Quantitative sample receiver for sampling granary

Abstract

The invention provides a quantitative sample receiving device for grain bin sampling, and relates to the technical field of grain bin sampling detection, the quantitative sample receiving device comprises a grain taking barrel, the grain taking barrel is of a cylindrical structure, walking rollers are arranged at the bottom of the grain taking barrel, a battery shell is arranged on the side wall of the grain taking barrel, an energy storage battery is arranged in the battery shell, and the energy storage battery is arranged in the grain taking barrel. A grain barrel cover is mounted at the top end of the grain taking barrel, a plurality of locking bolts are arranged on the surface of the grain barrel cover, and the locking bolts are circumferentially distributed on the surface of the grain barrel cover at equal intervals; the walking rollers are arranged at the bottom of the grain taking barrel, so that the grain taking barrel is convenient to move, sampling points at different positions are convenient to replace, multi-point sampling is achieved, it is effectively guaranteed that qualified samples are obtained, the sampling rod is designed by adopting an assembling mechanism and is matched with a plurality of extension rods to be connected, screwed and fastened, bottom detection sampling can be carried out at the maximum depth of 6 meters, and the sampling efficiency is improved. And the grain storage condition of the deep bottom of the grain depot can be effectively and easily obtained.

Description

Technical Field

[0001] The invention relates to the technical field of granary sampling and detection, in particular to a quantitative sample receiving device used for granary sampling. Background Art

[0002] Grain condition monitoring is an important part of the storage process. Generally, a sampling mechanism is used to obtain grain samples from the target area in the granary, and the grain samples are tested to obtain relevant information about the grain in the granary. At present, the sampling mechanism can generally only drill vertically into the granary, and the sampling range is small. In order to obtain grain samples from various areas in the granary, multiple samplings are required, which is inconvenient to operate.

[0003] The purpose of sampling is to take an appropriate number of representative samples from a large number of grain seeds for inspection. Whether the sampling is correct and whether the samples are representative directly affects the accuracy of the inspection results. The accuracy of the inspection results depends on the sampling technology and inspection technology, and sampling is a prerequisite. If the sampling is not carried out according to the prescribed procedures and the samples are not representative, then no matter how correct the inspection technology is, it is difficult to obtain correct inspection results. Incorrect inspection results will cause unnecessary losses to the next production.

[0004] At present, when sampling bulk grain, sampling tools are generally used for single-point sampling. After sampling at one sampling point, the sampling is transferred to the next sampling point for further sampling. When the sampling depth does not reach the required depth, manual operation is required to take over and then re-sample. For medium and large grain silos, multi-point sampling is required to ensure that qualified samples are obtained. The limitations of sampling depth and single-point sampling make the sample grain taken out in one sampling unrepresentative. Therefore, the sampling tools need to be moved frequently. The existing sampling tools are not easy to move. When moving to any position, they need to be connected to electricity separately, resulting in technical problems such as cumbersome grain sampling operations, slow sampling speed, and low sampling efficiency. Summary of the invention

[0005] In view of the problems in the prior art, the purpose of the present invention is to provide a quantitative sampler for granary sampling, so as to solve the technical problems described in the above background technology: the existing sampling tools are not easy to move, and they need to be separately wired and connected to electricity when moving to any position, resulting in complicated grain sampling operations, slow sampling speed and low sampling efficiency.

[0006] The technical problem to be solved by the present invention is achieved by adopting the following technical scheme: a quantitative sampler for sampling in a grain silo, comprising a grain taking barrel, the grain taking barrel is arranged as a cylindrical structure, the bottom of the grain taking barrel is arranged with a walking roller, the side wall of the grain taking barrel is arranged with a battery shell, the interior of the battery shell is arranged with an energy storage battery, a grain barrel cover is installed on the top of the grain taking barrel, a plurality of locking bolts are arranged on the surface of the grain barrel cover, and the plurality of locking bolts are distributed on the surface of the grain barrel cover at equal intervals around the circumference, the grain barrel cover is locked and fixed to the grain taking barrel by locking bolts, and the A handle is provided at the top of the grain barrel cover, and a grain suction port is provided at the top of the grain barrel cover. The top of the grain suction port is connected to a corrugated pipe, a grain suction port connecting sleeve is provided at one end of the corrugated pipe, and the grain suction port connecting sleeve is tightly connected to the top of the grain suction port through a spiral sleeve, and a connecting sleeve is provided at the other end of the corrugated pipe, and a sampling rod is connected to the surface of the connecting sleeve, and the sampling rod is set as a hollow round rod structure, and a conical head is provided at the top of the sampling rod, and a side suction port is opened on the outer wall surface of the sampling rod, and the side suction port is set on the surface of the sampling rod near the conical head.

