Quartering sample separation device

Abstract

The utility model relates to a quartering sample separating device which comprises a mixing container assembly, and the bottom of a mixing container is respectively connected with four shunting channels; a sample feeding funnel assembly is arranged at the top of the uniform mixing container, and a funnel lower connecting part at the bottom of a sample feeding funnel is detachably connected with the top of the uniform mixing container below; the four shunting channels are uniformly distributed at the periphery of the bottom of the base, and the base is detachably connected with the bottom of the blending container above; a partition plate groove is formed in the inner side of the portion, below the cross-shaped screening grid, of the base, and a partition plate is installed in the partition plate groove in the horizontal direction. A standardized device is used for standardizing the quartering process, so that the sample uniformity is prevented from being influenced by manual misoperation, and the representativeness and the accuracy of a detection result are improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to sampling and sample division, in particular to a four-division sample division device. Background Art

[0002] Quarter sampling, also known as cone quartering, refers to a method of reduction operation in which each sample is piled into a uniform cone shape, pressed into a frustum, and then divided into four equal parts using a cross frame. Survey sampling of plant communities provides raw data for vegetation research. Therefore, the choice of sampling method determines the accuracy and reliability of the final conclusion. The traditional sampling method for vegetation research was created by Swedish scholar Von Post in the 1850s and is widely used. The no-plot rule was proposed by American scholars Cottom and Curtis in the 1950s. The no-plot sampling method is adopted by ecologists because of its low workload, high efficiency, and can be used to collect information on species competition, growth and environmental factors. Among them, the midpoint quartering method is the most widely used.

[0003] The existing quartering method generally includes the following steps: mixing the original sample and stacking it into a uniform cone; using a cross-shaped rack to divide it into four equal parts along the diagonal line; retaining any two diagonal parts, discarding the other two diagonal parts, and re-mixing; repeating the above steps until 500-1000g of sample is retained.

[0004] Or as in the comparative document 1 with the publication number CN217155881U, a simple quartering sampling device is disclosed, comprising: a feed barrel, a dividing barrel and a holding barrel, the feed barrel and the dividing barrel are both in the shape of a truncated cone, the small end of the feed barrel is connected to the small end of the dividing barrel, and the large end of the dividing barrel is connected to the holding barrel, and a cross plate is also arranged in the dividing barrel and the holding barrel, the outer contour formed by the rotation of the cross plate around its center matches the inner wall of the dividing barrel and the holding barrel, avoiding errors caused by human operation, solving the problems of randomness and unevenness in sampling, improving the accuracy of the experiment, and having a simple structure, easy operation, and convenient movement, it can be used in a variety of scenarios.

[0005] In summary, the shortcomings of the prior art are:

[0006] For large quantities of samples to be tested, laboratories usually need to use the standard four-section method for sampling and testing, but the steps are cumbersome, time-consuming and labor-intensive. Due to too many manual operation steps, human errors are prone to occur, which in turn affects the experimental results.

[0007] In addition, the quadrant sampling device of the prior art is usually arranged as an integrated structure, the detachability between the structures is poor, and the opening and closing of the process cannot be controlled.

[0008] In view of the above-mentioned defects, the designer actively carried out research and innovation in order to create a four-part sampling device to make it more valuable for industrial use. Utility Model Content

[0009] In order to solve any of the above technical problems, the purpose of the utility model is to provide a four-division sample dividing device.

[0010] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0011] A four-division sampling device comprises a mixing container assembly, wherein the mixing container assembly comprises a mixing container, and the bottom of the mixing container is respectively connected to four flow diversion channels;

[0012] A sample-feeding funnel assembly is arranged on the top of the mixing container. The sample-feeding funnel assembly includes a sample-feeding funnel. A lower funnel connecting portion at the bottom of the sample-feeding funnel is detachably connected to the top of the mixing container below.

[0013] The four diversion channels are evenly distributed around the bottom of the base, a cross-shaped screening grid is arranged on the inner side of the bottom of the mixing container, the cross-shaped screening grid is connected to the diversion channel directly below, and the base is detachably connected to the bottom of the mixing container above;

[0014] A partition plate groove is arranged on the inner side of the base below the cross-shaped screening grid, and a partition plate is installed in the partition plate groove along the horizontal direction.

[0015] As a further improvement of the utility model, a funnel cover plate is arranged on the top of the sample feeding funnel, a funnel external thread is arranged on the outer side of the lower connecting part of the funnel, and an internal container thread matched with the above-mentioned funnel external thread is arranged on the inner side of the top of the mixing container.

