Agricultural detection device

Abstract

The utility model discloses an agricultural detection device which comprises a device shell, a capture detection mechanism is arranged on the device shell, and an auxiliary mechanism is arranged on the capture detection mechanism. According to the agricultural detection device provided by the utility model, pests near the device are attracted by controlling the insect trapping lamp to be started, the pests fly into the insect attracting frame after being attracted, and the pests fly into the device shell through the blocking and slowing net to be blocked and slowed down, so that the high-frequency camera can conveniently carry out image acquisition on the pests; and then the information of the acquired image is analyzed through the analysis controller. Insect types and quantity data are preliminarily obtained, then pests fly into the device shell through the blocking and buffering net, the pests are stuck and caught after making contact with the pest sticking net block, the pests are stuck and caught through the pest sticking net block, the integrity of pest corpses can be effectively preserved, and the complete corpses are beneficial to accurately recognizing the pest types and quantity; and scientificity and reliability of data are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural pest detection, in particular to an agricultural detection device. Background Art

[0002] Agricultural pest detection is crucial because it enables timely detection and identification of pests, thereby protecting crop health and increasing agricultural yields. Through early detection, farmers can minimize pest impacts on crops, rationalize pesticide use, and reduce production costs. Furthermore, scientific pest management helps maintain ecological balance, protect beneficial insects, and ultimately increase farmer incomes and promote sustainable development. Therefore, agricultural pest detection not only impacts crop health and yields but also has a profound impact on economic development and the ecological environment.

[0003] For example, a Chinese utility model patent (CN221179023U) discloses an agricultural detection device for detecting pests and diseases, which states: "By using the cooperation between the provided protruding plate and the moving mechanism, the device can be easily moved to the farmland and supported, so that the pests in the farmland can be killed and collected using insect-killing lamps that attract pests, and when large agricultural machinery is needed to work on the farmland, the entire device can be easily moved away, thereby improving the convenience of early installation and later movement of the device." It also states: "However, the above-mentioned device relies on supporting legs to support the entire device. During the initial installation of the entire device, it is not convenient to move the device to a suitable position and fix it. Moreover, when large agricultural machinery is needed to work on the farmland later, it is not convenient to move the device away from the farmland." Technical problems.

[0004] To sum up the above, it can be seen that the existing technology uses insect-luring and insect-killing lamps to lure and kill pests. However, this method has the following technical problems: However, general insect-luring and insect-killing lamps use electric grids to kill pests. During this process, the insect body may be instantly crushed or ruptured by the high-voltage current, and then when the pest type is subsequently identified based on the incomplete pest corpse, it is easy to cause misjudgment of the pests, and the accuracy of agricultural pest detection is low. For this reason, this application proposes an agricultural detection device to provide a new technical solution to solve the technical problems mentioned in the above patents. Utility Model Content

[0005] Based on this, it is necessary to address the above technical issues and provide an agricultural detection device. By controlling the activation of an insect trap light, pests near the device are attracted and flown into the insect attraction frame. A retarding net then retardes the insects from flying into the device housing, allowing a high-frequency camera to capture images of the pests. An analysis controller then analyzes the captured image information. Preliminary data on the type and number of pests is obtained. Pests then fly into the device housing through the retarding net and, upon contact with the sticky insect net, are caught. This trapping of the pests by the sticky insect net effectively preserves the integrity of the insect carcasses, which helps accurately identify the pest species and number, ensuring the scientific and reliable nature of the data. Furthermore, the image data provided by the high-frequency camera can help identify the pest species and number, while the actual samples provided by the sticky insect net can verify and supplement this information, improving the accuracy of monitoring.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] An agricultural detection device is used for detecting plant diseases and insect pests in farmland.

