Integrated screening device for screening granularity of soil sample

Abstract

The present invention provides an integrated screening device for screening the particle size of a soil sample, which can reduce the inconvenience of screening by grasping the screen with one hand and grasping the brush with the other hand by connecting the screen and the collector to form an integrated detachable structure when wet screening is performed. And the screening operation and the collecting operation according to granularity are extremely easy. The integrated screening device for screening the particle size of a soil sample according to the present invention comprises: a particle size screening unit which is provided with at least one screen and which screens and throws the input soil sample according to the particle size; one side surface of the cylindrical main body outer cover is in an open state, and the cylindrical main body outer cover is detachably combined with the inner side surface in the opening direction of the particle size screening part; the sample receiving part is arranged at the lower part of the grain size screening part of the main body outer cover and is used for collecting soil and water which are screened by the sieve and discharged to the lower part of the grain size screening part; and a water supply part which is installed at an input port formed at the upper end of the main body outer cover and is used for supplying water into the particle size screening part.

Description

Technical Field

[0001] The present invention relates to a wet sieving device, and more particularly, to an integrated sieving device for screening the particle size of soil samples, which can easily perform sieving operations and collection operations according to particle size through wet sieving. Background Art

[0002] As soil particles become smaller, their chemical reactivity increases, and when present with water, their mobility through mudflow phenomena increases, so soil particles exhibit different physical and chemical properties depending on their size. For this reason, it is necessary to separate soil particles by size.

[0003] For example, when decontaminating soil pollutants, the pollution distribution changes with particle size, so the optimal decontamination method is performed according to the particle size. Also, when creating a geochemical map, particles of a specific size in river sediments should be sampled and analyzed.

[0004] In order to separate soil by particle size, a particle size screening device is used. Existing particle size screening devices are mainly large-capacity and complex equipment that is operated only by power. They are suitable for screening a small amount of samples, and devices with excellent mobility and portability have not yet been developed.

[0005] Therefore, when a portion of the sample is screened without external power, a sieve of appropriate size is repeatedly shaken. However, in this case, it is accompanied by high-intensity labor, making it difficult to work for a long time, and because the work is performed in an open system, there is a problem that particles of an unnecessary size may be mixed in as impurities.

[0006] In this regard, as described above, when creating a geochemical map or when moving to multiple areas and examining samples, it is necessary to use a small-scale and highly portable force screening device.

[0007] However, conventional wet-sieving uses a general sieve for particle size separation of soil samples. The diameter of the sieve used is 7.5 cm, and all meshes of the sieve are divided into different sizes, so that a sieve having a mesh size that matches the desired sediment particle size needs to be selected and used separately.

[0008] In particular, when wet-sieving is performed, a brush or bristle brush is required to sufficiently loosen the agglomerated sediment, and distilled water needs to be continuously supplied to the sediment. In this case, a coarse particle sample remaining on the sieve is finally taken and the fine particles passing through the sieve are directly discharged.

[0009] Also, when screening highly viscous sediments, a brush or brush is used to loosen the agglomerated sediments, and distilled water needs to be continuously supplied to the sediments.

[0010] In this case, the problem is that it is necessary to hold the sieve with one hand and loosen the sediment with the other hand, but the distilled water in the distilled water bottle cannot be continuously supplied, so the sieve or brush needs to be temporarily placed on the ground and distilled water needs to be sprayed, which causes the problem of contamination or loss of the sample.

[0011] Furthermore, when both the coarse-grained sediment remaining on the sieve and the fine-grained sediment passing through the sieve are recovered, a beaker needs to be placed under the sieve, but the beaker and the sieve are not in a fixed state, so there is a problem that a large amount of sediment may be lost during the screening process.

[0012] Prior art literature

[0013] Patent Literature

[0014] Patent Document 1: Korean Patent Publication No. 10-2016-0004425 (Publication Date: January 13, 2016)

[0015] Patent Document 2: Korean Patent Gazette No. 10-1517614 (Grant Date: April 28, 2015) Summary of the invention

[0016] The object of the present invention for solving the above-mentioned existing problems is to provide an integrated screening device for screening the particle size of soil samples. When wet-sieving is performed, the sieve and the collector are connected to each other to form an integrated detachable structure, thereby reducing the inconvenience of having to hold the sieve with one hand and the brush with the other hand for screening. In addition, the screening and collecting operations according to the particle size are extremely easy.

