A kind of anti-breakage multi-tube sampler

Abstract

The utility model belongs to the field of grain sampling technology, and specifically relates to an anti-crushing multi-tube sampler, comprising a main support and a control host, a plurality of legs are fixedly connected to the lower side of the main support, a position adjustment member is installed inside the main support, a plurality of grain sampling mechanisms are installed on the position adjustment member, the position adjustment member and the plurality of grain sampling mechanisms are electrically connected to the control host, a suction pipe is fixedly connected to the upper part of the grain sampling mechanism, the grain sampling mechanism comprises an outer tube installed on the position adjustment member, an inner tube is installed inside the outer tube, an air duct is formed between the outer tube and the inner tube, a row of equally spaced air guide ports are provided on the outer side of the outer tube, a plurality of shielding groups are installed on the outer tube, the air guide ports can be blocked by the shielding groups, and a row of grain inlet ports are provided on the outer side of the outer tube. The utility model can complete the stratified sampling of grains through one continuous insertion of the grain sampling mechanism, and reduce the crushing phenomenon of grains caused by multiple insertions of the grain sampling mechanism.

Description

Technical Field

[0001] The utility model belongs to the technical field of grain sampling, and specifically relates to an anti-breakage multi-tube sampler. Background Art

[0002] As an important agricultural product, the quality of grain is directly related to food safety and economic benefits;

[0003] During grain production, storage and transportation, quality inspection is a key step to ensure grain quality. Sampling is the first step in quality inspection, and the selection of methods and tools is crucial.

[0004] At present, commonly used grain sampling tools mainly include single sampling tubes and mechanical samplers. Among them, the mechanical sampler can complete the grain sampling work by inserting the sampling tube into the grain and then sucking the grain through negative pressure;

[0005] However, during the sampling process, in order to ensure the representativeness of the samples, the samples are usually sampled in layers. During the stratified sampling process, multiple pressures on the grain will increase the damage to the grain. Utility Model Content

[0006] The utility model aims to provide an anti-breakage multi-tube sampler, which can complete the layered sampling of grains through one continuous insertion of the grain sampling mechanism, and reduce the breakage of grains caused by multiple insertions of the grain sampling mechanism.

[0007] The technical solutions adopted in this utility are as follows:

[0008] A multi-tube sampler for preventing crushing comprises a main support and a control host, a plurality of legs are fixedly connected to the lower side of the main support, a position adjustment member is installed inside the main support, a plurality of grain sampling mechanisms are installed on the position adjustment member, the position adjustment member and the plurality of grain sampling mechanisms are electrically connected to the control host, a suction pipe is fixedly connected to the upper part of the grain sampling mechanism, the grain sampling mechanism comprises an outer tube installed on the position adjustment member, an inner tube is installed inside the outer tube, an air duct is formed between the outer tube and the inner tube, a row of equally spaced air guide ports are provided on the outer side of the outer tube, a plurality of shielding groups are installed on the outer tube, and the air guide ports can be blocked by the shielding groups;

[0009] A row of external grain inlet ports are provided on the outer side of the outer tube, and a row of internal grain inlet ports matched with the external grain inlet ports are provided on the outer side of the inner tube. The internal grain inlet ports and the external grain inlet ports are opposite to each other, and are connected with each other through an adjustable connecting channel.

[0010] Furthermore, the adjustable connecting channel includes a connecting portion fixedly connected to the outside of the inner tube, an arc-shaped shielding piece is fixedly connected to the outside of the connecting portion, the outer diameter of the arc-shaped shielding piece and the inner diameter of the outer tube are clearance-matched, the inner grain inlet is opened on the inner tube, the arc-shaped shielding piece and the connecting portion, and the outer tube is also equipped with an adjustment group connected to the inner tube.

[0011] Furthermore, the arc length of the horizontal cross section of the arc-shaped shielding piece is greater than 3 / 4 of the arc length of the inner diameter of the outer tube.

[0012] Furthermore, the adjustment group includes an annular ring rotatably connected to the outer tube and a driving group driving the annular ring to rotate, and adjacent annular rings and arc-shaped shielding sheets and two adjacent arc-shaped shielding sheets are fixedly connected by connecting strips.

