Grain detection sampler

Abstract

The utility model discloses a grain detection sampler, and relates to the technical field of food safety. According to the technical key points, the device comprises a lower outer pipe, an upper outer pipe is detachably connected to the upper portion of the lower outer pipe, and feeding ports are formed in the same sides of the lower outer pipe and the upper outer pipe; a lower inner pipe is coaxially arranged in the lower outer pipe, an upper inner pipe is coaxially arranged in the upper outer pipe, and the upper end of the lower inner pipe and the lower end of the upper inner pipe are detachably connected together; the same sides of the lower inner pipe and the upper inner pipe are respectively provided with a sampling port with the same shape and size as the feeding port; and the position of the sampling port on the upper inner pipe corresponds to the position of the feeding port on the upper outer pipe. The upper outer pipe and the lower outer pipe as well as the upper inner pipe and the lower inner pipe can be freely detached, and compared with an integrally-formed sampler in the prior art, the sampling device is obviously more convenient and flexible to use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of food safety, and particularly relates to a grain detection sampler. BACKGROUND

[0002] The grain detection sampler is a device specially designed for collecting samples from grains, which can ensure that the collected samples are representative, so as to accurately reflect the quality condition of the whole batch of grains. It is mainly used for quality monitoring in the links of grain purchase, storage, processing and trade, so as to ensure the safety and quality of grains. The sampler used for sampling grains from bags with packaging is a single tube hand probe. The sampler is cut from a metal tube, the sampling end is conical, and the other end has a hollow wooden handle. The sampling is to insert the sampler into the bag to obtain grain samples. The sampler used for sampling grains from bulk grain piles (such as grain stores) is a double tube probe. The sampler is made of two metal tubes. The inner and outer tubes are cut at the same position to form slots. The slots can be opened and closed by rotating the inner tube. When sampling, the inner tube is rotated to close the slots, the sampler is inserted into the grain pile, and then the inner tube is rotated to open the slots. After the sample is filled, the inner tube is rotated to close the slots, the sampler is removed, the slots are opened, and the sample is discharged.

[0003] The inner and outer tubes of the double tube probe for sampling in bulk grain piles are one integral metal tube. In order to fully insert the double tube probe into the grain pile and uniformly obtain grain samples, the overall length of the double tube probe is usually large. For example, the overall length of a commonly used double tube probe in grain stores can reach about 1.8-2 m. Such a high sampler is very inconvenient for the sampler to carry or insert into the grain pile. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a grain detection sampler, which can be conveniently carried by a sampler and inserted into a grain pile for sampling.

[0005] The above object of the present application is achieved by the following technical scheme:

[0006] A grain detection sampler comprises a lower outer tube, an upper outer tube coaxially arranged above the lower outer tube and having the same diameter as the lower outer tube, a feeding port arranged on the same side of the lower outer tube and the upper outer tube, and a lower end of the upper outer tube and an upper end of the lower outer tube being detachably connected together.

[0007] A lower inner tube is coaxially arranged in the lower outer tube, and an upper inner tube is coaxially arranged in the upper outer tube. An upper end of the lower inner tube and a lower end of the upper inner tube are detachably connected together.

[0008] The outer diameter of the lower inner tube and the upper inner tube is equal to the inner diameter of the lower outer tube and the upper outer tube respectively, and the same side of the lower inner tube and the upper inner tube is provided with a sampling port with the same size and shape as the feed port, the position of the sampling port on the lower inner tube corresponds to the position of the feed port on the lower outer tube, and the position of the sampling port on the upper inner tube corresponds to the position of the feed port on the upper outer tube.

[0009] Further, the upper end of the lower outer tube is sleeved with a connecting sleeve and fixedly connected therebetween, the upper end of the connecting sleeve is higher than the upper end of the lower outer tube, and the lower end of the upper outer tube is inserted into the part of the connecting sleeve above the lower outer tube and threadedly connected therebetween.

[0010] Further, the upper end of the lower inner tube is fixedly connected with a mounting sleeve, the outer diameter of the mounting sleeve is equal to the inner diameter of the lower inner tube and the upper inner tube, the lower end of the upper inner tube is sleeved on the upper end of the mounting sleeve and threadedly connected therebetween.

