Sampling device for grain detection

Abstract

According to the technical scheme, the sampling device is characterized by comprising an outer pipe, and a receding groove penetrating through the side wall of the outer pipe in the axis direction of the outer pipe is formed in one side of the top of the outer pipe; the inner pipe is embedded into the outer pipe, the outer wall of the inner pipe is attached to the inner wall of the outer pipe, a feeding hole penetrating through the side wall of the inner pipe is formed in the front end of one side of the top of the inner pipe, the two sides of the feeding hole are aligned to the two sides of the receding groove, and the inner pipe can slide in the outer pipe in the length direction of the outer pipe; the rotating rod is rotationally connected into the inner pipe and is coaxial with the inner pipe; the spiral conveying plate is fixedly connected outside the rotating rod, and the outer side of the spiral conveying plate is attached to the inner wall of the inner pipe; and a discharge pipe. Through the arrangement of the inner pipe, after the outer pipe and the inner pipe are inserted into a grain pile together, the depth of the feeding hole of the inner pipe in the grain pile can be changed through the sliding of the inner pipe in the outer pipe, so that grains with different depths can be sampled in sequence.

Description

Technical Field

[0001] The utility model relates to the technical field of grain detection, and more specifically, to a sampling device used for grain detection. Background Art

[0002] Food is the guarantee of people's good life, and food safety is increasingly valued by people. When testing food, food samples are taken for testing. When existing food is stored, most of the food is piled together in large quantities. When sampling, the sampler can only be inserted into the food pile for sampling.

[0003] When sampling, the existing sampler can only sample grains of one depth each time. If one wants to sample grains of different depths separately, the sample can only be taken from different positions for multiple times, which makes the sampling operation cumbersome and inconvenient. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a sampling device for grain testing, which, through the provision of an inner tube, can change the depth of the feed hole of the inner tube in the grain pile by sliding the inner tube inside the outer tube after the outer tube and the inner tube are inserted into the grain pile together, thereby realizing sequential sampling of grains at different depths.

[0005] To achieve the above object, the utility model provides the following technical solution: a sampling device for grain detection, comprising an outer tube, the outer tube is set as a round tube, and a top side of the outer tube is provided with a clearance groove penetrating the side wall of the outer tube along the axis direction of the outer tube;

[0006] An inner tube, wherein the inner tube is embedded in the outer tube and the outer wall of the inner tube is in contact with the inner wall of the outer tube, a feed hole penetrating through the side wall of the inner tube is provided at the front end of one side of the top of the inner tube, two sides of the feed hole are aligned with two sides of the give way groove, and the inner tube can slide in the outer tube along the length direction of the outer tube;

[0007] A rotating rod, which is rotatably connected in the inner tube and is coaxial with the inner tube;

[0008] A spiral conveying plate, wherein the spiral conveying plate is fixedly connected to the outside of the rotating rod and the outer side of the spiral conveying plate is in contact with the inner wall of the inner tube;

[0009] And a discharge pipe, the discharge pipe is fixedly connected to the rear end of one side of the bottom of the inner pipe, and the discharge pipe is located outside the outer pipe and is vertically arranged.

[0010] The utility model is further configured as follows: a guide cone is fixedly connected to the front end of the inner tube, the tip of the guide cone is located at an end of the guide cone away from the inner tube, the guide cone is coaxial with the inner tube and the major diameter of the guide cone is equal to the outer diameter of the inner tube.

[0011] The utility model is further configured as follows: a spiral guide plate is fixedly connected to the outside of the outer tube, and the clearance groove penetrates the spiral guide plate along the radial direction of the outer tube.

[0012] The utility model is further configured as follows: an arc-shaped sliding plate is arranged in the giving way groove, the sliding plate and the outer tube together form a complete circular tube, and the sliding plate slides in the giving way groove along the axial direction of the outer tube.

[0013] The utility model is further configured as follows: a paddle is fixedly connected to one side of the sliding plate close to the inner tube, the paddle is located at one end of the sliding plate close to the guide cone, and the paddle can be embedded in the feed hole of the inner tube.