[0008] The agricultural detection device specifically includes:

[0009] a device housing, a capture detection mechanism disposed on the device housing, an auxiliary mechanism disposed on the capture detection mechanism, a solar panel fixedly mounted on the top of the device housing, a charge controller fixedly mounted on the top of the device housing, a power supply fixedly mounted on the top of the device housing, the charge controller being electrically connected to the solar panel, and the charge controller being electrically connected to the power supply;

[0010] The capture and detection mechanism includes a receiving plate, an insect attractant lamp, a fixing rod, a detection component, and a capture component. The outer wall of the device housing is fixedly connected to multiple fixing rods, and the outer wall of the fixing rod is slidably connected to the receiving plate. The insect attractant lamp is fixedly installed on the upper surface of the inner wall of the device housing, and the insect attractant lamp is electrically connected to the charging controller.

[0011] As a preferred embodiment of the agricultural detection device provided by the present invention, the detection component includes an insect attracting frame, a plurality of insect attracting frames are fixedly connected to the inner wall of the device shell, the inner walls of the plurality of insect attracting frames are respectively fixedly connected to a blocking net, the outer walls of the plurality of insect attracting frames are respectively fixedly installed with analysis controllers, the inner walls of the plurality of insect attracting frames are respectively fixedly installed with high-frequency cameras, the analysis controller is electrically connected to the charging controller, and the analysis controller is electrically connected to the high-frequency camera.

[0012] As a preferred embodiment of the agricultural detection device provided by the present utility model, the capturing component includes a sticky insect net block. A plurality of sticky insect net blocks are inserted into the top of the receiving plate. L-shaped inserts are respectively inserted into the inner walls of the sticky insect net blocks near both sides. The two L-shaped inserts are respectively slidably connected to the inner wall of the receiving plate. A push plate is slidably connected to the inner wall of the receiving plate. One side of each of the two L-shaped inserts close to the device housing is fixedly connected to the outer wall of the push plate. One side of each of the two L-shaped inserts away from the push plate is respectively fixedly connected to a first spring. One end of each of the two first springs away from the L-shaped insert is fixedly connected to the inner wall of the receiving plate.

[0013] As a preferred embodiment of the agricultural detection device provided by the present utility model, the auxiliary mechanism includes a rotating rod, a first partition plate, a rotating component, and a limiting component. A rotating rod is rotatably connected to the inner wall of the receiving plate. A first partition plate is fixedly connected to the outer wall of the rotating rod.

[0014] As a preferred embodiment of the agricultural detection device provided by the present utility model, the rotating component includes a torsion spring. A torsion spring is sleeved on the outside of the rotating rod. The two ends of the torsion spring are respectively fixedly connected to the inner wall of the receiving plate and the outer wall of the first partition plate. A second partition plate is fixedly connected to the outer wall of the rotating rod.

[0015] As a preferred embodiment of the agricultural detection device provided by the present utility model, the limiting component includes a pull rope. Pull ropes are respectively fixedly connected to the outer wall of the rotating rod on the upper and lower sides of the second partition plate. One end of each of the two pull ropes away from the rotating rod is fixedly connected to a fixed insertion rod. A sliding ring is fixedly connected to the outer wall of the fixed insertion rod. The sliding ring is slidably connected to the inner wall of the receiving plate. A second spring is sleeved on the outside of the fixed insertion rod. The two ends of the second spring are respectively fixedly connected to the outer wall of the sliding ring and the inner wall of the receiving plate. Limiting plates are respectively fixedly connected to the bottom of the device housing on both sides. The fixed insertion rod is inserted into the limiting plate.

[0016] Compared with the prior art, the present utility model has the following beneficial effects:

[0017] The agricultural detection device provided by the utility model attracts pests near the device by controlling the starting of the insect attracting lamp. The pests fly into the insect attracting frame after being attracted. The retardation net retards the pests from flying into the device housing, so that a high-frequency camera can collect images of the pests. Subsequently, the analysis controller analyzes the information of the collected images, initially obtaining data on the types and quantities of pests. Then, the pests fly into the device housing through the retardation net. After the pests come into contact with the pest sticking net block, they are stuck and captured. The pest sticking net block can effectively preserve the integrity of the pest corpses. The complete corpses are helpful for accurately identifying the types and quantities of pests, ensuring the scientificity and reliability of the data. Moreover, the image data provided by the high-frequency camera can help identify the types and quantities of pests, while the actual samples provided by the pest sticking net block can verify and supplement this information, improving the accuracy of monitoring.

