Flexible divider for granular fertilizer sampling and use method

Abstract

The invention discloses a flexible divider for granular fertilizer sampling and a use method. The flexible divider comprises an inner core, a sleeve and a flexible assembly bag, the sleeve sleeves the outer side of the inner core; the flexible assembly bag is detachably connected with the sleeve; the inner core comprises an inner core body, a sample inlet / outlet is formed in the inner core body, and a chute group is arranged in the sample inlet / outlet; the sample inlet / outlet comprises a sample inlet and a sample outlet communicated with the sample inlet; the sleeve comprises a sleeve body, and a rectangular groove is formed in the sleeve body. When the rectangular open slot corresponds to the chute group, the sample inlet and outlet is opened, and when the rectangular open slot and the chute group are staggered, the sample inlet and outlet is closed; the flexible assembly bag comprises a flexible bag body, the bottom of the flexible bag body is connected with a rigid connecting body, and an inserting groove opening is formed in the rigid connecting body and matched with the rectangular open groove. Compared with the prior art, the flexible divider for granular fertilizer sampling can solve the problems that a traditional divider is inconvenient to carry, and samples easily absorb moisture and are lost in the dividing process.

Description

Technical Field

[0001] The present invention relates to the technical field of fertilizer reduction, and in particular to a flexible reducer for granular fertilizer sampling and a use method thereof. Background Art

[0002] Fertilizer is the "food" of food, playing a vital role in increasing crop yields and improving quality, and is a crucial support for ensuring our food security. Factory inspection, type inspection, and supervisory spot checks of fertilizer products are important means of ensuring fertilizer quality, and are also effective ways to protect consumer rights and purify the fertilizer market. Among these, fertilizer sampling and fractionation are directly related to the representativeness and uniformity of the samples, which in turn will affect the inspection results. Relevant standards have stipulated the equipment involved in the sampling of fertilizer products, such as the commonly used sampling rods and fractionators. The fractionator is used to evenly divide the collected samples to achieve the goal of distributing a large number of collected samples to the target amount without affecting the representativeness, which is convenient for subsequent storage and pre-processing.

[0003] The commonly used granular fertilizer reducer at present is a metal Y-shaped grid-type reducer. The sample is introduced through the upper opening, and the side gate is opened to allow the granular fertilizer sample to fall naturally through the offset grid in the middle and evenly enter the two sides of the bottom. The sample is received by two metal boxes, and two representative and consistent samples are obtained. The target amount of sample can be obtained by repeating the operation many times. The metal Y-shaped grid-type reducer is large in size, irregular in shape, with many sharp edges and corners, which makes it inconvenient to carry. At the same time, the terrain and space size will bring various inconveniences to the reduction process. In addition, the overall open system of the reducer is large, and the falling sample contacts a large area of air during the reduction process. It is easy to absorb moisture when reducing the sample in the south with high humidity. The sample may also be contaminated, affecting the scientific rigor of the sampling. In the process of sample division and receiving, there is also the phenomenon that the granular sample flies out of the receiving box and causes sample loss.

[0004] Based on the various problems that arise in the use of traditional dividers, there is a need for a divider that is easy to carry and has more stable and reliable reduction, so as to make the sampling process more convenient, more scientific and more reliable. Summary of the Invention

[0005] In response to the above-mentioned problems in the prior art, the present invention proposes a flexible reducer and a method of use for granular fertilizer sampling, so as to solve the problems that traditional reducers are inconvenient to carry and that samples are prone to moisture absorption and loss during the reduction process. The flexible bag body can be quickly loaded and unloaded through a rigid connector, and the reduction groove part is simplified into a cylindrical sleeve mode. The sleeve can be sleeved on the outside of the inner core, which is convenient for use, storage and cleaning. When carrying, the flexible bag body can be unplugged or directly wrapped around the sleeve, which is more convenient to carry and does not take up space; the flexible bag body can effectively prevent sample splashing and avoid sample moisture absorption; the sleeve is combined with the sample inlet and outlet, and the three ports of the sleeve can be used interchangeably. The inner core can be rotated to adjust the correspondence between the flexible bag body and the sample inlet and outlet, making it more flexible to use and match. While ensuring the sampling quality, it ensures that the reducer is safer and more convenient to carry, the reduction experience is better, and the samples are more representative.

