Automatic grain sampling and inspection system

Abstract

The utility model discloses an automatic grain sampling and inspection system, which is characterized in that a sampling machine is provided with a sampling input pipe and is connected with a sample buffer bin, a guide bin is connected below the sample buffer bin, a sampling valve is arranged between flanges of the sample buffer bin and the guide bin, and the downstream of the guide bin is connected with a distribution box body; the distribution box body is fixedly mounted on the distribution mounting bracket, a dry food outlet and a wet food outlet are formed below the distribution box body, a channel switching structure is arranged on the distribution box body, a dry food receiving hopper is arranged below the dry food outlet, and a wet food receiving hopper is arranged at the wet food outlet and is respectively connected with a food conveying pipe; the grain conveying pipe is connected with the dry grain discharging bin and the wet grain discharging bin, discharging ports are formed in the bottom of the dry grain discharging bin and the bottom of the wet grain discharging bin, and blanking boxes are arranged below the discharging ports. According to the system, the grain in the grain truck can be sampled and then subjected to dry and wet effective classification, the sampling efficiency is improved, meanwhile, the accuracy of grain inspection is improved, and the storage quality safety of the grain is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of grain detection, especially relates to a kind of grain automatic sampling and inspection system. BACKGROUND

[0002] The quality of grain purchased directly affects the quality safety during grain storage, and accurately determining the quality information such as grain grade is crucial for grain storage rotation.In actual storage work, grain storage units determine the grade of grain according to its quality, and different grades are subject to different purchase prices.

[0003] At present, the existing grain cutting detection needs to take samples through the sampling machine first, and then the grain samples are manually sent to the laboratory for testing by the detection personnel after sampling.Patent No.202411771915.2 discloses a sampling system, which is provided with a sampling machine to perform sampling, and then a negative pressure machine is used to extract the samples into a temporary storage cabinet, and finally into a sample bin to complete the sampling.When the sampling machine performs sampling on the grain loaded in the grain car, the humidity of the sampled grain will change due to different storage times, and the sampled grain cannot be effectively classified after sampling, resulting in that the sampled grain is not representative during detection, affecting the accuracy of detection. SUMMARY

[0004] The technical problem to be solved by the utility model is a kind of grain automatic sampling and inspection system, which can effectively classify the dry and wet grain in the grain car after sampling, speed up the sampling efficiency, improve the accuracy of grain detection, and ensure the storage quality and safety of grain.

[0005] The utility model discloses a kind of automatic sampling and inspection systems of grain, including sampling library, installation platform is equipped on the sampling library, sampling machine is installed on the installation platform, grain in the sampling library grain car is picked by the sampling machine, sampling input pipe is equipped on the sampling machine and is inserted into the sampling library, the sampling input pipe is connected with the sample buffer storehouse in the sampling library, the flange of the sample buffer storehouse is connected with the guide storehouse below, the flange between the sample buffer storehouse and the guide storehouse is equipped with the sampling valve that controls the opening and closing of intercommunication, the sampling library is equipped with the support seat of supporting sample buffer storehouse and guide storehouse, the downstream of the guide storehouse is connected with the distribution box in the sampling library by grain input pipe, the installation position of the guide storehouse is higher than distribution box, the distribution box is fixedly installed on distribution mounting bracket, distribution box is equipped with dry grain outlet and wet grain outlet below, distribution box is equipped with the passage switching structure that makes grain input pipe and dry grain outlet or wet grain outlet intercommunication, dry grain receiving hopper is equipped below dry grain outlet, wet grain receiving hopper is equipped with wet grain outlet, dry grain receiving hopper and wet grain receiving hopper are fixedly installed on distribution mounting bracket respectively, dry grain receiving hopper and wet grain receiving hopper are connected with grain conveying pipe respectively, the grain conveying pipe of dry grain receiving hopper and wet grain receiving hopper is connected with dry grain discharge bin and wet grain discharge bin in the sampling library respectively, dry grain discharge bin and wet grain discharge bin are fixedly installed in the sampling library by discharge bin suspension bracket, the bottom of dry grain discharge bin and wet grain discharge bin is equipped with discharge port, the discharge port of dry grain discharge bin and wet grain discharge bin is equipped with the openable and closable plugging baffle, the discharge port of dry grain discharge bin and wet grain discharge bin is equipped with drop box below, the sampling library is further equipped with the negative pressure machine that carries out negative pressure extraction to sample buffer storehouse, dry grain discharge bin and wet grain discharge bin by negative pressure pipeline, the filter device that prevents grain from being extracted is equipped in sample buffer storehouse, dry grain discharge bin and wet grain discharge bin.