[0013] Furthermore, the driving group includes a servo motor fixedly connected to the outer tube, the output end of the servo motor is fixedly connected to a small gear, and the small gear is meshingly connected to a large gear fixedly connected to the outside of the annular ring.

[0014] Furthermore, the shielding group is an arc-shaped shielding piece, and the air guide port is opposite to the grain inlet port.

[0015] Furthermore, the shielding group is a filter body fixedly connected to the inside of the air guide port.

[0016] The technical effects achieved by this utility model are:

[0017] The practical anti-crushing multi-tube sampler is provided with a row of grain inlet ports and a row of air guide ports on the outer side of an outer tube, and an inner tube connected to the grain inlet ports and an air duct connected to the air guide ports are provided. The grain sampling can be completed by a single continuous insertion of the grain sampling mechanism, thereby reducing the crushing of the grain caused by multiple insertions of the grain sampling mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of this utility model;

[0019] Figure 2 It is a structural schematic diagram of the practical grain sampling mechanism;

[0020] Figure 3 It is a schematic diagram of the cross-section structure of the practical grain sampling mechanism;

[0021] Figure 4 This is a practical Figure 2 A partial enlarged view of the middle A;

[0022] Figure 5 This is a practical Figure 3 A partial enlarged view of the section at B in the middle;

[0023] Figure 6 This is a practical Figure 3 A magnified section view from another angle at point B.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Main support; 2. Support legs; 3. Position adjustment member; 4. Grain sampling mechanism; 5. Air suction pipe; 6. Outer pipe; 7. Inner pipe; 8. Arc shielding piece; 9. Inner grain inlet; 10. Connecting strip; 11. Annular ring; 12. Servo motor; 13. Small meshing gear; 14. Large meshing gear; 15. Outer grain inlet; 16. Air guide port; 17. Filter body; 18. Connecting part. DETAILED DESCRIPTION

[0026] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0027] like Figure 1-6 As shown, an anti-breakage multi-tube sampler comprises a main support 1 and a control host, a plurality of legs 2 are fixedly connected to the lower side of the main support 1, so that the main support 1 can be located in mid-air, so that a vehicle transporting grain can move to the lower side of the main support 1, a position adjustment member 3 is installed inside the main support 1, a plurality of grain sampling mechanisms 4 are installed on the position adjustment member 3, and the position adjustment member 3 and the plurality of grain sampling mechanisms 4 are electrically connected to the control host;

[0028] The position adjustment member 3 can be a combination of multiple manipulators, which can drive the grain sampling mechanism 4 to move horizontally and vertically. The upper part of the grain sampling mechanism 4 is fixedly connected with a suction pipe 5, and the suction pipe 5 is connected with a dust collection device, so that the inside of the grain sampling mechanism 4 can be sucked;

[0029] like Figure 1-2 and Figure 4-5As shown, the grain sampling mechanism 4 includes an outer tube 6 installed on the position adjustment member 3, an inner tube 7 is installed inside the outer tube 6, an air duct is formed between the outer tube 6 and the inner tube 7, and a row of air guide ports 16 arranged equidistantly are provided on the outer side of the outer tube 6. Air enters the air duct from the upper end of the air duct of the outer tube 6, and then enters the grain through the air guide ports 16. A row of grain inlet outer ports 15 are also provided on the outer side of the outer tube 6, and a row of grain inlet inner ports matched with the grain inlet outer ports 15 are provided on the outer side of the inner tube 7. 9, the grain inlet inner port 9 and the grain inlet outer port 15 are opposite to each other, and the grain inlet inner port 9 and the grain inlet outer port 15 are connected by an adjustable connecting channel. When the adjustable connecting channel is started, the grain inlet outer port 15 and the grain inlet inner port 9 are connected, and the grain can directly enter the inner tube 7 through the grain inlet outer port 15 and the grain inlet inner port 9, and then be output through the suction pipe 5. When the adjustable connecting channel is stopped, the grain inlet outer port 15 is blocked to reduce the phenomenon of grain entering the inner tube 7.

