A silo flow grain sampler

Abstract

The utility model relates to the technical field of silo grain sampling, in particular to a silo flow grain sampler, which comprises: a fixing frame, a sampling mechanism is arranged in the fixing frame, a discharging mechanism is arranged below the sampling mechanism, the sampling mechanism comprises a sampling tube arranged in the fixing frame, a motor is fixed to the upper end of the sampling tube, a spiral blade is fixed to the output end of the motor, the spiral blade is rotatably connected in the sampling tube, a discharge pipe is in communication with the upper side of the outer surface of the sampling tube, a supporting ring is slidably connected to the outer surface of the sampling tube, a limiting tube is fixed to the end face of the supporting ring close to the inner wall of the fixing frame, and a limiting assembly is arranged in the limiting tube. The utility model changes the angle and position of the sampling tube by manually adjusting the movable plate of the inner wall of the fixing frame, can cover different areas in the silo, flexibly adjusts the sampling position of the device, and the sampling result more comprehensively reflects the overall quality of the grain in the silo, thereby ensuring the sampling accuracy of the device.

Description

Technical Field

[0001] This utility model relates to the field of grain sampling technology in silos, and specifically to a silo flow grain sampler. Background Technology

[0002] A silo is a vertical container used to store bulk materials (such as grain, cement, ore, etc.). It is usually cylindrical or rectangular in shape and has the characteristics of strong sealing, high storage efficiency and small footprint. Sampling and testing the grain in the silo is the core link to ensure the quality and safety of grain and monitor the storage status. It is the basis of quality and safety testing, prevents unqualified grain from entering the market, and ensures food safety.

[0003] Traditional sampling equipment is usually fixed in a specific location within the silo, making it difficult to flexibly sample grain from different areas (such as near the silo wall, the center, or different height levels). This results in sampling results that cannot fully reflect the overall quality of the grain within the silo, thus affecting the accuracy of safety testing. Furthermore, in actual sampling scenarios, it is difficult to completely remove residual grain from the sampling tube, increasing the risk of errors from repeated sampling. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a silo flow grain sampler, which can effectively solve the problems of the existing technology being unable to flexibly sample and clean up residual grain.

[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a silo flow grain sampler, including: a fixed frame, a sampling mechanism inside the fixed frame, and a unloading mechanism below the sampling mechanism; The sampling mechanism includes a sampling tube located inside a fixed frame. A motor is fixed to the upper end of the sampling tube, and a spiral blade is fixed to the output end of the motor. The spiral blade is rotatably connected inside the sampling tube. A discharge pipe is connected to the upper side of the outer surface of the sampling tube. A support ring is slidably connected to the outer surface of the sampling tube. A limit tube is fixed to the end face of the support ring near the inner wall of the fixed frame, and a limit component is provided inside the limit tube.

[0006] Preferably, the outer surface of the spiral blade is attached to the inner wall of the sampling tube.

[0007] Preferably, the limiting component includes a movable plate slidably connected to the inner wall of the fixed frame, a support tube fixed to one end of the movable plate near the sampling tube, an airbag fixed inside the support tube, a plurality of rectangular grooves arrayed on the inner wall of the support tube, a limiting plate slidably connected inside the rectangular grooves, an elastic element provided between the limiting plate and the inner wall of the support tube, and the limiting plate conforming to the outer surface of the support tube.

[0008] Preferably, an air pumping device is provided between the two airbags.

[0009] Preferably, the unloading mechanism includes a fixing ring fixed to the outer surface of the sampling tube, an electric telescopic rod symmetrically embedded at the lower end of the fixing ring, a sealing tube one fixed at the lower end of the sampling tube, an array of feed grooves on the outer surface of the sealing tube one, a conical funnel fixed inside the sealing tube one, a sealing tube two fixed at the telescopic end of the electric telescopic rod, a plurality of discharge grooves arrayed on the outer surface of the sealing tube two, a conical block fixed at the lower end of the sealing tube two, and a conical stop block elastically connected to the upper end of the conical block.

[0010] Preferably, the discharge trough is located between two adjacent feed troughs, and the lower end of the discharge trough is provided with an inclined surface.