[0006] As a preferred scheme, the passage switching structure includes a distribution valve rotatably installed in the distribution box, the distribution valve extends out a deflection rod through the distribution box, one side of the distribution box is provided with a deflection mounting platform, a channel switching cylinder is hingedly installed on the deflection mounting platform, the piston rod of the channel switching cylinder is hingedly connected with the deflection rod, and the distribution valve is driven to rotate by the channel switching cylinder to switch the opening and closing of the dry grain outlet and the wet grain outlet.

[0007] As a preferred scheme, the distribution box includes an upper distribution box and a lower distribution box, the upper distribution box and the lower distribution box are fixedly connected by flanges, the grain input pipe is in communication with the upper distribution box, the lower distribution box is connected with the dry grain outlet and the wet grain outlet downstream, and the distribution valve is arranged in the lower distribution box.

[0008] As a preferred scheme, the dry food receiving hopper and the wet food receiving hopper are of the same structure, the dry food receiving hopper is a conical leakage hopper, a transition pipe is installed below the conical leakage hopper through a flange, the transition pipe is connected with a grain conveying pipe, a mounting panel is arranged on the grain conveying pipe and is screwed to the transition pipe, and a hopper support is arranged below the conical leakage hopper and is fixed to a distribution mounting support to support the conical leakage hopper.

[0009] As a preferred scheme, the distribution mounting support comprises an upper distribution mounting frame for suspending and mounting an upper distribution box and a lower distribution box and a lower distribution mounting frame for mounting the dry food receiving hopper and the wet food receiving hopper through a hopper support, the upper distribution mounting frame and the lower distribution mounting frame are both composed of a plurality of strip-shaped rods, the strip-shaped rods on the upper distribution mounting frame form a cross shape, the upper distribution box and the lower distribution box are mounted at the cross shape of the upper distribution mounting frame through a flange structure, the strip-shaped rods on the lower distribution mounting frame form two cross shapes, and the two cross shapes of the lower distribution mounting frame correspond to the installation of the hopper supports of the dry food receiving hopper and the wet food receiving hopper respectively.

[0010] As a preferred scheme, the dry food discharge bin and the wet food discharge bin are further provided with a dry food buffer bin and a wet food buffer bin, the dry food buffer bin and the dry food discharge bin and the wet food buffer bin and the wet food discharge bin are of the same structure, a material falling valve for controlling communication is arranged between the dry food buffer bin and the dry food discharge bin, the grain conveying pipe is connected to the side wall of the dry food buffer bin, and the negative pressure pipeline is connected to the top of the dry food buffer bin.

[0011] As a preferred scheme, the filter device is a filter screen, a top cover is mounted on the top of the dry food buffer bin through a snap lock, the filter screen is arranged between the top cover and the dry food buffer bin, the sample buffer bin is connected with a sample input pipe, the sample input pipe is also connected to the side wall of the sample buffer bin, the top of the sample buffer bin is connected with a negative pressure pipeline, and a pressing ring for pressing the filter screen is arranged at the connection port of the negative pressure pipeline on the sample buffer bin.

[0012] As a preferred scheme, the negative pressure machine is further provided with a dust removal device for filtering the extracted air.