[0006] In order to achieve the above object, the present invention has the following technical solutions:

[0007] The first object of the present invention is to provide a flexible reducer for sampling granular fertilizers, the flexible reducer comprising an inner core, a sleeve, and a flexible assembly bag; the sleeve is sleeved on the outside of the inner core; the flexible assembly bag is detachably connected to the sleeve; the inner core comprises an inner core body, a sample inlet and outlet are provided on the inner core body, and a chute group is provided in the sample inlet and outlet; the sample inlet and outlet comprise an inlet and a sample outlet connected to the inlet; the sleeve comprises a sleeve body, a rectangular slot is provided on the sleeve body; when the rectangular slot corresponds to the chute group, the sample inlet and outlet are opened, and when the rectangular slot is staggered with the chute group, the sample inlet and outlet are closed; the flexible assembly bag comprises a flexible bag body, the bottom of the flexible bag body is connected to a rigid connector, a slot opening is provided on the rigid connector, and the slot opening matches the rectangular slot.

[0008] Furthermore, the flexible bag body is made of transparent flexible polymer material, and the other parts (inner core, sleeve, rigid connector) can be made of metal or other materials (such as hard polymer). The structure is more stable and not easy to damage, ensuring that the reducer is durable and easy to clean.

[0009] Furthermore, the chute group includes forward chute and reverse chute; the forward chute and reverse chute are alternately arranged; adjacent forward chute and reverse chute are separated by chute spacers.

[0010] Furthermore, the inner core is cylindrical.

[0011] Furthermore, the sample inlet and outlet include one sample inlet and two sample outlets; the inner core is evenly provided with one sample inlet and two sample outlets at 120° intervals in the circumferential direction.

[0012] Furthermore, the sample inlet and outlet are matched with rectangular slots, which are further matched with the flexible bag body, and the rotatable design of the inner core makes the shrinking more flexible. Any one flexible bag body can correspond to the sample inlet as a sample inlet bag, and the other two flexible bag bodies can correspond to the sample outlet as sample outlet bags.

[0013] Furthermore, the sample inlet and outlet ports are opened on the surface of the inner core body parallel to the axial direction of the inner core body.

[0014] Furthermore, the chute group includes 10 to 15 forward chute slots and the same number of reverse chute slots as the forward chute slots.

[0015] Furthermore, the chute group includes 12 forward chute grooves and 12 reverse chute grooves.

[0016] Furthermore, the forward chute is connected to the sample inlet and one of the sample outlets, and the reverse chute is connected to the sample inlet and the other sample outlet.

[0017] Furthermore, the forward chute and the reverse chute of the chute group are distributed at equal distances. The equally distributed chute can make the sample shrinkage more uniform.

[0018] Furthermore, the inner core also includes a knob; the knob is connected to the top of the inner core body, and the knob is used to drive the inner core body to rotate.

[0019] Furthermore, the knob points to the injection port so as to quickly identify the injection port and ensure quick identification of the positions of the injection and output ports.

[0020] Furthermore, the sleeve also includes a slide groove, which is opened on the sleeve body and is arranged on the edge of the rectangular slot; the flexible assembly bag also includes a slot, which is opened on the rigid connector; the slide groove and the slot are detachably connected so as to detachably connect the sleeve body of the sleeve and the rigid connector of the flexible assembly bag, thereby facilitating the rapid installation and disassembly of the flexible bag body of the flexible assembly bag.

[0021] Furthermore, the flexible assembly bag further includes a bag opening and closing piece, and the bag opening and closing piece is used to open or close the flexible bag body.

[0022] Furthermore, the bag opening and closing member is a zipper (the zipper is a clip chain, that is, a clip chain on a clip chain ziplock bag (also known as a zipper bag), which can achieve sealing), which can achieve quick opening and closing.

[0023] Furthermore, the sleeve body is in the shape of a hollow cylinder, with one side (end) having a sealed bottom and the other side (end) being open.

[0024] Furthermore, the sleeve body is evenly provided with three rectangular slots at 120° intervals in the circumferential direction; the length and width of the sample inlet and outlet ports correspond to the length and width of the rectangular slots, ensuring that the sample inlet and outlet ports and the rectangular slots can completely overlap when shrunk.