[0011] The technical solution provided by this utility model has the following advantages compared with the known prior art: By manually adjusting the movable plate on the inner wall of the fixed frame, the angle and position of the sampling tube can be changed, covering different areas inside the silo. The sampling position of the device can be flexibly adjusted, and the sampling results can more comprehensively reflect the overall quality of the grain in the silo, ensuring the sampling accuracy of the device. Furthermore, between two samplings, the spiral blade driven by the motor can reverse, which can completely push the grain residue on the tube wall to the unloading mechanism, reducing residual errors and further improving the sampling accuracy of the device. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the sampling mechanism of this utility model; Figure 3 This is a schematic diagram of the internal structure of the limiting component of this utility model; Figure 4 This is a schematic diagram of the internal structure of the unloading mechanism of this utility model; Figure 5 This is a schematic diagram showing the position and structure of the sealing pipe 2 and the conical stop block during unloading of the device of this utility model.

[0014] Reference numerals: 1. Fixed frame; 2. Sampling mechanism; 3. Unloading mechanism; 21. Sampling tube; 22. Motor; 23. Spiral blade; 24. Discharge tube; 25. Support ring; 26. Limiting tube; 27. Limiting assembly; 271. Movable plate; 272. Supporting tube; 273. Airbag; 274. Limiting plate; 31. Fixed ring; 32. Electric telescopic rod; 33. Sealing tube one; 34. Feed trough; 35. Conical funnel; 36. Sealing tube two; 37. Discharge trough; 38. Conical block; 39. Conical stop. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0016] The present invention will be further described below with reference to the embodiments.

[0017] Example: Refer to Figures 1 to 5 A silo flow grain sampler includes: a fixed frame 1, a sampling mechanism 2 inside the fixed frame 1, and a unloading mechanism 3 below the sampling mechanism 2.

[0018] To further explain, the following settings are implemented to extract grain from the silos, such as... Figure 2 As shown, the sampling mechanism 2 includes a sampling tube 21 located in the fixed frame 1. A motor 22 is fixed to the upper end of the sampling tube 21. A spiral blade 23 is fixed to the output end of the motor 22. The outer surface of the spiral blade 23 is attached to the inner wall of the sampling tube 21. The spiral blade 23 is rotatably connected to the sampling tube 21. A discharge pipe 24 is connected to the upper side of the outer surface of the sampling tube 21. A support ring 25 is slidably connected to the outer surface of the sampling tube 21. A limit tube 26 is fixed to the end face of the support ring 25 near the inner wall of the fixed frame 1. A limit component 27 is provided inside the limit tube 26.

[0019] To further explain, the following settings are made to fix the sampling mechanism 2, such as... Figure 3 As shown, the limiting component 27 includes a movable plate 271 slidably connected to the inner wall of the fixed frame 1. A support tube 272 is fixed to one end of the movable plate 271 near the sampling tube 21. An airbag 273 is fixed inside the support tube 272. An air pumping device is provided between the two airbags 273. Multiple rectangular grooves are arrayed on the inner wall of the support tube 272. A limiting plate 274 is slidably connected inside the rectangular groove. An elastic element is provided between the limiting plate 274 and the inner wall of the support tube 272. The limiting plate 274 fits against the outer surface of the support tube 272.

[0020] To further explain, the following settings are implemented to discharge residual grains during repeated sampling, such as... Figure 4 and Figure 5 As shown, the unloading mechanism 3 includes a fixing ring 31 fixed to the outer surface of the sampling tube 21. An electric telescopic rod 32 is symmetrically embedded at the lower end of the fixing ring 31. A sealing tube 33 is fixed at the lower end of the sampling tube 21. An array of feed grooves 34 are opened on the outer surface of the sealing tube 33. A conical funnel 35 is fixed inside the sealing tube 33. A sealing tube 36 is fixed at the telescopic end of the electric telescopic rod 32. A plurality of discharge grooves 37 are opened on the outer surface of the sealing tube 36. The discharge grooves 37 are located between two adjacent feed grooves 34. An inclined surface is opened at the lower end of the discharge grooves 37. A conical block 38 is fixed at the lower end of the sealing tube 36. A conical stop 39 is elastically connected to the upper end of the conical block 38.