[0017] Furthermore, the object of the present invention is to provide an integrated screening device for screening the particle size of soil samples, which can provide an angle adjustment and a detachable structure of the sieve, so that after the screening is completed, the sieve is fully tilted to collect the sediment separated on the sieve without loss. When the collection is completed, it is disassembled and cleaned, thereby effectively performing the screening operation and making preparation and cleaning extremely easy.

[0018] In order to achieve the above-mentioned purpose, the integrated screening device for screening the particle size of soil samples of the present invention is characterized in that it includes: a particle size screening part, which is equipped with at least one sieve, and screens the input soil sample according to the particle size and drops it; a cylindrical main body outer cover, one side of which is in an open state, and the above-mentioned particle size screening part is combined with the inner side surface in a disassembled manner in the open direction; a sample receiving part, which is installed at the lower part of the particle size screening part of the above-mentioned main body outer cover, and is used to collect soil and water that are screened by the above-mentioned sieve and discharged to the bottom of the above-mentioned particle size screening part; and a water supply part, which is installed at the inlet formed at the upper end of the above-mentioned main body outer cover, and is used to supply water to the inside of the above-mentioned particle size screening part.

[0019] Furthermore, the integrated screening device for screening the particle size of soil samples of the present invention is characterized in that the particle size screening part includes: an annular frame; and a sieve, including an elliptical mesh for sieving the soil sample installed on the inner bottom of the annular frame, and the sieve is a single-layer structure or a multi-layer stacked structure.

[0020] Furthermore, the integrated screening device for screening the particle size of soil samples of the present invention is characterized in that the protrusions formed on both sides of the inner side surface of the main body outer cover are combined with the grooves formed on both sides of the outer side surface of the particle size screening part, so that the particle size screening part can rotate at a preset angle.

[0021] Furthermore, the integrated screening device for screening the particle size of soil samples of the present invention is characterized in that the sample receiving part is formed of a transparent or translucent material.

[0022] Furthermore, the integrated screening device for screening the particle size of soil samples of the present invention is characterized in that the water supply part includes: a water regulating part, installed at the above-mentioned inlet, for adjusting the intensity, supply amount and dispersion of the water flow injected; and a water bucket part, for storing water, the inlet of which is installed at the upper end of the above-mentioned water regulating part.

[0023] Furthermore, the integrated screening device for screening the particle size of soil samples of the present invention is characterized in that, in the above-mentioned water regulating part, two or more disc-shaped injection pipes with multiple through holes of different sizes are combined, and the size of the water through holes can be adjusted by rotating one injection pipe.

[0024] Furthermore, the integrated screening device for screening the particle size of soil samples of the present invention is characterized in that protrusions are provided on both inner side surfaces on a horizontal line of the open side of the above-mentioned main body outer cover, and fastening grooves are provided on both outer side surfaces of the above-mentioned particle size screening part in a manner corresponding to the above-mentioned protrusions on both sides, and the above-mentioned protrusions are inserted into the above-mentioned fastening grooves and fastened in a rotatable manner.

[0025] Furthermore, the integrated screening device for screening the particle size of soil samples of the present invention is characterized in that the particle size screening part is in the shape of an elliptical disk extending along the length direction of both sides connected to the main body cover.

[0026] Furthermore, the integrated screening device for screening the particle size of soil samples of the present invention is characterized in that a linear locking groove is formed at the upper end of the protrusion along the peripheral surface of the inner side surface of the main body outer cover so that the lower corner is locked and fastened when the particle size screening part rotates.

[0027] Furthermore, the integrated screening device for screening the particle size of soil samples of the present invention is characterized in that the particle size screening part is formed by stacking sieves of different sizes, and the mesh size of the sieves gradually decreases toward the bottom.

