Repelling test device

Abstract

The utility model relates to the technical field of testing devices, in particular to a repelling testing device. The repelling test device specifically comprises a test chamber and a receiving chamber, the test chamber is communicated with the receiving chamber; the test chamber is provided with an insect placing hole for placing mosquitoes; the receiving chamber is provided with a movable inserting plate and a mosquito bag, the movable inserting plate moves in the receiving chamber, and the mosquito bag is used for collecting mosquitoes in the receiving chamber. The device provided by the utility model has the advantages of testing and screening active ingredients in a development stage and not needing living bodies for luring.

Description

Technical Field

[0001] The utility model relates to the technical field of testing devices, and particularly relates to a repellent testing device. Background Art

[0002] As an important household sanitary pest, mosquitoes are important vector organisms for spreading germs and can cause various harmful vector-borne infectious diseases, such as malaria, dengue fever, Zika virus disease, etc. With the economic development and the improvement of living standards, people's demands for mosquito repellent products are becoming more and more diverse, including mosquito coils, electric mosquito repellent liquid, mosquito repellent aromatherapy for indoor use, mosquito repellent liquid, mosquito repellent stickers, mosquito repellent fans, etc. for outdoor use.

[0003] There are many currently developed repellent testing methods, but most of them are used to test the effects of finished products and rarely pay attention to the testing requirements during the product development process. One is the GB / T 13917.9 "Indoor Efficacy Test and Evaluation of Sanitary Insecticides for Pesticide Registration - Part 9: Repellents" testing method applicable to smear-type repellent products. However, this method is only applicable to smear-type products and requires human testing, which poses risks of human being bitten or infected with diseases, and the testing time is relatively long. Another is the triple-chamber testing device. Although this device can be used to test space repellent products, there may be a situation where mosquitoes always stay in the mosquito chamber during the testing process, resulting in the influence on experimental data. And live white rats may be used as attractants during the testing process. A large number of experiments are involved in the drug screening during the development process, and the extensive use of live animals also does not conform to the experimental animal ethics standards.

[0004] Therefore, in view of the deficiencies of the prior art, a repellent testing device is provided. Content of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a repellent testing device, aiming to solve the problems of using live bodies for attraction and testing and screening the active ingredients in the development stage.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A repellent testing device includes: a test chamber and a receiving chamber;

[0008] The test chamber is communicated with the receiving chamber;

[0009] The test chamber is provided with an insect-releasing hole for putting mosquitoes;

[0010] The receiving chamber is provided with a movable plugboard and a mosquito bag. The movable plugboard moves inside the receiving chamber, and the mosquito bag is used to collect the mosquitoes in the receiving chamber.

[0011] As a further improvement of the technical solution of the present utility model, the test chamber includes a frame, a front end plate, and a plurality of first panels. The front end plate is fixedly connected to the frame, one of the first panels is fixedly connected to the frame, and the remaining plurality of first panels are detachably connected to the frame.

[0012] As a further improvement of the technical solution of the present utility model, the frame includes a plurality of sliding grooves, and the sliding grooves are slidably connected to the first panels.

[0013] As a further improvement of the technical solution of the present utility model, the receiving chamber includes a rear end plate and a plurality of second panels. The plurality of second panels are fixedly connected, and the sides of the rear end plate are fixedly connected to the plurality of second panels.

[0014] As a further improvement of the technical solution of the present utility model, the rear end plate is provided with an insect collection hole, and the mosquito bag is detachably sleeved outside the insect collection hole.

[0015] As a further improvement of the technical solution of the present utility model, a slot is also provided at the second panel. The movable plug board includes a plug board body, and the plug board body penetrates through the slot and inserts into the interior of the receiving chamber.

[0016] As a further improvement of the technical solution of the present utility model, a notch is also provided at the second panel. The movable plug board further includes a pull rod. The notch communicates with the slot, and the pull rod moves along the notch.

[0017] As a further improvement of the technical solution of the present utility model, the frame is fixedly connected to the plurality of second panels.

[0018] As a further improvement of the technical solution of the present utility model, the mosquito bag is a nylon fine mesh bag.