[0011] Further, the upper end of the upper outer tube is welded with a first handle mounting seat on one of the opposite sides in the radial direction thereof respectively, the first handle mounting seat is provided with an internally threaded hole, and a horizontal handle is threadedly connected in the internally threaded hole of the first handle mounting seat; the upper end of the lower outer tube and the corresponding positions of the two first handle mounting seats are respectively welded with a second handle mounting seat, the second handle mounting seat is provided with an internally threaded hole with the same specification as that of the first handle mounting seat, and the two second handle mounting seats are located below the connecting sleeve on the lower outer tube.

[0012] Further, a part of the mounting sleeve is located above the connecting sleeve, the part of the mounting sleeve is provided with an external thread connected with the upper inner tube, and another part of the mounting sleeve is provided with a first limiting hole penetrating them in the horizontal direction at the overlapping area thereof;

[0013] The upper end of the upper inner tube is located outside the upper end of the upper outer tube, and the top of the part of the upper inner tube is fixedly provided with an externally threaded sleeve with the same specification as the external thread of the mounting sleeve, and a rotating handle is threadedly connected with the externally threaded sleeve;

[0014] A second limiting hole penetrating the upper end of the upper inner tube and the upper outer tube in the horizontal direction is arranged at the overlapping area thereof, a limiting bolt is inserted into the second limiting hole, a nut is threadedly connected with the limiting bolt, and the hole diameter of the second limiting hole is equal to the hole diameter of the first limiting hole.

[0015] Further, the rotating handle comprises a supporting sleeve, which is sleeved on the outer threaded sleeve of the top of the upper inner tube and is threadedly connected therebetween, and one of the opposite sides of the supporting sleeve in the radial direction is fixedly connected with a horizontally arranged rotating handle.

[0016] Further, the outer side wall of the lower half of the lower outer tube is uniformly and fixedly provided with a plurality of helical wings, and the lower end of the lower outer tube is in a conical structure.

[0017] To sum up, the present application has at least one of the following beneficial technical effects:

[0018] The outer tube in the sampler of the present application is composed of an upper outer tube and a lower outer tube, and the inner tube is composed of an upper inner tube and a lower inner tube, and they can be freely disassembled, so that the sampler can be carried and moved more conveniently. When the sampler needs to be used to sample from a bulk grain pile, the lower inner tube can be inserted into the lower outer tube first, and then they are inserted into the grain together. When the upper end of the lower outer tube and the lower inner tube approaches the surface of the grain pile, the upper outer tube and the upper inner tube are connected with the lower outer tube and the lower inner tube respectively, and then the whole device is inserted into the grain. When the lower end of the lower outer tube reaches the appropriate position of the grain pile, the sampler can be rotated in the upper outer tube and the lower outer tube with the lower inner tube. When the sampling port on the upper inner tube and the lower inner tube is aligned with the feeding port on the upper outer tube and the lower outer tube, the grain will automatically flow into the upper inner tube and the lower inner tube, and the sampling operation is realized. Compared with the prior art, the sampler of the present application is not only flexible, but also easy to operate, and the sampler can be inserted into the grain pile step by step for sampling. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0020] Figure 1 is a schematic diagram of the overall structure of the present application;

[0021] Figure 2 is an exploded schematic diagram of all parts of the present application;

[0022] Figure 3 is an exploded schematic diagram from Figure 2 one of the opposite sides.

[0023] Figure 4 is a schematic diagram of the state of the lower outer tube and the lower inner tube of the present application when inserted into a grain pile;

[0024] Figure 5 is a schematic diagram of the use state when the length of the lower outer tube of the present application meets the required sampling depth.

[0025] Reference signs: 1, lower outer tube; 2, upper outer tube; 3, feed inlet; 4, lower inner tube; 5, upper inner tube; 6, sampling port; 7, connecting sleeve; 8, mounting sleeve; 9, first handle mounting seat; 10, horizontal handle; 11, second handle mounting seat; 12, first limiting hole; 13, external thread sleeve; 14, rotating handle; 141, support sleeve; 142, rotating handle; 15, second limiting hole; 16, limiting bolt; 17, nut; 18, helical wing plate. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application are described clearly and completely below. Obviously, the described embodiments are some embodiments of the present application, but not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor also belong to the scope of protection of the present application.