[0028] Specific matters of other embodiments are included in the “Detailed Description” and “Drawings”.

[0029] The advantages and / or features of the present invention and the methods for achieving these will be described with reference to the accompanying drawings. Figure 1 This will become more apparent with reference to various embodiments described in detail later.

[0030] However, the present invention is not limited to the structures of the embodiments disclosed below, but can be embodied in a variety of different forms. Only the embodiments disclosed in this specification make the disclosure of the present invention complete and are provided to inform ordinary technicians in the technical field to which the present invention belongs of the full scope of the present invention. The present invention should be defined by the scope of the invention protection claims.

[0031] According to the present invention, the present invention has the following advantages: the user can change the sieve into a sieve of other mesh sizes according to the requirements, and moreover, the present invention has a structure in which sieves of different mesh sizes are stacked, so that the soil sample can be easily screened according to the particle size. Therefore, it can be used for various purposes according to various soil types and specific particle size requirements.

[0032] Furthermore, according to the present invention, the present invention has the following advantages: the user can directly approach the sieve, so that the sieving process can be directly monitored and managed, the sieve and the beaker-shaped collector can be separated, so that the cleaning process is simple, and the parts can be replaced or exchanged according to the requirements of the sieving process.

[0033] Furthermore, according to the present invention, the rotatable sieve design promotes more dynamic screening, allowing the soil sample to move on the sieve surface, thereby increasing the possibility of small particles passing through.

[0034] Furthermore, according to the present invention, the inclined structure of the screen helps users to easily perform brushing work, and in particular, when processing sticky or clay soil, it can help remove soil particles and improve the screening process.

[0035] Furthermore, according to the present invention, the present invention has the following advantages: as an integrated structure, a wet screening device is combined, thereby further simplifying the overall process, and there is no need to assemble or constitute a variety of structural elements.

[0036] Furthermore, according to the present invention, the amount of water supplied to the soil sample and the pressure can be adjusted, thereby improving the wet sieving efficiency. Furthermore, wet sieving is particularly useful for samples that are prone to agglomeration or particles that are difficult to sieve under dry conditions.

[0037] Furthermore, according to the present invention, sample loss is minimized and a beaker-type collector or sample receiving portion is used, whereby the sieved sample can be effectively oriented and collected, thereby reducing the possibility of sample loss or leakage.

[0038] As described above, the integrated screening device for screening the particle size of soil samples according to the embodiment of the present invention provides a harmonious balance between functionality, effectiveness and ease of use, and simplifies the screening process, thereby ensuring consistent results. Therefore, the present invention is a very useful device in soil analysis and similar application fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 The invention is an exploded perspective view of an integrated screening device for screening the particle size of a soil sample.

[0040] Figure 2 It is a combined three-dimensional diagram of an integrated screening device for screening the particle size of soil samples according to an embodiment of the present invention.

[0041] Figure 3 The figure shows a laminated particle size screening part of an integrated screening device for screening the particle size of a soil sample applicable to an embodiment of the present invention.

[0042] Figure 4 The figure shows various meshes of a laminated particle size screening part of an integrated screening device for screening the particle size of a soil sample according to an embodiment of the present invention.

[0043] Figure 5 It is a side view of an integrated screening device for screening the particle size of soil samples according to an embodiment of the present invention.

[0044] Description of Reference Numerals

[0045] 100: Main body cover

[0046] 115: Protrusion

[0047] 135: Locking slot

[0048] 200: Particle size screening department

[0049] 210: Ring frame

[0050] 215: Groove

[0051] 230: Screen

[0052] 300: Sample receiving department

[0053] 400: Water Supply Department

[0054] 410: Water regulation department

[0055] 420: Bucket Department DETAILED DESCRIPTION

[0056] Before explaining the present invention in detail, the terms or words used in this specification do not have to be limited to the usual or dictionary meanings. The inventors of the present invention may appropriately define the concepts of various terms for use in order to explain their method in the most preferred way. Furthermore, the meanings of these terms or words should be consistent with the meanings and concepts of the technical ideas of the present invention.