[0014] The utility model is further configured as follows: two positioning grooves located on the outer tube are arranged on both sides of the give way groove, two positioning blocks respectively embedded in the two positioning grooves are fixedly connected on both sides of the sliding plate, and the positioning blocks slide in the corresponding positioning grooves along the axial direction of the outer tube.

[0015] The utility model is further configured as follows: one end of the sliding plate away from the guide cone is fixedly connected with a push-pull plate, and the push-pull plate extends in a direction away from the axis of the outer tube.

[0016] The utility model is further configured as follows: two guide grooves penetrating the inner tube along the axis direction of the inner tube are provided on both sides of the inner tube;

[0017] Two guide blocks fixedly connected to the inner wall of the outer tube are arranged in the two guide grooves, and the guide blocks can slide in the guide grooves along the axial direction of the outer tube.

[0018] The utility model is further configured as follows: one end of the rotating rod is rotatably connected to the guide cone, and the other end extends out from the rear end of the inner tube.

[0019] The utility model is further configured as follows: the outer tube and the sliding plate are provided with an inclined surface at one end close to the guide cone, and when the sliding plate fits with the guide cone, the inclined surface on the outer tube and the inclined surface on the guide cone are aligned with the outer side surface of the guide cone.

[0020] In summary, compared with the prior art, the utility model has the following beneficial effects: through the setting of the inner tube, after the outer tube and the inner tube are inserted into the grain pile together, the depth of the feed hole of the inner tube in the grain pile can be changed by sliding the inner tube inside the outer tube, thereby realizing sequential sampling of grains at different depths. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of an embodiment;

[0022] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0023] Figure 3 A cross-sectional view of the overall structure of the embodiment;

[0024] Figure 4 is Figure 3 An enlarged schematic view of part B of

[0025] Figure 5 A schematic view showing the feed hole in the embodiment;

[0026] Figure 6 is Figure 5 An enlarged schematic view of part C of

[0027] In the figure: 1, outer tube; 11, relief groove; 12, spiral guide plate; 13, positioning groove; 14, guide block; 2, inner tube; 21, feed hole; 22, guide groove; 3, spiral conveyor plate; 4, rotating rod; 5, guiding cone; 6, sliding plate; 61, shifting plate; 62, push-pull plate; 63, positioning block; 7, discharge pipe. Specific embodiments

[0028] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application. In addition, the directional terms mentioned in the following embodiments, such as "upper", "lower", "left", "right", etc., are only references to the directions in the drawings. Therefore, the directional terms used are for illustration rather than to limit the present invention.

[0029] The present invention will be further described below in conjunction with the drawings and preferred embodiments.

[0030] Embodiment: A sampling device for grain detection, see attached Figure 1 - attached Figure 6 , including an outer tube 1, an inner tube 2, a rotating rod 4, a spiral conveyor plate 3 and a discharge pipe 7; the outer tube 1 is set as a circular tube, and a relief groove 11 penetrating the side wall of the outer tube 1 along the axis direction of the outer tube 1 is provided on one side of the top of the outer tube 1; the inner tube 2 is embedded in the outer tube 1 and the outer wall of the inner tube 2 is in contact with the inner wall of the outer tube 1. A feed hole 21 penetrating the side wall of the inner tube 2 is opened at the front end of one side of the top of the inner tube 2. The two sides of the feed hole 21 are aligned with the two sides of the relief groove 11, and the inner tube 2 can slide along the length direction of the outer tube 1 within the outer tube 1. The rotating rod 4 is rotatably connected inside the inner tube 2 and is coaxial with the inner tube 2; the spiral conveyor plate 3 is fixedly connected outside the rotating rod 4 and the outer side of the spiral conveyor plate 3 is in contact with the inner wall of the inner tube 2. The discharge pipe 7 is fixedly connected to the rear end of one side of the bottom of the inner tube 2, and the discharge pipe 7 is located outside the outer tube 1 and is vertically arranged.

[0031] When sampling grain, the outer tube 1 and the inner tube 2 are inserted into the grain pile together, and then the rotating rod 4 is rotated. The rotation of the spiral conveying plate 3 drives the grain to enter the inner tube 2 from the feed hole 21 and then be discharged from the inner tube 2 from the discharge pipe 7; when it is necessary to sample grain at different depths, the inner tube 2 is slid in the outer tube 1 to change the depth of the feed hole 21 in the grain pile, so that grain at different depths can enter the feed hole 21 and be sent out through the discharge pipe 7, so that after being inserted into the grain pile once, grain at different depths can be sampled.