[0025] Furthermore, a scale is provided on the outer side of one side of the bottom of the sleeve sealing band, with markings made at least every 60° to facilitate accurate rotation of the inner core in a 60° clockwise or counterclockwise direction.

[0026] Furthermore, the outer diameter of the sleeve is larger than the outer diameter of the inner core, so that the inner core can rotate freely in the sleeve.

[0027] Furthermore, the overall structure has no threads, threaded holes and splicing structures. The inner core and the sleeve can be directly formed by independent processes and are fixed only by the friction between the sleeve and the inner core. Except for the flexible bag body, other parts can be made of metal or other materials. The structure is more stable and not easy to damage, ensuring that the reducer is durable and easy to clean.

[0028] A second object of the present invention is to provide a method for using a flexible divider for sampling granular fertilizers, the method comprising the following steps:

[0029] S1. Expand the flexible bag body of the flexible divider, connect the bottom to the rigid connector, detachably connect the flexible assembly bag to the sleeve so that the slot opening on the rigid connector matches the rectangular slot, and insert the inner core into the sleeve;

[0030] S2. Turn one of the flexible bags upward, rotate the inner core to close the sample inlet and outlet, open the upper flexible bag, and ensure that the lower flexible bag is closed;

[0031] S3. Pour the shrunken sample into the upper flexible bag, close the upper flexible bag, rotate the inner core to open the sample inlet and outlet, and allow the sample to flow from the upper flexible bag through the chute assembly into the lower flexible bag after being shrunken.

[0032] S4. After the sample shrinkage of the flexible bag at the upper position is completed, the inner core is rotated again to close the sample inlet and outlet ports;

[0033] S5. Open the flexible bag at the lower position and collect the shrunken samples.

[0034] Furthermore, after step S5, the following step S6 is performed:

[0035] S6, repeat steps S1-S5 until the sample is reduced;

[0036] After step S6, perform the following step S7:

[0037] S7. After shrinking, remove the rigid connector and the inner core of the flexible bag, wipe or rinse and dry them, and assemble them according to step S1 so that they can be used directly next time.

[0038] Furthermore, the shrunken sample is granular fertilizer.

[0039] Furthermore, the flexible reducer for sampling granular fertilizers is equivalent to the traditional grid-type reducer required by the standard, and is suitable for reduction when production enterprises, quality and technical supervision and law enforcement system personnel carry out quality control and supervision inspections in finished product warehouses, distribution outlets, import and export terminals and other places. The device has a simple structure and is flexible and convenient to operate, which is conducive to improving the quality of fertilizer products.

[0040] Compared with the prior art, the beneficial effects of the present invention are embodied in the following aspects:

[0041] 1) The flexible reducer for granular fertilizer sampling of the present invention has a flexible bag body that can be quickly loaded and unloaded through a rigid connector. The reducing groove part is simplified to a cylindrical sleeve mode, and the sleeve can be sleeved on the outside of the inner core, which is convenient for use, storage and cleaning. When carrying, the flexible bag body can be unplugged or directly wrapped around the sleeve. The whole is cylindrical, smaller in size and has no exposed corners or sharp parts. It is safer, more convenient to carry and does not take up space. When in use, it is only necessary to plug in the flexible bag body or unfold it, which is very convenient.

[0042] 2) The flexible reducer for granular fertilizer sampling of the present invention has an inner core with evenly staggered grooves to ensure uniformity of reduction. At the same time, the sleeve and the inner core are matched, and the sample inlet and the sample outlet can be replaced by rotation (when three sample inlets and outlets are set, the sample inlet and the sample outlet can be replaced every 60° rotation), which ensures the quality of sample reduction while being more flexible and practical. The evenly spaced grooves ensure stable and effective reduction. The inner core is matched with the sleeve to make the overall sealing better, ensuring that the sample does not leak. At the same time, the sample can flow out better during rotation, ensuring uniformity of reduction.

