Experimental device for studying olfactory behaviors of insects

Abstract

The invention relates to the technical field of insect olfactory behavior experiments, and discloses an experimental device for studying insect olfactory behaviors, which comprises a base, and a bracket is fixed on the base; the video recording device is mounted on the bracket; the air inlet box is fixed at the top end of the bracket; the annular pipe is fixed on the top surface of the base; the air supply assembly is arranged on the base; and the plurality of gas storage assemblies are filled with different types of test gas respectively, the plurality of gas storage assemblies are all arranged on the base, and the plurality of gas storage assemblies are distributed along the annular pipe in a circumferential array mode. According to the invention, a plurality of gas cylinders are used for storing different types of test gases, and a plurality of odor compounds can be tested at the same time, so that the smell behavior reaction of insects to different odors can be screened, and the screening efficiency of the odor compounds is improved.

Description

Technical Field

[0001] This invention relates to the field of experimental technology of insect olfactory behavior, and in particular to an experimental apparatus for studying insect olfactory behavior. Background Technology

[0002] Experimental setups for studying insect olfactory behavior typically involve a series of designs to simulate the insect's ability to perceive and respond to odors.

[0003] Existing experimental apparatuses for studying insect olfactory behavior have at least the following shortcomings in practical use:

[0004] (1) Most experiments use Y-tubes or T-mazes to conduct insect olfactory behavior experiments, but these experiments can usually only test one or two odor compounds at the same time, which limits the broad-spectrum screening of insect olfactory sensitivity because they cannot test multiple compounds at the same time, increasing the workload of preliminary screening of target substances.

[0005] (2) For insect olfactory experiments, existing technology requires experimenters to operate for a long time during the experiment, including placing insects in the experimental device, observing and recording their olfactory behavior, etc. This cumbersome operation is not only time-consuming and laborious, but may also increase experimental errors.

[0006] (3) Existing technologies have limited applicability to large-scale olfactory screening work. Since they can only test a limited number of odor compounds, it is difficult to achieve high-throughput olfactory behavior screening, thus limiting the ability to comprehensively test multiple samples in a short period of time.

[0007] (4) Some experiments require experimenters to manually record the olfactory behavior of insects, which may introduce subjectivity and inconsistency, and also increase the difficulty of data collection. The lack of automated data collection systems may limit the accuracy and repeatability of the data.

[0008] Therefore, it is necessary to design an experimental device to study the olfactory behavior of insects to solve the above problems. Summary of the Invention

[0009] The purpose of this invention is to address the shortcomings of existing technologies by proposing an experimental device for studying the olfactory behavior of insects.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] An experimental apparatus for studying the olfactory behavior of insects includes a base on which a support is fixed;

[0012] A video recording device, which is mounted on a bracket;

[0013] An air intake box, which is fixed at the top of the bracket;

[0014] An annular tube, which is fixed to the top surface of the base;

[0015] An air supply assembly, wherein the air supply assembly is mounted on a base;

[0016] A plurality of gas storage components, each of which is filled with a different type of test gas, are all placed on a base, and are arranged in a circumferential array along a ring tube.

[0017] Two opening and closing components are arranged vertically opposite each other and connected by a connecting cylinder.

[0018] Two drive components are respectively disposed on two opening and closing components;

[0019] Two observation components are respectively disposed on two opening and closing components;

[0020] Three connecting components, two of which are respectively disposed on two observation components, and the other connecting component is disposed on the air intake box;

[0021] A rotating assembly is located at the center of the top surface of the base, and the two opening and closing assemblies and the two observation assemblies are all mounted on the rotating assembly.

[0022] As a preferred embodiment of the present invention, the gas supply assembly includes:

[0023] An air pump, which is mounted on a base;

[0024] Two purification bottles are placed on a base, and both purification bottles are filled with activated carbon.

[0025] The air pump's inlet is connected to one of the purification bottles, and the air pump's outlet is connected to another purification bottle. The purification bottle connected to the air pump's outlet is equipped with an exhaust pipe, which is connected to an annular pipe.