[0027] As shown in Figures 1-5 , the grain detection sampler disclosed by the present application comprises a lower outer tube 1, an upper outer tube 2 coaxially arranged above the lower outer tube 1 and having the same diameter as the lower outer tube 1, feed inlets 3 arranged on the same side of the lower outer tube 1 and the upper outer tube 2, and the upper end of the lower outer tube 1 and the lower end of the upper outer tube 2 being detachably connected together.

[0028] A lower inner tube 4 is coaxially arranged in the lower outer tube 1, and an upper inner tube 5 is coaxially arranged in the upper outer tube 2, the upper end of the lower inner tube 4 and the lower end of the upper inner tube 5 being detachably connected together.

[0029] The outer diameters of the lower inner tube 4 and the upper inner tube 5 are equal to the inner diameters of the lower outer tube 1 and the upper outer tube 2 respectively, sampling ports 6 having the same shape and size as the feed inlets 3 are arranged on the same side of the lower inner tube 4 and the upper inner tube 5, the position of the sampling port 6 on the lower inner tube 4 corresponds to the position of the feed inlet 3 on the lower outer tube 1, and the position of the sampling port 6 on the upper inner tube 5 corresponds to the position of the feed inlet 3 on the upper outer tube 2.

[0030] In the above embodiment, compared with the outer tube in the prior art sampler, the outer tube in the sampler of the present application is composed of two parts, i.e., the upper outer tube 2 and the lower outer tube 1, compared with the inner tube in the prior art sampler, the inner tube in the sampler of the present application is composed of two parts, i.e., the upper inner tube 5 and the lower inner tube 4, and they can be freely detached, so that the sampler personnel can detach the outer tube and the inner tube into the upper outer tube 2, the lower outer tube 1, the upper inner tube 5 and the lower inner tube 4 with shorter length respectively, so that the carrying, moving and even storage are very convenient. When the sampler personnel needs to sample from the bulk grain pile, the lower inner tube 4 can be inserted into the lower outer tube 1 first, and then they are inserted into the grain together, when the upper end of the lower outer tube 1 and the lower inner tube 4 approaches the surface of the grain pile, the upper outer tube 2 and the upper inner tube 5 are connected together with the lower outer tube 1 and the lower inner tube 4 respectively, and then the whole device is inserted into the grain, when the lower end of the lower outer tube 1 reaches the appropriate position of the grain pile, the sampler personnel can rotate the upper inner tube 5 above the grain pile, and the upper inner tube 5 rotates together with the lower inner tube 4 in the upper outer tube 2 and the lower outer tube 1, when the sampling port 6 on the upper inner tube 5 and the lower inner tube 4 is aligned with the feeding port 3 on the upper outer tube 2 and the lower outer tube 1, the grain will automatically flow into the upper inner tube 5 and the lower inner tube 4, and the sampling operation is realized. Compared with the sampler in the prior art in which the inner tube and the outer tube are integrally formed, the sampler of the present application is not only flexible, but also easy to operate, and the sampler personnel can insert the upper outer tube 2 and the lower outer tube 1 and the upper inner tube 5 and the lower inner tube 4 in them into the grain pile for sampling step by step.

[0031] Further, as shown in Figures 1-3 the upper end of the lower outer tube 1 is sleeved with a connecting sleeve 7 and they are fixedly connected, the upper end of the connecting sleeve 7 is higher than the upper end of the lower outer tube 1, and the lower end of the upper outer tube 2 is inserted into the part of the connecting sleeve 7 above the lower outer tube 1 and they are threadedly connected.

[0032] In the above embodiment, the inner thread is arranged on the inner side of the connecting sleeve 7 fixedly connected to the upper end of the lower outer tube 1 of the present application, and the outer thread matched with the inner thread on the connecting sleeve 7 is arranged on the lower end of the upper outer tube 2, so that when the sampler personnel assembles the upper outer tube 2 and the lower outer tube 1, they only need to screw the lower end of the upper outer tube 2 on the connecting sleeve 7, and when they need to detach the upper outer tube 2 and the lower outer tube 1, they only need to unscrew the upper outer tube 2 from the connecting sleeve 7 on the lower outer tube 1, so that the operation is simple and convenient.

