A storage pest pathogen release device for the surface of a grain pile

Abstract

The present invention relates to a storage pest pathogen release device for the surface of a grain pile, which comprises a cylinder body with a dome at the upper end. An insect inlet hole is provided on the dome. A partition board is arranged in the inner cavity of the cylinder body. The partition board includes an infection layer made of a water-absorbing material. A plurality of insect outlet holes are provided on the cylinder wall of the cylinder body. A worm collecting cone is arranged on the upper side of the partition board. The bottom of the worm collecting cone has a worm falling hole corresponding to the central position of the infection layer. A liquid supplement lever is hinged under the partition board in the cylinder body. A counterweight is arranged at the left end of the liquid supplement lever, and a liquid storage cylinder is arranged at the right end of the liquid supplement lever. A water-absorbing strip with the lower end extending into the liquid storage cylinder is connected to the infection layer. The storage pest pathogen release device further includes a pathogen liquid supplement tank, and the pathogen liquid supplement tank is connected to the liquid storage cylinder through a pipeline to supplement pathogen liquid into the liquid storage cylinder when the right end of the lever tilts upwards. The present invention provides a pathogen release device used on the surface of a grain pile for realizing pathogen culture and achieving biological control of pests through infection by pest pathogens.

Description

Technical Field

[0001] The present invention relates to the field of biological control of stored - grain pests, and particularly to a release device for stored - grain pest pathogens used on the surface of a grain pile. Background Art

[0002] In the control of stored - grain pests, the long - term and unreasonable use of phosphine and protectants has led to the widespread emergence of pest resistance. The widespread occurrence of resistance has reduced the control effect of traditional pesticides. In traditional techniques, there is also a method of directly inserting a trap on the surface of a grain pile to trap pests. The trap is provided with a trapping source for attracting pests, and the trapping source can be light, odor, etc. Under the attraction of the trapping source, pests enter the trap and are collected and trapped. Although this traditional trap does not require the use of insecticidal drugs, the control efficiency of the trap for pest control is relatively low.

[0003] Pathogens such as Beauveria bassiana and Metarhizium anisopliae have insecticidal activity against a variety of stored - grain pests, have the characteristics of good long - term efficacy and thorough insecticidal effect, and do not have problems such as pesticide residues, and have broad application prospects in the control of stored - grain pests.

[0004] However, pathogens have their own characteristics, which also limit their use in granaries. For example, the storage environment in granaries is relatively dry, and pathogens can only survive in a high - humidity environment. The dry storage environment is not very suitable for the survival of pathogens and is not conducive to the release of pathogens to infect pests. Summary of the Invention

[0005] The purpose of the present invention is to provide a pathogen release device used on the surface of a grain pile for realizing the cultivation of pathogens and achieving biological control of pests through the infection of pest pathogens.

[0006] To solve the above - mentioned technical problems, the technical solution of a pathogen release device for stored - grain pests in the present invention is as follows:

[0007] A release device for stored - grain pest pathogens used on the surface of a grain pile includes a cylinder body that is inserted into the grain pile during use. The upper end of the cylinder body is provided with a dome, and an insect - inlet hole is provided on the dome. A partition is provided in the inner cavity of the cylinder body. The partition includes an infection layer made of a water - absorbing material. A plurality of insect - outlet holes are circumferentially provided on the cylinder wall of the cylinder body above the infection layer. Above the partition is provided a collection cone that is larger at the top and smaller at the bottom. The bottom of the collection cone has a falling - insect hole corresponding to the central position of the infection layer. Inside the cylinder body, a lever that can swing left and right is hinged below the partition. A counterweight is provided at the left end of the lever, and a liquid storage cylinder is provided at the right end of the lever. A water - absorbing strip is connected to the infection layer and extends downward into the liquid storage cylinder. The release device for stored - grain pest pathogens further includes a pathogen replenishing tank, and the pathogen replenishing tank is connected to the liquid storage cylinder through a pipeline to supplement pathogen liquid into the liquid storage cylinder when the right end of the lever tilts upward.