[0026] As a preferred embodiment of the present invention, the gas storage assembly includes:

[0027] A gas cylinder, which is placed on a base and contains test gas;

[0028] The first connecting pipe has one end connected to the gas cylinder and the other end connected to the air inlet box.

[0029] The second connecting pipe has one end connected to the gas cylinder and the other end connected to the ring pipe.

[0030] Two solenoid valves and two electromagnets are respectively installed on the first connecting pipe and the second connecting pipe.

[0031] As a preferred embodiment of the present invention, the opening and closing component includes:

[0032] A retaining ring, which is connected to the connecting cylinder;

[0033] A rotating ring, which is rotatably connected to a fixed ring;

[0034] Several slides are provided, all of which are provided on the rotating ring, and the slides are arranged in a circumferential array.

[0035] A plurality of opening and closing pieces are slidably disposed between a fixed ring and a rotating ring;

[0036] A plurality of connecting rods, wherein the plurality of connecting rods are respectively fixed on a plurality of opening and closing plates;

[0037] A plurality of limiting blocks, wherein the plurality of limiting blocks are respectively fixed on a plurality of opening and closing pieces;

[0038] A limiting groove is formed on a fixed ring, and several limiting blocks are slidably connected in several limiting grooves.

[0039] As a preferred embodiment of the present invention, the driving component includes:

[0040] The motor is mounted on a retaining ring;

[0041] A gear, which is fixed to the output shaft of the motor;

[0042] A gear ring is fixedly sleeved on a rotating ring, and the gear meshes with the gear ring.

[0043] As a preferred embodiment of the present invention, the observation component includes:

[0044] An observation tube is fixed on a rotating ring. One end of the observation tube is closed and the other end is open. The open end of the observation tube is positioned directly opposite the rotating ring.

[0045] An observation window is disposed on the outer peripheral surface of the observation tube;

[0046] An opening is formed on the outer peripheral surface of the observation tube;

[0047] A mesh plate, which is fixed to the inside of the opening.

[0048] As a preferred embodiment of the present invention, the connecting component includes:

[0049] First flange;

[0050] The second flange is arranged so that the first flange and the second flange are directly opposite each other.

[0051] A bellows, wherein the bellows is disposed between the first flange and the second flange;

[0052] A plurality of guide rods are provided, all of which are fixed on a first flange, and the second flange is slidably sleeved on the plurality of guide rods.

[0053] A magnetic ring, which is fixed to the second flange.

[0054] As a preferred embodiment of the present invention, the rotating assembly includes:

[0055] A fixing frame, which is fixed to the top surface of the base;

[0056] Two bearing housings, both of which are fixed on a mounting bracket;

[0057] Two rotating shafts are respectively rotatably mounted on two bearing seats, and the ends of the two rotating shafts that are close to each other are fixedly connected to the connecting cylinder.

[0058] The motor is mounted on a fixed frame;

[0059] A speed reducer, which is mounted on a fixed frame, and the output end of the speed reducer is fixedly connected to one of the rotating shafts;

[0060] The input end of the reducer is connected to the drive shaft of the motor via a transmission component.

[0061] As a preferred embodiment of the present invention, the video recording device is positioned directly opposite the two observation tubes.

[0062] As a preferred embodiment of the present invention, the transmission component adopts a chain drive transmission method.

[0063] The present invention has the following beneficial effects:

[0064] 1. Multi-odor testing: By using multiple gas cylinders to store different types of test gases, multiple odor compounds can be tested simultaneously. This helps to screen insects' olfactory behavioral responses to different odors and improves the efficiency of odor compound screening.

[0065] 2. Saves manpower: This testing method uses automated air pumps and control devices. Staff can start the air pump and adjust the flow rate with simple operation, without having to operate manually for a long time. This saves manpower and reduces human error in the operation process.

[0066] 3. Efficient observation and recording: The video recording device faces the two observation tubes and can record the insect's behavioral response to odors. The device also has an infrared function, which can record in both light and dark environments. This provides more accurate observation and recording of olfactory behavior, which is convenient for subsequent analysis and research.

