containing cavity used for containing a cutting ring is formed in the shell, and a soil sample is arranged in the cutting ring; the soil sampling assembly is inserted into the shell and is in sliding connection with the shell, the soil sampling assembly comprises a soil sampling cutter and a bulldozing device, a sampling through hole is formed in the soil sampling cutter, the soil sampling cutter can move in the axial direction and is inserted into the cutting ring, and the bulldozing device is arranged in the sampling through hole and can move in the axial direction. According to the utility model, the soil sampling knife is arranged to take a soil sample in the cutting ring and is matched with the bulldozer to push out the sample soil sampled in the sampling through hole, the sample preparation device is simple in structure and principle, the soil sample with the quality meeting the standard requirement is prepared through one-time insertion and one-time pushing, the manual operation is obviously reduced, the dependence on the skill level of an operator is reduced, and the sample preparation efficiency is improved; the cutting precision and the stability of a sample preparation result can be improved, waste soil is reduced, and the sample preparation quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sample preparation device, especially to compaction degree detection sample preparation device. BACKGROUND

[0002] Earthwork backfill operation is an indispensable construction link in construction engineering projects, and its construction quality has a direct impact on the final completion acceptance and subsequent operation and maintenance cost of the engineering project. Compaction degree, as a core technical index to measure the quality of earthwork backfill, its detection process usually includes two steps of field sampling and indoor sample preparation detection. Among many compaction degree detection methods, the cutting ring method has become the most popular and widely used detection method due to its convenience of field sampling and high detection efficiency.

[0003] However, there are still many challenges in the indoor sample preparation stage. The current mainstream operation mode relies on a soil knife for manual sample preparation, and the specific process includes: (1) carefully extracting the soil sample from the cutting ring; (2) removing the surface layer of the soil sample (the area that does not meet the requirements due to unstable water content); (3) gradually cutting until the weight of the soil sample meets the specification requirements.

[0004] The defects of this manual sample preparation method are summarized as follows:

[0005] (1) The operation process is complicated, the overall operation intensity is large, and the time consumption is long;

[0006] (2) Highly dependent on the skill level and proficiency of the operator, and the human factor has a significant impact;

[0007] (3) The soil sample often needs to be cut several times to meet the specified quality standards, increasing the operation complexity;

[0008] (4) Frequent cutting leads to waste soil scattering, which not only increases material waste, but also brings additional burden to indoor site hygiene management. INVENTION CONTENTS

[0009] The technical problem to be solved by the utility model is: in order to solve the technical problems existing in the prior art, the utility model provides a compaction degree detection sample preparation device, which reduces the dependence on the skill level of the operator, improves the sample preparation efficiency and quality, reduces the generation of waste soil, and reduces material waste and hygiene burden.

[0010] The technical scheme adopted by the utility model to solve its technical problem is: a compaction degree detection sample preparation device, comprising: a shell, a containing cavity for containing a cutting ring is formed in the shell, and a soil sample is arranged in the cutting ring.

[0011] The soil taking assembly is inserted into the shell and in sliding connection with the shell, and comprises a soil taking knife and a soil pusher, the soil taking knife is internally provided with a sampling through hole, the soil taking knife is axially movable and inserted into the ring knife, and the soil pusher is arranged in the sampling through hole and axially movable.

[0012] The specific technical effect is that the soil sample in the ring knife is taken by the soil taking knife which meets the sampling quality requirements of the specification, the soil sample can be directly penetrated, the soil sample does not need to be trimmed in advance, and the sample soil in the sampling through hole is pushed out by the soil pusher, the sampling device has simple structure and principle, the soil sample meeting the sampling quality requirements of the specification is obtained by one insertion and one pushing, manual operation is significantly reduced, the dependence on the skill level of the operator is reduced, the sampling efficiency is improved, the cutting accuracy and the stability of the sampling result are improved, the waste soil is reduced, and the sampling quality is improved.

[0013] Further, the number of the soil taking knives is two, and the two soil taking knives are arranged in parallel.

[0014] The specific technical effect is that two parallel samples can be obtained by the same operator under the same operation condition by using the parallel determination method, and the operation steps and workload are reduced, the main purpose of the method is to reduce random error and improve the accuracy and reliability of the measurement result.

[0015] Further, an axial groove is arranged on the outer wall of the soil taking knife, the groove extends to the outer wall of the soil taking knife to the sampling through hole, a part of the soil pusher is arranged in the sampling through hole, and another part of the soil pusher passes through the groove in the radial direction.

[0016] The specific technical effect is that the soil pusher can move in the groove, and the sample soil obtained in the sampling through hole can be conveniently pushed out.