[0032] Specifically, the front end of the inner tube 2 is fixedly connected with a guide cone 5 , the tip of the guide cone 5 is located at the end of the guide cone 5 away from the inner tube 2 , the guide cone 5 is coaxial with the inner tube 2 , and the major diameter of the guide cone 5 is equal to the outer diameter of the inner tube 2 .

[0033] By providing the guide cone 5, the resistance encountered by the inner tube 2 and the outer tube 1 when being inserted into the grain pile can be reduced.

[0034] Specifically, a spiral guide plate 12 is fixedly connected to the outer tube 1, and the clearance groove 11 penetrates the spiral guide plate 12 along the radial direction of the outer tube 1. Through the arrangement of the spiral guide plate 12, when the outer tube 1 and the inner tube 2 are inserted into the grain pile, the outer tube 1 is rotated, so that the outer tube 1 is driven to be inserted into the grain pile under the action of the spiral guide plate 12.

[0035] Specifically, an arc-shaped sliding plate 6 is arranged in the clearance groove 11, and the sliding plate 6 and the outer tube 1 together form a complete circular tube, and the sliding plate 6 slides in the clearance groove 11 along the axial direction of the outer tube 1. A paddle plate 61 is fixedly connected to the side of the sliding plate 6 close to the inner tube 2, and the paddle plate 61 is located at the end of the sliding plate 6 close to the guide cone 5, and the paddle plate 61 can be embedded in the feed hole 21 of the inner tube 2. By setting the sliding plate 6, when the outer tube 1 and the inner tube 2 are inserted into the grain pile, the end of the sliding plate 6 is kept in contact with the guide cone 5, so that the feed hole 21 is closed. After being inserted to the specified depth, the sliding plate 6 is pulled outward to open the feed hole 21, thereby ensuring that the feed hole 21 will not enter the grain during the insertion process of the feed hole 21 into the grain pile, thereby ensuring the accuracy of sampling; after sampling at the deepest position specified by the feed hole 21, the sliding plate 6 is continued to be pulled outward, and the inner tube 2 is pulled outward to slide together through the base of the dial plate 61 and the hole wall of the feed hole 21 away from the guide cone 5, thereby changing the depth of the feed hole 21, thereby realizing the sampling of grains at different depths.

[0036] Specifically, two positioning grooves 13 located on the outer tube 1 are arranged on both sides of the clearance groove 11, and two positioning blocks 63 respectively embedded in the two positioning grooves 13 are fixedly connected on both sides of the sliding plate 6, and the positioning blocks 63 slide in the corresponding positioning grooves 13 along the axial direction of the outer tube 1. The positioning blocks 63 can guide the sliding direction of the sliding plate 6 and prevent the sliding plate 6 from being separated from the clearance groove 11 along the radial direction of the outer tube 1.

[0037] One end of the sliding plate 6 away from the guide cone 5 is fixedly connected with a push-pull plate 62, and the push-pull plate 62 extends in a direction away from the axis of the outer tube 1. The arrangement of the push-pull plate 62 facilitates the sliding plate 6 to be pushed and pulled.

[0038] Specifically, two guide grooves 22 are provided on both sides of the inner tube 2 and penetrate the inner tube 2 along the axial direction of the inner tube 2; two guide blocks 14 are provided in the two guide grooves 22 and are fixedly connected to the inner wall of the outer tube 1, and the guide blocks 14 can slide in the guide grooves 22 along the axial direction of the outer tube 1. Through the provision of the guide grooves 22 and the guide blocks 14, the inner tube 2 can rotate along with the outer tube 1 during the process of inserting the outer tube 1 into the grain pile, so as to keep the feed hole 21 aligned with the clearance groove 11.

[0039] Specifically, one end of the rotating rod 4 is rotatably connected to the guide cone 5, and the other end extends from the rear end of the inner tube 2; the outer tube 1 and the end of the sliding plate 6 close to the guide cone 5 are provided with inclined surfaces, and when the sliding plate 6 is in contact with the guide cone 5, the inclined surfaces on the outer tube 1 and the guide cone 5 are aligned with the outer surface of the guide cone 5.

