Device for applying protective agent in grain pile

Abstract

The utility model relates to a grain bulk internal protective agent applying device which comprises an applying probe tube and an inner tube located on the inner side of the applying probe tube, an inner tube piston is assembled in the inner tube in a guiding and moving mode, an annular agent space is defined between the inner tube and the applying probe tube, and a plurality of side wing plates of hollow structures are arranged on the periphery of the applying probe tube. The tube wall of the pesticide applying probe tube is provided with probe tube air holes communicating with the annular pesticide space and inner holes of the side wing plates, the bottom of the inner tube is provided with inner tube air holes communicating with the annular pesticide space and an inner cavity of the inner tube, and an inner tube piston is assembled in the inner tube in a guiding and moving mode. A piston valve which is closed when the inner tube piston moves downwards and opened when the inner tube piston moves upwards is arranged on the inner tube piston, or an inner tube air hole valve which is closed when the inner tube piston moves upwards and opened when the inner tube piston moves downwards is arranged at the inner tube air hole, and the inner tube piston is further connected with a medicament mist guide pipe connected with a piston cavity of the inner tube. The utility model provides the device for applying the protective agent in the grain pile, which can enlarge the application range.

Description

Technical Field

[0001] This utility model relates to the field of bulk grain storage safety technology, and in particular to a device for applying protective agents to the inside of grain piles. Background Technology

[0002] Pests are one of the important factors affecting the safety of bulk grain storage. In order to reduce the damage of bulk grain by pests, it is necessary to introduce protective agents, i.e., insecticides, into the grain pile to control pests in the grain pile.

[0003] In existing technologies, the common practice is to insert a circular application tube into the grain pile. The tube has application holes on its side wall. During use, atomized protective agent is introduced into the tube, and the agent penetrates into the surrounding loose grain through the application holes, thus applying the protective agent to the surrounding grain. The problem with this existing protective agent application device is that the radius of diffusion of the protective agent through the application holes is limited, resulting in a limited overall application range. Utility Model Content

[0004] The purpose of this invention is to provide a protective agent application device for grain piles that can increase the application range.

[0005] To solve the above-mentioned technical problems, the technical solution of the grain pile internal protective agent application device of this utility model is as follows:

[0006] A protective agent application device for grain piles includes an application probe for insertion into the grain pile, an inner tube inside the application probe, an inner tube piston guided and moved within the inner hole of the inner tube, an annular agent space formed between the inner tube and the application probe, multiple hollow side wing plates on the outer periphery of the application probe, application holes on the wing plates on both sides of the circumference of the side wing plates, a probe vent hole on the tube wall of the application probe connecting the annular agent space and the inner hole of the side wing plates, an inner tube vent hole at the bottom of the inner tube connecting the annular agent space and the inner cavity of the inner tube, an inner tube piston guided and moved within the inner tube, a piston valve on the inner tube piston for closing when the inner tube piston moves downward and opening when the inner tube piston moves upward, and an agent vapor conduit connected to the piston cavity of the inner tube connected to the inner tube piston.

[0007] Furthermore, the inner tube piston is provided with a one-way valve hole that extends axially through the inner tube piston. The piston valve includes a one-way valve plate disposed below the one-way valve hole, and one end of the one-way valve plate is hinged to the bottom of the inner tube piston.

[0008] Furthermore, the atomizing agent conduit is a flexible tube.

[0009] Furthermore, a piston retaining ring is provided on the inner side of the inner tube above the vent hole of the inner tube, for engaging with the inner tube piston to limit the downward movement limit of the inner tube piston.

[0010] Furthermore, a piston rod is connected to the upper end of the inner tube piston.

[0011] Furthermore, the side wing plates are distributed radially around the axis of the drug delivery probe.

[0012] Furthermore, along the radial direction of the application probe, the thickness of each side wing plate gradually decreases from the inside to the outside.

[0013] Furthermore, the drug application probe has a drug application hole on its wall between two adjacent side wing plates. The drug application hole is used to connect the annular drug space with the circumferential space between the two adjacent side wing plates.

