A mouse-proof plate mechanism with insect catching function

Abstract

The application discloses a mouse-proof plate mechanism with insect catching function, and belongs to the technical field of laboratory mouse-proof protection.The application is used to solve the problem that many arthropod insects will climb into the laboratory by turning over the mouse-proof plate in summer, and the normal experimental working environment is affected.The application comprises a driving assembly, a pre-buried frame, two mouse-proof plates and two induction switches.The pre-buried frame is buried in the ground, the driving assembly is installed in the pre-buried frame, the driving end of the driving assembly extends out of the top of the pre-buried frame and drives the two mouse-proof plates to perform a splicing action, the two induction switches are installed on the ceiling on the two sides of the door opening, and the two induction switches are both in signal connection with the driving assembly.The mouse-proof plate comprises a main plate body, N insect catching bins are installed on the front and back sides of the main plate body, N is a positive integer, the N insect catching bins are arranged in sequence along the length extension direction of the main plate body, and each insect catching bin contains an insect attractant.The application is mainly used as a mouse-proof and insect catching structure for the laboratory door opening.

Description

Technical Field

[0001] This utility model belongs to the field of laboratory rodent protection technology, specifically relating to a rodent barrier mechanism that also has insect-catching functions. Background Technology

[0002] A rodent barrier is an auxiliary structure used to prevent rats from entering a room, especially in important laboratories. To prevent rats from entering and damaging experimental reagents or equipment, this structure is often installed outside the door. This allows the laboratory door to be opened in the summer, ensuring ventilation and a good working environment. Existing patent application number 202221267956.4, entitled "An Automatic Induction-Opening Rodent Barrier Applied to a Substation Intelligent Inspection System," discloses an induction-type rodent barrier structure. It features fast response and good rodent-blocking effect, making it very suitable for important working areas such as laboratories or substations. However, in southern my country, especially in summer, in addition to rampant rat activity, many arthropods, such as cockroaches, are also in their breeding and activity season. Many laboratory staff have found that in summer, many arthropods will climb over the rodent barriers and crawl into the laboratory, affecting the normal experimental working environment. Therefore, developing a rodent barrier mechanism that also has insect-trapping functions to solve this problem is very much in line with practical needs. Utility Model Content

[0003] In order to solve the problem that many arthropods would climb over the rodent barrier and crawl into the laboratory during the summer, affecting the normal experimental working environment, this utility model provides a rodent barrier mechanism that also has the function of catching insects.

[0004] A rodent-proof barrier mechanism with insect-catching function is arranged on the outside of the doorway. The rodent-proof barrier mechanism includes a drive component, a pre-embedded frame, two rodent-proof barriers and two sensor switches. The pre-embedded frame is buried in the ground. The drive component is installed in the pre-embedded frame and the drive end of the drive component extends out of the top of the pre-embedded frame and drives the two rodent-proof barriers to assemble. The two sensor switches are respectively installed on the ceiling on the inside and outside of the doorway, and both sensor switches are signal connected to the drive component.

[0005] The rodent barrier includes a main body, with N insect traps installed on the front and back sides of the main body, where N is a positive integer. The N insect traps are arranged sequentially along the length of the main body, and each insect trap contains an insect attractant.

[0006] Furthermore, an insert groove is machined on the front and rear sides of the main body, and N insect traps on each side of the main body are installed in the insert groove. N dovetail grooves are machined at equal intervals along the length extension direction of the main body at the bottom of the insert groove.

[0007] Furthermore, N blind slots are machined at equal intervals along the length of the main body on the back of the mounting slot, and a No. 1 magnetic sheet is embedded in the bottom of each blind slot.

[0008] Furthermore, a rubber pad is attached to the splicing side of the motherboard body, and a longitudinally extending slot is machined on the bottom of the motherboard body near the rubber pad. The motherboard body is installed on the drive end of the drive component through the slot.

[0009] Furthermore, the insect trap includes a main chamber, the top of which is open and a cover is installed at the opening. The bottom of the main chamber is closed, and a dovetail block that matches the dovetail groove is fixed to the closed part of the main chamber. Several ventilation holes are evenly distributed on the front side of the main chamber. The insect attractant is placed in the main chamber and the scent is transmitted to the outside of the chamber through the ventilation holes.