[0057] That is, the terms used in this specification are for explaining the preferred embodiments of the present invention rather than specifically limiting the contents of the present invention, and these terms are defined in consideration of various functionalities of the present invention.

[0058] Also, in this specification, unless clearly indicated otherwise in the context, an expression in the singular may include an expression in the plural, and similarly, even if expressed in the plural, it may include a singular meaning.

[0059] Throughout the specification, when it is described that a structural element “includes” other structural elements, unless there is a special description to the contrary, it may mean that any other structural elements may also be included, and does not mean that other structural elements are excluded.

[0060] Furthermore, when a structural element is recorded as existing "inside" or "connected to" other structural elements, the structural element may be directly connected or in contact with the other structural elements, or may be separated from the other structural elements by a specified distance. In the case of being separated from the other structural elements by a specified distance, there may be a third structural element or unit that fixes or connects the corresponding structural element to the other structural elements, and the description of the third structural element or unit may be omitted.

[0061] In contrast, when it is described that a structural element is “directly connected to” or “directly coupled to” another structural element, it should be understood that there is no third structural element or unit.

[0062] Similarly, other expressions describing the relationship between structural elements, that is, "between" and "just between" or "adjacent to" and "directly adjacent to" etc. should also be interpreted as having the same subject matter.

[0063] Furthermore, in this specification, when terms such as "one side", "the other side", "one side", "the other side", "first", and "second" are used, this is to clearly distinguish between two structural elements, and the meaning of the corresponding structural elements is not limited to the above terms.

[0064] Furthermore, in this specification, when terms related to positions such as "up", "down", "left", and "right" are used, these represent the relative positions of the corresponding structural elements in the corresponding drawings, and unless the absolute positions of these positions are specified, these position-related terms should not be interpreted as representing absolute positions.

[0065] Furthermore, in the present specification, when assigning figure marks to each structural element in each drawing, the same structural element is assigned the same figure mark as much as possible even if the structural element appears in different drawings, that is, the same figure mark represents the same structural element throughout the specification.

[0066] In the drawings attached to this specification, the size, position, connection relationship, etc. of each structural element constituting the present invention may be enlarged or reduced or omitted so as to fully and clearly convey the idea of ​​the present invention or facilitate explanation. Therefore, the proportion or scale may not be strict.

[0067] Furthermore, in the following description of the present invention, a detailed description of a structure that is judged to be likely to unnecessarily obscure the gist of the present invention, for example, including a known technology of the related art, may be omitted.

[0068] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0069] Figure 1 This is an exploded perspective view showing an integrated screening device for screening the particle size of a soil sample according to the present invention. Figure 2 This is a combined stereogram of an integrated screening device for screening the particle size of soil samples according to an embodiment of the present invention. Figure 3 A diagram showing a laminated particle size screening portion of an integrated screening device for screening the particle size of a soil sample applicable to an embodiment of the present invention, Figure 4 The figure is a diagram showing various meshes of a laminated particle size screening part of an integrated screening device for screening the particle size of a soil sample applicable to an embodiment of the present invention. Figure 5 It is a side view of an integrated screening device for screening the particle size of soil samples according to an embodiment of the present invention.

[0070] like Figure 1 and Figure 2 As shown, the integrated screening device for screening the particle size of a soil sample according to an embodiment of the present invention may include a particle size screening part 200 , a main body cover 100 , a sample receiving part 300 and a water supply part 400 .

[0071] The particle size screening unit 200 is a device for screening soil samples according to particle size. It is equipped with at least one sieve and can screen and drop the input soil sample according to particle size.

[0072] Moreover, if Figure 1 and Figure 2 As shown, the particle size screening part 200 may include: an annular frame 210 ; and a sieve including an elliptical screen 230 installed at the inner bottom of the annular frame 210 for screening the soil sample.

[0073] And, if Figure 2 and Figure 3 As shown, the particle size screening part 200 may be a single sieve formed by one sieve or may be a device formed by stacking a plurality of sieves to filter and screen soil samples of various particle sizes.