[0043] 3) The flexible reducer for granular fertilizer sampling of the present invention has a larger flexible bag capacity and is more flexible to use, which can effectively prevent sample splashing. It is further sealed in combination with the bag opening and closing structure on the top of the assembly bag, which minimizes the contact between the reduced sample and the air, and can avoid moisture absorption by the sample during the reduction process, preventing the sample from being contaminated or lost during the reduction process. It is also convenient for single-person operation, and flexible assembly bags of different specifications can be replaced according to actual conditions, making it more convenient to use.

[0044] 4) The flexible reducer for granular fertilizer sampling of the present invention is more flexible in use and matching. While ensuring the sampling quality, it ensures that the reducer is safer and more convenient to carry, the reducing experience is better, and the samples are more representative.

[0045] 5) The flexible reducer for granular fertilizer sampling of the present invention adopts a flexible assembly bag, an inner core and a sleeve, which improves the safety, convenience and rigor of the reducer when carrying and using. When in use, the flexible bag body is unfolded and the inner core is rotated to complete the operation preparation work. The use process is also simpler and the reduction operation can be completed without a flat site. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 Schematic diagram (perspective) of the assembly of a flexible divider for sampling granular fertilizers according to an embodiment of the present invention.

[0047] Figure 2 This is a schematic diagram of the complete assembly of a flexible reducer for granular fertilizer sampling according to an embodiment of the present invention.

[0048] Figure 3 Schematic diagram of the structure of the inner core of a flexible reducer for sampling granular fertilizers according to an embodiment of the present invention.

[0049] Figure 4 This is a structural schematic diagram (perspective view) of a sleeve of a flexible divider for sampling granular fertilizers according to an embodiment of the present invention.

[0050] Figure 5 Schematic diagram (perspective) of the structure of the rigid connector of the flexible divider for granular fertilizer sampling according to an embodiment of the present invention.

[0051] Figure 6 This is a structural schematic diagram of a flexible assembly bag (including a rigid connector and a flexible bag body) of a flexible divider for granular fertilizer sampling according to an embodiment of the present invention.

[0052] The numbers in the figure show:

[0053] 1-flexible bag body, 2-zipper, 3-sleeve body, 4-slide groove, 5-inner core body, 6-knob, 7-positive oblique groove, 8-reverse oblique groove, 9-oblique groove spacer, 10-slot, 11-slot opening, 12-rectangular slot, 13-rigid connector. DETAILED DESCRIPTION

[0054] The present invention will be further described in detail below with reference to specific embodiments, but this is by no means intended to limit the present invention. Any features, such as preparation methods, materials, structures, or composition ratios, that are not explicitly described in this technical solution are considered to be common technical features disclosed in the prior art.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements; "up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0056] It should be noted that, in the present invention, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0057] Example

[0058] like Figures 1-2 As shown, this embodiment provides a flexible reducer for sampling granular fertilizers, and the flexible reducer includes an inner core, a sleeve, and a flexible assembly bag.

[0059] The sleeve is sleeved on the outside of the inner core; the flexible assembly bag is detachably connected to the sleeve.

[0060] The inner core includes an inner core body 5, a knob 6, a positive bevel groove 7, a reverse bevel groove 8, and a bevel groove spacer 9; the sleeve includes a sleeve body 3, a rectangular slot 12, and a slide groove 4; the flexible assembly bag includes a flexible bag body 1, a zipper 2, a slot opening 11, a slot 10, and a rigid connector 13.

[0061] The inner core 5 is provided with an inlet and an outlet, and a chute group is arranged inside the inlet and the outlet; the inlet and the outlet include one inlet and two outlets connected to the inlet; the inner core 5 is evenly provided with one inlet and two outlets at 120° intervals in the circumferential direction.

[0062] The chute group includes forward chute 7 and reverse chute 8, which are alternately arranged. Adjacent forward chute 7 and reverse chute 8 are separated by chute spacers 9. The alternating distribution of the forward chute 7 and reverse chute 8 ensures uniform reduction of uneven samples within a small range.

[0063] In this embodiment, the chute group includes 10 to 15 forward chute slits 7 and the same number of reverse chute slits 8 as the forward chute slits 7. The forward chute slits 7 connect the sample inlet and one of the sample outlets, and the reverse chute slits 8 connect the sample inlet and the other sample outlet.