[0010] Furthermore, a second magnetic sheet corresponding to the first magnetic sheet is fixed to the outside of the back side of the main chamber, and an insect-attracting pad is attached to the inside of the back side of the main chamber, with an insect-attracting agent coated on the pad.

[0011] Furthermore, a medicine compartment is provided at the bottom of the main compartment, and the medicine compartment contains insecticide;

[0012] Furthermore, the top cover includes a main cover body, the top of the main cover body is open, a cover plate is installed at the opening of the main cover body, an insect inlet is processed on the lower front side of the main cover body, an insect outlet is processed on the bottom of the main cover body, and the main cover body is connected to the main chamber body through the insect outlet. A one-way swing plate is installed inside the main cover body, and the one-way swing plate is corresponding to the insect inlet.

[0013] The beneficial effects of this application compared to the prior art are:

[0014] This application provides a rodent barrier mechanism that also functions as an insect trap. Compared to traditional rodent barrier structures, it adds multiple insect traps on the front and back sides of the barrier. Each trap contains an insect attractant and an insecticide to lure arthropods such as cockroaches into the trap. A one-way swing plate is installed at the entrance of each trap, allowing insects to push open from the outside and enter the trap while preventing them from escaping. This ensures accurate insect capture. The traps are connected to the main barrier body via dovetail blocks and magnetic attraction, preventing the traps from detaching due to the force of insect movement within the traps. This ensures stability during use. The magnetic attraction is also easy for workers to overcome, facilitating disassembly, cleaning of trapped insects, and timely replenishment of the attractant and insecticide, allowing for reuse of the traps. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the rodent barrier mechanism described in this application (when closed);

[0016] Figure 2 This is a front view schematic diagram of the rodent barrier mechanism described in this application (when open);

[0017] Figure 3 This is a side view of the rodent-blocking mechanism described in this application;

[0018] Figure 4 This is a front view schematic diagram of the rodent barrier mechanism described in this application;

[0019] Figure 5 This is a top view of the rodent barrier mechanism described in this application.

[0020] Figure 6 This is a front view schematic diagram of the main body of the mouse barrier mechanism described in this application;

[0021] Figure 7 This is a top view of the main body of the mouse barrier mechanism described in this application;

[0022] Figure 8 This is a bottom view of the main body of the mouse-blocking mechanism described in this application;

[0023] Figure 9 This is a front view schematic diagram of the insect trap chamber in the rodent barrier mechanism described in this application;

[0024] Figure 10 This is a side view of the insect trap chamber in the rodent barrier mechanism described in this application;

[0025] Figure 11 This is a schematic diagram of the drive assembly in the rodent barrier mechanism described in this application;

[0026] Figure 12 This is a schematic diagram of the main cross-section of the pre-embedded frame in the rodent barrier mechanism described in this application;

[0027] Figure 13 This is a top view of the pre-embedded frame in the rodent barrier mechanism described in this application;

[0028] Figure 14 for Figure 1 A magnified view of a section at point A in the middle;

[0029] Figure 15 This is a control circuit diagram of the forward and reverse rotating motor in the rodent-blocking mechanism described in Specific Implementation Method 5;

[0030] The diagram shows: 1. Doorway; 2. Rat barrier; 21. Main body; 211. Embedded slot; 212. Dovetail slot; 213. Blind slot; 214. Slot; 215. Through hole; 216. Rubber pad; 22. Insect trap; 221. Main chamber; 2211. Ventilation hole; 2212. Magnetic sheet No. 2; 2213. Insect attractant pad; 2214. Medicine compartment; 222. Top cover; 2221. Main cover; 2222. Cover plate; 2223. Insect inlet; 2224. One-way swing plate; 2225. Insect outlet; 223. Dovetail block; 3. Drive assembly; 31. Forward and reverse motor; 32. Coupling; 33. Double-rotating screw; 34. Support frame; 35. Screw sleeve; 36. Insert block; 37. Limit contact; 4. Embedded frame; 41. Embedded groove; 42. Top plate; 421. Guide groove; 43. Limit switch; 5. Induction switch; 6. Ground; and 7. Ceiling. Detailed Implementation

[0031] Specific implementation method one: Combining Figures 1 to 3 This embodiment describes a rodent barrier mechanism that also functions as an insect trap. The rodent barrier mechanism is arranged on the outside of the doorway 1. The rodent barrier mechanism includes a drive assembly 3, a pre-embedded frame 4, two rodent barriers 2, and two sensor switches 5. The pre-embedded frame 4 is buried in the ground 6. The drive assembly 3 is installed inside the pre-embedded frame 4, and the drive end of the drive assembly 3 extends out of the top of the pre-embedded frame 4 and drives the two rodent barriers 2 to perform a splicing action. The two sensor switches 5 are respectively installed on the ceiling 7 on the inner and outer sides of the doorway 1, and both sensor switches 5 are signal connected to the drive assembly 3.