[0074] Preferably, the diameter of the sieve is not more than about 8 cm, and the sieve may be inserted and installed along the opening direction of the main body housing 100 in such a manner that the sample receiving part 300 (collector) is located below the particle size screening part 200 .

[0075] Moreover, if Figure 4 As shown, preferably, the particle size screening part 200 formed by stacking a plurality of sieves can be formed by making the mesh sizes of the sieves 230 different from each other, and the mesh sizes gradually decrease from the upper end to the lower end.

[0076] This is to allow samples of various sizes included in the soil sample to be filtered in sequence according to the size of the mesh, and to effectively screen the soil sample by particle size by stacking a plurality of sieves 230 having a preset mesh size.

[0077] Moreover, if Figure 5 As shown, preferably, the particle size screening part 200 is in the shape of an elliptical disk extending along the length direction of the two sides connected to the above-mentioned main body outer cover 100, so as to form a separation space between the rear end of the particle size screening part 200 and the inner side surface of the main body outer cover 100, so that the screen 230 can be rotated and tilted based on the structure connected or combined to the inner side surfaces of both sides of the later-mentioned main body outer cover 100.

[0078] like Figure 1 and Figure 2As shown, the main body cover 100 may be in a cylindrical shape, with one side in an open state, and the particle size screening part 200 is detachably coupled to the cover device on the inner side in the open direction.

[0079] Moreover, if Figure 1 and Figure 2 As shown, the main body cover 100 may include protrusions 115 formed on both sides of the inner side surface, which are combined with grooves 215 formed on both sides of the outer side surface of the particle size screening part 200, so that the particle size screening part 200 can rotate at a preset angle.

[0080] In addition, the rotational connection structure between the inner side surfaces of both sides of the main body cover 100 and the two sides of the particle size screening part 200 can also be formed into a detachable hinge structure.

[0081] As described above, the particle size screening unit 200 is a device that is inserted into the open surface of the main body cover 100 and detached, thereby making it easy to detach sieves with meshes of various sizes and screen soil samples by density according to the use and purpose.

[0082] Furthermore, the structure in which the protrusions 115 on both sides of the main body cover 100 can be inserted into the grooves 215 on both sides of the particle size selection part 200 for rotation can make the particle size selection part 200 tilt at a predetermined angle.

[0083] As described above, the particle size screening part 200 is combined with the main body cover 100 in a tiltable manner for the purpose of tilting it toward the user for screening, so that the user can easily and smoothly brush the soil sample placed on the sieve with a brush.

[0084] Moreover, if Figure 5 As shown, a linear locking groove 135 is formed at the upper end of the protrusion 115 along the peripheral surface of the inner side of the main body outer cover 100, so that the lower corner is locked and fastened when the particle size screening part 200 rotates.

[0085] More specifically, preferably, the particle size screening section 200 includes a cylindrical frame having a ring or elliptical shape with a specified thickness and a screen 230 is formed on the inner side surface. The main frame is a structure in which a portion of the front surface of the cylindrical outer cover is open. The side of the particle size screening section 200 exposed through the open structure can rotate and move freely. Since the rear inner side surface of the main outer cover 100 is adjacent to the particle size screening section 200, the rotation may be restricted. Therefore, in order to form a separation interval in a manner that can be rotated by a specified angle, the shape of the particle size screening section is an elliptical shape extending in the direction of the rotation axis.

[0086] And, if Figure 5As shown, preferably, the sieve 230 is fixed in an inclined state so that the user can conveniently use a brush to clean the soil sample placed on the sieve 230. For this reason, when the particle size screening part 200 rotates, the lower corner of the rear end will contact a part of the inner side surface of the rear of the main body cover 100, and a groove is formed at the contact line, so that the lower corner of the rear end of the particle size screening part 200 is stuck or inserted in the locking groove 135 and is fixed.

[0087] Among them, the locking and fixing force of the lower edge corner of the particle size screening part 200 in the locking groove 135 can be a force that prevents it from easily falling off when the user applies a specified degree of force. At the same time, the above-mentioned locking and fixing force is a locking and combining force that maintains sufficient fixing force to stably perform screening through the brush.