[0019] As a further improvement of the technical solution of the present utility model, both the test chamber and the receiving chamber are square transparent boxes.

[0020] Compared with the prior art, the beneficial effects of the present utility model are:

[0021] In the repellent test device of the present utility model, before the test, the test chamber and the receiving chamber are assembled, and the liquid medicine impregnated paper is prepared and pasted on the test chamber respectively; or the repellent product is placed in the center of the test chamber. During the test, mosquitoes are placed into the insect release holes of the test chamber, and all the insect release holes are closed. Let the mosquitoes stand still in the test chamber for 3 minutes, then open the movable plugboard. In the 20 - minute period, record the number of mosquitoes escaping from the test chamber to the receiving chamber at 2 - minute intervals, and record the number of knocked - down mosquitoes at the same time. Insert the movable plugboard, move the movable plugboard to drive the mosquitoes in the receiving chamber into the mosquito bag, collect the mosquitoes and transfer them to a clean container, and then record the number of dead mosquitoes within 24 hours. This repellent test device has the characteristics of effectively testing and screening the active ingredients in the development stage and not requiring the use of live bait for attraction. Brief Description of the Drawings

[0022] The following further details the technology of the present utility model in conjunction with the drawings and specific embodiments:

[0023] Figure 1 is a three - dimensional structural schematic diagram of the repellent test device of the present utility model;

[0024] Figure 2 is a top view of the repellent test device of the present utility model;

[0025] Figure 3 is a right - hand view of the repellent test device of the present utility model;

[0026] Figure 4 is a front view of the front end plate in the repellent test device of the present utility model.

[0027] In the figure:

[0028] 1. Test chamber; 11. Insect release hole; 12. Frame; 13. Front end plate; 14. First panel; 15. Drawer door;

[0029] 2. Receiving chamber; 21. Movable plugboard; 22. Rear end plate; 23. Second panel; 24. Slot; 25. Groove; 26. Pull rod. Specific Embodiments

[0030] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present utility model in conjunction with the embodiments and the drawings, so as to fully understand the purpose, solution and effects of the present utility model. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0031] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the descriptions such as up, down, left, and right used in the present invention are only relative to the mutual positional relationship of the components of the present invention in the drawings.

[0032] Referring to Figures 1 to 4 , a repellent test device, comprising a test chamber 1 and a receiving chamber 2;

[0033] In one embodiment, the test chamber 1 communicates with the receiving chamber 2; the test chamber 1 is provided with an insect-releasing hole 11 for placing mosquitoes; the receiving chamber 2 is provided with a movable plug board 21 and a mosquito bag, the movable plug board 21 moves inside the receiving chamber 2, and the mosquito bag is used for collecting mosquitoes in the receiving chamber 2. Preferably, the insect-releasing hole 11 is a circular insect-releasing hole 11 with a diameter of 5 cm. The reason for choosing a diameter of 5 cm is that the diameter of the container for holding mosquitoes is 5 cm. An extraction door 15 is provided outside the insect-releasing hole 11 for opening and closing the insect-releasing hole 11.

[0034] Among them, before the test, the test chamber 1 and the receiving chamber 2 are assembled, and the liquid medicine impregnated paper is prepared and pasted on the test chamber 1 respectively; or the repellent product is placed in the center of the test chamber 1; during the test, mosquitoes are placed in the insect-releasing hole 11 of the test chamber 1, all the insect-releasing holes 11 are closed, and the mosquitoes are allowed to stand still in the test chamber 1 for 3 min. Then the movable plug board 21 is opened, and within 20 min, at 2-min intervals, the number of mosquitoes escaping from the test chamber 1 to the receiving chamber 2 is recorded, and at the same time, the number of knocked-down mosquitoes is recorded; the movable plug board 21 is inserted, and the movable plug board 21 is moved to drive the mosquitoes in the receiving chamber 2 into the mosquito bag, the mosquitoes are collected, transferred to a clean container, and then the number of dead mosquitoes after 24 h is recorded. This repellent test device has the characteristics of effectively testing and screening the active ingredients in the development stage and not requiring the use of live bait for attraction.