[0013] The utility model discloses an effect is: because grain automatic sampling and inspection system, including sampling library, the sampling library top is equipped with the installation platform, the installation platform is installed with the sample picker that picks the grain in the grain car through sampling library, be equipped with the sample input pipe that penetrates and extends into sampling library on the sample picker, the sample input pipe is connected the sample buffer storehouse in sampling library, the sample buffer storehouse below is connected with the guide storehouse through flange, the flange between sample buffer storehouse and guide storehouse is equipped with the sample valve that controls the intercommunication opening and closing, be equipped with the support seat of supporting sample buffer storehouse and guide storehouse in sampling library, the guide storehouse downstream is connected with the distribution box in sampling library through the grain input pipe, the guide storehouse installation position is higher than distribution box, distribution box fixed mounting is in distribution mounting support, distribution box below is equipped with dry grain export and wet grain export, distribution box top is equipped with the passageway switching structure that makes grain input pipe and dry grain export or wet grain export intercommunication, dry grain export below is equipped with dry grain receiving hopper, wet grain export is equipped with wet grain receiving hopper, dry grain receiving hopper and wet grain receiving hopper are fixed mounting respectively in distribution mounting support, dry grain receiving hopper and wet grain receiving hopper are connected with grain conveying pipe respectively, the grain conveying pipe of dry grain receiving hopper and wet grain receiving hopper is connected with dry grain discharge bin and wet grain discharge bin in sampling library respectively, dry grain discharge bin and wet grain discharge bin are all fixed mounting in sampling library through discharge bin suspension bracket, the bottom of dry grain discharge bin and wet grain discharge bin is equipped with the discharge port, dry grain discharge bin and wet grain discharge bin's discharge port is equipped with the openable and closable plugging baffle, the discharge port below of dry grain discharge bin and wet grain discharge bin is equipped with the drop box, sampling library is equipped with the negative pressure machine still, carries out the negative pressure extraction to sample buffer storehouse, dry grain discharge bin and wet grain discharge bin through negative pressure pipeline, be equipped with the filter device in sample buffer storehouse, dry grain discharge bin and wet grain discharge bin, prevent grain from being extracted, first, the sample picker carries out the sampling to the grain car of sampling library side, the negative pressure machine carries out the negative pressure extraction to sample buffer storehouse, the sample valve is closed, the filter device carries out the filtration of grain when extracting, then, grain falls into sample buffer storehouse through sample input pipe, after sampling is completed, open the sample valve, grain falls into guide storehouse then enters distribution box along grain input pipe, determines that grain is wet grain or dry grain, the passageway switching structure opens corresponding wet grain export or dry grain export, then falls into dry grain receiving hopper or wet grain receiving hopper along the trend, then, the negative pressure machine carries out the negative pressure extraction to corresponding grain through negative pressure pipeline to dry grain discharge bin or wet grain discharge bin, after extraction is completed, open the plugging baffle, make grain fall into drop box, artificial storage and inspection, the system can carry out the sampling to the grain in the grain car, and then carry out dry and wet effective classification, accelerate the sampling efficiency, improve the accuracy when grain measurement inspection, guarantee the storage quality safety of grain.

[0014] The channel switching structure comprises a distribution valve rotatably installed in a distribution box, the distribution valve extends a deflection rod through the distribution box, one side of the distribution box is provided with a deflection mounting platform, a channel switching cylinder is hingedly mounted on the deflection mounting platform, a piston rod of the channel switching cylinder is hingedly connected with the deflection rod, and the distribution valve is driven to rotate by the channel switching cylinder to switch the opening and closing of the dry food outlet and the wet food outlet.

[0015] The distribution box comprises an upper distribution box and a lower distribution box, the upper distribution box and the lower distribution box are fixedly connected by flanges, the grain input pipe is communicated with the upper distribution box, the lower distribution box is connected with the dry food outlet and the wet food outlet, and the distribution valve is arranged in the lower distribution box.

[0016] The dry food receiving hopper and the wet food receiving hopper are of the same structure, the dry food receiving hopper is a conical leakage hopper, an adapter pipe is installed below the conical leakage hopper by a flange, the adapter pipe is connected with the grain conveying pipe, a mounting panel is arranged on the grain conveying pipe and is screwed on the adapter pipe, and a hopper support is arranged below the conical leakage hopper and is fixed on the distribution mounting support to support the conical leakage hopper.

[0017] The distribution mounting support comprises an upper distribution mounting frame for suspending and mounting the upper distribution box and the lower distribution box and a lower distribution mounting frame for mounting the dry food receiving hopper and the wet food receiving hopper by the hopper support, the upper distribution mounting frame and the lower distribution mounting frame are both composed of a plurality of strip rods, the strip rods on the upper distribution mounting frame form a cross shape, the upper distribution box and the lower distribution box are mounted on the cross shape of the upper distribution mounting frame by a flange structure, the strip rods on the lower distribution mounting frame form two cross shapes, and the two cross shapes of the lower distribution mounting frame correspond to the mounting of the hopper supports of the dry food receiving hopper and the wet food receiving hopper, respectively.