[0088] That is, Figure 5 As shown, a linear locking groove 135 may be formed at the upper end of the protrusion 115 along the peripheral surface of the inner side of the main body outer cover 100, so that the lower corners are locked and combined when the particle size screening part 200 is rotated.

[0089] The distance between the rear surface of the particle size screening part 200 and the inner side surface of the main body outer cover 100 can determine the rotatable angle of the particle size screening part 200 and the position of the linear locking groove 135 .

[0090] Moreover, if Figure 1 and Figure 2 As shown, the sample receiving part 300 is installed at the lower part of the particle size screening part 200 to collect the soil and water screened by the sieve and discharged to the bottom of the particle size screening part 200 .

[0091] The sample receiving part 300 is in the form of a beaker. Since it uses a transparent or translucent material, water and soil samples dropped from the particle size screening part 200 can be easily confirmed. It can be easily dropped in and installed through the open surface of the main body cover 100, and has the advantage of being able to perform soil sample screening and collection functions at the same time.

[0092] Moreover, if Figure 1 and Figure 2 As shown, the water supply unit 400 stores and supplies water to be input into the particle size screening unit 200 for screening the soil sample. The water supply unit 400 is installed at an input port formed at the upper end of the main body housing 100 and supplies water to the particle size screening unit 200 .

[0093] And, preferably, the water supply unit 400 includes: a water regulating unit 410 installed at the inlet for regulating the strength, supply amount and dispersion of the water input; and a water bucket unit 420 for storing water, the inlet of which is installed at the upper end of the water regulating unit 410.

[0094] That is, the water regulating part 410 is installed at the inlet formed at the center of the upper end of the main body housing 100 , and is used to install the water barrel part 420 in the shape of a water bottle on the water regulating part 410 in the shape of a small tube.

[0095] The water regulating part 410 may be a nozzle structure, combining two or more disc-shaped spray pipes having multiple through holes of different sizes, and the size of the water through holes may be adjusted by rotating one spray pipe (not shown).

[0096] The injection pipe structure in which the upper and lower stacked through holes have different sizes and are arranged in different ways has the following advantages. When one injection pipe is rotated, as the two injection pipes cross each other, the size of the through hole formed by the through holes will change, thereby achieving the opening and closing function of the water supply part 400. Not only that, the water injection pressure can also be adjusted by adjusting the size of the water through hole through which the water is supplied.

[0097] The integrated screening device for screening the particle size of soil samples according to the embodiment of the present invention as described above has the following advantages and effects.

[0098] 1) Ease of operation: The user can directly access the sieve, so that the sieving process can be directly monitored and managed. The sieve and the beaker-shaped collector can be separated, so the cleaning process is simple, and the parts can be replaced or exchanged according to the requirements of the sieving process.

[0099] 2) Improved screening efficiency: The rotatable sieve design promotes more dynamic screening, allowing the soil sample to move on the sieve surface, thereby increasing the possibility of small particles passing through.

[0100] In addition, the inclined structure of the screen helps users to easily perform brushing work, especially when dealing with sticky or clay soils, it can help remove soil particles and improve the screening process.

[0101] 3) Optimized for wet screening: As an integrated structure, it is combined with a wet screening device, which can further simplify the overall process and does not require assembly or construction of multiple structural elements.

[0102] 4) Controlling water supply: The integrated screening device for screening the particle size of soil samples according to the embodiment of the present invention can adjust the amount and pressure of water supplied to the soil sample, thereby improving the wet screening efficiency. In addition, wet screening is particularly useful for samples that are prone to agglomeration or particles that are difficult to screen under dry conditions.

[0103] 5) Minimization of sample loss: Use a beaker-type collector or sample receiving portion, whereby the sieved sample can be effectively oriented and collected, thereby reducing the possibility of sample loss or leakage.