[0067] 4. Purification Design: Two purification bottles containing activated carbon are installed in the gas supply assembly to purify the gas drawn in and discharged by the gas pump, in order to eliminate possible air interference. This design helps to ensure the purity of the gas flow entering the gas bottle and improves the accuracy and repeatability of the experiment.

[0068] 5. Ensure accurate test results: By isolating the test gas and enabling continuous rotation of the observation tube, the device ensures that only air exists in the observation tube where the insect is located, and is not affected by any test gas. This helps to improve the accuracy of test results, eliminate interference factors, and enable researchers to observe and study the olfactory behavior of insects more accurately.

[0069] 6. Slow rotation of the observation tube: Through the design of the speed reducer, the connecting tube and the two observation tubes can rotate slowly and stably. This can reduce the discomfort that rapid rotation of the observation tube may cause to the insects and provide a testing condition that is more in line with the natural environment. Attached Figure Description

[0070] Figure 1 This is a schematic diagram of the structure of an experimental apparatus for studying the olfactory behavior of insects proposed in this invention;

[0071] Figure 2 for Figure 1 Enlarged view of the structure at point A;

[0072] Figure 3 This is a schematic diagram of the gas storage assembly.

[0073] Figure 4 A schematic diagram of the structure of two opening / closing components, two driving components, and two observation components;

[0074] Figure 5 This is a structural diagram of the opening / closing component and the driving component;

[0075] Figure 6 This is an exploded view of the opening and closing mechanism.

[0076] Figure 7This is a cross-sectional schematic diagram of the two opening / closing components and the two observation components;

[0077] Figure 8 This is a schematic diagram of the structure of a connected component;

[0078] Figure 9 This is a schematic diagram of the rotating assembly.

[0079] In the diagram: 1. Base, 2. Bracket, 3. Video recording device, 4. Air inlet box, 5. Ring pipe, 61. Air pump, 62. Purification bottle, 71. Gas cylinder, 72. First connecting pipe, 73. Second connecting pipe, 74. Solenoid valve, 81. Fixed ring, 82. Rotating ring, 83. Slide rail, 84. Opening and closing plate, 85. Connecting rod, 86. Limiting block, 87. Limiting groove, 91. Motor, 92. Gear, 93. Gear ring, 10. Connecting cylinder, 111. Observation cylinder, 112. Observation window, 113. Opening, 114. Mesh plate, 121. First flange, 122. Second flange, 123. Bellows, 124. Guide rod, 125. Magnetic ring, 131. Fixing frame, 132. Bearing seat, 133. Rotating shaft, 134. Motor, 135. Reducer, 136. Transmission component. Detailed Implementation

[0080] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0081] Reference Figure 1-9 An experimental apparatus for studying the olfactory behavior of insects includes a base 1, on which a support 2 is fixed; a video recording device 3, which is mounted on the support 2; an air intake box 4, which is fixed at the top of the support 2; and an annular tube 5, which is fixed to the top surface of the base 1.

[0082] A gas supply assembly is provided on the base 1, which includes: an air pump 61 mounted on the base 1; two purification bottles 62, both placed on the base 1 and filled with activated carbon; the air inlet of the air pump 61 is connected to one of the purification bottles 62, and the air outlet of the air pump 61 is connected to the other purification bottle 62. The purification bottle 62 connected to the air outlet of the air pump 61 is equipped with an exhaust pipe, which is connected to the annular pipe 5. The gas supply assembly has two purification bottles filled with activated carbon. When the air pump 61 is pumping air, one of the purification bottles filled with activated carbon can purify the air pumped by the air pump 61. When the air pump 61 is venting air, the other purification bottle filled with activated carbon can purify the air pumped by the air pump 61. This design purifies the airflow entering the gas cylinder 71 and eliminates possible interference in the air.