[0018] And since the dry food discharge bin and wet food discharge bin are also provided with dry food buffer bin and wet food buffer bin, the dry food buffer bin and the dry food discharge bin and the wet food buffer bin and the wet food discharge bin are of the same structure, a material falling valve for controlling communication is arranged between the dry food buffer bin and the dry food discharge bin, the grain conveying pipe is connected to the side wall of the dry food buffer bin, and the negative pressure pipeline is connected to the top of the dry food buffer bin, so that the grain in the dry food receiving hopper is first dropped into the dry food buffer bin when being sucked, and after the dust and impurities are sucked away, the material falling valve is opened to drop, thereby ensuring the accurate and reliable preservation and inspection of the grain.

[0019] And since the filter device is a filter screen, the top cover is arranged on the top of the dry food buffer bin through a snap lock, the filter screen is arranged between the top cover and the dry food buffer bin, the sample buffer bin is connected with the sample buffer bin through the sample input pipe, the sample buffer bin is connected with the sample buffer bin through the sample input pipe, the sample buffer bin is connected with the sample buffer bin through the sample input pipe, and the sample buffer bin is connected with the sample buffer bin through the sample input pipe.

[0020] And since the negative pressure machine is also provided with the dust removal device for filtering the extracted air, the extracted air is effectively filtered and purified, the environment is protected, and the use effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model will be further explained in connection with the drawings and embodiments.

[0022] Figure 1 It is the perspective view of the utility model embodiment;

[0023] Figure 2 It is the structure schematic view in the sampling library of the utility model embodiment;

[0024] Figure 3 It is the structure schematic view of distribution box body, dry food receiving hopper and wet food receiving hopper of the utility model embodiment;

[0025] Figure 4 It is the structure schematic view of the installation face plate of the utility model embodiment

[0026] Figure 5 It is the structure schematic view of sample buffer bin and guide bin and negative pressure machine cooperation of the utility model embodiment;

[0027] Figure 6 It is the sectional view of dry food buffer bin and dry food discharge bin of the utility model embodiment;

[0028] Figure 7 It is the structure schematic view of sample buffer bin filter device installation of the utility model embodiment;

[0029] 1, sampling library; 2, mounting platform; 3, sampling machine; 4, sampling rod; 5, sampling input pipe; 6, sample buffer bin; 7, guide bin; 8, sampling valve; 9, support seat; 10, upper distribution mounting frame; 11, lower distribution mounting frame; 12, strip rod; 13, grain input pipe; 14, dry grain outlet; 15, wet grain outlet; 16, dry grain receiving hopper; 17, wet grain receiving hopper; 18, grain conveying pipe; 19, deflection rod; 20, deflection mounting platform; 21, passage switching cylinder; 22, upper distribution box; 23, lower distribution box; 24, adapter pipe; 25, mounting panel; 26, dry grain discharge bin; 27, wet grain discharge bin; 28, discharge bin suspension; 29, discharge port; 30, blocking baffle; 31, discharging box; 32, negative pressure machine; 33, dry grain buffer bin; 34, wet grain buffer bin; 35, discharging valve; 36, outer eaves; 37, handle; 38, filter screen; 39, top cover; 40, compression ring; 41, dust removal device; 42, mounting beam; 43, negative pressure pipeline. DETAILED DESCRIPTION

[0030] The utility model will be described in further detail below through specific embodiments.