[0016] As a further improvement of the utility model, a stirring shaft is installed in the middle position of the mixing container along the vertical direction, and a plurality of stirring blades are evenly distributed on the stirring shaft along the circumferential direction.

[0017] As a further improvement of the utility model, a base external thread is arranged on the outer side of the top of the base, and a container lower internal thread which is matched with the above-mentioned base external thread is arranged on the inner side of the bottom of the mixing container.

[0018] As a further improvement of the utility model, a through hole communicating with the outside is opened in the horizontal direction on the base on the left side of the partition groove, and the right side of the partition can pass through the through hole and enter the inner partition groove.

[0019] As a further improvement of the utility model, a clamping plate is installed on the partition plate on the left side of the through hole, and a handle is installed on the left side of the clamping plate.

[0020] As a further improvement of the utility model, a sealing gasket is installed in the through hole.

[0021] As a further improvement of the utility model, a slot is provided on the base on the right side of the partition groove along the horizontal direction, and the right side of the partition can be inserted into the slot.

[0022] As a further improvement of the utility model, a sealing gasket is installed in the slot.

[0023] By means of the above solution, the utility model has at least the following advantages:

[0024] The utility model utilizes a standardized device to standardize the process of the four-section method, thereby avoiding human operating errors that affect sample uniformity and improving the representativeness and accuracy of the test results;

[0025] The utility model can reduce manual operation process and improve work efficiency;

[0026] The sample feeding funnel component, the mixing container component and the diversion channel of the utility model can be detachably connected together, and the opening and closing of the process can be controlled by the partition plate.

[0027] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a structural schematic diagram of a four-division sample dividing device of the utility model;

[0030] Figure 2 yes Figure 1 A schematic diagram of the structure of the mid-shot sample funnel assembly;

[0031] Figure 3 yes Figure 1 A schematic diagram of the structure of the mixing container assembly;

[0032] Figure 4 yes Figure 3 Schematic diagram of the structure on the inside of the bottom;

[0033] Figure 5 yes Figure 1Schematic diagram of the structure of the middle diversion channel and the base.

[0034] The meanings of the various reference numerals in the figures are as follows.

[0035] A sample feeding funnel component 1, a mixing container component 2, a diversion channel 3, and a base 4;

[0036] A sample feeding funnel 11, a funnel cover plate 12, a lower connecting portion of the funnel 13, and an external thread of the funnel 14;

[0037] A mixing container 21, a stirring shaft 22, a stirring blade 23, and a cross-shaped screening grid 24;

[0038] The base comprises an external thread 41 , a partition groove 42 , a partition 43 , a clamping plate 44 , a handle 45 , a through hole 46 , and a slot 47 . DETAILED DESCRIPTION

[0039] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0040] In order to make the technical personnel in the technical field better understand the scheme of the utility model, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model usually described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model for protection, but only represents the selected embodiment of the utility model. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the utility model.

[0041] Example

[0042] like Figure 1 to Figure 5 As shown,

[0043] A four-division sampling device comprises a mixing container assembly 2. The mixing container assembly 2 comprises a mixing container 21. The bottom of the mixing container 21 is respectively connected to four flow dividing channels 3.

[0044] 1. A sample-feeding funnel assembly 1 is arranged on the top of the mixing container 21. The sample-feeding funnel assembly 1 includes a sample-feeding funnel 11. The lower funnel connecting portion 13 at the bottom of the sample-feeding funnel 11 is detachably connected to the top of the mixing container 21 below.

[0045] A funnel cover plate 12 is arranged on the top of the sample feeding funnel 11 , a funnel external thread 14 is arranged on the outside of the funnel lower connecting portion 13 , and a container upper internal thread matched with the above-mentioned funnel external thread 14 is arranged on the inner side of the top of the mixing container 21 .

[0046] 2. A stirring shaft 22 is installed in the middle of the mixing container 21 along the vertical direction, and a plurality of stirring blades 23 are evenly distributed along the circumferential direction on the stirring shaft 22. The stirring shaft 22 can be used for manual stirring or machine stirring, and the stirring shaft 22 can be extended upward to the top of the sample feeding funnel 11, and used manually or by an external motor.

[0047] 3. Four diversion channels 3 are evenly distributed around the bottom of the base 4. A cross-shaped sieve grid 24 is provided on the inner side of the bottom of the mixing container 21. The cross-shaped sieve grid 24 is connected to the diversion channel 3 directly below. The base 4 is detachably connected to the bottom of the mixing container 21 above. A base external thread 41 is provided on the outer side of the top of the base 4, and a container lower internal thread matching the above-mentioned base external thread 41 is provided on the inner side of the bottom of the mixing container 21.

