A pest repellent stage release device

Abstract

The present application relates to a kind of pest repellent stage release device, including device housing, vertically arranged center column is provided in device housing, a plurality of release units are sequentially arranged in device housing along the up-down direction, each release unit includes the carrier disc fixed to the center column, wet swelling carrier is provided on the carrier disc, the inner side of wet swelling carrier is fixedly connected with the center column, repellent release body is provided on the upper side of wet swelling carrier, define the two release units adjacent in the up-down direction as upper release unit and lower release unit, the outer shell of repellent of lower release unit is provided with rupturable membrane, the outer end of rupturable membrane is connected with the outer side of wet swelling carrier of upper release unit by applying tension member.The present application provides a kind of pest repellent stage release device for extending the release time of repellent by stage release.

Description

Technical Field

[0001] This invention relates to the field of pest control technology, and in particular to a staged release device for pest repellents. Background Technology

[0002] Rice, flour, candy, and other foods may suffer losses due to the presence of pests during supermarket sales. To avoid or reduce the impact of pests on these foods, pest repellency devices are usually placed next to them. These devices typically consist of a housing containing a repellent carrier, on which a pest repellent is placed.

[0003] During use, the insect repellent evaporates into the air, using its odor to deter pests from approaching the food. The problem with existing insect repellent devices is that the repellent's evaporation time is limited. After the repellent has evaporated, the device needs to be replaced promptly. However, in current technology, the evaporation time of the repellent is limited, leading to frequent replacements, which is labor-intensive for workers. Furthermore, it's easy for workers to forget to replace the device, resulting in ineffective pest control. Summary of the Invention

[0004] The purpose of this invention is to provide a staged release device for pest repellents that prolongs the release time of the repellent through staged release.

[0005] To solve the above-mentioned technical problems, the technical solution of the pest repellent stage release device in this invention is as follows: A staged release device for pest repellent includes a housing with a vertically arranged central column inside. Multiple release units are arranged sequentially in a vertical direction within the housing. Each release unit includes a support plate fixed to the central column, with a swellable carrier on the support plate. The inner side of the swellable carrier is fixedly connected to the central column, and a repellent release body is positioned on the upper side of the swellable carrier. Two adjacent release units in the vertical direction are defined as an upper release unit and a lower release unit. The repellent of the lower release unit is surrounded by a ruptureable membrane, and the outer side of the swellable carrier of the upper release unit is connected to the outer end of the ruptureable membrane via a tensioning element.

[0006] Furthermore, the thickness of the repellent releaser gradually decreases from the center to the outer edge.

[0007] Furthermore, the applying element is a tapered membrane that is larger at the top and smaller at the bottom. The upper end of the tapered membrane is connected to the outer end of the wet expansion carrier of the upper release unit, and the outer circle of the bearing disk is located inside the upper end of the tapered membrane. The lower end of the tapered membrane is connected to the outer end of the ruptureable membrane of the lower release unit.

[0008] Furthermore, the bearing plate is provided with multiple vent holes that are radially distributed around the bearing plate axis, and the length of the vent holes extends radially along the bearing plate.

[0009] Furthermore, the central column has a hollow structure, and a water-storing ball corresponding to the number of release units is set in the inner hole of the central column. The water-storing ball is made of a puncture-resistant elastic material and stores water inside. At least one vent hole is equipped with a puncture needle that moves radially along the bearing plate and can move toward the central column as the wet expansion carrier contracts. The upper end of the puncture needle is fixedly inserted into the wet expansion carrier. The central column is provided with a central column drain hole corresponding to the water-storing ball.

[0010] Furthermore, the ruptureable membrane is a water-soluble film.

[0011] Furthermore, a supporting baffle plate is fixed in the inner hole of the central column on the lower side of each water storage ball, and the supporting baffle plate is located on the lower side of the drainage hole of the central column.

[0012] Furthermore, the central column has a puncture hole on its wall for the puncturing needle to pass through and puncture the water-storing ball.

[0013] Furthermore, a water distribution plate is fixed on the central column between the corresponding central column drainage hole and the ruptureable membrane. The water distribution plate has a conical structure that is smaller at the top and larger at the bottom, and multiple water distribution holes are provided on the water distribution plate that penetrate the water distribution plate in the vertical direction.