[0035] Preferably, previously, the mosquitoes after the test were collected manually using a mosquito suction tube, which had problems such as mosquito escape during collection, damage to mosquitoes during the collection process, and time-consuming and laborious collection. Now, by inserting the movable plug board 21 to isolate the mosquitoes before the test and drive the mosquitoes into the mosquito bag after the test, it is convenient to collect the test insects. The collection process is simplified, the collection time is shortened, and at the same time, the test error caused by artificial damage to the test insects is avoided.

[0036] Triple - chamber test device: The middle chamber is a mosquito chamber, and on both sides are a test chamber and a blank chamber respectively. In this case, mosquitoes may stay in the mosquito chamber all the time, making it impossible to determine whether the test sample is effective. Therefore, live animals need to be placed in the test chamber to attract mosquitoes, and check whether the mosquitoes will stay in the space with the repellent product, so as to judge the repellent effect. In this device, when there is a medicated impregnated paper or a repellent product in the test chamber, the mosquitoes will be affected and escape to the receiving chamber, and the repellent effect is judged from the number of escaped mosquitoes. This device has no intermediate blank stay area, and there are only two situations for mosquitoes: being driven away or not. So, it is not necessary to use live animals to attract mosquitoes to complete the test.

[0037] In one embodiment, referring to Figure 3 As shown, the test chamber 1 includes a frame 12, a front panel 13, and four first panels 14. The front panel 13 is fixedly connected to the frame 12. One first panel 14 is fixedly connected to the frame 12, and the remaining three first panels 14 are detachably connected to the frame 12. The outer surfaces of the remaining three first panels 14 are provided with protrusions for pushing and pulling the first panels 14. The frame 12 includes six chutes that are slidably connected to the first panels 14.

[0038] In one embodiment, the receiving chamber 2 includes a rear panel 22 and four second panels 23. The four second panels 23 are fixedly connected, and the sides of the rear panel 22 are fixedly connected to the four second panels 23. The frame 12 is fixedly connected to the four second panels 23.

[0039] In one embodiment, the rear panel 22 is provided with a mosquito collection hole, and a mosquito bag is detachably sleeved outside the mosquito collection hole. The mosquito bag is a nylon fine - mesh bag. Preferably, the mosquito collection hole is a circular bug - releasing hole 11 with a diameter of 5 cm, and the mosquito bag is pasted outside the bug - releasing hole 11 by means of Velcro for collecting and transferring the mosquitoes after the test.

[0040] In one embodiment, referring to Figure 2 As shown, a slot 24 is also provided at the second panel 23. The movable plug board 21 includes a plug - board body that penetrates through the slot 24 and inserts into the receiving chamber 2. A slot 25 is also provided at the second panel 23. The movable plug board 21 further includes a pull rod 26. The slot 25 communicates with the slot 24, and the pull rod 26 moves along the slot 25 to drive the mosquitoes without allowing them to escape. Preferably, a ball is also provided above the pull rod, which is convenient for taking while preventing tipping and causing the movable plug board 21 to fall into the receiving chamber 2.

[0041] In one embodiment, both the test chamber 1 and the receiving chamber 2 are rectangular transparent boxes with dimensions of 40 cm * 20 cm * 20 cm. The four first panels 14, the four second panels 23, the front panel 13, the rear panel 22, and the movable plug board 21 are all colorless transparent plastic plates, preferably PMMA plastic plates with a thickness of 3 mm.

[0042] In one embodiment, a liquid medicine-impregnated paper or a repellent product is prepared. The steps include:

[0043] S1. Assemble the test chamber 1 and the receiving chamber 2, prepare a liquid medicine-impregnated paper of 15 cm * 20 cm, and attach it to the four first panels 14 of the test chamber 1 respectively; or prepare a repellent test product and place it in the center of the test chamber 1;

[0044] S2. Put 30 newly emerged Culex pipiens mosquitoes that have emerged for 5 - 7 days into the insect-releasing holes 11 on the front end face, close all the insect-releasing holes 11, let the mosquitoes stand still in the test chamber 1 for 3 minutes, and conduct the test after the mosquitoes are stable;