[0033] Further, as shown in Figures 2-4 the upper end of the lower inner tube 4 is fixedly connected with a mounting sleeve 8, the outer diameter of the mounting sleeve 8 is equal to the inner diameter of the lower inner tube 4 and the upper inner tube 5, and the lower end of the upper inner tube 5 is sleeved on the upper end of the mounting sleeve 8 and they are threadedly connected.

[0034] In the above embodiment, the mounting sleeve 8 connected to the upper end of the lower inner tube 4 has an outer diameter equal to the inner diameters of the lower inner tube 4 and the upper inner tube 5, so that after the upper inner tube 5 and the lower inner tube 4 are connected through the mounting sleeve 8, compared with the mounting sleeve 8 being sleeved outside the lower inner tube 4, the upper inner tube 5 and the lower inner tube 4 can not only move freely along the upper outer tube 2 and the lower outer tube 1 in use, but also can keep close contact with the inner walls of the upper outer tube 2 and the lower outer tube 1 during the movement, so as to prevent the grains from being stuck in the gap between them. The upper inner tube 5 of the present application can form a stable connection with the mounting sleeve 8 in use by being screwed into the part of the mounting sleeve 8 located at the upper end of the lower inner tube 4, and when the two need to be disassembled, the upper inner tube 5 only needs to be unscrewed from the mounting sleeve 8.

[0035] Further, as shown in Figures 1-3 the upper end of the upper outer tube 2 is respectively welded with a first handle mounting seat 9 on one of the opposite sides in the radial direction thereof, the first handle mounting seat 9 is provided with an internally threaded hole, and a horizontal handle 10 is threadedly connected in the internally threaded hole of the first handle mounting seat 9; the upper end of the lower outer tube 1 and the corresponding positions of the two first handle mounting seats 9 are respectively welded with a second handle mounting seat 11, the second handle mounting seat 11 is provided with an internally threaded hole of the same specification as that of the first handle mounting seat 9, and the two second handle mounting seats 11 are both located below the connecting sleeve 7 on the lower outer tube 1.

[0036] In the above embodiment, the two first handle mounting seats 9 provided on the upper outer tube 2 are respectively threadedly connected with a horizontal handle 10, so that the sampler can hold the two horizontal handles 10 with both hands when inserting the sampler into the grain pile, thereby efficiently exerting force. As shown in Figure 4 and Figure 5 the two second handle mounting seats 11 provided on the lower outer tube 1 are provided with internally threaded holes of the same specification as that of the first handle mounting seat 9, so that when the lower outer tube 1 is inserted into the grain pile in advance or the sampling position in the grain pile does not need to be too deep, the two horizontal handles 10 can be installed on the two second handle mounting seats 11, so that the lower outer tube 1 can be smoothly inserted into the grain pile by using the two horizontal handles 10.

[0037] Further, as shown in Figures 1-4 a part of the mounting sleeve 8 is located above the connecting sleeve 7, the part of the mounting sleeve 8 is provided with an external thread for connecting with the upper inner tube 5, another part of the mounting sleeve 8 is located in the connecting sleeve 7, and the overlapping area of the two is provided with a first limiting hole 12 penetrating them in the horizontal direction;

[0038] the upper end of the upper inner tube 5 is located outside the upper end of the upper outer tube 2, and the top of the part of the upper inner tube 5 is fixedly provided with an external thread sleeve 13 of the same specification as the external thread of the mounting sleeve 8, and a rotating handle 14 is threadedly connected to the external thread sleeve 13.

[0039] The second limiting hole 15 is provided at the overlapping area of the upper end of the upper inner tube 5 and the upper outer tube 2, and penetrates them in the horizontal direction. A limiting bolt 16 is inserted into the second limiting hole 15. A nut 17 is screwed onto the limiting bolt 16. The diameter of the second limiting hole 15 is equal to that of the first limiting hole 12.