[0014] The beneficial effects of this invention are as follows: This invention extends the release time of the entire repellent stage release device by releasing the repellent in stages through each release unit. Specifically, during use, the lower release unit is prevented from releasing the repellent due to the presence of the ruptureable membrane. The repellent in the upper release unit evaporates and is released first. As the repellent in the upper release unit finishes evaporating, the swellable carrier can also come into contact with the air, causing its humidity to decrease. At this time, the swellable carrier will undergo a contraction deformation towards the central column. The contracted swellable carrier pulls the ruptureable membrane of the lower release unit through the pulling element, tearing the ruptureable membrane. In this way, the repellent in the lower release unit begins to evaporate and be released, thereby realizing the stage release of the repellent from different release units, thus increasing the repellent release time of the entire pest repellent stage release device. 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: Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention; Figure 2 yes Figure 1 Enlarged view of point A in the image; Figure 3 yes Figure 1 Enlarged view of point B in the image; Figure 4 yes Figure 1 Schematic diagram of the connection between the central bearing plate and the central column; Figure 5 yes Figure 1 A schematic diagram showing the connection between the water distribution plate and the central column; Figure 6 yes Figure 1 A schematic diagram of the coordination between two adjacent release units; 1. Device cylinder; 2. Central column; 3. Release unit; 4. Upper release unit; 5. Lower release unit; 6. Water storage ball; 7. Water distribution plate; 8. Applying component; 9. Wet expansion carrier; 10. Repellent release body; 11. Puncture needle; 12. Vent hole; 13. Central column puncture hole; 14. Guide sleeve; 15. Central column drainage hole; 16. Support baffle plate; 17. Water distribution hole; 18. Water distribution hole annular groove; 19. Ruptureable membrane; 20. Support plate. Detailed Implementation

[0016] To facilitate understanding of the present invention, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0017] 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 invention.

[0018] An example of an implementation of a staged release device for an insect repellent in this invention is as follows: Figures 1-6 As shown: The device includes a housing, which includes a device cylinder 1 and a cylinder bottom located at the bottom of the device cylinder 1. A vertically arranged central column 2 is fixed at the center of the cylinder bottom, and the central column 2 is arranged coaxially with the device cylinder 1.

[0019] The device housing contains multiple release units 3 arranged sequentially in the vertical direction. Each release unit 3 includes a support plate 20 fixed on the central column. The support plate 20 is provided with a moisture-expanding carrier. The moisture-expanding carrier 9 refers to a carrier that can expand when it absorbs water and shrink when it loses water. For example, the moisture-expanding carrier can be made of wood, polyamide, super absorbent resin, or other materials.

[0020] The inner side of the swelling carrier 9 is fixedly connected to the central column 2, and the outer side of the swelling carrier 9 is spaced apart from the inner wall of the device cylinder. A repellent release body 10 is provided on the upper side of the swelling carrier 9. The repellent release body 10 refers to a gel mixed with a repellent. The gel can be CrystaSense IM700 or CrystaSense IM800, or a mixture of the two. The repellent release body is prior art and will not be described in detail here.

[0021] Two adjacent release units in the vertical direction are defined as the upper release unit 4 and the lower release unit 5. The repellent of the lower release unit 5 is surrounded by a ruptureable membrane 19. The ruptureable membrane 19 is a membrane that can rupture under certain conditions. Before the ruptureable membrane ruptures, it can prevent the repellent from evaporating. In this embodiment, the condition is pulling or water dissolution. The outer side of the swelling carrier of the upper release unit is connected to the outer end of the ruptureable membrane 19 through a pulling member 8. The pulling member 8 is a tapered pulling membrane that is larger at the top and smaller at the bottom. The upper end of the tapered pulling membrane is bonded to the outer end of the swelling carrier of the upper release unit, and the outer circle of the bearing disk 20 is located inside the upper end of the tapered pulling membrane. The lower end of the tapered pulling membrane is bonded to the outer end of the ruptureable membrane of the lower release unit.