[0017] Further, the soil pusher comprises a soil pushing piece and a clamping shaft, the soil pushing piece is arranged in the sampling through hole, one end of the clamping shaft is connected with the soil pushing piece, and the other end of the clamping shaft passes through the groove in the radial direction.

[0018] The specific technical effect is that the soil pushing piece is responsible for pushing the sample soil in the sampling through hole to realize the pushing out of the sample soil, and the clamping shaft is responsible for connecting the soil pushing piece and passing through the groove to provide a lever point or a connecting point for operating the soil pushing piece, and also ensures that the soil pusher can be stably installed on the soil taking knife.

[0019] Further, the number of the grooves is two, and the two grooves are oppositely arranged on the outer wall of the soil taking knife.

[0020] The specific technical effect is that the two knife grooves are designed in a relative arrangement, improving the accuracy and stability of the pushed sample.

[0021] Further, a guide groove is formed on the shell and communicates with the accommodating cavity, and the soil cutter is slidingly arranged in the guide groove.

[0022] The specific technical effect is that the stable advancement of the soil cutter is ensured.

[0023] Further, the soil sampling assembly further comprises a handle arranged on the end of the soil cutter away from the ring cutter.

[0024] The specific technical effect is that the handle is easy to hold, and the movement of the soil cutter, including advancement, stopping and withdrawal, can be more easily controlled, so that the sampling process is more intuitive and controllable, and the operation difficulty is reduced.

[0025] Further, the upper end of the handle is radially outwardly protruded to form a boss.

[0026] The specific technical effect is that the boss serves as a limiting device and is clamped against the guide groove to form a limit, preventing the soil cutter from being excessively pressed down during advancement, and the thickness of the boss can be designed according to the sampling depth to limit the pressing depth of the soil cutter, which helps to ensure the consistency of the sampling depth each time and improve the sampling accuracy.

[0027] Further, a base is further included, and the base is used for bearing the ring cutter and the soil sample, and the shell is detachably arranged on the base.

[0028] The specific technical effect is that the base has the effects of enhancing the stability, facilitating the operation, and being easy to clean and maintain in the soil sampling assembly.

[0029] Further, the diameter of the sampling through hole is 2.5±0.5 cm.

[0030] The specific technical effect is that the diameter of the sampling through hole is set according to the sampling requirement to ensure that the sampling quality meets the specification requirement.

[0031] Compared with the prior art, the utility model has the beneficial effects that:

[0032] The soil sample in the ring cutter is taken by the soil cutter with the sampling quality meeting the specification requirement, the entire soil sample can be directly penetrated, the soil sample does not need to be trimmed in advance, the sample soil in the sampling through hole is pushed out by the soil pusher, the sampling device has a simple structure and principle, the soil sample with the sampling quality meeting the specification requirement is obtained by one insertion and one pushing, manual operation is significantly reduced, the dependence on the skill level of the operator is reduced, the sampling efficiency is improved, the cutting accuracy and the stability of the sampling result are improved, the waste soil generation is reduced, and the sampling quality is improved. Attached Figure Description

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0034] Fig. 1 This is a schematic diagram of the internal structure of the compaction degree testing sample preparation device of this utility model;

[0035] Fig. 2 This is a schematic diagram of the internal structure of the soil-taking knife of this utility model;

[0036] Fig. 3 This is a schematic diagram of the structure of the bulldozer of this utility model.

[0037] In the diagram: 1. Shell; 101. Guide groove; 2. Soil sampling assembly; 201. Soil sampling knife; 202. Bulldozer; 203. Knife groove; 204. Bulldozer blade; 205. Shaft retainer; 206. Handle; 207. Boss; 208. Sampling through hole; 3. Ring cutter; 4. Soil sample; 5. Base. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0039] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "installation", "connection" should be broad sense understanding, for example, it can be fixed connection, also can be detachable connection, or integrally connected, it can be mechanical connection, also can be electrical connection, it can be direct connection, also can be indirectly connected through intermediate medium, it can be two elements inside the communication, for ordinary skilled in the art, the above-mentioned term can be understood in the utility model with the specific meaning of the specific situation.

[0041] Embodiment 1:

[0042] As Figs. 1 to 3 The utility model preferred embodiment, the compaction degree detection sampling device of this embodiment, including casing 1 and take soil subassembly 2, the accommodating cavity for accommodating ring cutter 3 is formed in casing 1, and the soil sample 4 is arranged in ring cutter 3;Take soil subassembly 2 inserts into casing 1, and with casing 1 sliding connection, take soil subassembly 2 includes soil cutter 201 and bulldozer 202, and the sampling through-hole 208 is opened in the inside of soil cutter 201, and soil cutter 201 can be inserted into ring cutter 3 along the axial movement, and bulldozer 202 is arranged in sampling through-hole 208 and can move along the axial movement.