[0040] In the above embodiment, when the lower inner tube 4 of the present application is inserted into the lower outer tube 1, part of the mounting sleeve 8 above the lower inner tube 4 is located in the connecting sleeve 7 at the top of the lower inner tube 4, and the other part is located above the connecting sleeve 7. This not only facilitates the assembly and disassembly of the upper inner tube 5 and the lower inner tube 4, but also offsets the connecting seams of the lower inner tube 4 and the upper inner tube 5 and the connecting seams of the lower outer tube 1 and the upper outer tube 2, thereby improving the strength. When the lower outer tube 1 of the present application is inserted into the grain pile with the lower inner tube 4, the sampling port 6 on the lower inner tube 4 and the feeding port 3 on the lower outer tube 1 are in a state of mutual offset. Thus, the lower inner tube 4 can block the lower outer tube 1 by using its tube wall to prevent the grain from entering the lower inner tube 4 in advance. However, if the sampling personnel accidentally touch the lower inner tube 4 during the insertion process, the lower inner tube 4 may rotate in the lower outer tube 1, causing the sampling port 6 on the lower inner tube 4 and the feeding port 3 on the lower outer tube 1 to accidentally communicate, thereby affecting the sampling effect. When the feeding port 3 on the lower outer tube 1 of the present application is in a closed state, the first limiting hole 12 provided at the overlapping area of the mounting sleeve 8 on the lower inner tube 4 and the connecting sleeve 7 on the lower outer tube 1 is in a penetrating state. At this time, a limiting bolt 16 can be inserted into the first limiting hole 12, and a nut 17 is screwed onto the end of the limiting bolt 16 that penetrates the first limiting hole 12. Thus, the limiting bolt 16 can temporarily limit the lower inner tube 4 and the lower outer tube 1, thereby maintaining the closed state of the feeding port 3 on the lower outer tube 1, and effectively solving the problem that the lower inner tube 4 easily rotates accidentally when the lower outer tube 1 is inserted into the grain pile with the lower inner tube 4. Similarly, when the feeding port 3 on the upper outer tube 2 of the present application is in a closed state after the upper outer tube 2 and the upper inner tube 5 are connected to the lower outer tube 1 and the lower inner tube 4 and are ready to be inserted into the grain pile, the second limiting hole 15 provided at the overlapping area of the upper end of the upper inner tube 5 and the upper end of the upper outer tube 2 is in a penetrating state. At this time, the sampling personnel can insert the limiting bolt 16 removed from the first limiting hole 12 into the second limiting hole 15, and fix the limiting bolt 16 by using the nut 17. Thus, the sampling personnel can effectively prevent the upper inner tube 5 and the lower inner tube 4 from rotating accidentally in the upper outer tube 2 and the lower outer tube 1 during the process of continuing to insert the upper outer tube 2 and the upper inner tube 5 into the grain pile. The diameters of the first limiting hole 12 and the second limiting hole 15 of the present application are smaller than the diameter of the grain. Thus, the grain cannot enter from the first limiting hole 12 and the second limiting hole 15.

[0041] The outer thread specification of the mounting sleeve 8 is the same as that of the outer thread sleeve 13 on the top of the inner tube 5, so that the sampler can flexibly use the rotating handle 14. If the sampling depth of the sampler in the grain pile is not deep, and the lower outer tube 1 and the lower inner tube 4 can meet the requirements, the sampler can install the rotating handle 14 on the outer thread of the mounting sleeve 8 to facilitate the rotation of the lower inner tube 4 in the lower outer tube 1. When the sampling depth is deep and the lower outer tube 1, the lower inner tube 4, the upper outer tube 2 and the upper inner tube 5 are used together, the rotating handle 14 can be installed on the outer thread sleeve 13 on the top of the upper inner tube 5 to facilitate the rotation of the upper inner tube 5 and the lower inner tube 4 in the upper outer tube 2 and the lower outer tube 1.

[0042] Further, as shown in Figure 2 and Figure 3 , the rotating handle 14 includes a support sleeve 141 which is sleeved on the outer thread sleeve 13 on the top of the inner tube 5 and is threadedly connected therebetween, and the support sleeve 141 is fixedly connected with a horizontally arranged rotating handle 142 on one of the opposite sides thereof in the radial direction.

[0043] In the above embodiment, the middle of the rotating handle 14 of the present application is the support sleeve 141 which can be threadedly connected with the outer thread sleeve 13 or the outer thread part of the mounting sleeve 8, so that after the device is taken out from the grain pile after completing the sampling operation, the sampler does not need to immediately disassemble the rotating handle 14, and the grain in the upper inner tube 5 and the lower inner tube 4 can be poured out, thereby effectively improving the convenience in use. The two rotating handles 142 arranged on the outside of the support sleeve 141 facilitate the sampler to exert force to rotate the upper inner tube 5 or the lower inner tube 4.