[0007] As a preferred technical solution of the present invention, a grain sucking machine is fixedly installed on the inner wall of the grain barrel cover, a grain discharge pipe extends from the bottom of the grain sucking machine, the grain suction port is connected to the grain sucking machine, and the grain suction port is fixed to the top of the grain barrel cover.

[0008] As a preferred technical solution of the present invention, a servo motor 2 is fixedly installed inside the grain barrel cover, and a rotating shaft rod is extended downward from the servo motor 2. The rotating shaft rod is arranged near the periphery of the grain discharge pipe, and the rotating shaft rod is arranged parallel to the grain discharge pipe. A second sprinkler plate and a first sprinkler plate are arranged on the outer wall of the rotating shaft rod. The first sprinkler plate is arranged below the second sprinkler plate on the surface of the rotating shaft rod, and the first sprinkler plate and the second sprinkler plate are staggered on the surface of the rotating shaft rod.

[0009] As a preferred technical solution of the present invention, a weighing cylinder is arranged inside the grain taking cylinder, a sampling box is arranged at the bottom of the weighing cylinder, a grain box placement opening is opened on the surface of the grain taking cylinder near the bottom of the grain taking cylinder, and the grain box placement opening is arranged below the sampling box.

[0010] As a preferred technical solution of the present invention, the weighing cylinder is arranged as a cylindrical structure, the bottom of the inner wall of the weighing cylinder is provided with a slope with a conical surface structure, the bottom end of the slope is provided with a weighing cylinder grain discharge port, the bottom end of the weighing cylinder is provided with an electric push rod fixedly installed on one side, the other side of the bottom end of the weighing cylinder is provided with a support plate, the surface of the support plate is slidably connected with a sealing support plate, the electric push rod extends a push rod in the direction of the sealing support plate, and the top end of the push rod of the electric push rod is fixedly connected to the sealing support plate.

[0011] As a preferred technical solution of the present invention, a spring scale base is fixedly provided on the inner wall of the grain taking cylinder, and the bottom of the weighing cylinder is arranged on the top of the spring scale base.

[0012] As a preferred technical solution of the present invention, the sampling box includes a grain feeding port fixed inside the grain taking barrel, and there are a plurality of grain feeding ports in total, and a grain leveling bin is opened at the bottom of the plurality of grain feeding ports, and the grain leveling bin is a circular cavity bin, and the inner wall of the grain leveling bin is rotatably connected with a grain spreading rod, and the surface of the grain spreading rod is provided with a plurality of auger pieces with opposite rotation directions, and a plurality of grain discharge ports are opened at the bottom of the grain leveling bin, and a servo motor is fixedly installed on the inner wall of the battery housing, and the grain spreading rod is provided with a servo motor to drive rotation.

[0013] As a preferred technical solution of the present invention, the top surface of the feed port is provided with a material guiding slope.

[0014] As a preferred technical solution of the present invention, a grain-leveling guide plate is provided at the top of the sampling box, and the grain-leveling guide plate is arranged in the middle position of the plurality of grain feeding ports, and the grain-leveling guide plate is a slope inclined from the middle to both ends.

[0015] As a preferred technical solution of the present invention, a plurality of grain box rollers are provided on the bottom surface of the grain box placement opening.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention provides walking rollers at the bottom of the grain-taking barrel to facilitate the movement of the grain-taking barrel and to change sampling points at different positions, thereby realizing multi-point sampling and effectively ensuring that qualified samples are obtained. The sampling rod adopts an assembly mechanism design and is connected and screwed with a plurality of extension rods, so that the sampling can be carried out at a maximum depth of 6 meters, and the grain storage situation at the deep bottom of the grain depot can be effectively and easily obtained. A battery shell is provided on the side wall of the grain-taking barrel, and an energy storage battery is provided inside the battery shell. The energy storage battery is used for mobile and portable automatic power supply to carry out multi-point sampling. The process is very convenient, there is no need to pull a separate power cord, the operation is simple and trouble-free, and the sampling efficiency is high. A grain barrel cover is installed on the top of the grain barrel, and a handle is provided on the top of the grain barrel cover to facilitate the lifting and moving of the grain barrel, thereby improving the convenience of the grain barrel transfer process and the ease of operation. A grain suction port is provided on the top of the grain barrel cover, and the top of the grain suction port is connected with a corrugated pipe that can be flexibly bent at will. The flexible bending of the corrugated pipe can realize the insertion of the sampling rod into the grain in the grain depot at any angle, which is convenient for the diversity of sampling and convenient for sampling and taking grain in the corners of the grain depot.