[0014] The beneficial effects of this utility model are as follows: When using the protective agent application device of this utility model, the application probe and side wing plates are inserted into the grain pile together. When the inner tube piston moves upward, the piston valve opens, and the piston chamber on the lower side of the inner tube piston is connected to the external atmosphere. The mist protective agent in the agent mist conduit can enter the piston chamber on the lower side of the inner tube piston. When the inner tube piston moves downward, the piston valve closes. The downward movement of the inner tube piston will compress the volume of the piston chamber, so that the mist protective agent in the piston chamber obtains a certain pressure. The mist protective agent enters the annular agent space through the vent hole of the inner tube, and then enters the inner cavity of each side wing plate through the vent hole of the probe. It then enters the surrounding grain pile through the wing plate application holes on each side wing plate. The side wing plates can expand the application radius, and the inner tube piston can increase the pressure and flow rate of the mist protective agent, thereby further increasing the diffusion range of the protective agent in the grain pile. Attached Figure Description

[0015] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of this disclosure are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding portions, wherein:

[0016] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention;

[0017] Figure 2 yes Figure 1 A top-down view showing the assembly of the side wing plates, the drug delivery probe, and the inner tube;

[0018] Figure 3 yes Figure 1 Enlarged view of point A in the image;

[0019] Figure 4 yes Figure 1 Enlarged view of point B in the image;

[0020] 1. Side wing plate; 2. Annular drug space; 3. Drug vapor duct; 4. Piston rod; 5. Inner tube; 6. Drug application probe; 7. Probe vent; 8. Cone tip; 9. Wing plate application hole; 10. One-way valve hole; 11. One-way valve plate; 12. Inner tube piston; 13. Piston retaining ring; 14. Inner tube vent; 15. First dashed line; 16. Second dashed line; 17. Drug application hole in the tube wall; 18. Conduit valve. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0022] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0023] An example of the implementation of the grain pile internal protective agent application device of this utility model is as follows: Figures 1-4 As shown:

[0024] It includes a pesticide application probe 6 that is inserted vertically into the grain pile when in use. The bottom of the pesticide application probe 6 is provided with a cone tip 8 so that the pesticide application probe 6 can be smoothly inserted into the grain pile.

[0025] An inner tube 5 is coaxially arranged inside the application probe. An inner tube piston 12 is guided and moved within the inner tube 5. A piston rod 4 is fixed to the upper end of the inner tube piston 12, and the lower side of the inner tube piston 12 is a piston chamber. An annular drug space 2 is formed between the inner tube and the application probe. Multiple hollow side wing plates 1 are arranged on the outer periphery of the application probe. Application holes 9 are arranged on both sides of the circumference of the side wing plates 1. Multiple application holes 9 are distributed on both sides of the circumference of the side wing plates. A probe vent 7 is provided on the tube wall of the application probe, connecting the annular drug space and the inner hole of the side wing plate. In this embodiment, the probe vent 7 is a rectangular structure extending in the vertical direction.

[0026] The side wing plates are arranged radially around the axis of the application probe, and the thickness of each side wing plate gradually decreases from the inside to the outside along the radial direction of the application probe. This facilitates the vertical insertion of the side wing plates into the grain pile and also helps to increase the application range of the application holes between two adjacent side wing plates.

[0027] The bottom of the inner tube is provided with an inner tube vent hole 14 that connects the annular drug space and the inner cavity of the inner tube. On the inner side of the inner tube above the inner tube vent hole, a piston retaining ring 13 is provided to cooperate with the inner tube piston to limit the downward movement limit of the inner tube piston.

[0028] The inner tube piston is equipped with a piston valve that closes when the inner tube moves downwards and opens when it moves upwards. A chemical vapor conduit 3, communicating with the piston chamber of the inner tube, is also connected to the piston. The end of the chemical vapor conduit 3 furthest from the inner tube piston is connected to a protective agent atomizing device for atomizing the protective agent. In this embodiment, the chemical vapor conduit is a flexible hose, and its function is to introduce a mist of protective agent into the piston chamber. The inner tube piston is provided with a one-way valve hole 10 that passes through the inner tube piston axially. The piston valve includes a one-way valve plate 11 located below the one-way valve hole. One end of the one-way valve plate 11 is hinged to the bottom of the inner tube piston 12. A return torsion spring is provided between the one-way valve plate 11 and the inner tube piston 12. When the inner tube piston moves upward, the angle between the one-way valve plate and the inner tube piston is 15°~45° under the action of the return torsion spring. When the inner tube piston moves downward, the pressure in the piston chamber increases, pushing the one-way valve plate upward to overcome the force of the return torsion spring. The one-way valve plate then adheres to the bottom of the inner tube piston and blocks the one-way valve hole. A conduit valve 18 is installed at the lower end of the atomizing agent conduit. This valve opens when the inner tube piston moves upward and closes when it moves downward. The structure of the conduit valve is the same as that of the piston valve and will not be described in detail here. Thus, when the inner tube piston moves downward, all the atomized protective agent in the piston chamber can enter the annular agent space through the vent hole in the inner tube. This allows the atomizing agent conduit to open when the inner tube piston moves upward, ensuring that the atomized protective agent can smoothly enter the piston chamber, and to close when the inner tube piston moves downward. In other embodiments of this invention, the piston valve and the conduit valve can also be electromagnetically controlled solenoid valves, which, through electromagnetic control, open when the inner tube piston moves upward and close when it moves downward.