[0064] The forward chute 7 and the reverse chute 8 of the chute group are distributed at equal distances. Here, the equal distance distribution means that the opening sizes of the forward chute 7 and the reverse chute 8 are the same and the distances between adjacent forward chute 7 and reverse chute 8 are the same. The equidistant distribution of the chute can make the sample shrinkage more uniform.

[0065] The sample inlet and outlet ports are opened on the surface of the inner core 5 in parallel to the axial direction of the inner core 5 .

[0066] The inner core 5 is cylindrical, and the knob 6 is connected to the top of the inner core 5. Here, the top of the inner core 5 refers to the end of the cylindrical inner core 5. The knob 6 is used to drive the inner core 5 to rotate. The knob 6 points to the injection port so that the injection port can be quickly identified, ensuring rapid identification of the injection and outlet positions.

[0067] The sleeve body 3 is provided with a rectangular slot 12; when the rectangular slot 12 corresponds to the chute group, the sample inlet and outlet are opened, and when the rectangular slot 12 is staggered with the chute group, the sample inlet and outlet are closed.

[0068] The sliding groove 4 is opened on the sleeve body 3 , and the sliding groove 4 is arranged on the side of the rectangular slot 12 .

[0069] The sleeve body 3 is in the shape of a hollow cylinder, with a sealed bottom on one side (end) and an opening on the other side (end). After the inner core 5 is inserted into the sleeve body 3, the knob 6 is close to the open end of the sleeve body 3.

[0070] The sleeve body 3 is evenly provided with three rectangular slots 12 at 120° intervals in the circumferential direction; the length and width of the sample inlet and outlet correspond to the length and width of the rectangular slots 12, ensuring that the sample inlet and outlet can completely overlap with the rectangular slots 12 when shrinking.

[0071] The outer side of the sealing band bottom of the sleeve body 3 is provided with a scale. In this embodiment, marks are made every 60°, and one mark points to the middle position of one of the rectangular slots 12 to facilitate the accurate rotation of the inner core at 60° clockwise or counterclockwise.

[0072] The inner diameter of the sleeve body 3 is slightly larger than the outer diameter of the inner core body 5 so that the inner core can rotate freely in the sleeve.

[0073] The bottom of the flexible bag body 1 is connected to a rigid connector 13, which has a slot opening 11 that matches a rectangular slot 12. The opening of the flexible bag body 1 corresponds to the slot opening 11. There are three flexible bags 1.

[0074] The slot 10 is opened on the rigid connector 13; the slide groove 4 is detachably connected to the slot 10 so as to detachably connect the sleeve body 3 of the sleeve and the rigid connector 13 of the flexible assembly bag, thereby facilitating quick installation and disassembly of the flexible bag body 1 of the flexible assembly bag.

[0075] The zipper 2 is provided at the top of the flexible bag body 1 to realize the flexible bag body 1. The top of the flexible bag body 1 refers to the end of the flexible bag body 1 away from the rigid connector 13. The zipper 2 can realize the rapid opening and closing (opening or closing) of the flexible bag body 1.

[0076] The method for using the flexible divider comprises the following steps:

[0077] S1. Unfold the three flexible bag bodies 1 of the flexible divider, and connect the bottoms to the three rigid connectors 13 one by one. Through the cooperation of the slots 10 on the rigid connectors 13 and the slide grooves 4 on the sleeve body 3, the flexible assembly bag and the sleeve are detachably connected together, so that the slot openings 11 on the rigid connector 13 match the rectangular slots 12. Check whether the zippers 2 of the three flexible bag bodies 1 are zipped up, and insert the inner core 5 into the sleeve body 3 to match them.

[0078] S2. Turn one of the flexible bag bodies 1 upwards, rotate the inner core body 5 by rotating the knob 6 to close the sample inlet and outlet, open the zipper 2 of the flexible bag body 1 at the upper position, and ensure that the zipper 2 of the flexible bag body 1 at the lower position is closed;

[0079] S3. Pour the shrunken sample into the upper flexible bag 1, close the zipper 2 of the upper flexible bag 1, and rotate the inner core 5 by turning the knob 6 to open the sample inlet and outlet. The sample flows from the upper flexible bag 1 through the forward chute 7 and reverse chute 8 of the chute group and then into the lower flexible bag 1.