[0018] The present invention arranges the sampling rod as a hollow round rod structure, and the top of the sampling rod is provided with a conical head, which facilitates the sampling rod to be inserted into the grain and reduces resistance during the insertion process. At the same time, a side suction port is opened on the outer wall surface of the sampling rod, and the grain is pumped into the grain collection tube through the sampling rod and the corrugated pipe through the side suction port, thereby achieving easy sampling. By arranging the side suction port on the surface of the sampling rod close to the conical head, it is convenient to extract the grain at the bottom more deeply.

[0019] The invention provides a grain box placement opening on the outer wall of the grain taking cylinder, so that the grain storage box is conveniently placed in the grain box placement opening, and the grain box is easily inserted and pulled out through the grain box roller at the bottom of the grain box placement opening. The grain taking cylinder draws grain into the weighing cylinder through the grain suction machine, and the weighing cylinder is used to perform quantitative sampling of the locked sampling grain. The symmetrical measuring cylinder of the spring balance base at the bottom of the weighing cylinder is used to weigh the grain, and the grain drawn by the grain suction machine is put into the weighing cylinder. When the weight of the weighing cylinder reaches the set weight, the grain suction machine stops working to achieve the effect of automatic fixed weight sampling first, and then the grain is automatically weighed. After the automated fixed-weight sampling is completed, the grain discharge port of the weighing cylinder slides into the interior of the tray through the sealed tray and is opened. The grain in the weighing cylinder uses gravity to fall into the sampling box. In the process of the sampling box rolling down, the grain is dispersed and guided and swung to achieve equal and uniform sampling. The evenly sampled grain automatically falls into the grain storage box for collection and sampling. Through automatic fixed-weight sampling and automatic equal and uniform sampling with the sampling box, the tedious steps of manual sampling are effectively reduced. The grain samples taken are evenly matched and can be directly taken for testing. The testing efficiency is high and the quality control rate of the grain depot is increased.

[0020] The present invention provides a rotating shaft rod which rotates cyclically and uniformly at the bottom of the grain discharge pipe of the grain suction machine, which drives the staggered supporting plate 2 and the supporting plate 1 to rotate during the rotation process, and the supporting plate 2 and the supporting plate 1 are used to staggeredly support and spread the grain at the bottom of the grain discharge pipe. The grain discharged from the bottom of the grain discharge pipe is staggered between the staggered supporting plate 2 and the supporting plate 1, so that the sampled grain is evenly spread, which is convenient for uniform sampling in the later stage. The grain discharged from the grain discharge pipe is evenly spread in the continuous reciprocating process of spreading, vertically falling, and spreading by the supporting plate 2, which is beneficial to improving the sampling uniformity of the sampled grain.

[0021] The present invention provides a grain-leveling guide support plate at the top of the sampling box, and evenly guides and spreads the grain discharged from the bottom of the weighing cylinder toward the grain feeding ports on both sides of the sampling box through the grain-leveling guide support plate, so that the grain discharged from the bottom of the weighing cylinder is evenly spread in the grain feeding port at the top of the sampling box, and the grain passes through a grain spreading rod that continuously changes its direction back and forth inside the grain feeding port. A plurality of auger pieces with opposite rotation directions are provided on the surface of the grain spreading rod, and the spiral direction of the auger pieces is utilized to continuously change the guide trajectory of the grain fed into the grain feeding port, so that the grain feeding port can evenly reciprocate and transform the grain fed into the feeding port to the grain discharge port below, and discharge the grain downward into the grain storage box through the grain discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the appearance structure of the quantitative sample receiving device used for granary sampling of the present invention;

[0024] Figure 2 It is a front cross-sectional structural schematic diagram of the quantitative sample receiving device used for granary sampling of the present invention;

[0025] Figure 3 This is a schematic diagram of the top view of the appearance structure of the grain dispensing box of the present invention in the grain taking barrel;

[0026] Figure 4 The present invention is attached to the specification Figure 2 A local enlarged view of point A;