[0043] Therefore: through the soil cutter 201 of the sampling quality meeting the specification requirement is set to take the soil sample 4 in ring cutter 3, can directly penetrate the whole soil sample 4, need not in advance soil sample 4 trimming, and cooperate bulldozer 202 and push out the sample soil in sampling through-hole 208, the sampling device structure is simple, and the principle is simple, and the quality of soil sample 4 meeting the specification requirement is obtained by one insertion and one push, significantly reduces manual operation, reduces the dependence on the skill level of operating personnel, improves sampling efficiency, can improve cutting accuracy and the stability of sampling result, reduces waste soil production, improves sampling quality.

[0044] In the embodiment, the number of soil cutter 201 is two, and the two soil cutters 201 are arranged in parallel.

[0045] Therefore: using the experimental method of parallel determination, two parallel samples can be obtained by the same operator under the same operating conditions, which reduces the operation steps and workload, and the main purpose of this method is to reduce random error and improve the accuracy and reliability of the measurement result.

[0046] In the embodiment, the outer wall of the soil cutter 201 is provided with a cutter groove 203 extending axially, the cutter groove 203 extends to the sampling through-hole 208 from the outer wall of the soil cutter 201, a part of the bulldozer 202 is arranged in the sampling through-hole 208, and another part of the bulldozer 202 passes through the cutter groove 203 radially.

[0047] Therefore, the blade groove 203 is arranged so that the earth mover 202 can move in the blade groove 203, thereby facilitating the pushing out of the sample soil obtained in the sampling through hole 208.

[0048] In this embodiment, the earth mover 202 comprises an earth pushing piece 204 arranged in the sampling through hole 208 and a clamping shaft 205, one end of which is connected with the earth pushing piece 204, and the other end of which penetrates the blade groove 203 in the radial direction.

[0049] Therefore, the earth pushing piece 204 is responsible for pushing the sample soil in the sampling through hole 208 to achieve the pushing out of the sample soil, and the clamping shaft 205 is responsible for connecting the earth pushing piece 204 and penetrating the blade groove 203 to provide a lever point or connecting point for operating the earth pushing piece 204, while also ensuring that the earth mover 202 can be stably installed on the soil cutter 201.

[0050] In this embodiment, the number of blade grooves 203 is two, and the two blade grooves 203 are oppositely arranged on the outer wall of the soil cutter 201.

[0051] Therefore, the two blade grooves 203 are oppositely arranged to improve the accuracy and stability of the pushed sample.

[0052] In this embodiment, a guide groove 101 is formed on the shell 1, the guide groove 101 is arranged in communication with the accommodating cavity, and the soil cutter 201 is slidingly arranged in the guide groove 101.

[0053] Therefore, the stable advancement of the soil cutter 201 can be ensured.

[0054] In this embodiment, the soil taking assembly 2 further comprises a handle 206 arranged on the end of the soil cutter 201 away from the ring cutter 3.

[0055] Therefore, it is easy to hold and control the movement of the soil cutter 201, including advancing, stopping and withdrawing, etc., so that the sampling process is more intuitive and controllable, and the operation difficulty is reduced.

[0056] In this embodiment, the upper end of the handle 206 is radially outwardly protruded to form a boss 207.

[0057] Therefore, the boss 207 serves as a limiting device, which is clamped against the mouth of the guide groove 101 to form a limit, preventing the soil cutter 201 from being excessively pressed down during the advancement, and the thickness of the boss 207 can be designed according to the sampling depth to limit the pressing depth of the soil cutter 201, which helps to ensure the consistency of the sampling depth each time and improve the sampling accuracy.

[0058] In this embodiment, a base 5 is further included, which is used to carry the ring cutter 3 and the soil sample 4, and the shell 1 is detachably arranged on the base 5.

[0059] Therefore, the base 5 has the effects of enhancing stability, facilitating operation, and facilitating cleaning and maintenance in the soil taking assembly 2.

[0060] In the embodiment, the diameter of the sampling through hole 208 is 2.5±0.5 cm.

[0061] Therefore, the diameter of the sampling through hole 208 is set according to sampling requirements, so as to ensure that the sample quality meets the specification requirements.