[0022] In this embodiment, the thickness of the repellent release body 10 gradually decreases from the center to the outer edge, which has the following technical effects: the outer end of the repellent release body evaporates first, thus reducing the humidity at the outer end of the swellable carrier, which allows for directional contraction of the swellable carrier inward; after the outer end of the swellable carrier contracts, the swellable carrier 9 tears the outer end of the ruptureable membrane of the lower release unit through the pulling member 8, and the outer end of the repellent release body 10 of the lower release unit begins to evaporate and release the repellent, thus replenishing the repellent of the upper release unit, ensuring the concentration of the repellent in the surrounding area, and thus ensuring the repellency effect against pests.

[0023] The support plate has multiple vent holes 12 arranged radially around its axis, with the length of each vent hole 12 extending radially along the support plate 20. The central column 2 is a hollow structure, and a water-storing ball 6 corresponding to the number of release units is installed in the inner hole of the central column 2. The water-storing ball 6 can be made of rubber material and stores water inside. A supporting baffle plate 16 is installed on the lower side of each water-storing ball, and the supporting baffle plate 16 is fixed to the inner wall of the central column 2. The water-storing ball is placed on the upper side of the supporting baffle plate. The water-storing ball is made of a puncture-resistant elastic material and stores water inside. At least one vent hole is equipped with a puncture needle 11 that moves radially along the support plate and is able to move towards the central column as the wet-expanding carrier contracts. In this embodiment, each release unit has two puncture needles 11, which are symmetrically arranged on both sides of the central column. The two puncture needles are respectively guided and installed in the corresponding vent holes. The upper end of the puncture needle 11 is fixedly inserted into the wet-expanding carrier 9. The central column is provided with a central column drain hole 15 corresponding to the water-storing ball, and each supporting baffle plate 16 is respectively provided below the corresponding central column drain hole 15.

[0024] The vent 12 serves several purposes: it provides ventilation space for the release of the repellent from the lower release unit; it also acts as a guide channel for the corresponding puncture needle 11, thus restricting its movement direction. A guide sleeve 14, with its axis extending radially along the central column and corresponding to the puncture needle, is provided on the central column 2. The inner end of the puncture needle 11 extends into the inner hole of the guide sleeve. A central column puncture hole 13, corresponding to the puncture needle, is provided on the column wall of the central column 2. Thus, when the swellable carrier gradually begins to lose water and shrink from its outer end to its inner end, the puncture needle 11 can move radially from the outside to the inside of the central column under the guidance of the guide sleeve. The inner end of the puncture needle 11 can extend into the central column through the central column puncture hole and puncture the water-storing bulb.

[0025] In this embodiment, the ruptureable membrane is a water-soluble film. A water distribution plate 7 is fixed on the central column between the corresponding central column drainage hole 15 and the ruptureable membrane. The water distribution plate 7 has a conical structure that is smaller at the top and larger at the bottom. Multiple rings of water distribution hole grooves 18 are provided on the upper surface of the water distribution plate 7, which are spaced apart from the inside to the outside. Multiple water distribution holes 17 are provided in the water distribution hole ring grooves 18, which are spaced apart in the circumferential direction and penetrate the water distribution plate in the vertical direction.

[0026] The upper end of the device housing is also provided with a cylinder cover (not shown in the figure). The cylinder cover is a prior art technology, which includes a fixed part and a rotating part rotatably assembled on the fixed part. The fixed part is provided with a cylinder cover vent hole. When the rotating part rotates, it can block the cylinder cover vent hole or open the cylinder cover vent hole.

[0027] During use, rotating the rotating part opens the vent hole of the cylinder cover. The repellent release body of the uppermost release unit begins to evaporate and release. Since the thickness of the repellent release body gradually decreases from the center to the outer edge, the outer repellent release body will evaporate first. That is to say, the outer end of the swellable carrier is exposed and loses water first. After losing water, the outer end of the swellable carrier contracts inward, moving inward with the piercing needle. In the early stage of the swellable carrier's contraction, the radial movement range of the piercing needle is small, and the piercing needle does not contact the water-storing ball. However, the swellable carrier can pull the outer end of the ruptureable membrane of the lower release unit through the pulling component, breaking the outer end of the ruptureable membrane of the lower release unit. In this way, the outer end of the repellent release body of the lower release unit begins to release repellent, thereby supplementing the amount of repellent evaporated from the upper release unit, ensuring the concentration of repellent in the surrounding area, and thus ensuring the repellency effect on surrounding pests.