[0045] S3. Open the movable plug board 21, and record the number of mosquitoes escaping from the test chamber 1 to the receiving chamber 2 at 2-minute intervals within 20 minutes, and record the number of knocked-down mosquitoes at the same time;

[0046] S4. Drive the mosquitoes in the receiving chamber 2 into a mosquito bag for collection, transfer them to a clean conical flask, provide a 10% sugar solution for feeding, and then record the number of dead mosquitoes within 24 hours;

[0047] S5. Analyze the data, calculate the repellency rate, knockdown rate, and mortality rate using the following formulas; at the same time, data analysis can be performed using SPSS software, and Probit analysis is used to calculate the time required for 50% of the Culex pipiens mosquitoes to escape from the test chamber 1 (ET50).

[0048] Repellency rate = number of repelled mosquitoes (number of Culex pipiens mosquitoes in the receiving chamber) / total number of insects * 100%

[0049] Knockdown rate = number of knocked-down insects / total number of insects * 100%

[0050] Mortality rate = number of dead insects / total number of collected insects * 100%

[0051] Test data 1:

[0052]

[0053] The repellency rate of the car perfume to Culex pipiens is 48.9%, the repellency rate of the mosquito repellent box to Culex pipiens is 71.1%, and the repellency rate of the mosquito repellent cake to Culex pipiens is 78.9%.

[0054] Test data 2:

[0055]

[0056]

[0057] Pyrethroid technical material 1 achieves a repellency rate of 50% at a concentration of 60 mg / m2; while pyrethroid technical material 2 can achieve a repellency rate of 50% at a concentration of less than 50 mg / m2. Therefore, under the same test conditions, the repellent effect of pyrethroid technical material 2 on Culex mosquitoes is better than that of pyrethroid technical material 1.

[0058] For other contents of the repellency test device described in the present utility model, reference can be made to the prior art and will not be elaborated herein.

[0059] The above are only preferred embodiments of the present utility model and do not impose any form of limitation on the present utility model. Therefore, any modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model still fall within the scope of the technical solution of the present utility model.

[0060] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0061] In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, 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, and it can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A repellency test device, characterized in that: include: Testing and receiving rooms; The testing chamber is in communication with the receiving chamber; The test chamber is provided with an insect hole for placing mosquitoes; The receiving chamber is provided with a movable plug plate and a mosquito bag, the movable plug plate moves inside the receiving chamber, and the mosquito bag is used to collect mosquitoes in the receiving chamber.

2. A repellency test device according to claim 1, characterized in that: The test chamber comprises a frame, a front end plate and a plurality of first panels, wherein the front end plate is fixedly connected to the frame, one of the first panels is fixedly connected to the frame, and the remaining plurality of the first panels are detachably connected to the frame.

3. A repellency test device according to claim 2, characterized in that: The frame includes a plurality of slide grooves, and the slide grooves are slidably connected to the first panel.

4. The repellency test device according to claim 2, characterized in that: The receiving chamber comprises a rear end plate and a plurality of second panels, the plurality of second panels are fixedly connected, and the sides of the rear end plate are fixedly connected to the plurality of second panels.

5. The repellency test device according to claim 4, characterized in that: The rear end plate is provided with an insect collecting hole, and the mosquito bag is detachably sleeved on the outside of the insect collecting hole.

6. The repellency test device according to claim 4, characterized in that: The second panel is also provided with a slot, and the movable plug board includes a plug board body, and the plug board body passes through the slot and is inserted into the receiving chamber.

7. The repellency test device according to claim 6, characterized in that: The second panel is also provided with a slot, and the movable plug plate further includes a pull rod, the slot is communicated with the slot, and the pull rod moves along the slot.

8. The repellency test device according to claim 4, characterized in that: The frame is fixedly connected to a plurality of the second panels.

9. The repellency test device according to claim 1, characterized in that: The mosquito bag is a nylon dense mesh bag.

10. The repellency test device according to claim 1, characterized in that: The testing chamber and the receiving chamber are both square transparent boxes.

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