[0040] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A sampling device for grain detection, characterized in that: It includes an outer tube (1), the outer tube (1) is set as a circular tube, and a relief groove (11) is arranged on one side of the top of the outer tube (1) and penetrates through the side wall of the outer tube (1) along the axis direction of the outer tube (1); An inner tube (2), the inner tube (2) is embedded in the outer tube (1) and the outer wall of the inner tube (2) fits against the inner wall of the outer tube (1). A feed hole (21) penetrating through the side wall of the inner tube (2) is opened at the front end of one side of the top of the inner tube (2). The two sides of the feed hole (21) are aligned with the two sides of the relief groove (11), and the inner tube (2) can slide along the length direction of the outer tube (1) within the outer tube (1); A rotating rod (4), the rotating rod (4) is rotatably connected inside the inner tube (2) and is coaxial with the inner tube (2); A spiral conveying plate (3), the spiral conveying plate (3) is fixedly connected to the outside of the rotating rod (4) and the outside of the spiral conveying plate (3) fits against the inner wall of the inner tube (2); And a discharge pipe (7), the discharge pipe (7) is fixedly connected to the rear end of one side of the bottom of the inner tube (2), and the discharge pipe (7) is located outside the outer tube (1) and is vertically arranged.

2. The sampling device for grain detection according to claim 1, wherein: A guiding cone (5) is fixedly connected to the front end of the inner tube (2), the tip of the guiding cone (5) is located at the end of the guiding cone (5) far from the inner tube (2), the guiding cone (5) is coaxial with the inner tube (2) and the major diameter of the guiding cone (5) is equal to the outer diameter of the inner tube (2).

3. The sampling device for grain detection according to claim 2, wherein: A spiral guiding plate (12) is fixedly connected to the outside of the outer tube (1), and the relief groove (11) penetrates through the spiral guiding plate (12) along the radial direction of the outer tube (1).

4. The sampling device for grain detection according to claim 3, characterized in that: An arc-shaped sliding plate (6) is arranged in the relief groove (11), the sliding plate (6) and the outer tube (1) together form a complete circular tube, and the sliding plate (6) slides along the axis direction of the outer tube (1) in the relief groove (11).

5. The sampling device for grain detection according to claim 4, characterized in that: A dial plate (61) is fixedly connected to the side of the sliding plate (6) close to the inner tube (2), the dial plate (61) is located at the end of the sliding plate (6) close to the guiding cone (5), and the dial plate (61) can be embedded into the feed hole (21) of the inner tube (2).

6. The sampling device for grain detection according to claim 5, characterized in that: Two positioning grooves (13) located on the outer tube (1) are arranged on the two sides of the relief groove (11), two positioning blocks (63) respectively embedded into the two positioning grooves (13) are fixedly connected to the two sides of the sliding plate (6), and the positioning blocks (63) slide along the axis direction of the outer tube (1) in the corresponding positioning grooves (13).

7. The sampling device for grain detection according to claim 6, characterized in that: A push-pull plate (62) is fixedly connected to the end of the sliding plate (6) far from the guiding cone (5), and the push-pull plate (62) extends towards the direction away from the axis of the outer tube (1).

8. A sampling device for grain detection according to claim 7, characterized in that: Two guiding grooves (22) penetrating through the inner tube (2) along the axis direction of the inner tube (2) are arranged on the two sides of the inner tube (2); Two guiding blocks (14) fixedly connected to the inner wall of the outer tube (1) are arranged in the two guiding grooves (22), and the guiding blocks (14) can slide along the axis direction of the outer tube (1) in the guiding grooves (22).

9. The sampling device for grain detection according to claim 8, characterized in that: One end of the rotating rod (4) is rotatably connected to the guiding cone (5), and the other end extends out from the rear end of the inner tube (2).

10. The sampling device for grain detection according to claim 9, wherein: The outer tube (1) and one end of the sliding plate (6) close to the guiding cone (5) are provided with inclined surfaces. When the sliding plate (6) is in contact with the guiding cone (5), the inclined surfaces on the outer tube (1) and the guiding cone (5) are aligned with the outer side surface of the guiding cone (5).

Images