[0080] S4, after the sample reduction of the flexible bag body 1 at the upper position is completed, the inner core body 5 is rotated again by rotating the knob 6 so that the sample inlet and outlet are closed;

[0081] S5. Open the zippers 2 of the two flexible bags 1 at the lower position to collect the shrunken samples;

[0082] S6. Repeat steps S1-S5 until the sample reduction is completed.

[0083] After step S6, the following step S7 may be performed:

[0084] S7. After shrinking, remove the rigid connector 13 and the inner core 5 of the flexible bag body 1, wipe or rinse and dry them, and assemble them according to step S1 so that they can be used directly next time.

[0085] The shrunken sample is granular fertilizer.

[0086] Example 2

[0087] This embodiment provides a flexible divider for sampling granular fertilizers, which, based on the first embodiment, further includes the following configurations:

[0088] The flexible bag body 1 is made of transparent flexible polymer material, and the other parts (inner core, sleeve, rigid connector 13) can be made of metal or other materials (such as hard polymer). The structure is more stable and not easy to damage, ensuring that the reducer is durable and easy to clean.

[0089] Example 3

[0090] This embodiment provides a flexible divider for sampling granular fertilizers, which, based on the first embodiment, further includes the following configurations:

[0091] In this embodiment, the chute group includes 12 forward chute grooves 7 and 12 reverse chute grooves 8, and the lengths of the forward chute grooves 7 and the reverse chute grooves 8 (the length here is along the axial direction of the inner core 5) are both about 1 cm, which can be suitable for the size range of most granular fertilizers. The total length of the chute group is 20 cm-30 cm, which can ensure the reduction speed and reduction effect when the mass of more than 1 kg is commonly reduced, and the length is convenient for carrying.

[0092] Example 4

[0093] This embodiment provides a flexible divider for granular fertilizer sampling and a method for using the same. Based on the first embodiment, the following configuration is also included:

[0094] The inner core and sleeve are made of hard polymer materials;

[0095] In step S3, the shrunken sample is poured into the flexible bag body 1 in the upper position, the zipper 2 of the flexible bag body 1 in the upper position is closed, the flexible shrink divider is turned upside down so that the inner core 5 is at the top, and the flexible bag body 1 containing the shrunken sample is shaken. Then, the flexible shrink divider is turned upside down so that the flexible bag body 1 containing the shrunken sample returns to the upper position, and the inner core 5 is rotated by rotating the knob 6 to open the sample inlet and outlet. The sample is shrunken from the flexible bag body 1 in the upper position through the positive chute 7 and the reverse chute 8 of the chute group and then flows into the flexible bag body 1 in the lower position.

[0096] Although the methods disclosed in the embodiments of the present application are as described above, the contents described are only implementation methods adopted for ease of understanding. Any ordinary technician in this field should understand that any modifications and changes can be made in the form and details of implementation without departing from the spirit and scope disclosed in the present application. However, the scope of patent protection of the present invention shall still be based on the scope defined by the attached claims.

Claims

1. A flexible divider for sampling granular fertilizers, characterized in that: The flexible divider comprises an inner core, a sleeve, and a flexible assembly bag; The sleeve is sleeved on the outside of the inner core; The flexible assembly bag is detachably connected to the sleeve; The inner core comprises an inner core body (5), the inner core body (5) is provided with an inlet and outlet, and a chute group is arranged in the inlet and outlet; the inlet and outlet comprises an inlet and an outlet connected to the inlet; The sleeve comprises a sleeve body (3), and a rectangular slot (12) is provided on the sleeve body (3); When the rectangular slot (12) corresponds to the chute group, the sample inlet and outlet are opened, and when the rectangular slot (12) is staggered with the chute group, the sample inlet and outlet are closed; The flexible assembly bag comprises a flexible bag body (1), the bottom of the flexible bag body (1) is connected to a rigid connector (13), a slot opening (11) is provided on the rigid connector (13), and the slot opening (11) matches a rectangular slot (12).