[0048] A partition groove 42 is provided on the inner side of the base 4 below the cross-shaped screening grid 24, and a partition 43 is installed in the partition groove 42 along the horizontal direction. A through hole 46 connected to the outside is opened in the base 4 on the left side of the partition groove 42 along the horizontal direction, and the right side of the partition 43 can enter the inner partition groove 42 after passing through the through hole 46. A clamping plate 44 is installed on the partition 43 on the left side of the through hole 46, and a handle 45 is installed on the left side of the clamping plate 44. A counter slot 47 is opened in the base 4 on the right side of the partition groove 42 along the horizontal direction, and the right side of the partition 43 can be inserted into the counter slot 47.

[0049] In addition, sealing gaskets are installed in the through hole 46 and in the counter-slot 47 .

[0050] The working process of this utility model is briefly described as follows:

[0051] 1. The top of the device is a sample funnel 11, and the sample is poured into the sample funnel 11.

[0052] 2. The lower opening of the sample feeding funnel 11 is connected to a mixing container 21, and the mixing container 21 uses a stirring blade 23 to continuously rotate and mix the falling sample.

[0053] 3. Pull out the partition 43;

[0054] 4. The lower part is connected to an inclined screening channel (i.e., four diversion channels 3), and the sample reaches the cross-shaped screening grid 24, and is directly and evenly divided into four parts after passing through the cross-shaped screening grid 24.

[0055] 5. Pass through four diversion channels 3 and fall into the corresponding receiving container.

[0056] 6. Take any diagonal sample and if the sample size is between 500-1000g, proceed directly to the next step. If the sample size is still too much, take a diagonal sample and repeat the above steps.

[0057] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0058] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A four-division sampling device, comprising a mixing container assembly (2), wherein the mixing container assembly (2) comprises a mixing container (21), and the bottom of the mixing container (21) is respectively connected to four flow diversion channels (3); Features: A sample feeding funnel assembly (1) is arranged on the top of the mixing container (21), wherein the sample feeding funnel assembly (1) comprises a sample feeding funnel (11), and a lower funnel connecting portion (13) at the bottom of the sample feeding funnel (11) is detachably connected to the top of the mixing container (21) below; The four diversion channels (3) are evenly distributed around the bottom of the base (4); a cross-shaped screening grid (24) is provided on the inner side of the bottom of the mixing container (21); the cross-shaped screening grid (24) is connected to the diversion channel (3) directly below; the base (4) is detachably connected to the bottom of the mixing container (21) above; A partition plate groove (42) is provided on the inner side of the base (4) below the cross-shaped screening grid (24), and a partition plate (43) is installed in the partition plate groove (42) along the horizontal direction.

2. A four-division sample dividing device as claimed in claim 1, characterized in that: A funnel cover plate (12) is arranged on the top of the sample feeding funnel (11), a funnel external thread (14) is arranged on the outside of the funnel lower connecting portion (13), and a container upper internal thread matched with the above-mentioned funnel external thread (14) is arranged on the inside of the top of the mixing container (21).

3. A four-division sample dividing device as claimed in claim 1, characterized in that: A stirring shaft (22) is installed in the middle position of the mixing container (21) along the vertical direction, and a plurality of stirring blades (23) are evenly distributed on the stirring shaft (22) along the circumferential direction.

4. A four-division sample dividing device as claimed in claim 1, characterized in that: An external base thread (41) is provided on the outer side of the top of the base (4), and an internal container thread matching the external base thread (41) is provided on the inner side of the bottom of the mixing container (21).

5. A four-division sample dividing device as claimed in claim 1, characterized in that: A through hole (46) communicating with the outside is provided in the horizontal direction on the base (4) on the left side of the partition groove (42); the right side of the partition (43) can pass through the through hole (46) and enter the partition groove (42) on the inner side.

6. A four-division sample dividing device as claimed in claim 5, characterized in that: A clamping plate (44) is installed on the partition (43) on the left side of the through hole (46), and a handle (45) is installed on the left side of the clamping plate (44).

7. A four-division sample dividing device as claimed in claim 5, characterized in that: A sealing gasket is installed in the through hole (46).

8. A four-division sample dividing device as claimed in claim 5, characterized in that: A slot (47) is provided on the base (4) on the right side of the partition groove (42) in a horizontal direction, and the right side of the partition (43) can be inserted into the slot (47).

9. A four-division sample dividing device as claimed in claim 8, characterized in that: Sealing gaskets are installed in the pair of slots (47).

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