[0083] The base 1 is equipped with several gas storage components, each filled with a different type of test gas. These gas storage components are arranged in a circumferential array along the annular tube 5. Each gas storage component includes: a gas cylinder 71, placed on the base 1 and containing test gas; a first connecting pipe 72, one end of which is connected to the gas cylinder 71, and the other end to the air inlet box 4; a second connecting pipe 73, one end of which is connected to the gas cylinder 71, and the other end to the annular tube 5; and two solenoid valves 74, each mounted on the first connecting pipe 72 and the second connecting pipe 73. Operators can use these gas storage components to test the olfactory behavior of insects and simultaneously test multiple odor compounds, improving the efficiency of odor compound screening and saving manpower.

[0084] The base 1 is equipped with two opening and closing components, which are arranged vertically opposite each other and connected by a connecting cylinder 10. Each opening and closing component includes: a fixed ring 81 connected to the connecting cylinder 10; a rotating ring 82 rotatably connected to the fixed ring 81; a plurality of slide rails 83 all formed on the rotating ring 82 and arranged in a circumferential array; a plurality of opening and closing pieces 84 slidably disposed between the fixed ring 81 and the rotating ring 82; a plurality of connecting rods 85 respectively fixed to the plurality of opening and closing pieces 84; a plurality of limiting blocks 86 respectively fixed to the plurality of opening and closing pieces 84; and a limiting groove 87 formed on the fixed ring 81, with the plurality of limiting blocks 86 slidably connected within the plurality of limiting grooves 87. The device is equipped with two drive components, which are respectively mounted on two opening and closing components. The drive components include: a motor 91, which is mounted on a fixed ring 81; a gear 92, which is fixed on the output shaft of the motor 91; and a gear ring 93, which is fixedly sleeved on the rotating ring 82. The gear 92 and the gear ring 93 mesh with each other. When the motor 91 is powered on, it can drive the corresponding gear 92 to rotate, which causes the corresponding gear ring 93 to rotate as well. When the gear ring 93 rotates, it can drive the rotating ring 82 to rotate, which in turn drives several slide rails 83 to rotate. During this process, the slide rails 83 can respectively compress several connecting rods 85. Under the limiting action of several limiting blocks 86 and limiting grooves 87, when the several connecting rods 85 are compressed, several opening and closing pieces 84 can move synchronously.

[0085] Two observation components are provided on the base 1, and are respectively mounted on two opening and closing components. Each observation component includes: an observation cylinder 111, fixed to the rotating ring 82, with one end closed and the other open, the open end of which faces the rotating ring 82; an observation window 112, located on the outer circumferential surface of the observation cylinder 111; an opening 113, formed on the outer circumferential surface of the observation cylinder 111; and a grid plate 114, which is fixed... Inside the opening 113, the observation tube 111 has an observation window 112 to facilitate the video recording device 3 to clearly capture the insect behavior inside the observation tube 111. The observation tube 111 has a grid plate 114 to facilitate airflow. The video recording device 3 is positioned directly opposite the two observation tubes 111. The video recording device 3 can record the insect's behavioral response to odors, facilitating the observation and study of its olfactory behavior. In addition, the video recording device 3 has an infrared function, which can record in both light and dark environments.

[0086] Three connecting components are provided on the base 1. Two connecting components are respectively set on the two observation components, and the third connecting component is set on the air intake box 4. The connecting components include: a first flange 121; a second flange 122, with the first flange 121 and the second flange 122 arranged vertically opposite each other; a bellows 123, which is set between the first flange 121 and the second flange 122; several guide rods 124, which are all fixed on the first flange 121, and the second flange 122 is slidably sleeved on the several guide rods 124; and a magnetic ring 125, which is fixed on the second flange 122. By setting the guide rods 124, the second flange 122 can only move along the guide rods 124. This design allows the two connecting components to separate when the two observation cylinders 111 rotate, preventing the bellows 123 from being pulled.