[0032] The rodent barrier 2 includes a main body 21, with N insect traps 22 installed on the front and rear sides of the main body 21, where N is a positive integer. The N insect traps 22 are arranged sequentially along the length of the main body 21, and each insect trap 22 contains an insect attractant.

[0033] This embodiment provides a rodent barrier mechanism, characterized by multiple insect traps 22 arranged on both sides of the rodent barrier 2. By placing insect attractants and insecticides in the multiple insect traps 22, insects climbing on the rodent barrier 2 can be induced to enter the insect traps 22, and the insect traps 22 can collect and capture the insects that have entered. The induction switch 5 used in this application is a human body induction switch of model HD-3131QE3 manufactured by Hanli brand. Using the induction switch to control the joining action of the two rodent barriers 2 to realize the two states of passage and rodent blocking is a conventional and mature existing technology. Its working principle can be found in the referenced documents in the background art and common induction opening and closing door products on the market.

[0034] Specific Implementation Method Two: Combining Figures 4 to 10This embodiment differs from the first specific embodiment in that an insert groove 211 is machined on the front and rear sides of the main board 21, and N insect traps 22 on each side of the main board 21 are installed in the insert groove 211. N dovetail grooves 212 are machined at equal intervals along the length extension direction of the main board 21 at the bottom of the insert groove 211.

[0035] N blind slots 213 are machined at equal intervals along the length of the main body 21 on the back of the mounting slot 211. A magnetic sheet of number one is embedded in the bottom of each blind slot 213.

[0036] A rubber pad 216 is attached to the splicing side of the motherboard body 21. A longitudinally extending slot 214 is machined on the bottom of the motherboard body 21 near the rubber pad 216. The motherboard body 21 is installed on the drive end of the drive component 3 through the slot 214.

[0037] The insect trap 22 includes a main chamber 221. The top of the main chamber 221 is open, and a top cover 222 is installed at the opening of the main chamber 221. The bottom of the main chamber 221 is closed. A dovetail block 223 that cooperates with the dovetail groove 212 is fixed to the closed part of the main chamber 221. Several ventilation holes 2211 are evenly distributed on the front side of the main chamber 221. The insect attractant is placed in the main chamber 221 and the scent is transmitted to the outside of the chamber through the ventilation holes 2211.

[0038] The back side of the main compartment 221 is fixedly connected to the second magnetic sheet 2212, which corresponds to and matches the first magnetic sheet. The back side of the main compartment 221 is attached to the insect-attracting pad 2213, and the insect attractant is coated on the insect-attracting pad 2213.

[0039] The bottom of the main compartment 221 is equipped with a medicine compartment 2214, which contains insecticide;

[0040] The upper cover 222 includes a main cover body 2221. The top of the main cover body 2221 is open, and a cover plate 2222 is installed at the opening. An insect inlet 2223 is machined on the lower front side of the main cover body 2221, and an insect outlet 2225 is machined on the bottom of the main cover body 2221. The main cover body 2221 is connected to the main chamber body 221 through the insect outlet 2225. A one-way swing plate 2224 is installed inside the main cover body 2221, and the one-way swing plate 2224 is correspondingly arranged with the insect inlet 2223. Other components and connection methods are the same as in specific embodiment one.