[0008] Further, the partition board further includes a support board located on the lower side of the infection layer. The infection layer is arranged at the upper end of the support board. A support board perforation for the water absorption strip to pass through in the vertical direction is formed at the central position of the support board.

[0009] Further, the infection layer includes a plurality of annular grooves arranged coaxially. The insect dropping holes and the annular grooves are arranged coaxially. The water absorption strip is arranged at the center of the infection layer.

[0010] Further, the cylinder body is a conical structure with a larger upper part and a smaller lower part.

[0011] Further, the pathogenic bacterium liquid supplement tank is arranged at the upper end of the cylinder body. The pipeline includes a hard pipe connected to the liquid outlet of the pathogenic bacterium liquid supplement tank and a flexible pipe connected between the hard pipe and the upper end of the liquid storage cylinder. A switch valve is arranged on the hard pipe. A switch mechanism is connected to the liquid storage cylinder and is used to open the switch valve when the right end of the lever tilts downward and close the switch valve when the right end of the lever tilts upward.

[0012] Further, the switch mechanism includes a switch lever with a hinge axis extending in the front-back direction. An upper limit plate and a lower limit plate are arranged at intervals up and down on the right side of the liquid storage cylinder. The left end of the switch lever is located between the upper limit plate and the lower limit plate. The switch valve is a gate valve. The gate valve has a gate that can move downward to open the gate valve and move upward to close the gate valve. The right end of the switch lever is connected to the gate of the gate valve through a linkage mechanism.

[0013] Further, the linkage mechanism includes a first link arranged vertically and capable of moving up and down. The upper end of the first link is connected to the lower end of the gate. The linkage mechanism further includes a second link. The upper end of the second link is hinged to the lower end of the first link. The lower end of the second link is hinged to the right end of the switch lever.

[0014] Further, a gate return spring is connected to the first link and is used to apply an upward acting force to the first link to force the gate to move upward to close the gate valve.

[0015] The beneficial effects of the present invention are as follows: the use process of the pathogen releasing device of the present invention is as follows: when in use, the cylinder is inserted into the grain pile, the dome is exposed, and pests with the habit of climbing high climb onto the dome, and then fall into the insect collecting cone through the insect entrance hole, and under the guidance of the insect collecting cone, they fall to the center of the infection layer through the insect drop hole, and utilize the self-priming principle to absorb the pathogen liquid in the liquid storage cylinder onto the infection layer through the water absorption strip, and the pathogen liquid can grow and develop on the pathogen liquid and the infection layer, that is, the infection layer has pathogens, and in the process of the pests crawling from the center of the infection layer to the cylinder wall position of the cylinder, the pests themselves will also be infected with pathogens, and after the pests crawl out of the cylinder through the insect exit hole, the pathogens are spread through the pests' own aggregation behavior or mating behavior, which increases the probability of the pests contacting the pathogens, and when the pathogen liquid in the liquid storage cylinder is reduced, the right end of the rehydration lever tilts upward, which will trigger the corresponding switch, and the pathogen rehydration tank is connected to the liquid storage cylinder through a pipeline to ensure the continuous operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0017] Figure 1 It is a structural schematic diagram of an embodiment of a device for releasing pathogenic bacteria of stored-grain pests in the present invention;

[0018] Figure 2 yes Figure 1 Top view of the middle infection layer;

[0019] Figure 3 yes Figure 1 Schematic diagram of the state when the right end of the middle fluid replenishment lever is tilted upward;

[0020] Figure 4 yes Figure 3 A in the enlarged view;

[0021] Figure 5 yes Figure 1 Schematic diagram of the state of the middle gate valve when it is closed;

[0022] Figure 6 yes Figure 5 Schematic diagram of the state of the middle gate valve when it is opened;

[0023] Description of reference numerals: 1, cylinder body; 2, dome; 3, insect inlet hole; 4, pathogen liquid supplement tank; 5, insect collecting cone; 6, insect dropping hole; 7, insect outlet hole; 8, support plate; 9, infection layer; 10, annular groove; 11, pipeline; 12, hard pipe; 13, gate valve; 14, linkage mechanism; 15, switch lever; 16, hose; 17, water absorption strip; 18, counterweight; 19, liquid supplement lever; 20, liquid storage cylinder; 21, mounting plate; 22, upper limit plate, 23, lower limit plate; 24, first connecting rod; 25, second connecting rod; 26, gate return spring; 27, gate plate. Detailed implementation manners

[0024] For the convenience of understanding the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. The preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure content of the present invention more thorough and comprehensive.