[0027] Figure 5 The present invention is attached to the specification Figure 2 A partial enlarged view of point B;

[0028] Figure 6 It is a schematic diagram of the structure of several extension rods of the present invention;

[0029] Figure 7 It is a schematic diagram of the top view of the rotating shaft rod, the second supporting plate and the first supporting plate of the present invention;

[0030] In the figure: grain barrel 1, walking roller 2, grain box placement port 3, grain storage box 4, battery shell 5, grain barrel cover 6, locking bolt 7, handle 8, grain suction port 9, grain suction port connecting sleeve 10, corrugated pipe 11, connecting sleeve port 12, sampling rod 13, side suction port 14, conical head 15, grain box roller 16, energy storage battery 17, servo motor 1 18, grain suction machine 19, servo motor 2 20, rotating shaft rod 21, Spreading plate 22, slope 23, electronic spring scale 24, grain feeding port 25, grain uniformity bin 26, grain discharge port 27, material guiding slope 28, grain spreading rod 29, weighing cylinder 30, spring scale base 31, support plate 32, sealing support plate 33, push rod 34, electric push rod 35, grain discharge pipe 36, spreading plate 1 37, grain discharge port of weighing cylinder 38, grain uniformity guide support plate 39, extension rod 40, control display panel 41. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific diagrams. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other without conflict.

[0032] Example 1

[0033] See also Figure 1-Figure 7, which is a schematic diagram of the overall structure of a quantitative sampler for granary sampling,

[0034] A quantitative sampler for granary sampling, comprising a grain taking barrel 1, the grain taking barrel 1 is set as a cylindrical structure, the outer wall of the grain taking barrel 1 is provided with a control display panel 41, the control display panel 41 integrates display parameters and control setting functions as an integrated panel, the bottom of the grain taking barrel 1 is provided with a walking roller 2, the side wall of the grain taking barrel 1 is provided with a battery shell 5, the battery shell 5 is provided with an energy storage battery 17, the top of the grain taking barrel 1 is installed with a grain barrel cover 6, the surface of the grain barrel cover 6 is provided with a plurality of locking bolts 7, the plurality of locking bolts 7 are distributed on the surface of the grain barrel cover 6 at equal intervals around the circumference, and the grain barrel cover 6 is locked with the grain taking barrel 1 by the locking bolts 7 The grain barrel cover 6 is fixed with a handle 8 at the top, and a grain suction port 9 is provided at the top. The top of the grain suction port 9 is connected with a corrugated pipe 11. A grain suction port connecting sleeve 10 is provided at one end of the corrugated pipe 11. The grain suction port connecting sleeve 10 is tightly connected to the top of the grain suction port 9 through a spiral sleeve. A connecting sleeve 12 is provided at the other end of the corrugated pipe 11. A sampling rod 13 is connected to the surface of the connecting sleeve 12. The sampling rod 13 is set as a hollow round rod structure. A conical head 15 is provided at the top of the sampling rod 13. A side suction port 14 is opened on the outer wall surface of the sampling rod 13. The side suction port 14 is set on the surface of the sampling rod 13 near the conical head 15.

[0035] Specifically, in this embodiment, the present invention sets the sampling rod 13 as a hollow round rod structure, and a conical head 15 is set at the top of the sampling rod 13. The conical head 15 facilitates the insertion of the sampling rod 13 into the grain, and reduces the resistance during the insertion process. At the same time, a side suction port 14 is opened on the outer wall surface of the sampling rod 13. The grain is pumped into the grain barrel 1 through the side suction port 14 via the sampling rod 13 and the corrugated pipe 11, so that easy sampling is achieved. By setting the side suction port 14 on the surface of the sampling rod 13 close to the conical head 15, it is convenient to extract the bottom grain more deeply.