[0087] A rotating assembly is provided on the base 1, located at the center of the top surface of the base 1. Two opening / closing components and two observation components are all mounted on the rotating assembly. The rotating assembly includes: a fixed frame 131, fixed to the top surface of the base 1; two bearing seats 132, both fixed to the fixed frame 131; two rotating shafts 133, each rotatably mounted on one of the bearing seats 132, with the ends of the two rotating shafts 133 close to each other fixedly connected to the connecting cylinder 10; a motor 134, mounted on the fixed frame 131; a reducer 135, mounted on the fixed frame 131, with the output end of the reducer 135 fixedly connected to one of the rotating shafts 133; and a transmission component 136. The input end of the motor 134 is connected to the drive shaft of the motor 134 via a transmission component 136. The transmission component 136 adopts a chain drive transmission method. The motor 134 runs and drives the corresponding rotating shaft 133 to rotate through the reducer 135. This causes the connecting cylinder 10, the two opening and closing components and the two observation cylinders 111 to rotate synchronously. The design of the reducer 135 allows the connecting cylinder 10 to rotate slowly. Therefore, the rapidly rotating observation cylinder 111 may cause discomfort to the insects. The design of the reducer 135 is to eliminate this influencing factor. When the two observation cylinders 111 rotate 180°, the motor 134 stops running. At this time, the two observation cylinders 111 will switch positions, and the connecting component on the observation cylinder 111 where the insect is located will be connected to the connecting component on the air inlet box 4.

[0088] The specific working principle of this invention is as follows:

[0089] In the initial state, both observation tubes 111 are set vertically. The connecting component on the upper observation tube 111 is connected to the connecting component on the air inlet box 4. Specifically, when the two magnetic rings 125 in the two connecting components are facing each other, the two magnetic rings 125 will be attracted together by the magnetic attraction. At this time, the two bellows 123 can be connected to each other. In addition, both opening and closing components are in a closed state, that is, several opening and closing pieces 84 in the opening and closing components are in contact with each other and together form a sealing surface.

[0090] During testing, the staff places the insect to be tested in the observation tube 111 at the top. The insect will land on the opening and closing mechanism at the top. Several gas cylinders 71 contain test gases, and the types of test gases in the cylinders 71 are different. This facilitates testing the insect's reaction behavior to different odors. When testing a certain gas, the staff opens the two solenoid valves 74 on the corresponding gas cylinder 71, so that the first connecting pipe 72 and the second connecting pipe 73 are in a conductive state. Then, the staff starts the air pump 61 and adjusts the flow rate of the air pump 61. When the air pump 61 is running, it can pump the gas into the annular pipe 5. Then, the gas will enter the corresponding gas cylinder 71 through the conductive second connecting pipe 73, then enter the air inlet box 74 through the first connecting pipe 72, and finally enter the observation tube 111 where the insect is located through two interconnected corrugated pipes 123, so that the test gas fills the environment where the insect is located. A video recording device 3 is also installed on the bracket 2, and the video recording device 3 is directly facing the two observation tubes. The video recording device 3 in cylinder 111 can record the behavioral responses of insects to odors, facilitating the observation and research of their olfactory behavior. In addition, the video recording device 3 has an infrared function, which can record in both light and dark environments. The specific structure and working principle of the video recording device 3 are not considered as an innovative part of this technical solution and are not shown in the figure. They will not be elaborated on here. In summary, staff can use several gas storage components to test the olfactory behavior of insects and can also test multiple odor compounds at the same time, improving the efficiency of odor compound screening and saving manpower. It should be noted that the gas supply component is equipped with two purification bottles containing activated carbon. When the air pump 61 is pumping air, one of the purification bottles containing activated carbon can purify the gas pumped by the air pump 61. When the air pump 61 is venting air, the other purification bottle containing activated carbon can purify the gas pumped by the air pump 61. This design purifies the airflow entering the gas cylinder 71 and eliminates possible interference in the air.