[0025] 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 those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not used to limit the present invention.

[0026] An embodiment of a storage grain pest pathogen release device for the surface of a grain pile in the present invention is as Figures 1-6 shown:

[0027] It includes a cylinder body 1 used for inserting into a grain pile during use. The cylinder body is a conical cylinder body with a larger upper part and a smaller lower part. A dome 2 is provided at the upper end of the cylinder body 1, and a plurality of insect inlet holes 3 are evenly distributed on the dome.

[0028] A partition is provided in the inner cavity of the cylinder body. The partition includes a support plate 8 whose outer circumference is fixedly connected to the inner wall of the cylinder body. The partition also includes an infection layer 9 provided on the upper side of the support plate. The infection layer 9 is made of a water-absorbing and moisture-retaining material, such as water-absorbing resin. The infection layer 9 includes a plurality of annular grooves 10 arranged coaxially. That is to say, for the infection layer 9, its cross-sectional shape is a wavy structure.

[0029] An insect collecting cone 5 with a larger upper part and a smaller lower part is provided on the upper side of the partition. The bottom of the insect collecting cone 5 has an insect dropping hole 6 arranged coaxially with the infection layer 9. A plurality of insect outlet holes 7 are arranged circumferentially on the cylinder wall of the cylinder body 1 and are located above the infection layer 9.

[0030] A refilling lever 19 capable of swinging left and right is hinged on the lower side of the partition in the cylinder body, a counterweight 18 is fixed to the left end of the refilling lever 19, a liquid storage cylinder 20 is fixed to the right end of the refilling lever 19, and a water absorbing strip 17 whose lower end penetrates into the liquid storage cylinder 20 is connected to the infection layer 9, and the water absorbing strip 17 is a water absorbing cotton strip, and a support plate through hole is provided at the center of the support plate 8 for the water absorbing strip 17 to pass through in the up and down direction. The stored grain pest pathogen release device also includes a pathogen refilling tank 4 fixed to the upper end of the cylinder body 1, and the pathogen refilling tank 4 is connected to the liquid storage cylinder 20 through a pipe 11 to replenish pathogen liquid into the liquid storage cylinder when the right end of the lever is tilted upward. The pathogen refilling tank is made of transparent material, which is convenient for observing the remaining pathogen liquid and adding liquid.

[0031] The upper end of the water absorbing strip 17 is connected to the center of the infection layer 9, so that when the water absorbing strip absorbs the pathogen liquid from bottom to top to the infection layer 9, the pathogen liquid will spread evenly around from the center of the infection layer 9, ensuring that the pathogen liquid is evenly distributed on the infection layer 9. The pests fall onto the insect collecting cone 5 through the insect entrance hole 3, and then are guided to the insect falling hole 6 through the insect collecting cone 5, and fall to the center of the infection layer 9 through the insect falling hole 6. The pests crawl from the center of the infected insects to the insect exit hole 7 on the cylinder body, and need to climb over multiple annular grooves 10. The annular grooves 10 increase the time and space distance of the infected pests, ensuring that the pests are effectively infected with the pathogen liquid.

[0032] The pipeline includes a hard tube connected to the liquid outlet of the pathogen infusion tank and a hose 16 connected between the hard tube 12 and the upper end of the liquid storage cylinder. The hard tube 12 is provided with a switch valve. The liquid storage cylinder 20 is connected with a switch mechanism for opening the switch valve when the right end of the infusion lever is tilted downward and closing the switch valve when the right end of the infusion lever is tilted upward. The hard tube 12 includes a first pipeline fixed on the outer wall of the cylinder, the lower end of the first pipeline is connected to a second pipeline extending into the inner side of the cylinder, the second pipeline is arranged horizontally, and the hose 16 is a telescopic hose with variable length. One end of the hose 16 is connected to the end of the second pipeline, and the other end of the hose 16 is fixed to the upper end of the liquid storage cylinder 20.