[0104] 6) Screening by particle size and multiple uses: Users can change the sieve to a sieve of other mesh sizes according to their needs. In addition, the present invention has a structure in which sieves of different mesh sizes are stacked, so that soil samples can be easily screened by particle size. Therefore, it can be used for multiple purposes according to various soil types and specific particle size requirements.

[0105] As described above, the integrated screening device for screening the particle size of soil samples according to the embodiment of the present invention provides a harmonious balance between functionality, effectiveness and ease of use, and simplifies the screening process, thereby ensuring consistent results. Therefore, the present invention is a very useful device in soil analysis and similar application fields.

[0106] In the above, a plurality of preferred embodiments of the present invention are described through some examples. The descriptions related to the plurality of embodiments recorded in the “Specific Implementation Method” item are only for illustration. Any person skilled in the art in the technical field to which the present invention belongs can clearly understand from the following description that the present invention can be subjected to various modifications and implementations to perform implementations equivalent to the present invention.

[0107] Furthermore, the present invention can be embodied in a variety of different forms. Therefore, the present invention is not limited to the above description. The above description makes the disclosure of the present invention complete and is provided to inform the ordinary technicians in the technical field to which the present invention belongs of the full scope of the present invention. The present invention is defined by each claim in the scope of protection required by the invention.

Claims

1. An integrated screening device for screening the particle size of soil samples, characterized in that: include: The particle size screening part is provided with at least one sieve, and the soil sample input is screened according to the particle size and then thrown down; The cylindrical main body outer cover has one side in an open state, and the particle size screening part is detachably combined with the inner side in the open direction; a sample receiving portion, installed at the lower part of the particle size screening portion of the main body outer cover, for collecting soil and water screened by the sieve and discharged below the particle size screening portion; and The water supply part is installed at the inlet formed at the upper end of the main body outer cover and is used for supplying water to the inside of the particle size screening part.

2. The integrated screening device for screening the particle size of soil samples according to claim 1, characterized in that: The particle size screening section includes: Ring frame; and a sieve, comprising an elliptical screen for sieving the soil sample installed at the inner bottom of the annular frame, The sieve is in a single-layer structure or a multi-layer stacked structure.

3. The integrated screening device for screening the particle size of soil samples according to claim 1, characterized in that: The protrusions formed on both sides of the inner side surface of the main body outer cover are combined with the grooves formed on both sides of the outer side surface of the particle size screening part, so that the particle size screening part can rotate at a preset angle.

4. The integrated screening device for screening the particle size of soil samples according to claim 1, characterized in that: The sample receiving portion is formed of a transparent or translucent material.

5. The integrated screening device for screening the particle size of soil samples according to claim 1, characterized in that: The above-mentioned water supply department includes: A water regulating unit installed at the inlet for regulating the strength, supply and dispersion of the water flow; and The water bucket part is used for storing water, and the inlet is installed at the upper end of the water regulating part.

6. The integrated screening device for screening the particle size of soil samples according to claim 5, characterized in that: In the water adjustment unit, two or more disc-shaped spray pipes having a plurality of through holes of different sizes are combined, and the size of the water through hole can be adjusted by rotating one spray pipe.

7. The integrated screening device for screening the particle size of soil samples according to claim 1, characterized in that: Protrusions are provided on both inner side surfaces of the open side of the main body cover at a horizontal line, and fastening grooves are provided on both outer side surfaces of the particle size screening part in a manner corresponding to the protrusions on both sides. The protrusion is inserted into the fastening groove and fastened in a rotatable manner.

8. The integrated screening device for screening the particle size of soil samples according to claim 7, characterized in that: The particle size screening part is in the shape of an elliptical disk extending along the length direction of both sides connected to the main body cover.

9. The integrated screening device for screening the particle size of soil samples according to claim 7, characterized in that: A linear locking groove is formed at the upper end of the protruding portion along the peripheral surface of the inner side surface of the main body outer cover, so that the lower corner is locked and fastened when the particle size screening part rotates.

10. The integrated screening device for screening the particle size of soil samples according to claim 1, characterized in that: The particle size screening part is composed of stacked screens of different sizes. The mesh size of the screen gradually decreases toward the bottom.

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