[0036] Specifically, in this embodiment, the present invention is provided with a walking roller 2 at the bottom of the grain taking barrel 1, so as to facilitate the movement of the grain taking barrel 1 and replace the sampling points at different positions, so as to realize multi-point sampling and effectively ensure that qualified samples are obtained. The sampling rod 13 adopts an assembly mechanism design, and is screwed and fastened with a plurality of extension rods 40, so that the maximum depth of 6 meters can be used for bottom sampling, and the grain storage situation at the deep bottom of the grain depot can be effectively and easily obtained. A battery housing 5 is provided on the side wall of the grain taking barrel 1, and an energy storage battery 17 is provided inside the battery housing 5. The energy storage battery 17 is used for mobile and portable automatic power supply, and the grain storage situation at the deep bottom of the grain depot can be effectively and easily obtained. The multi-point sampling process is very convenient, there is no need to pull a separate power cord, the operation is simple and trouble-free, and the sampling efficiency is high. A grain barrel cover 6 is installed on the top of the grain barrel 1, and a handle 8 is arranged on the top of the grain barrel cover 6, which is convenient for lifting and moving the grain barrel 1, thereby improving the convenience of the transfer process of the grain barrel 1 and the ease of operation. A grain suction port 9 is arranged on the top of the grain barrel cover 6, and the top of the grain suction port 9 is connected with a corrugated pipe 11 that can be flexibly bent at will. The flexible bending of the corrugated pipe 11 can realize that the sampling rod 13 can be inserted into the grain in the grain depot at any angle, which is convenient for the diversity of sampling and for sampling and taking grain in the corners of the grain depot.

[0037] The inner wall of the grain barrel cover 6 is fixedly installed with a grain suction machine 19, a grain discharge pipe 36 extends from the bottom of the grain suction machine 19, and the grain suction port 9 is connected to the grain suction machine 19, and the grain suction port 9 is fixed to the top of the grain barrel cover 6. It is convenient for the corrugated pipe 11 to be connected and disassembled, and the portability of multi-point sampling is improved.

[0038] A servo motor 20 is fixedly installed inside the grain barrel cover 6, and a rotating shaft rod 21 extends downward from the servo motor 20. The rotating shaft rod 21 is arranged near the periphery of the grain discharge pipe 36, and the rotating shaft rod 21 is arranged parallel to the grain discharge pipe 36. The outer wall of the rotating shaft rod 21 is provided with a sprinkler plate 22 and a sprinkler plate 1 37. The sprinkler plate 1 37 is arranged on the surface of the rotating shaft rod 21 below the sprinkler plate 22, and the sprinkler plate 1 37 and the sprinkler plate 22 are staggered on the surface of the rotating shaft rod 21.

[0039] Specifically, the present invention is provided with a rotating shaft rod 21 that rotates cyclically and uniformly at the bottom of the grain discharge pipe 36 of the grain suction machine 19, which drives the staggered supporting plates 22 and 37 to rotate during the rotation process, and the supporting plates 22 and 37 are used to staggeredly support and spread the grain at the bottom of the grain discharge pipe 36. The grain discharged from the bottom of the grain discharge pipe 36 is staggered between the staggered supporting plates 22 and 37, so that the sampled grain is evenly spread, which is convenient for uniform sampling in the later stage. The grain discharged from the grain discharge pipe 36 is evenly spread in the continuous reciprocating process of spreading by the supporting plates 22, vertically falling, and spreading by the supporting plates 37, which is beneficial to improving the sampling uniformity of the sampled grain.

[0040] A weighing cylinder 30 is arranged inside the grain taking cylinder 1, a sampling box is arranged at the bottom of the weighing cylinder 30, a grain box placement opening 3 is opened on the surface of the grain taking cylinder 1 near the bottom of the grain taking cylinder 1, and the grain box placement opening 3 is arranged below the sampling box.

[0041] The weighing cylinder 30 is arranged as a cylindrical structure, and a slope 23 with a conical surface structure is arranged at the bottom of the inner wall of the weighing cylinder 30, and a weighing cylinder grain discharge port 38 is opened at the bottom end of the slope 23. An electric push rod 35 is fixedly installed on one side of the bottom end of the weighing cylinder 30, and a support plate 32 is arranged on the other side of the bottom end of the weighing cylinder 30. The surface of the support plate 32 is slidably connected with a sealing support plate 33, and the electric push rod 35 extends a push rod 34 toward the direction of the sealing support plate 33, and the top end of the push rod 34 of the electric push rod 35 is fixedly connected to the sealing support plate 33.

[0042] A spring balance base 31 is fixedly disposed on the inner wall of the grain taking cylinder 1 , and the bottom of the weighing cylinder 30 is disposed on the top of the spring balance base 31 .