[0031] As Figures 1 to 7As shown, a kind of automatic sampling and inspection system of grain, including sampling library 1, the installation platform 2 is equipped on the sampling library 1, the sampling machine 3 of sampling library 1 grain car inside grain is installed on the installation platform 2, the sampling input pipe 5 that is inserted into sampling library 1 is equipped on the sampling machine 3, the sampling input pipe 5 is connected with the sample buffer bin 6 in sampling library 1, the guiding bin 7 is connected with flange below the sample buffer bin 6, the flange between the guiding bin 7 and sample buffer bin 6 is equipped with the sampling valve 8 of control communication opening and closing, the sampling library 1 is equipped with the support seat 9 of supporting sample buffer bin 6 and guiding bin 7, the distribution box body located in sampling library 1 is connected with by grain input pipe 13 downstream guiding bin 7, the installation position of guiding bin 7 is higher than distribution box body, distribution box body is fixedly installed on distribution mounting bracket, dry grain outlet 14 and wet grain outlet 15 are equipped below distribution box body, the passage switching structure that makes grain input pipe 13 with dry grain outlet 14 or wet grain outlet 15 communicate is equipped on distribution box body, dry grain receiving hopper 16 is equipped below dry grain outlet 14, wet grain receiving hopper 17 is equipped with dry grain outlet 15, dry grain receiving hopper 16 and wet grain receiving hopper 17 are fixedly installed on distribution mounting bracket respectively, dry grain receiving hopper 16 and wet grain receiving hopper 17 are connected with grain conveying pipe 18 respectively, the grain conveying pipe 18 of dry grain receiving hopper 16 and wet grain receiving hopper 17 is respectively connected with dry grain discharge bin 26 and wet grain discharge bin 27 in sampling library 1, dry grain discharge bin 26 and wet grain discharge bin 27 are fixedly installed in sampling library 1 by discharge bin suspension 28, the bottom of dry grain discharge bin 26 and wet grain discharge bin 27 is equipped with discharge port 29, the blocking baffle 30 that can be opened and closed is installed at the discharge port 29 of dry grain discharge bin 26 and wet grain discharge bin 27, the drop box 31 is equipped below the discharge port 29 of dry grain discharge bin 26 and wet grain discharge bin 27, the negative pressure machine 32 of sample buffer bin 6, dry grain discharge bin 26 and wet grain discharge bin 27 is also equipped in sampling library 1 by negative pressure pipeline 43, the filter device that prevents grain from being extracted is equipped in sample buffer bin 6, dry grain discharge bin 26 and wet grain discharge bin 27.

[0032] In the embodiment, the sampling machine 3 fixed on the sampling library 1 can slide linearly along the length direction of the sampling library 1, and can drive the sampling rod 4 to rotate and move up and down, facilitating insertion into any depth of the grain car for sampling, the sampling library 1 is provided with a mounting beam 42 to support the sampling machine 3, the sampling machine 3 is described in detail in patent No. 202411771915.2, and is an existing structure on the market, therefore not described in detail herein, the sampling input pipe 5 communicates with the sampling rod 4, a wire harness hole is formed in the installation platform 2 of the sampling library 1, the sampling input pipe 5 passes through the wire harness hole to communicate with the sample buffer bin 6, and at the same time, the power line can also pass through the wire harness hole to control the sampling of the sampling machine 3, thereby improving the use effect.

[0033] As Figure 5 shown, between the sample buffer bin 6 and the guide bin 7 is provided with a sampling valve 8, the sample buffer bin 6 and the guide bin 7 are conical funnel structure, so can be a good summary of the sampling of grain, while the support seat 9 is supported on the sample buffer bin 6, to ensure stable installation, and the guide bin 7 through the grain input pipe 13 into the distribution box by gravity, the grain input pipe 13 is located at the bottom of the guide bin 7.

[0034] As Figure 2 and Figure 3 shown, the channel switching structure includes a distribution valve rotatably mounted in the distribution box, the distribution valve extends through the distribution box and extends out of the deflection rod 19, one side of the distribution box is provided with a deflection mounting platform 20, the deflection mounting platform 20 is hingedly mounted with a channel switching cylinder 21, the piston rod of the channel switching cylinder 21 is hingedly connected with the deflection rod 19, the distribution valve is driven to rotate by the channel switching cylinder 21 to switch the opening and closing of the dry grain outlet 14 and the wet grain outlet 15; the swing of the deflection rod 19 can drive the rotation of the valve to block the dry grain outlet 14 or the wet grain outlet 15, and only one outlet needs to be ensured to be blocked at a time, and the other outlet is ensured to be opened, so that the piston rod of the channel switching cylinder 21 can drive the deflection rod 19 to swing by extension and retraction, so that the wet grain outlet 15 or the dry grain outlet 14 can be opened, and the falling grain can be accurately classified, the driving switch is simple and convenient, and the efficiency is improved.