[0041] In this embodiment, the main body 21 is the main part of the rodent barrier 2, and its material is stainless steel. The insect trap 22 is embedded on both sides of the main body 21. The main body of the insect trap 22 is made of high-strength PC endurance board, and its main body consists of three parts. The main compartment 221 is the main place for containing and capturing insects. The insect-attracting pad 2213 inside its back side has a porous structure. When in use, the purchased insect attractant is sprayed onto the insect-attracting pad 2213. The insect-attracting pad 2213 will initially absorb the insect attractant and then release it through the porous structure. The front side is processed with multiple ventilation holes 2211, and the odor of the insect attractant diffuses into the air through the multiple ventilation holes 2211. The insect trap 2213 attracts arthropods near the rodent barrier 2 and makes them crawl into the trap. To further improve the trapping effect, the surface of the insect-attracting pad 2213 can be dyed, specifically blue or yellow, to increase visual attraction and thus attract insects. The ventilation hole 2211 on the front side of the trap 22 not only diffuses the scent, but also changes the smooth structure of the front plane of the trap 22, providing a foothold for insects to climb and allowing them to enter the trap smoothly. The medicine compartment 2214 at the bottom of the main compartment 221 is used to hold insecticide. The insecticide is mixed with the food or food scraps of the insects before being put into the medicine compartment 2214 to further kill the captured insects.

[0042] The connection between the main compartment 221 and the main board 21 consists of two parts. One part is the insertion and engagement of the dovetail groove 212 and the dovetail block 223. This part can limit the main compartment 221 laterally and longitudinally to prevent the main compartment 221 from moving up and down or left and right during operation. The other part is the magnetic connection between the second magnetic piece 2212 and the first magnetic piece of the main compartment 221. The magnetic connection can ensure that the main compartment 221 will not move in the front and back directions. The two parts of insertion and magnetic connection can ensure the stability of the main compartment 221 during operation.

[0043] The main body 21 has a height of 55-60cm and a thickness of 12-14cm. The insect trap 22 has a thickness of 4-6cm and a height of 30-35cm. To facilitate the removal of the insect trap 22 from the main body 21, the height of the insect trap 22 after installation should be 2-3cm higher than the height of the main body 21. A 2cm working gap is left between the two insect traps 22 to allow the operator to insert their fingers into the gap between the two insect traps 22 and push the insect trap 22 out of the main body 21.

[0044] The upper cover 222 is an important component of the insect trapping chamber 22. It consists of two parts. After insects enter the main cover body 2221 through the insect inlet 2223, they enter the main chamber body 221 through the insect outlet 2225. The insect inlet 2223 and the insect outlet 2225 in the main cover body 2221 are set at a 90° angle, which effectively prevents insects from crawling out of the main chamber body 221. In order to further prevent insects from crawling out, a one-way swing plate 2224 is also installed at the insect inlet 2223. The height of the one-way swing plate 2224 is greater than the top of the insect inlet 2223, and it is tilted inward when arranged. Figure 10 As shown, the rotation axis of the one-way swing plate 2224 is smooth and has low resistance. Insects can push it open from the outside and enter the top cover 222, but cannot push it open from the inside to escape from the top cover. The top cover 2222 is provided with a cover plate 2222 to facilitate the installation of the one-way swing plate 2224 by the staff and to lubricate its hinge.

[0045] The insect inlet 2223 is processed on the lower part of the front side of the cover 222, so that the upper part of the front side of the cover 222 can be preserved. Some fluorescent strips or other warning strips can be attached to this area to remind pedestrians that there is an obstacle here and to slow down when passing through.

[0046] When setting up the rodent barrier 2, it should be placed as close as possible to the wall where the doorway 1 is located, while ensuring that the rodent barrier 2 can open and close smoothly. The gap between the two should not be greater than 1cm. This can ensure the reliability of the rodent barrier.

[0047] Specific implementation method three: Combining Figure 11 This embodiment differs from specific embodiment two in that the drive assembly 3 includes a forward and reverse motor 31, which is fixed to the inner bottom of the pre-embedded frame 4. A coupling 32 is mounted on the power output shaft of the forward and reverse motor 31 and connected to a double-rotating lead screw 33 through the coupling 32. The double-rotating lead screw 33 is mounted on the inner bottom of the pre-embedded frame 4 through multiple support brackets 34. A slider assembly is provided on the forward and reverse thread sections of the double-rotating lead screw 33, and each slider assembly is sleeved on the double-rotating lead screw 33 and threadedly connected to the thread section thereon. The top of each slider assembly extends out of the top of the pre-embedded frame 4 and is inserted into the bottom slot 214 of a main board body 21.

[0048] The drive assembly 3 also includes a battery 38, which powers the forward and reverse motor 31. The slider assembly includes a screw sleeve 35, which is fitted onto the double-rotating lead screw 33. A mounting block 36 is detachably connected to the top of the screw sleeve 35, and the top of the mounting block 36 is inserted into a bottom slot 214 of a main board 21. Other components and connections are the same as in specific embodiment two.