[0043] The present invention provides a grain box placement opening 3 on the outer wall of the grain taking cylinder 1, so that the grain storage box 4 is conveniently placed in the grain box placement opening 3. The grain box roller 16 at the bottom of the grain box placement opening 3 realizes the simplicity of the grain storage box 4 insertion and extraction process. The grain taking cylinder 1 extracts grain into the weighing cylinder 30 through the grain suction machine 19, and the weighing cylinder 30 is used to perform quantitative sampling of the locked sampling grain. The electronic spring scale 24 on the spring scale base 31 at the bottom of the weighing cylinder 30 is used to weigh the measuring cylinder 30. The grain extracted by the grain suction machine 19 is placed in the weighing cylinder 30. When the weight of the weighing cylinder 30 reaches the set weight, the grain suction machine 19 stops working. First, the effect of automatic fixed-weight sampling is achieved. After the automatic fixed-weight sampling is completed, the grain outlet 38 of the weighing cylinder 30 slides into the interior of the support plate 32 through the sealing support plate 33 and is opened. The grain in the weighing cylinder 30 uses gravity to fall into the sampling box. In the process of the sampling box rolling down, the grain is dispersed and guided and swung to achieve equal and uniform sampling. The evenly sampled grain automatically falls into the grain storage box 4 for collection and sampling. Through automatic fixed-weight sampling and automatic equal and uniform sampling with the sampling box, the tedious steps of manual sampling are effectively reduced. The grain samples taken are evenly matched and can be directly taken for testing. The testing efficiency is high and the quality control rate of the grain depot is increased.

[0044] The sampling box includes a feeding port 25 fixed inside the grain taking barrel 1. There are a plurality of feeding ports 25. A grain distribution bin 26 is provided at the bottom of the plurality of feeding ports 25. The grain distribution bin 26 is a round cavity bin. The inner wall of the grain distribution bin 26 is rotatably connected to a grain spreading rod 29. The surface of the grain spreading rod 29 is provided with a plurality of auger blades with opposite rotation directions. A plurality of grain discharge ports 27 are provided at the bottom of the grain distribution bin 26. A servo motor 18 is fixedly installed on the inner wall of the battery housing 5. The grain spreading rod 29 is provided with a servo motor 18 to drive the rotation. The working process of the servo motor 18 is to continuously rotate alternately in forward and reverse directions. Convenient to drive

[0045] The top surface of the grain feeding port 25 is provided with a guiding slope 28 , which can guide the falling grains, thereby facilitating the grains to fall into the feeding port 25 more easily.

[0046] A grain-leveling guide support plate 39 is disposed at the top of the sample sorting box. The grain-leveling guide support plate 39 is disposed in the middle of the plurality of grain feeding ports 25. The grain-leveling guide support plate 39 is an inclined surface inclined from the middle to the two ends.

[0047] Specifically, in the present embodiment, the present invention provides a grain box placement opening 3 on the outer wall of the grain taking cylinder 1, so as to facilitate placing the grain storage box 4 in the grain box placement opening 3, and realizes the simplicity of inserting and removing the grain storage box 4 through the grain box roller 16 at the bottom of the grain box placement opening 3, and the grain taking cylinder 1 draws grain into the weighing cylinder 30 through the grain suction machine 19, and the weighing cylinder 30 is used to perform quantitative sampling of the locked sampling grain, and the electronic spring scale 24 on the spring scale base 31 at the bottom of the weighing cylinder 30 is used to weigh the measuring cylinder 30, and the grain drawn by the grain suction machine 19 is placed in the weighing cylinder 30. When the weight of the weighing cylinder 30 reaches the set weight, the grain suction machine 19 Stop working to achieve the effect of automatic fixed weight sampling first. After the automatic fixed weight sampling is completed, the grain outlet 38 of the weighing cylinder 30 slides into the interior of the support plate 32 through the sealing support plate 33 and is opened, and the grain in the weighing cylinder 30 uses gravity to fall downward into the sampling box. In the process of the sampling box rolling down, the grain is dispersed and guided and swung to achieve equal and uniform sampling. The evenly sampled grain automatically falls into the grain storage box 4 for collection and sampling. Through automatic fixed weight sampling and automatic equal and uniform sampling of the sampling box, the tedious steps of manual sampling are effectively reduced. The grain samples taken are evenly matched and can be directly taken for testing. The testing efficiency is high and the quality control rate of the grain depot is increased.