[0091] Furthermore, after testing the insects with the test gas from one of the gas cylinders 71, the motor 91 at the upper end is energized and rotates, driving the corresponding gear 92 to rotate. This causes the corresponding gear ring 93 to rotate as well. The rotation of the gear ring 93 drives the rotating ring 82 to rotate, which in turn drives several slide rails 83 to rotate. During this process, the slide rails 83 can respectively compress several connecting rods 85. Under the limiting action of several limiting blocks 86 and limiting grooves 87, when the connecting rods 85 are compressed, several opening and closing plates 84 can move synchronously. Based on the above process, the device uses the driving force of the motor 91 to make the several opening and closing plates 84 at the upper end move synchronously and move away from each other, so that the several opening and closing plates 84 are in the open state. At this time, the insects in the upper observation tube 111 will fall onto the lower opening and closing assembly. Figure 7 As shown, Figure 7Region A represents the space formed by the connecting cylinder 10 and the upper observation cylinder 111, and Region B represents the space formed by the connecting cylinder and the lower observation cylinder 111. As the air pump 61 operates, the concentration of the test gas in Region A gradually decreases until it disappears completely. Then, the upper motor 91 reverses its rotation, causing the several opening and closing plates 84 to re-form a sealing surface. Next, the lower motor 91 operates, causing the several opening and closing plates 84 in the lower opening and closing assembly to be in the open state. At this time, the insect will fall into the lower observation cylinder 111. When the insect falls into the lower observation cylinder 111, the motor 134 operates and drives the corresponding rotating shaft 133 to rotate via the reducer 135. This causes the connecting cylinder 10, the two opening and closing assemblies, and the two observation cylinders 111 to rotate synchronously. The design of the reducer 135 allows the connecting cylinder 10 to rotate slowly. Therefore, the rapidly rotating observation cylinder 111 may cause discomfort to the insect. The reducer 135 is designed to eliminate this influencing factor. When the two observation cylinders 111 rotate 180°, the motor 134 stops running. At this time, the two observation cylinders 111 will switch positions, and the connecting component on the observation cylinder 111 where the insect is located will connect with the connecting component on the air inlet box 4. In summary, by setting two opening and closing components, two driving components, two observation components and a rotating component, the observation cylinder 111 where the insect is located always contains only air and no test gas of any kind. This can avoid the influence of one test gas on the test results of another test gas and improve the accuracy of the test results.

[0092] It should be noted that the observation tube 111 is provided with an observation window 112 to facilitate clear filming of insect behavior inside the observation tube 111 by the video recording device 3. A mesh plate 114 is provided on the observation tube 111 to facilitate airflow. Furthermore, the start / stop times, control methods, and working principles of the electrical equipment in the device, namely the solenoid valve 74, motor 91, and motor 134, are existing technologies and are not considered innovative parts of this technical solution. They are not shown in the figure and will not be elaborated upon here. Secondly, the transmission 136 adopts a chain drive transmission method. Specifically, the transmission 136 may include two synchronous pulleys and... A synchronous belt is fitted onto two synchronous pulleys to achieve transmission between them. It should be understood that the use of synchronous pulleys and a synchronous belt for transmission in transmission 136 is not the only implementation. In some other embodiments, transmission 136 can also use sprockets and chains for transmission. The transmission method of sprockets and chains is similar to that of synchronous pulleys and a synchronous belt, and will not be described here. This invention will not elaborate on the transmission method of transmission 136 one by one. Without departing from the basic concept of this invention, the transmission method of transmission 136 can be flexibly changed, and all such changes should be considered within the protection scope defined by this invention.

[0093] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An experimental apparatus for studying the olfactory behavior of insects, characterized in that, include: A base (1), on which a bracket (2) is fixed; A video recording device (3) is mounted on a bracket (2); An air intake box (4) is fixed at the top of the bracket (2); An annular tube (5) is fixed to the top surface of the base (1); An air supply assembly is mounted on a base (1); A plurality of gas storage components, each of which is filled with different types of test gases, are placed on a base (1) and are arranged in a circumferential array along an annular tube (5). Two opening and closing components are arranged facing each other vertically and connected to each other by a connecting tube (10); Two drive components are respectively disposed on two opening and closing components; Two observation components are respectively disposed on two opening and closing components; Three connecting components, two of which are respectively disposed on two observation components, and the other connecting component is disposed on the air intake box (4); The rotating assembly is located in the middle of the top surface of the base (1), and the two opening and closing assemblies and the two observation assemblies are all mounted on the rotating assembly.