[0044] Further, as shown in Figures 2-4 , the lower half of the outer side wall of the lower outer tube 1 is uniformly provided with a plurality of helical wings 18, and the lower end of the lower outer tube 1 is conical in structure.

[0045] In the above embodiment, in the grain pile, the deeper the grain is, the greater the extrusion force it receives, and the greater the resistance the front end of the lower outer tube 1 for opening the path will receive during movement. The present application uniformly provides a plurality of helical wings 18 on the lower half of the outer side of the lower outer tube 1, and sets the lower end thereof to be conical in structure, so that the lower outer tube 1 is more relaxed when inserted into the grain pile compared to the conventional outer tube.

[0046] The implementation principle of the embodiment is that when sampling in a grain pile, the sampler can first assemble the lower outer tube 1 and the lower inner tube 4, ensure that the first limiting hole 12 at the overlapping area of the connecting sleeve 7 on the lower outer tube 1 and the mounting sleeve on the lower inner tube 4 is in a through state after assembly, then insert the limiting bolt 16 into the first limiting hole 12 and fix the limiting bolt 16 by using the nut 17, install two horizontal handles 10 on the two second handle mounting seats 11 on the lower outer tube 1, and install the rotating handle 14 on the mounting sleeve 8 at the top of the lower inner tube 4. Next, the sampler can insert the outer tube into the grain pile by holding the two horizontal handles 10 with both hands. If the length of the lower outer tube 1 is sufficient to meet the required sampling depth, the sampler can remove the limiting bolt 16 and the nut 17 when the horizontal handles 10 are close to the grain surface, rotate the lower inner tube 4 in the lower outer tube 1, and when the sampling port 6 on the lower inner tube 4 and the feeding port 3 on the lower outer tube 1 are aligned, the grain can automatically enter the lower inner tube 4. After sampling, rotate the lower inner tube 4 to close the feeding port 3 on the lower outer tube 1, and then use the limiting bolt 16 and the nut 17 to redefine the position of the two tubes. Then, the sampler can pull out the lower outer tube 1 and the lower inner tube 4 by using the horizontal handles 10, and then pour out the required sample from the upper end of the lower inner tube 4. If the length of the lower inner tube 4 cannot meet the required sampling depth, the sampler can remove the limiting bolt 16, the nut 17, and the horizontal handles 10 when the horizontal handles 10 are close to the grain surface, then connect the lower end of the upper inner tube 5 and the mounting sleeve 8 at the top of the lower inner tube 4, and then move the upper outer tube 2 downwards until the lower end of the upper outer tube 2 reaches the connecting sleeve 7 at the upper end of the lower outer tube 1, and then screw the upper outer tube 2 to the connecting sleeve 7. The second limiting hole 15 at the overlapping area of the upper end of the connected upper outer tube 2 and the upper end of the upper inner tube 5 is in a through state, and the feeding port 3 on the upper outer tube 2 is also in a closed state at this time. Next, the sampler inserts the limiting bolt 16 removed from the first limiting hole 12 into the second limiting hole 15 and fixes the limiting bolt 16 by using the nut 17, and then re-installs the horizontal handles 10 removed from the second handle mounting seat 11 on the two first handle mounting seats 9 on the upper outer tube 2. After installing the rotating handle 14 on the top of the upper inner tube 5, the sampler can hold the horizontal handles 10 and apply force downwards to make the lower outer tube 1 with the upper outer tube 2 continue to penetrate into the grain pile. After reaching the expected position, the sampler removes the limiting bolt 16 and the nut 17, holds the rotating handle 14 with both hands to drive the upper inner tube 5 and the lower inner tube 4 to rotate in the upper outer tube 2 and the lower outer tube 1, until the feeding ports 3 on the upper outer tube 2 and the lower outer tube 1 are opened, and then the sampler can obtain grain samples from the specified position of the grain pile. After filling, the sampler resets the upper inner tube 5 and the lower inner tube 4 by using the rotating handle 14, connects the upper inner tube 5 and the upper outer tube 2 by using the limiting bolt 16 and the nut 17, and then pulls out the sampler from the grain pile by using the horizontal handles 10, and finally pours out the sampled grain from the upper end of the upper inner tube 5.Compared with the prior art, the application is flexible and labor-saving in use, and convenient to carry and store.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the application, and are not limited thereto; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A grain inspection sampler characterized by: The lower outer tube (1) is coaxially provided with an upper outer tube (2) with the same diameter, the same side of the lower outer tube (1) and the upper outer tube (2) is provided with a feeding port (3), the lower end of the upper outer tube (2) and the upper end of the lower outer tube (1) are detachably connected together; The lower outer tube (1) is coaxially provided with a lower inner tube (4), the upper outer tube (2) is coaxially provided with an upper inner tube (5), the upper end of the lower inner tube (4) and the lower end of the upper inner tube (5) are detachably connected together; The outer diameter of the lower inner tube (4) and the upper inner tube (5) is equal to the inner diameter of the lower outer tube (1) and the upper outer tube (2), the same side of the lower inner tube (4) and the upper inner tube (5) is provided with a sampling port (6) with the same shape and size as the feeding port (3), the position of the sampling port (6) on the lower inner tube (4) corresponds to the position of the feeding port (3) on the lower outer tube (1), and the position of the sampling port (6) on the upper inner tube (5) corresponds to the position of the feeding port (3) on the upper outer tube (2).