[0030] Here, if Figure 2 and Figure 4-5 As shown, the adjustable connecting channel includes a connecting portion 18 fixedly connected to the outside of the inner tube 7, and an arc-shaped shielding piece 8 is fixedly connected to the outside of the connecting portion 18. The outer diameter of the arc-shaped shielding piece 8 and the inner diameter of the outer tube 6 are clearance-matched, so that the arc-shaped shielding piece 8 can rotate and move vertically inside the outer tube 6. The grain inlet inner port 9 is opened on the inner tube 7, the arc-shaped shielding piece 8 and the connecting portion 18 to form a channel. When the grain inlet inner port 9 and the grain inlet outer port 15 are opposite to each other, grain can be fed. When the grain inlet inner port 9 and the grain inlet outer port 15 are staggered, the arc-shaped shielding piece 8 blocks the grain inlet outer port 15 to complete the blocking of the grain inlet outer port 15.

[0031] And, if Figure 5 As shown, the arc length of the horizontal section of the arc-shaped shielding piece 8 is greater than 3 / 4 of the arc length of the inner diameter of the outer tube 6, so that the arc-shaped shielding piece 8 can be stably rotated and connected to the inside of the outer tube 6, reducing the displacement of the inner tube 7 inside the outer tube 6.

[0032] Here, in order to drive the inner tube 7, the connecting portion 18 and the arc-shaped shielding piece 8 to move, the outer tube 6 is also equipped with an adjustment group connected to the inner tube 7, and the adjustment group can drive the inner tube 7 to move vertically or rotate. When the inner tube 7 moves vertically or rotates, the position of the arc-shaped shielding piece 8 can be adjusted. The adjustment group in the technical solution is as follows Figure 2-4 As shown, it includes an annular ring 11 rotatably connected to the outer tube 6 and a driving group that drives the annular ring 11 to rotate. Adjacent annular rings 11 and arc-shaped shielding sheets 8 as well as two adjacent arc-shaped shielding sheets 8 are fixedly connected by connecting strips 10, so that multiple arc-shaped shielding sheets 8 can form an integrated structure and synchronously drive multiple arc-shaped shielding sheets 8 to move.

[0033] The driving group includes a servo motor 12 fixedly connected to the outer tube 6, and the output end of the servo motor 12 is fixedly connected to a small meshing gear 13, and the small meshing gear 13 is meshingly connected to a large meshing gear 14 fixedly connected to the outside of the annular ring 11. By starting the servo motor 12, the small meshing gear 13 can be driven to rotate, and when the small meshing gear 13 rotates, it will drive the large meshing gear 14 to rotate, thereby transmitting the annular ring 11.

[0034] At the same time, multiple shielding groups are also installed on the outer tube 6, and the air guide port 16 can be blocked by the shielding group. The shielding group can be an arc-shaped shielding piece 8. At this time, the air guide port 16 is opposite to the grain inlet port 15, and the air guide port 16 is shielded by the arc-shaped shielding piece 8, so that when the grain inlet port 15 is used normally, the arc-shaped shielding piece 8 is also staggered with the air guide port 16, so that the air duct can be used normally and exhaust is discharged through the air guide port 16.

[0035] Furthermore, the shielding group may also be a filter body 17 fixedly connected to the inside of the air guide port 16 . The filter body 17 may be a filter screen, and the food may be shielded by the filter body 17 .

[0036] The working principle of the utility model is as follows: when the vehicle moves to the lower side of the main bracket 1, the position adjusting member 3 is used to drive the plurality of grain sampling mechanisms 4 to move horizontally, adjust the position of the grain sampling mechanisms 4, and then drive the grain sampling mechanisms 4 to move vertically, so that the grain sampling mechanisms 4 enter the interior of the grain. During the movement of the grain sampling mechanisms 4, the air guide port 16 and the grain inlet outer port 15 are blocked by the arc-shaped shielding piece 8 to prevent the grain from entering the interior of the inner tube 7 and the air duct. When the grain sampling mechanisms 4 have completed the movement, the driving group is used to drive the inner tube 7 to rotate, so that the grain inlet inner port 9 and the grain inlet outer port 15 are opposite to each other, so that the grain can enter the interior of the inner tube 7 through the grain inlet outer port 15 and the grain inlet inner port 9, and then the grain inside the inner tube 7 can be sucked out by negative pressure, and at the same time, air is taken in through the air guide port 16.