[0028] As the swelling carrier in the upper release unit continues to lose water, it will continue to shrink, and the puncturing needle will continue to move inward until the tip (inner end) of the puncturing needle passes through the puncture hole of the central column. The puncturing needle then punctures the water storage ball, and the water in the water storage ball flows through the drain hole of the central column to the water distribution plate, and then flows from the inside to the outside to each ring of water distribution holes. It then flows through the water distribution holes at the bottom of the ring of water distribution holes to the ruptureable membrane of the lower release unit. The water storage capacity of the water storage ball is only sufficient to be distributed in the lower release unit, and will not flow across a release unit to a release unit located further down. For example, three adjacent release units in the vertical direction can be defined as the first release unit, the second release unit, and the third release unit. When the water storage ball of the first release unit is punctured, there is no excess water flowing to the third release unit.

[0029] After the ruptured membrane is dissolved by the water in the water storage ball, the lower release unit can normally volatilize the repellent, thus ultimately realizing the staged release of the repellent by the staged release device and increasing the release time of the repellent by the repellent release device.

[0030] In the foregoing description of this specification, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "linked" should be interpreted broadly. For example, the term "linked" 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 invention based on the specific circumstances.

[0031] 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 devices or elements 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.

[0032] 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.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention 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; and these 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 the present invention.

Claims

1. A staged release device for an insect repellent, comprising a device housing, characterized in that: The device housing contains a vertically arranged central column. Multiple release units are arranged sequentially in a vertical direction within the housing. Each release unit includes a support plate fixed to the central column. A hygroscopic carrier is placed on the support plate, and the inner side of the hygroscopic carrier is fixedly connected to the central column. A repellent release body is placed on the upper side of the hygroscopic carrier. Two adjacent release units in the vertical direction are defined as the upper release unit and the lower release unit. The repellent of the lower release unit is surrounded by a ruptureable membrane. The outer side of the hygroscopic carrier of the upper release unit is connected to the outer end of the ruptureable membrane via a tensioning element. The thickness of the repellent release body gradually decreases from the center to the outer edge. The tensioning element is a tapered tensioning membrane, wider at the top and narrower at the bottom. The upper end of the tapered tensioning membrane is connected to the outer end of the hygroscopic carrier of the upper release unit. The outer circle of the disc is located inside the upper end of the conical stretching membrane; the lower end of the conical stretching membrane is connected to the outer end of the ruptureable membrane of the lower release unit. The bearing disc is provided with multiple vent holes arranged radially around the axis of the bearing disc. The length of the vent holes extends radially along the bearing disc. The central column is a hollow structure. The inner hole of the central column is provided with water storage balls corresponding to the number of release units. The water storage balls are made of puncturable elastic material and store water inside. At least one vent hole is equipped with a puncture needle that moves radially along the bearing disc and can move towards the central column as the wet expansion carrier contracts. The upper end of the puncture needle is fixedly inserted into the wet expansion carrier. The central column is provided with a central column drain hole corresponding to the water storage ball. The ruptureable membrane is a water-soluble film.

2. The insect repellent staged release device according to claim 1, characterized in that: A supporting baffle plate is fixed in the inner hole of the central column to the lower side of each water storage ball, and the supporting baffle plate is located below the drainage hole of the central column.

3. The insect repellent staged release device according to claim 1, characterized in that: The central column has a puncture hole on its wall for the puncturing needle to pass through and puncture the water-storing ball.

4. The insect repellent staged release device according to claim 1, characterized in that: A water distribution plate is fixed on the central column between the corresponding central column drainage hole and the ruptureable membrane. The water distribution plate has a conical structure that is smaller at the top and larger at the bottom, and multiple water distribution holes are provided on the water distribution plate that penetrate the water distribution plate in the vertical direction.

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