[0049] This embodiment provides a driving structure for a rodent-blocking plate 2. The driving structure uses a reversible motor 31 as the power source, and a double-rotating lead screw 33 and a slider assembly as transmission components. When the double-rotating lead screw 33 rotates, the two slider assemblies move in different directions on their two threaded sections, thus driving the two rodent-blocking plates 2 to open and close. When the reversible motor 31 drives the double-rotating lead screw 33 to rotate forward, the two rodent-blocking plates 2 move towards each other, resulting in a closed action, thus blocking and preventing rodents. When the double-rotating lead screw 33 rotates in reverse, the two rodent-blocking plates 2 move away from each other, resulting in an open action, thus allowing personnel to pass through. To improve efficiency... To improve the connection stability between the insert block 36 and the motherboard body 21, in this embodiment, a set of through holes 215 are machined on both sides of the slot 214, and the two sets of through holes 215 are arranged opposite to each other. Each set of through holes 215 includes two through holes 215, and each through hole 215 is connected to the adjacent side wall of the motherboard body 21. At the same time, a corresponding connection hole is also machined on the top side wall of the insert block 36. In this way, after the insert block 36 is inserted into the slot 214, the insert block 36 and the motherboard body 21 can be connected by the bolt and nut assembly, which helps to improve the connection stability between the insert block 36 and the motherboard body 21.

[0050] Specific implementation method four: Combination Figure 12 and Figure 13 This embodiment differs from Specific Embodiment Three in that the embedded frame 4 includes an embedded groove 41, which is embedded in the ground 6. The top of the embedded groove 41 is open, and a top plate 42 is installed at the opening. Two guide grooves 421 are machined on the top of the top plate 42, and the two guide grooves 421 are symmetrically arranged along the center line of the length direction of the top plate 42. A corresponding guide groove 421 extends from the top of the insert block 36 and is inserted into the bottom slot 214 of a main board 21. Other components and connection methods are the same as in Specific Embodiment Three.

[0051] In this embodiment, the pre-embedded frame 4 is used to protect the drive component 3. The guide groove 421 on its top is the movement path of the insert block 36, ensuring that it can move laterally stably. Considering that the insert block 36 alone can easily cause the main board body 21 to tilt due to uneven weight, a pulley structure can be embedded in or placed on the bottom of the main board body 21. The pulley structure provides auxiliary support for the main board body 21. The pulley structure contacts the top plate 42, which also helps to improve the smoothness of the opening and closing of the mouse guard plate 2.

[0052] Specific Implementation Method Five: Combining Figure 14 and Figure 15This embodiment differs from Specific Embodiment Three in that, in this embodiment, a limit contact 37 is installed on each of the left and right sides of one of the two insert blocks 36, and a limit switch 43 corresponding to the limit contact 37 is installed at each end of the guide groove 421 where the insert block 36 is located. Other components and connections are the same as in Specific Embodiment Four.

[0053] In this embodiment, by setting limit contact 37 and limit switch 43, the situation where the insert block 36 moves to the limit position can be detected and warned, so that the forward and reverse motor 31 stops working or reverses working, avoiding motion interference.

[0054] The present invention has been disclosed above with reference to preferred embodiments, but it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed structure and technical content to create equivalent embodiments without departing from the scope of the present invention. However, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

[0055] Working principle

[0056] When using the rodent barrier mechanism with insect-catching function provided in this application, the various components are first assembled according to the connection relationship described in specific embodiments one to five. When the staff enters or exits, they will pass through the working area of ​​the induction switch 5. At this time, the forward and reverse motor 31 will respond synchronously and drive the double-rotor screw 33 to rotate forward, so that the two rodent barriers 2 are separated, providing a passage for the staff. After the staff passes through the working area of ​​the induction switch 5, the forward and reverse motor 31 will drive the double-rotor screw 33 to rotate in reverse, so that the two rodent barriers 2 are closed, forming a rodent-blocking state.