[0035] Further, the distribution box includes an upper distribution box 22 and a lower distribution box 23, the upper distribution box 22 and the lower distribution box 23 are fixedly connected through flanges, the grain input pipe 13 communicates with the upper distribution box 22, the lower distribution box 23 is connected with the dry grain outlet 14 and the wet grain outlet 15 below, and the distribution valve is arranged in the lower distribution box 23; the upper distribution box 22 and the lower distribution box 23 are convenient to assemble and disassemble for production, and are convenient for internal detection and cleaning; the deflection mounting platform 20 is welded and fixedly mounted on the lower distribution box 23, which is convenient for mounting the channel switching cylinder 21 and adjusting the control valve of the channel switching cylinder 21, and ensures that the valve rotates stably and reliably.

[0036] In the embodiment, the dry food receiving hopper 16 and the wet food receiving hopper 17 are of the same structure, the dry food receiving hopper 16 is a conical leakage hopper, a transition pipe 24 is installed below the conical leakage hopper through a flange, the transition pipe 24 is connected with a food conveying pipe 18, a mounting panel 25 is arranged on the food conveying pipe 18 and is screwed on the transition pipe 24, and a hopper support is arranged below the conical leakage hopper and is fixed on a distribution mounting support to support the conical leakage hopper; the conical leakage hopper facilitates the falling and gathering of food, the wet food receiving hopper 17 is also supported by a hopper support below, the stability of the installation of the dry food receiving hopper 16 and the wet food receiving hopper 17 is ensured, the transition pipe 24 can ensure the accurate guidance of food, the subsequent conveying effect is improved, and the food conveying pipe 18 can be dismounted through the mounting panel 25, which facilitates the internal cleaning and maintenance.

[0037] Further, the distribution mounting support includes an upper distribution mounting frame 10 suspending mounting of an upper distribution box 22 and a lower distribution box 23 and a lower distribution mounting frame 11 mounting the dry food receiving hopper 16 and the wet food receiving hopper 17 through a hopper support, the upper distribution mounting frame 10 and the lower distribution mounting frame 11 are both composed of a plurality of strip-shaped rods 12, the strip-shaped rods 12 on the upper distribution mounting frame 10 form a cross shape, the upper distribution box 22 and the lower distribution box 23 are mounted on the cross shape of the upper distribution mounting frame 10 through a flange structure, the strip-shaped rods 12 on the lower distribution mounting frame 11 form two cross shapes, and the two cross shapes of the lower distribution mounting frame 11 correspond to the mounting of the hopper supports of the dry food receiving hopper 16 and the wet food receiving hopper 17, respectively; the upper distribution mounting frame 10 ensures the stable and firm suspension mounting of the upper distribution box 22 and the lower distribution box 23, and the lower distribution mounting frame 11 also firmly supports the dry food receiving hopper 16 and the wet food receiving hopper 17 in suspension, avoids the contact of the transition pipe 24 with the food conveying pipe 18 with the ground, enables the stable falling of food, the conveying of food through the food conveying pipe 18, and improves the installation efficiency of the upper distribution mounting frame 10 and the lower distribution mounting frame 11.

[0038] As Figure 2 and Figure 6As shown, the dry food discharge bin 26 and wet food discharge bin 27 are also provided with dry food buffer bin 33 and wet food buffer bin 34, the dry food buffer bin 33 and dry food discharge bin 26 and wet food buffer bin 34 and wet food discharge bin 27 are the same structure, the dry food buffer bin 33 and dry food discharge bin 26 are provided with control communication of the falling valve 35, the grain conveying pipe 18 is connected on the side wall of the dry food buffer bin 33, and the negative pressure pipeline 43 is connected on the top of the dry food buffer bin 33; Similarly, the wet food discharge bin 27 is also provided with a wet food buffer bin 34, so that the grain in the dry food receiving hopper 16 is first dropped into the dry food buffer bin 33 when being sucked, and then the falling valve 35 is opened after the dust and impurities are sucked away, ensuring the accurate and reliable preservation and inspection of the grain; The discharge bin suspension 28 suspends the corresponding dry food discharge bin 26 and wet food discharge bin 27, and the eaves 36 is provided at the discharge port 29 of the dry food discharge bin 26 and wet food discharge bin 27, and the sealing baffle 30 is rotatably connected with the eaves 36, so that the handle 37 is provided on the sealing baffle 30, so that the sealing baffle 30 is rotated by the handle 37, and the opening and closing of the discharge port 29 is controlled conveniently, and the structure is simple and reliable.