2. The flexible divider for granular fertilizer sampling according to claim 1, characterized in that: The chute group includes a forward chute (7) and a reverse chute (8); The forward inclined grooves (7) and the reverse inclined grooves (8) are arranged alternately; Adjacent positive chute (7) and negative chute (8) are separated by chute partition plates (9).

3. The flexible divider for granular fertilizer sampling according to claim 2, characterized in that: The inner core (5) is cylindrical; The sample inlet and outlet include 1 sample inlet and 2 sample outlets; The inner core (5) is evenly provided with one sample inlet and two sample outlets at 120° intervals in the circumferential direction; The sample inlet and outlet ports are opened on the surface of the inner core (5) in parallel with the axial direction of the inner core (5); The chute group includes 10 to 15 forward chute grooves (7) and the same number of reverse chute grooves (8) as the forward chute grooves (7); The forward chute (7) is connected to the sample inlet and one of the sample outlets, and the reverse chute (8) is connected to the sample inlet and the other sample outlet.

4. The flexible divider for granular fertilizer sampling according to claim 1, characterized in that: The inner core further comprises a knob (6); The knob (6) is connected to the top of the inner core (5), and the knob (6) is used to drive the inner core (5) to rotate; The knob (6) points to the injection port so that the injection port can be quickly identified.

5. The flexible divider for granular fertilizer sampling according to claim 1, characterized in that: The sleeve further comprises a slide groove (4), and the slide groove (4) is provided on the sleeve body (3); The flexible assembly bag further comprises a slot (10), wherein the slot (10) is opened on the rigid connector (13); The slide groove (4) and the slot (10) are detachably connected so as to connect the sleeve and the flexible assembly bag.

6. The flexible divider for granular fertilizer sampling according to claim 1, characterized in that: The flexible assembly bag further comprises a bag body opening and closing member, wherein the bag body opening and closing member is used to open or close the flexible bag body (1); The bag opening and closing component is a zipper (2).

7. The flexible divider for granular fertilizer sampling according to claim 1, characterized in that: The sleeve body (3) is in the shape of a hollow cylinder, with a sealed bottom on one side and an opening on the other side; The sleeve body (3) is evenly provided with three rectangular slots (12) at 120° intervals in the circumferential direction; The length and width of the sample inlet and outlet ports correspond to the length and width of the rectangular slot (12), so that the sample inlet and outlet ports overlap with the rectangular slot (12); The outer side of one side of the bottom of the sealing band of the sleeve body (3) is provided with scales, and markings are made at least every 60 degrees to facilitate the accurate rotation of the inner core in clockwise and counterclockwise directions of 60 degrees.

8. The flexible divider for granular fertilizer sampling according to claim 1, characterized in that: The inner diameter of the sleeve body (3) is larger than the outer diameter of the inner core body (5), so that the inner core can rotate freely in the sleeve.

9. A method for using the flexible divider for granular fertilizer sampling according to any one of claims 1 to 8, characterized in that: The method for using the flexible divider comprises the following steps: S1, unfold the flexible bag body (1) of the flexible divider, connect the bottom to the rigid connector (13), detachably connect the flexible assembly bag to the sleeve, make the slot opening (11) on the rigid connector (13) match the rectangular slot (12), and insert the inner core into the sleeve; S2. Turn the sample inlet of the flexible divider upwards, rotate the inner core to close the sample inlet and outlet, open the flexible bag body (1) at the upper position, and ensure that the flexible bag body (1) at the lower position is closed; S3, pouring the shrunken sample into the upper flexible bag (1), closing the upper flexible bag (1), rotating the inner core to open the sample inlet and outlet, and allowing the sample to flow from the upper flexible bag (1) through the chute assembly into the lower flexible bag (1); S4. After the sample shrinkage of the flexible bag body (1) at the upper position is completed, the inner core is rotated again to close the sample inlet and outlet ports; S5. Open the flexible bag (1) at the lower position and collect the shrunken samples.

10. The method for operating the flexible divider for granular fertilizer sampling according to claim 9, characterized in that: After step S5, perform the following step S6: S6, repeat steps S1-S5 until the sample is reduced; After step S6, perform the following step S7: S7. After shrinking, remove the rigid connector (13) and the inner core of the flexible bag body (1), wipe or rinse and dry them, and assemble them according to step S1 so that they can be used directly next time.

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