[0062] In the embodiment, the specific sample preparation operation steps are as follows:

[0063] S1. The soil sample 4 is obtained by the ring knife 3 method on site, and the soil sample 4 and the ring knife 3 are placed on the base 5 together;

[0064] S2. The shell 1 is placed on the base 5, so that the soil sample 4 and the ring knife 3 are in the accommodating cavity;

[0065] S3. The soil taking knife 201 passes through the guide groove 101, and the handle 206 is pressed down, so that the soil taking knife 201 passes through the entire soil sample 4;

[0066] S4. The soil taking knife 201 is pulled out, and the sampling through hole 208 has the test sample soil at this time, the soil pusher 202 is pushed to the upper end of the knife groove 203 by the test sample soil, the soil pusher 202 is moved downward along the knife groove 203, the soil pushing piece 204 pushes the test sample soil in the sampling through hole 208, and then the test sample soil is taken out;

[0067] S5. The test sample soil is subjected to subsequent weighing, drying and other detection operations.

[0068] The above is only a preferred embodiment of the utility model, and does not limit the implementation mode and protection scope of the utility model.

[0069] The utility model has the following implementation modes on the basis of the above:

[0070] An embodiment 2 not shown in the figure:

[0071] The difference from the embodiment 1 is that:

[0072] The soil pusher 202 is a push rod, the push rod is square, and the push rod penetrates from one knife groove 203 to another knife groove 203.

[0073] Compared with the prior art, the utility model has the beneficial effects that:

[0074] The soil sample 4 in the cutting ring 3 is taken by setting the soil cutter 201 which meets the sampling quality requirements of the specification, which can directly penetrate the entire soil sample 4, and does not need to be trimmed in advance, and the sample soil in the sampling through hole 208 is pushed out by cooperating with the soil pusher 202, the sampling device has simple structure and simple principle, the soil sample 4 meeting the specification requirements is obtained by one insertion and one pushing, manual operation is significantly reduced, the dependence on the skill level of the operator is reduced, the sampling efficiency is improved, the cutting accuracy and the stability of the sampling result can be improved, the waste soil is reduced, and the sampling quality is improved.

[0075] The above-mentioned ideal embodiments of the present application are for inspiration, and through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the present application. The technical scope of the present application is not limited to the content of the specification, and must be determined by the scope of the claims.

Claims

1. A compaction degree detection sample preparation device characterized by comprising: Include: The shell (1) is formed with a cavity for accommodating the ring knife (3), and the soil sample (4) is arranged in the ring knife (3); The soil taking assembly (2) is inserted into the shell (1) and is in sliding connection with the shell (1), the soil taking assembly (2) includes a soil taking knife (201) and a soil pusher (202), the soil taking knife (201) is internally provided with a sampling through hole (208), the soil taking knife (201) can be axially moved and inserted into the ring knife (3), and the soil pusher (202) is arranged in the sampling through hole (208) and can be axially moved.

2. The compactness detection and sample preparation device of claim 1, wherein The number of the soil taking knives (201) is two, and the two soil taking knives (201) are arranged in parallel.

3. The compactness detection and sample preparation device of claim 1, wherein An axial knife groove (203) is formed in the outer wall of the soil taking knife (201), the knife groove (203) extends to the outer wall of the soil taking knife (201) to the sampling through hole (208), a part of the soil pusher (202) is arranged in the sampling through hole (208), and another part of the soil pusher (202) passes through the knife groove (203) in the radial direction.

4. The compactness detection and sample preparation device of claim 3, wherein The soil pusher (202) includes a soil pushing piece (204) and a clamping shaft (205), the soil pushing piece (204) is arranged in the sampling through hole (208), one end of the clamping shaft (205) is connected with the soil pushing piece (204), and the other end of the clamping shaft (205) passes through the knife groove (203) in the radial direction.

5. The compactness detection and sample preparation device of claim 3, wherein The number of the knife grooves (203) is two, and the two knife grooves (203) are oppositely arranged on the outer wall of the soil taking knife (201).

6. The compactness detection and sample preparation device of claim 1, wherein A guide groove (101) is formed in the shell (1), the guide groove (101) is in communication with the cavity, and the soil taking knife (201) is slidably arranged in the guide groove (101).

7. The compactness detection and sample preparation device of claim 1, wherein The soil taking assembly (2) further includes a handle (206), and the handle (206) is arranged on one end of the soil taking knife (201) away from the ring knife (3).

8. The compactness detection and sample preparation device of claim 7, wherein, The upper end of the handle (206) is outwardly protruded in the radial direction to form a boss (207).

9. The compactness detection and sample preparation device of claim 1, wherein Further include a base (5) for carrying the ring knife (3) and the soil sample (4), and the shell (1) is detachably arranged on the base (5).

10. The compactness detection and sample preparation device of claim 1, wherein The diameter of the sampling through hole (208) ranges from 2.5 cm to 0.5 cm.

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