[0048] Specifically, in this embodiment, the present invention provides a grain uniformity guide support plate 39 at the top of the sampling box, and the grain uniformity guide support plate 39 is used to uniformly guide and spread the grain discharged from the bottom of the weighing cylinder 30 toward the grain feeding port on both sides of the sampling box, so that the grain discharged from the bottom of the weighing cylinder 30 is evenly spread in the grain feeding port at the top of the sampling box, and the grain passes through a grain spreading rod that continuously changes its direction back and forth inside the grain feeding port. A plurality of auger pieces with opposite rotation directions are provided on the surface of the grain spreading rod, and the spiral direction of the auger piece is used to continuously change the guide trajectory of the grain fed into the grain feeding port, so that the grain feeding port can uniformly reciprocate and transform the grain fed into the feeding port to the grain discharge port below, and discharge it downward into the grain storage box 4 through the grain discharge port.

[0049] The bottom surface of the grain box placement opening 3 is provided with a plurality of grain box rollers 16. The present invention provides a grain box placement opening 3 on the outer wall of the grain taking cylinder 1, so that the grain storage box 4 is conveniently placed in the grain box placement opening 3, and the grain box rollers 16 at the bottom of the grain box placement opening 3 facilitate the insertion and extraction of the grain storage box 4.

[0050] Example 2

[0051] See also Figure 1-Figure 7 This embodiment is similar to the above-mentioned embodiment 1, and the similarities are not described in this embodiment. The specific differences are:

[0052] A quantitative sampler for granary sampling, comprising a grain taking barrel 1, the grain taking barrel 1 is set as a cylindrical structure, the outer wall of the grain taking barrel 1 is provided with a control display panel 41, the control display panel 41 integrates display parameters and control setting functions as an integrated panel, the bottom of the grain taking barrel 1 is provided with a walking roller 2, the side wall of the grain taking barrel 1 is provided with a battery shell 5, the battery shell 5 is provided with an energy storage battery 17, the top of the grain taking barrel 1 is installed with a grain barrel cover 6, the surface of the grain barrel cover 6 is provided with a plurality of locking bolts 7, the plurality of locking bolts 7 are distributed on the surface of the grain barrel cover 6 at equal intervals around the circumference, and the grain barrel cover 6 is locked with the grain taking barrel 1 by the locking bolts 7 The grain barrel cover 6 is fixed with a handle 8 at the top, and a grain suction port 9 is provided at the top. The top of the grain suction port 9 is connected with a corrugated pipe 11. A grain suction port connecting sleeve 10 is provided at one end of the corrugated pipe 11. The grain suction port connecting sleeve 10 is tightly connected to the top of the grain suction port 9 through a spiral sleeve. A connecting sleeve 12 is provided at the other end of the corrugated pipe 11. A sampling rod 13 is connected to the surface of the connecting sleeve 12. The sampling rod 13 is set as a hollow round rod structure. A conical head 15 is provided at the top of the sampling rod 13. A side suction port 14 is opened on the outer wall surface of the sampling rod 13. The side suction port 14 is set on the surface of the sampling rod 13 near the conical head 15.

[0053] The present invention is provided with a walking roller 2 at the bottom of the grain-taking barrel 1, so as to facilitate the movement of the grain-taking barrel 1, change the sampling points at different positions, realize multi-point sampling, and effectively ensure that qualified samples are obtained. The sampling rod 13 adopts an assembly mechanism design, and is connected and fastened with a plurality of extension rods 40, wherein each extension rod 40 is a hollow tube structure, and the two ends of the extension rod 40 are provided with threaded connections that cooperate with each other. Through the connection of multiple extension rods 40, the sampling rod 13 and the corrugated pipe 11 can be connected to the bottom of the grain depot with a maximum depth of 6 meters to conduct bottom sampling, and the grain storage situation at the deep bottom of the grain depot can be effectively and easily obtained.

[0054] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and the description in the specification are only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A quantitative sampler for granary sampling, characterized in that: The invention comprises a grain taking barrel (1), wherein the grain taking barrel (1) is configured as a cylindrical structure, a walking roller (2) is provided at the bottom of the grain taking barrel (1), a battery housing (5) is provided on the side wall of the grain taking barrel (1), a storage battery (17) is provided inside the battery housing (5), a grain barrel cover (6) is installed at the top of the grain taking barrel (1), a handle (8) is provided at the top of the grain barrel cover (6), a grain suction port (9) is provided at the top of the grain suction port (9), a corrugated pipe (11) is connected to the top of the grain suction port (9), and a suction port (11) is provided at one end of the corrugated pipe (11). A grain inlet connection sleeve (10), wherein the grain inlet connection sleeve (10) is tightly connected to the top end of the grain inlet (9) through a spiral sleeve, and the other end of the corrugated pipe (11) is provided with a connection sleeve opening (12), and the surface of the connection sleeve opening (12) is connected with a sampling rod (13), and the sampling rod (13) is arranged as a hollow round rod structure, and the top end of the sampling rod (13) is provided with a conical head (15), and the outer wall surface of the sampling rod (13) is provided with a side suction port (14), and the side suction port (14) is arranged on the surface of the sampling rod (13) at a position close to the conical head (15).