[0033] The switch mechanism includes a switch lever 15 whose hinge axis extends in the front-to-back direction, that is, the switch lever 15 can also swing left and right, and an upper limit plate 22 and a lower limit plate 23 arranged at intervals from top to bottom are provided on the right side of the liquid storage cylinder 20, and the left end of the switch lever 15 is located between the upper limit plate 22 and the lower limit plate 23. In this embodiment, the switch valve is a gate valve 13, and the gate valve 13 has a gate 27 that can move downward to open the gate valve and move upward to close the gate valve. The right end of the switch lever 15 is connected to the gate of the gate valve through a connecting rod mechanism 14.

[0034] In this embodiment, the linkage mechanism includes a first link 24 which is vertically arranged and can move up and down. The first link 24 is guided and movably assembled on a guide bracket in the up-and-down direction. The guide bracket is fixed on the inner wall of the cylinder 1. The upper end of the first link 24 is connected to the lower end of the gate plate 27. The linkage mechanism further includes a second link 25. The upper end of the second link 25 is hinged to the lower end of the first link 24, and the lower end of the second link 25 is hinged to the right end of the switch lever. A [z1] is provided on the first link. A gate return spring 26 is installed between the guide bracket and the flange to apply an upward force to the first link 24 to force the gate plate 27 to move upward to close the gate valve.

[0035] During use, the water-absorbing strip sucks the pathogenic bacteria liquid in the liquid storage cylinder from bottom to top into the infection layer, and then evenly spreads from the inside to the outside on the infection layer. Both the liquid storage cylinder and the infection layer will provide a suitable environment for the cultivation of pathogenic bacteria. The pests fall onto the insect collecting cone through the insect inlet hole, and then fall to the central position of the infection layer through the insect dropping hole at the lower end of the insect collecting cone. The pests crawl outward from the central position of the infection layer to the insect outlet hole and finally crawl out of the insect outlet hole to infect other pests. During the process of the pests crawling on the infection layer, they are infected by the pathogenic bacteria. As the pathogenic bacteria liquid in the liquid storage cylinder is used, the amount of the pathogenic bacteria liquid in the liquid storage cylinder gradually decreases, the right end of the liquid supplement lever begins to tilt upward, and the height of the liquid storage cylinder increases, ensuring that the water-absorbing strip can still be immersed in the pathogenic bacteria liquid for a certain period of time to absorb the pathogenic bacteria liquid. As the right end of the liquid supplement lever continues to tilt upward, the lower limit plate on the liquid storage cylinder contacts the bottom of the left end of the switch lever and pushes up the left end of the switch lever. As Figure 4 shown, the right end of the switch lever swings downward, and the second link drives the first link and the gate plate to move downward to open the gate valve. Under the action of gravity, the pathogenic bacteria liquid in the pathogenic bacteria liquid supplement tank will flow through the hard pipe and the flexible pipe of the pipeline to the liquid storage cylinder to supplement the liquid storage cylinder. As the liquid supplement progresses, the weight of the right end of the switch lever increases, the right end of the switch lever begins to swing downward, and the lower limit plate disengages from the bottom of the left end of the liquid supplement lever. The lower limit plate no longer applies an upward force to the left end of the liquid supplement lever. Under the action of the gate return spring, the gate plate moves upward to close the gate valve. At this time, the linkage mechanism brings the switch lever to Figure 1 a posture, and the upper limit plate can prevent the right end of the switch lever from flipping downward excessively. In other embodiments of the present invention, the gate return spring may not be provided. At this time, the closing of the gate valve can be achieved by the upper limit plate applying a downward force to the left end of the switch lever. Because if there is no gate return spring, after the gate plate moves downward, the pathogenic bacteria liquid supplement tank will continuously supplement the liquid storage cylinder. As the right end of the liquid supplement lever continues to swing downward, the upper limit plate will push the left end of the switch lever to swing downward. At this time, the linkage mechanism can drive the gate plate to move upward to close the gate valve.