[0039] As shown in Figure 6 and Figure 7 As shown, the filter device is a filter screen 38, the top of the dry food buffer bin 33 is provided with a top cover 39 through a snap lock, the filter screen 38 is arranged between the top cover 39 and the dry food buffer bin 33, the sample buffer bin 6 is connected with the sample input pipe 5, and the sample buffer bin 6 is connected with the sample buffer bin 6. The top of the sample buffer bin 6 is connected with a negative pressure pipeline 43, and the sample buffer bin 6 is provided with a pressing ring 40 for pressing the filter screen 38 at the connection port of the negative pressure pipeline 43; The filter screen 38 is convenient to disassemble and assemble, and the grain is prevented from being sucked away, the sampling and sucking effect is improved, and the dust and impurities in the grain are also sucked away, so that the detection is more accurate.

[0040] Further, the negative pressure machine 32 is also provided with a dust removal device 41 for filtering the extracted air, the dust removal device 41 is connected with the negative pressure machine 32, can filter and discharge the extracted air in time, protects the environment, and improves the use effect; The dust removal device 41 is a filter bag dust remover, which is a structure existing on the market, and thus will not be described in detail herein.

[0041] The working principle of the embodiment is as follows: firstly, the sampling machine 3 samples the grain car beside the sampling library 1, the negative pressure machine 32 performs negative pressure extraction on the sample buffer bin 6, the sampling valve 8 is closed, the filter screen 38 in the negative pressure pipeline 43 filters the grain during extraction, then the grain falls into the sample buffer bin 6 through the sampling input pipe 5, after sampling is completed, the sampling valve 8 is opened, the grain falls into the guide bin 7 and then enters the distribution box through the grain input pipe 13, whether the grain is wet or dry is determined, the channel switching cylinder 21 drives the piston rod to extend, drives the deflection rod 19 to deflect and then drives the valve to rotate to open the corresponding wet grain outlet 15 or dry grain outlet 14, then falls into the dry grain receiving hopper 16 or the wet grain receiving hopper 17, then the negative pressure machine 32 performs negative pressure extraction on the dry grain buffer bin 33 or the wet grain buffer bin 34 through the negative pressure pipeline 43, the grain corresponding to the negative pressure extraction, the grain falls into the dry grain discharge bin 26 or the wet grain discharge bin 27 after the extraction is completed, then the corresponding blocking baffle 30 is rotated and opened to make the grain fall into the discharging box 31, and manual storage and inspection are performed.

[0042] The above-described embodiments are only descriptions of preferred embodiments of the present application and are not intended to limit the scope of the present application, and various modifications and improvements of the technical solutions of the present application made without departing from the design spirit of the present application should all fall within the protection scope determined by the claims of the present application.

Claims

1. A grain automatic sampling and inspection system, comprising a sampling bin, a mounting platform is arranged above the sampling bin, and a sampling machine for sampling grain in the grain car passing through the sampling bin is mounted on the mounting platform, characterized in that: The sampling machine is provided with a sampling input pipe penetrating into the sampling library, the sampling input pipe is connected with a sample buffer bin in the sampling library, a guide bin is connected with the sample buffer bin through a flange, a sampling valve for controlling the opening and closing of the communication between the flanges of the sample buffer bin and the guide bin is arranged, a supporting seat for supporting the sample buffer bin and the guide bin is arranged in the sampling library, a distribution box is connected with the guide bin through a grain input pipe downstream of the guide bin, the installation position of the guide bin is higher than that of the distribution box, the distribution box is fixedly installed on a distribution installation support, a dry grain outlet and a wet grain outlet are arranged below the distribution box, a channel switching structure for enabling the grain input pipe to communicate with the dry grain outlet or the wet grain outlet is arranged on the distribution box, a dry grain receiving hopper is arranged below the dry grain outlet, a wet grain receiving hopper is arranged below the wet grain outlet, the dry grain receiving hopper and the wet grain receiving hopper are respectively fixedly installed on the distribution installation support, grain conveying pipes are respectively connected with the dry grain receiving hopper and the wet grain receiving hopper, the grain conveying pipes of the dry grain receiving hopper and the wet grain receiving hopper are respectively connected with dry grain discharge bins and wet grain discharge bins in the sampling library, the dry grain discharge bins and the wet grain discharge bins are fixedly installed in the sampling library through discharge bin suspensions, discharge ports are arranged at the bottoms of the dry grain discharge bins and the wet grain discharge bins, openable and closable blocking flaps are arranged at the discharge ports of the dry grain discharge bins and the wet grain discharge bins, and drop boxes are arranged below the discharge ports of the dry grain discharge bins and the wet grain discharge bins.