[0029] In use, the operator inserts the application probe and side wing plates vertically into the grain pile. The upper end of the pesticide mist conduit is connected to the protective agent atomizing device. By repeatedly pulling and pushing the piston rod, the operator can deliver the atomized protective agent into the grain pile. The specific working principle is as follows: When the operator pulls the inner tube piston upward through the piston rod, the piston valve opens, and the piston chamber is connected to the outside atmosphere. The pressure in the piston chamber is not high, and the atomized protective agent can flow into the piston chamber through the pesticide mist conduit. When the operator pushes the inner tube piston downward through the piston rod, the piston valve closes, and the inner tube piston compresses the protective agent in the piston chamber. The protective agent is squeezed into the annular pesticide space through the vent hole of the inner tube. Some of the protective agent enters the surrounding grain pile from the inside to the outside through the application holes on the tube wall of the application probe, and some of the protective agent enters the inner cavity of the corresponding side wing plate through the vent hole of the probe, and then enters the surrounding grain pile through the wing plate application holes on the side wing plate.

[0030] In other embodiments of this utility model, the piston valve may be omitted. In this case, an inner tube vent valve is required at the inner tube vent hole for closing when the inner tube piston moves upward and opening when it moves downward. When the inner tube piston moves upward, the inner tube vent valve is closed, and the inner tube piston can draw the mist-like protective agent in the drug vapor conduit into the piston chamber. When the inner tube piston moves downward, the inner tube vent valve is opened, and the mist-like protective agent in the piston chamber can enter the annular drug space.

[0031] The drug application probe has a drug application hole on its wall between two adjacent side wing plates. The drug application hole is used to connect the annular drug space with the circumferential space between the two adjacent side wing plates. Figure 2 In the diagram, the first dashed line 15 represents the application range of the application holes on the wing plates of two adjacent wing plates; the second dashed line 16 represents the application range of the application holes on the pipe wall between the two wing plates.

[0032] In the foregoing description of this specification, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "joined" should be interpreted broadly. For example, the term "joined" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this specification, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Based on the above description in this specification, those skilled in the art will also understand that terms used, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not imply that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0034] Furthermore, the terms "first" or "second," etc., used in this specification to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as indicating, explicitly or implicitly, relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not 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 do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A grain bin interior protectant applicator comprising an applicator probe for insertion into a grain bin, characterized by: The medicine application probe is provided with an inner tube, a piston is movably arranged in the inner tube, an annular medicine space is formed between the inner tube and the medicine application probe, a plurality of side wing plates with hollow structure are arranged on the outer periphery of the medicine application probe, wing plate medicine application holes are arranged on the circumferential sides of the side wing plates, probe air holes are arranged on the tube wall of the medicine application probe and are connected with the annular medicine space and the inner holes of the side wing plates, an inner tube air hole is arranged on the bottom of the inner tube and is connected with the annular medicine space and the inner cavity of the inner tube, a piston is movably arranged in the inner tube, a piston valve is arranged on the piston and is used for closing when the piston moves downward and opening when the piston moves upward, or an inner tube air hole valve is arranged at the inner tube air hole and is used for closing when the piston moves upward and opening when the piston moves downward, and a medicine vapor guide pipe is connected with the piston cavity of the inner tube.

2. The grain protectant applicator of claim 1, wherein: A one-way valve hole is arranged on the piston and penetrates the piston in the axial direction, the piston valve comprises a one-way valve plate arranged on the lower side of the one-way valve hole, and one end of the one-way valve plate is hingedly connected with the bottom of the inner tube piston.

3. The grain protectant applicator of claim 1, wherein: The medicine vapor guide pipe is a flexible pipe.

4. The grain protectant applicator of claim 1, wherein: A piston stop ring is arranged on the inner side of the inner tube and is above the inner tube air hole, and is used for limiting the downward movement of the piston.

5. The silo interior protectant applicator of claim 1, wherein: A piston pull rod is connected with the upper end of the piston.

6. The granary internal protection agent application device according to any one of claims 1-5, characterized in that: Each side wing plate is radially distributed around the axis of the medicine application probe.

7. The silo interior protectant applicator of claim 6, wherein: In the radial direction of the medicine application probe, the thickness of each side wing plate gradually decreases from the inside to the outside.

8. The silo interior protectant applicator of claim 7, wherein: A tube wall medicine application hole is arranged on the tube wall of the medicine application probe between two adjacent side wing plates, and is used for connecting the annular medicine space with the circumferential space between the two adjacent side wing plates.

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