[0036] There is no electrically controlled automation equipment in the present invention, which can avoid power consumption, reduce the equipment failure rate, and at the same time reduce the manufacturing and application costs of the equipment.

[0037] In the above description of this specification, unless otherwise clearly specified and defined, terms such as "fixed", "installed", "connected" or "coupled" should be understood in a broad sense. For example, with respect to the term "connected", it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the communication inside two components or the interaction relationship between two components. Therefore, unless otherwise clearly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0038] According to the above description of this specification, those skilled in the art can also understand the following 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", etc. Terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings of this specification. They are only for the purpose of facilitating the description of the solution of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or component involved must have the specific orientation, be constructed and operate in the specific orientation. Therefore, the above terms of orientation or positional relationship cannot be understood or interpreted as a limitation to the solution of the present invention.

[0039] In addition, terms such as "first" or "second" used in this specification to refer to numbers or ordinals are only for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, "a plurality of" means at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements 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 the present invention.

Claims

1. A storage pest pathogen release device for the surface of a grain pile, characterized in that: Comprising a cylinder body for insertion into a grain pile during use, a dome is provided at the upper end of the cylinder body, an insect inlet hole is provided on the dome, a partition plate is provided in the inner cavity of the cylinder body, the partition plate includes an infection layer made of a water-absorbing material, a plurality of insect outlet holes are circumferentially provided on the cylinder wall of the cylinder body above the infection layer, a worm collecting cone with a larger upper part and a smaller lower part is provided above the partition plate, the bottom of the worm collecting cone has a worm dropping hole corresponding to the central position of the infection layer, a liquid supplement lever capable of swinging left and right is hinged below the partition plate in the cylinder body, a counterweight is provided at the left end of the liquid supplement lever, a liquid storage cylinder is provided at the right end of the liquid supplement lever, a water-absorbing strip with its lower end extending into the liquid storage cylinder is connected to the infection layer, the stored grain pest pathogen release device further includes a pathogen liquid supplement tank, the pathogen liquid supplement tank is connected to the liquid storage cylinder through a pipeline to supplement pathogen liquid into the liquid storage cylinder when the right end of the lever tilts upwards, the pathogen liquid supplement tank is provided at the upper end of the cylinder body, the pipeline includes a hard pipe connected to the liquid outlet of the pathogen liquid supplement tank and a flexible pipe connected between the hard pipe and the upper end of the liquid storage cylinder, a switch valve is provided on the hard pipe, a switch mechanism for opening the switch valve when the right end of the liquid storage cylinder tilts downwards and closing the switch valve when the right end of the liquid storage cylinder tilts upwards is connected to the liquid storage cylinder, the switch mechanism includes a switch lever with a hinge axis extending in the front-rear direction, an upper limit plate and a lower limit plate arranged at an upper and lower interval are provided on the right side of the liquid storage cylinder, the left end of the switch lever is located between the upper limit plate and the lower limit plate, the switch valve is a gate valve, the gate valve has a gate plate capable of moving downwards to open the gate valve and moving upwards to close the gate valve, the right end of the switch lever is connected to the gate plate of the gate valve through a linkage mechanism, the partition plate further includes a support plate below the infection layer, the infection layer is arranged at the upper end of the support plate, a support plate through hole for the water-absorbing strip to pass through in the up-down direction is provided at the central position of the support plate, the linkage mechanism includes a first link arranged vertically and capable of moving up and down, the upper end of the first link is connected to the lower end of the gate plate, the linkage mechanism further includes a second link, the upper end of the second link is hinged to the lower end of the first link, the lower end of the second link is hinged to the right end of the switch lever, a gate plate return spring for applying an upward force to the first link to force the gate plate to move upwards to close the gate valve is connected to the first link.

2. The grain storage pest pathogen release device according to claim 1, wherein: The infection layer includes a plurality of annular grooves arranged coaxially, the worm dropping hole and the annular grooves are arranged coaxially, and the water-absorbing strip is arranged at the center of the infection layer.

3. The stored grain pest pathogen release device according to claim 1, characterized in that: The cylinder body is a conical structure with a larger upper part and a smaller lower part.

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