2. The automatic sampling and inspection system of claim 1, wherein: The channel switching structure comprises a distribution valve rotatably installed in the distribution box, the distribution valve extends out a deflection rod through the distribution box, a deflection installation platform is arranged on one side of the distribution box, a channel switching cylinder is hingedly installed on the deflection installation platform, a piston rod of the channel switching cylinder is hingedly connected with the deflection rod, and the distribution valve is driven to rotate by the channel switching cylinder to switch the opening and closing of the dry grain outlet and the wet grain outlet.

3. The automatic grain sampling and submission system as claimed in claim 2, characterized in that: The distribution box comprises an upper distribution box and a lower distribution box, the upper distribution box and the lower distribution box are fixedly connected through flanges, the grain input pipe communicates with the upper distribution box, the lower distribution box is connected with the dry grain outlet and the wet grain outlet, and the distribution valve is arranged in the lower distribution box.

4. The automatic grain sampling and submission system as claimed in claim 3, characterized in that: The dry grain receiving hopper and the wet grain receiving hopper are the same in structure, the dry grain receiving hopper is a conical leakage hopper, an adapter pipe is installed below the conical leakage hopper through a flange, the adapter pipe is connected with the grain conveying pipe, a mounting panel is arranged on the grain conveying pipe and is screwed to the adapter pipe, and a hopper support is arranged below the conical leakage hopper and is fixed to the distribution installation support to support the conical leakage hopper.

5. The automatic sampling and inspection system for grain as claimed in claim 4, characterized in that: The distribution mounting bracket comprises an upper distribution mounting frame for suspending mounting of the upper distribution box and the lower distribution box, and a lower distribution mounting frame for mounting the dry food receiving hopper and the wet food receiving hopper through the hopper bracket, the upper distribution mounting frame and the lower distribution mounting frame are both composed of a plurality of strip-shaped rods, the strip-shaped rods on the upper distribution mounting frame form a cross shape, the upper distribution box and the lower distribution box are mounted at the cross shape of the upper distribution mounting frame through a flange structure, the strip-shaped rods on the lower distribution mounting frame form two cross shapes, and the two cross shapes of the lower distribution mounting frame correspond to the mounting of the dry food receiving hopper and the wet food receiving hopper hopper bracket respectively.

6. The automatic sampling and inspection system of claim 5, wherein: The dry food discharge bin and the wet food discharge bin are further provided with a dry food buffer bin and a wet food buffer bin, the dry food buffer bin and the wet food buffer bin have the same structure as the dry food discharge bin and the wet food discharge bin, a material falling valve for controlling communication is arranged between the dry food buffer bin and the dry food discharge bin, and the grain conveying pipe is connected to the side wall of the dry food buffer bin.

7. The automatic grain sampling and submission system as claimed in claim 6, characterized in that: The filter device is a filter screen, the top of the dry food buffer bin is provided with a top cover which is mounted through a snap lock, a filter screen is arranged between the top cover and the dry food buffer bin, the sample buffer bin is connected to the sample buffer bin through a sample input pipe which is also connected to the side wall of the sample buffer bin, the top of the sample buffer bin is connected to a negative pressure pipeline, and a pressing ring for pressing the filter screen is arranged at the negative pressure pipeline connection port of the sample buffer bin.

8. The automatic grain sampling and submission system as claimed in claim 7, characterized in that: The negative pressure machine is further provided with a dust removal device for filtering the extracted air.

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