2. The grain inspection sampler of claim 1, wherein: The upper end of the lower outer tube (1) is provided with a connecting sleeve (7) and is fixedly connected therebetween, the upper end of the connecting sleeve (7) is higher than the upper end of the lower outer tube (1), the lower end of the upper outer tube (2) is inserted into the part of the connecting sleeve (7) above the lower outer tube (1) and is threadedly connected therebetween.

3. The grain inspection sampler of claim 2, wherein: The upper end of the lower inner tube (4) is fixedly connected with a mounting sleeve (8), the outer diameter of the mounting sleeve (8) is equal to the inner diameter of the lower inner tube (4) and the upper inner tube (5), the lower end of the upper inner tube (5) is sleeved on the upper end of the mounting sleeve (8) and is threadedly connected therebetween.

4. The grain inspection sampler of claim 2, wherein: The upper end of the upper outer tube (2) is welded with a first handle mounting seat (9) on one of the opposite sides in the radial direction, the first handle mounting seat (9) is provided with an internal thread hole, and a horizontal handle (10) is threadedly connected in the internal thread hole of the first handle mounting seat (9); the upper end of the lower outer tube (1) is welded with a second handle mounting seat (11) at the corresponding position of the two first handle mounting seats (9), the second handle mounting seat (11) is provided with an internal thread hole with the same specification as the first handle mounting seat (9), and the two second handle mounting seats (11) are located below the connecting sleeve (7) on the lower outer tube (1).

5. The grain inspection sampler of claim 3, wherein: Part of the mounting sleeve (8) is located above the connecting sleeve (7), the part of the mounting sleeve (8) is provided with an external thread connected with the upper inner tube (5), and another part of the mounting sleeve (8) is located in the connecting sleeve (7) and is provided with a first limiting hole (12) penetrating them in the horizontal direction; The upper end of the upper inner tube (5) is located outside the upper end of the upper outer tube (2), and the top of the part of the upper inner tube (5) is fixed with an outer thread sleeve (13) with the same outer thread specification as the upper outer thread of the mounting sleeve (8), and the outer thread sleeve (13) is threadedly connected with a rotating handle (14); The area where the upper end of the upper inner tube (5) and the upper outer tube (2) overlap is provided with a second limiting hole (15) penetrating them in the horizontal direction, the second limiting hole (15) is inserted with a limiting bolt (16), the limiting bolt (16) is threadedly connected with a nut (17), and the hole diameter of the second limiting hole (15) is equal to that of the first limiting hole (12).

6. The grain inspection sampler of claim 5, wherein: The rotating handle (14) comprises a supporting sleeve (141), which is sleeved on the outer thread sleeve (13) at the top of the upper inner tube (5) and is threadedly connected therebetween, and one of the opposite sides of the supporting sleeve (141) in the radial direction is fixedly connected with a horizontally arranged rotating handle (142).

7. The grain testing sampler of any one of claims 1 to 6, wherein: The outer side wall of the lower half of the lower outer tube (1) is uniformly fixed with a plurality of helical wings (18), and the lower end of the lower outer tube (1) is in a conical structure.

Images