2. The experimental apparatus for studying insect olfactory behavior according to claim 1, characterized in that, The gas supply assembly includes: An air pump (61) is mounted on a base (1); Two purification bottles (62) are placed on the base (1) and both purification bottles (62) are filled with activated carbon. The air inlet of the air pump (61) is connected to one of the purification bottles (62), and the air outlet of the air pump (61) is connected to another purification bottle (62). The purification bottle (62) connected to the air outlet of the air pump (61) is provided with an exhaust pipe, and the exhaust pipe is connected to the annular pipe (5).

3. The experimental apparatus for studying insect olfactory behavior according to claim 1, characterized in that, The gas storage assembly includes: Gas cylinder (71), the gas cylinder (71) is placed on the base (1), and the gas cylinder (71) contains test gas; The first connecting pipe (72) has one end connected to the gas cylinder (71) and the other end connected to the air inlet box (4); The second connecting pipe (73) has one end connected to the gas cylinder (71) and the other end connected to the annular pipe (5); Two solenoid valves (74) and two electromagnets (74) are respectively installed on the first connecting pipe (72) and the second connecting pipe (73).

4. The experimental apparatus for studying insect olfactory behavior according to claim 1, characterized in that, The opening and closing component includes: A fixing ring (81) is connected to a connecting cylinder (10); A rotating ring (82) is rotatably connected to a fixed ring (81); A plurality of slides (83) are provided on the rotating ring (82), and the plurality of slides (83) are arranged in a circumferential array. A plurality of opening and closing pieces (84) are slidably disposed between a fixed ring (81) and a rotating ring (82); A plurality of connecting rods (85) are respectively fixed on a plurality of opening and closing plates (84); A plurality of limiting blocks (86) are fixed on a plurality of opening and closing pieces (84); The limiting groove (87) is formed on the fixing ring (81), and a plurality of limiting blocks (86) are slidably connected in the plurality of limiting grooves (87).

5. The experimental apparatus for studying insect olfactory behavior according to claim 4, characterized in that, The driving component includes: A motor (91) is mounted on a retaining ring (81); Gear (92), said gear (92) is fixed on the output shaft of motor (91); A gear ring (93) is fixedly sleeved on a rotating ring (82), and the gear (92) meshes with the gear ring (93).

6. The experimental apparatus for studying insect olfactory behavior according to claim 4, characterized in that, The observation component includes: An observation tube (111) is fixed on a rotating ring (82). One end of the observation tube (111) is closed and the other end is open. The open end of the observation tube (111) is positioned opposite the rotating ring (82). An observation window (112) is provided on the outer peripheral surface of the observation tube (111); An opening (113) is formed on the outer peripheral surface of the observation tube (111); A mesh plate (114) is fixed to the inside of the opening (113).

7. The experimental apparatus for studying insect olfactory behavior according to claim 1, characterized in that, The connectivity component includes: First flange (121); The second flange (122) is arranged with the first flange (121) and the second flange (122) facing each other vertically. A bellows (123) is disposed between a first flange (121) and a second flange (122); A plurality of guide rods (124) are fixed on a first flange (121), and a second flange (122) is slidably sleeved on the plurality of guide rods (124); A magnetic ring (125) is fixed on a second flange (122).

8. The experimental apparatus for studying insect olfactory behavior according to claim 1, characterized in that, The rotating assembly includes: A fixing frame (131) is fixed to the top surface of the base (1); Two bearing housings (132), both of which are fixed on a mounting bracket (131); Two rotating shafts (133) are respectively rotatably mounted on two bearing seats (132), and the ends of the two rotating shafts (133) that are close to each other are fixedly connected to the connecting cylinder (10); A motor (134) is mounted on a mounting bracket (131); A speed reducer (135) is mounted on a fixed frame (131), and the output end of the speed reducer (135) is fixedly connected to one of the rotating shafts (133); The input end of the reducer (135) is connected to the drive shaft of the motor (134) via the transmission component (136).

9. An experimental apparatus for studying insect olfactory behavior according to claim 6, characterized in that, The video recording device (3) is positioned directly opposite the two observation tubes (111).

10. An experimental apparatus for studying insect olfactory behavior according to claim 8, characterized in that, The transmission component (136) adopts a chain drive transmission method.

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