[0021] The working principle of this utility model is as follows: The fixing frame 1 is fixed at the upper end of the silo. By manually adjusting the position of the movable plate 271 and the angle of the sampling tube 21, grains from different positions in the silo can be extracted to enable better sampling. Sampling can be carried out directly through the existing feeding channel without modifying the silo. After determining the sampling position, the airbag 273 of the limiting component 27 is inflated by the air pump device. The volume of the airbag 273 will increase, pushing the limiting plate 274, which is in contact with its outer surface, to move away from each other until the surface of the limiting plate 274 contacts the inner wall of the limiting tube 26. This fixes the sampling mechanism 2 for sampling at the target position in the silo, avoiding sampling position deviation caused by equipment shaking during the sampling process. Manually insert the conical block 38 into the grain, and start the electric telescopic rod 32 to drive the sealing tube 2 36 to descend until the sealing tube 2 36 is below the feed chute 34. The grain in the silo will enter the sealing tube 1 33 through the feed chute 34. Then start the motor 22 to rotate forward and drive the spiral blade 23 to rotate. The spiral push will draw the grain from the feed chute 34 into the sealing tube 1 33. The grain will move upward on the surface of the spiral blade 23 until it is transported to the sample container through the discharge pipe 24 to complete the sampling process. When the sampling position needs to be adjusted, the air bag 273 is deflated to release the limit. The movable plate 271 drives the sampling mechanism 2 to move to the new position and then re-inflates and fixes it. Before re-sampling, the grain stored in the sampling tube 21 needs to be discharged. During unloading, the electric telescopic rod 32 is activated again to drive the sealing tube 36 to descend until it moves below the feed trough 34. The discharge trough 37 can no longer block the lower end of the feed trough 34. Then, the motor 22 is activated to drive the spiral blade 23 in the sampling tube 21 to rotate in the opposite direction. The grain falls into the sealing tube 36 through the conical funnel 35 and slides out along the inclined surface of the conical block 38. After unloading, the sealing tube 36 rises and resets. At the same time, the conical block 39 resets under the action of the elastic element to enhance the seal, so that the sampling work can be repeated.

[0022] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A silo flow grain sampler, characterized in that, include: A fixed frame (1) is provided inside the fixed frame (1), and a sampling mechanism (2) is provided below the sampling mechanism (2). The sampling mechanism (2) includes a sampling tube (21) located in the fixed frame (1). A motor (22) is fixed at the upper end of the sampling tube (21). A spiral blade (23) is fixed at the output end of the motor (22). The spiral blade (23) is rotatably connected to the sampling tube (21). A discharge pipe (24) is connected to the upper side of the outer surface of the sampling tube (21). A support ring (25) is slidably connected to the outer surface of the sampling tube (21). A limit tube (26) is fixed to the end face of the support ring (25) near the inner wall of the fixed frame (1). A limit component (27) is provided inside the limit tube (26).

2. The silo flow grain sampler according to claim 1, characterized in that, The outer surface of the spiral blade (23) is attached to the inner wall of the sampling tube (21).

3. The silo flow grain sampler according to claim 1, characterized in that, The limiting component (27) includes a movable plate (271) slidably connected to the inner wall of the fixed frame (1). A support tube (272) is fixed to one end of the movable plate (271) near the sampling tube (21). An airbag (273) is fixed inside the support tube (272). Multiple rectangular grooves are arrayed on the inner wall of the support tube (272). A limiting plate (274) is slidably connected inside the rectangular groove. An elastic element is provided between the limiting plate (274) and the inner wall of the support tube (272). The limiting plate (274) fits against the outer surface of the support tube (272).

4. A silo flow grain sampler according to claim 3, characterized in that, An air pumping device is provided between the two airbags (273).

5. A silo flow grain sampler according to claim 1, characterized in that, The unloading mechanism (3) includes a fixing ring (31) fixed to the outer surface of the sampling tube (21). The lower end of the fixing ring (31) is symmetrically fitted with an electric telescopic rod (32). The lower end of the sampling tube (21) is fixed with a sealing tube (33). The outer surface of the sealing tube (33) is arrayed with feed grooves (34). The sealing tube (33) is fixed with a conical funnel (35). The telescopic end of the electric telescopic rod (32) is fixed with a sealing tube (36). The outer surface of the sealing tube (36) is arrayed with multiple discharge grooves (37). The lower end of the sealing tube (36) is fixed with a conical block (38). The upper end of the conical block (38) is elastically connected with a conical stop (39).

6. A silo flow grain sampler according to claim 5, characterized in that, The discharge trough (37) is located between two adjacent feed troughs (34), and the lower end of the discharge trough (37) is provided with an inclined surface.

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