[0037] In summary, the technical solution provides a row of grain inlet ports 15 and a row of air guide ports 16 on the outside of the outer tube 6, and provides an inner tube 7 connected to the grain inlet ports 15 and an air duct connected to the air guide ports 16. This can complete the stratified sampling of grain through a single continuous insertion of the grain sampling mechanism 4, thereby reducing the breakage of grain caused by multiple insertions of the grain sampling mechanism 4.

[0038] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An anti-breakage multi-tube sampler, comprising a main support (1) and a control host, wherein a plurality of legs (2) are fixedly connected to the lower side of the main support (1), a position adjustment member (3) is installed inside the main support (1), a plurality of grain sampling mechanisms (4) are installed on the position adjustment member (3), the position adjustment member (3) and the plurality of grain sampling mechanisms (4) are both electrically connected to the control host, and a suction pipe (5) is fixedly connected to the upper part of the grain sampling mechanism (4), characterized in that: The grain sampling mechanism (4) comprises an outer tube (6) mounted on a position adjustment member (3), an inner tube (7) being mounted inside the outer tube (6), an air duct being formed between the outer tube (6) and the inner tube (7), a row of air guide ports (16) being arranged at equal distances being provided on the outer side of the outer tube (6), a plurality of shielding groups being mounted on the outer tube (6), and the air guide ports (16) being able to be blocked by the shielding groups; The outer side of the outer tube (6) is provided with a row of external grain inlet ports (15), and the outer side of the inner tube (7) is provided with a row of internal grain inlet ports (9) matched with the external grain inlet ports (15). The internal grain inlet ports (9) and the external grain inlet ports (15) are opposite to each other, and the internal grain inlet ports (9) and the external grain inlet ports (15) are connected via an adjustable connecting channel.

2. The anti-breakage multi-tube sampler according to claim 1, characterized in that: The adjustable connecting channel comprises a connecting portion (18) fixedly connected to the outer side of the inner tube (7); an arc-shaped shielding piece (8) is fixedly connected to the outer side of the connecting portion (18); the outer diameter of the arc-shaped shielding piece (8) and the inner diameter of the outer tube (6) are clearance-matched; the grain inlet (9) is provided on the inner tube (7), the arc-shaped shielding piece (8) and the connecting portion (18); and the outer tube (6) is also equipped with an adjusting group connected to the inner tube (7).

3. The anti-breakage multi-tube sampler according to claim 2, characterized in that: The arc length of the horizontal cross section of the arc-shaped shielding piece (8) is greater than 3 / 4 of the arc length of the inner diameter of the outer tube (6).

4. The anti-breakage multi-tube sampler according to claim 2, characterized in that: The adjustment group comprises an annular ring (11) rotatably connected to the outer tube (6) and a driving group driving the annular ring (11) to rotate, and adjacent annular rings (11) and arc-shaped shielding sheets (8) as well as two adjacent arc-shaped shielding sheets (8) are fixedly connected via a connecting strip (10).

5. The anti-breakage multi-tube sampler according to claim 4, characterized in that: The drive group comprises a servo motor (12) fixedly connected to the outer tube (6), the output end of the servo motor (12) is fixedly connected to a small gear (13), and the small gear (13) is meshingly connected to a large gear (14) fixedly connected to the outside of the annular ring (11).

6. The anti-breakage multi-tube sampler according to claim 2, characterized in that: The shielding group is an arc-shaped shielding sheet (8), and the air guide port (16) is opposite to the grain inlet port (15).

7. The anti-breakage multi-tube sampler according to claim 1, characterized in that: The shielding group is a filter body (17) fixedly connected to the inside of the air guide port (16).

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