2. A quantitative sample receiving device for granary sampling according to claim 1, characterized in that: A grain suction machine (19) is fixedly mounted on the inner wall of the grain barrel cover (6), a grain discharge pipe (36) extends from the bottom of the grain suction machine (19), the grain suction port (9) is connected to the grain suction machine (19), and the grain suction port (9) is fixed to the top of the grain barrel cover (6).

3. A quantitative sample receiving device for granary sampling according to claim 2, characterized in that: A servo motor 2 (20) is fixedly installed inside the grain barrel cover (6), and a rotating shaft rod (21) extends downward from the servo motor 2 (20). The rotating shaft rod (21) is arranged near the periphery of the grain discharge pipe (36). The rotating shaft rod (21) and the grain discharge pipe (36) are arranged in parallel. The outer wall of the rotating shaft rod (21) is provided with a second sprinkler plate (22) and a first sprinkler plate (37). The first sprinkler plate (37) is arranged on the surface of the rotating shaft rod (21) below the second sprinkler plate (22). The first sprinkler plate (37) and the second sprinkler plate (22) are staggered on the surface of the rotating shaft rod (21).

4. The quantitative sample receiving device for granary sampling according to claim 1, characterized in that: A weighing cylinder (30) is arranged inside the grain taking cylinder (1), a sampling box is arranged at the bottom of the weighing cylinder (30), a grain box placement opening (3) is opened on the surface of the grain taking cylinder (1) near the bottom of the grain taking cylinder (1), and the grain box placement opening (3) is arranged below the sampling box.

5. A quantitative sample receiving device for granary sampling according to claim 4, characterized in that: The weighing cylinder (30) is configured as a cylindrical structure, the bottom of the inner wall of the weighing cylinder (30) is provided with a slope (23) of a conical surface structure, the bottom end of the slope (23) is provided with a weighing cylinder grain discharge port (38), the bottom end of the weighing cylinder (30) is provided with an electric push rod (35) fixedly installed on one side, the other side of the bottom end of the weighing cylinder (30) is provided with a support plate (32), the surface of the support plate (32) is slidably connected with a sealing support plate (33), the electric push rod (35) is provided with a push rod (34) extending in the direction of the sealing support plate (33), and the top end of the push rod (34) of the electric push rod (35) is fixedly connected to the sealing support plate (33).

6. A quantitative sample receiving device for granary sampling according to claim 5, characterized in that: A spring scale base (31) is fixedly arranged on the inner wall of the grain taking cylinder (1), and the bottom of the weighing cylinder (30) is arranged on the top of the spring scale base (31).

7. A quantitative sample receiving device for granary sampling according to claim 4, characterized in that: The sampling box comprises a grain feeding port (25) fixed inside the grain taking barrel (1), and the grain feeding port (25) is provided with a plurality of grain feeding ports (25), and a grain leveling bin (26) is provided at the bottom of the plurality of grain feeding ports (25), and the grain leveling bin (26) is a circular cavity bin, and the inner wall of the grain leveling bin (26) is rotatably connected to a grain spreading rod (29), and the surface of the grain spreading rod (29) is provided with a plurality of auger blades with opposite rotation directions, and the bottom of the grain leveling bin (26) is provided with a plurality of grain discharge ports (27), and a servo motor (18) is fixedly installed on the inner wall of the battery housing (5), and the grain spreading rod (29) is provided with a servo motor (18) to drive the rotation.

8. The quantitative sample receiving device for granary sampling according to claim 7, characterized in that: The top surface of the food feeding port (25) is provided with a material guiding inclined surface (28).

9. A quantitative sample receiving device for granary sampling according to claim 8, characterized in that: A grain-leveling guide support plate (39) is arranged at the top of the sample sorting box. The grain-leveling guide support plate (39) is arranged in the middle of the plurality of grain feeding ports (25). The grain-leveling guide support plate (39) is an inclined surface inclined from the middle toward both ends.

10. The quantitative sample receiving device for granary sampling according to claim 8, characterized in that: A plurality of grain box rollers (16) are arranged on the bottom surface of the grain box placement opening (3).

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