[0057] The insect-attracting pad 2213 inside the insect trap 22 of the rodent barrier 2 emits an attractive scent, which attracts arthropods near the rodent barrier 2. Under the influence of the scent, the insects crawl onto the insect trap 22 and enter the cover through the insect inlet 2223 in the cover 222. They then enter the main chamber 221 through the insect outlet 2225. The insects in the main chamber 221 are unable to crawl out of the insect trap 22 due to the limited positions of the insect inlet 2223 and the insect outlet 2225, as well as the obstruction of the one-way swing plate 2224, thus achieving the purpose of capture. The capture cycle is generally one day. The insect trap 22 is dismantled and cleaned by staff every day, and new insect attractants and insecticides are added. If it is summer or a large number of insects are found in the trap, the capture cycle can be shortened, and the trap can be cleaned every half day or 6 hours.

Claims

1. A rodent barrier mechanism with insect-catching function, the rodent barrier mechanism is arranged on the outside of the door (1), the rodent barrier mechanism includes a drive component (3), a pre-embedded frame (4), two rodent barriers (2) and two sensor switches (5), the pre-embedded frame (4) is buried in the ground (6), the drive component (3) is installed in the pre-embedded frame (4), and the drive end of the drive component (3) extends out of the top of the pre-embedded frame (4) and drives the two rodent barriers (2) to perform splicing action, the two sensor switches (5) are respectively installed on the ceiling (7) on the inside and outside of the door (1), and both sensor switches (5) are signal connected to the drive component (3); Its features are: The rodent barrier (2) includes a main body (21), and N insect traps (22) are installed on the front and rear sides of the main body (21), where N is a positive integer. The N insect traps (22) are arranged sequentially along the length of the main body (21), and each insect trap (22) contains an insect attractant.

2. The rodent-proof barrier mechanism with insect-trapping function according to claim 1, characterized in that: A mounting slot (211) is machined on the front and rear sides of the main body (21). N insect traps (22) on each side of the main body (21) are installed in the mounting slot (211). N dovetail grooves (212) are machined at equal intervals along the length extension direction of the main body (21) at the bottom of the mounting slot (211).

3. The rodent-proof barrier mechanism with insect-trapping function according to claim 1, characterized in that: The back of the mounting slot (211) is provided with N blind slots (213) that are equidistantly machined along the length of the main body (21). Each blind slot (213) has a No. 1 magnetic sheet embedded in its bottom.

4. The rodent-proof barrier mechanism with insect-trapping function according to claim 1, characterized in that: A rubber pad (216) is attached to the splicing side of the motherboard body (21). A longitudinally extending slot (214) is machined on the bottom of the motherboard body (21) near the rubber pad (216). The motherboard body (21) is installed on the drive end of the drive assembly (3) through the slot (214).

5. A rodent-proof barrier mechanism with insect-trapping function according to claim 4, characterized in that: The insect trap (22) includes a main chamber (221). The top of the main chamber (221) is open. A cover (222) is installed at the opening of the main chamber (221). The bottom of the main chamber (221) is closed. A dovetail block (223) that cooperates with the dovetail groove (212) is fixed to the closed part of the main chamber (221). Several ventilation holes (2211) are evenly distributed on the front side of the main chamber (221). The insect attractant is placed in the main chamber (221) and the odor is transmitted to the outside of the chamber through several ventilation holes (2211).

6. A rodent-proof barrier mechanism with insect-trapping function according to claim 5, characterized in that: The back side of the main chamber (221) is fixed with a second magnetic sheet (2212) that corresponds to and matches the first magnetic sheet. The back side of the main chamber (221) is attached with an insect-attracting pad (2213) and an insect attractant is applied to the insect-attracting pad (2213).

7. A rodent-proof barrier mechanism with insect-trapping function according to claim 6, characterized in that: The bottom of the main compartment (221) is equipped with a medicine compartment (2214), which contains insecticide.

8. A rodent-proof barrier mechanism with insect-trapping function according to claim 7, characterized in that: The top cover (222) includes a main cover body (2221). The top of the main cover body (2221) is open. A cover plate (2222) is installed at the opening of the main cover body (2221). An insect inlet (2223) is processed on the lower front side of the main cover body (2221). An insect outlet (2225) is processed on the bottom of the main cover body (2221). The main cover body (2221) is connected to the main chamber body (221) through the insect outlet (2225). A one-way swing plate (2224) is installed inside the main cover body (2221). The one-way swing plate (2224) is correspondingly set with the insect inlet (2223).

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