[0018] For the agricultural detection device provided by the utility model, by rotating the rotating rod, two pull ropes can be wound around the rotating rod, and then the corresponding fixed insertion rods are pulled to slide into the inside of the receiving plate, further causing the fixed insertion rods to leave the limiting plate. Subsequently, the limitation on the position of the receiving plate is released, and then the receiving plate can slide downward. After the receiving plate slides to a height convenient for replacing the pest sticking net block, the rotating rod is released. Then, under the action of the torsion spring force, the rotating rod reverses, and the fixed insertion rod is inserted into the corresponding jack on the limiting plate at this time, thereby fixing the position of the receiving plate. Subsequently, by pushing the push plate, the L-shaped insertion block is made to leave the pest sticking net block, and then the pest sticking net block is pulled out. Then, a new pest sticking net block is inserted into the receiving plate, and then the push plate is released to fix the new pest sticking net block. This process is relatively simple, improving the replacement efficiency of the pest sticking net block. And by timely replacing the pest sticking net block, the capturing ability of the pest sticking net block for pests can be ensured. Moreover, the replaced pest sticking net block is preserved to verify and supplement the image data provided by the high-frequency camera, which can help identify the types and quantities of pests, ensuring the accuracy of pest detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the solutions in the present utility model, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic diagram of the overall structure of the agricultural detection device provided by the present utility model;

[0021] Figure 2 It is a schematic diagram of the internal structure of the device housing of the agricultural detection device provided by the present utility model;

[0022] Figure 3 Partial structural schematic diagram of the agricultural detection device provided by the present utility model;

[0023] Figure 4 Internal structural schematic diagram of the receiving plate of the agricultural detection device provided by the present utility model;

[0024] Figure 5 Exploded structural schematic diagram of the capture component of the agricultural detection device provided by the present utility model;

[0025] Figure 6 Enlarged structural schematic diagram of a part of the auxiliary mechanism of the agricultural detection device provided by the present utility model;

[0026] Figure 7 For the agricultural detection device provided by the present utility model Figure 6 Enlarged view of A in

[0027] The markings in the figure are explained as follows: <00000Z7>1. Device housing; 2. Capture and detection mechanism; 3. Auxiliary mechanism; 4. Solar panel; 5. Charge controller; 6. Power supply; 7. Receiving plate; 8. Insect attracting lamp; 9. Insect guiding frame; 10. Analysis controller; 11. High-frequency camera; 12. Retarding net; 13. Fixed rod; 14. Insect sticking net block; 15. L-shaped insertion block; 16. Push plate; 17. First spring; 18. Rotating rod; 19. First partition; 20. Torsion spring; 21. Second partition; 22. Pulling rope; 23. Fixed insertion rod; 24. Sliding ring; 25. Second spring; 26. Limiting plate. Specific implementation manners

[0029] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0030] As described in the background art, generally, an insecticidal lamp that can attract pests kills the pests by using an electric grid. In this process, the insect body may be instantly shattered or cracked by the high-voltage current. Therefore, when identifying the types of pests based on the incomplete pest corpses in the subsequent process, it is easy to cause misjudgment of insect pests, and the accuracy of agricultural pest detection is relatively low.

[0031] To solve this technical problem, the present utility model provides an agricultural detection device, which is applied to the detection of farmland pests and diseases.

[0032] Specifically, please refer to Figure 1-Figure 2 , the agricultural detection device specifically includes:

[0033] Device housing 1, device housing 1 is provided with a capture detection mechanism 2, capture detection mechanism 2 is provided with an auxiliary mechanism 3, a solar panel 4 is fixedly mounted on the top of the device housing 1, a charge controller 5 is fixedly mounted on the top of the device housing 1, and a power supply 6 is fixedly mounted on the top of the device housing 1, the charge controller 5 is electrically connected to the solar panel 4, and the charge controller 5 is electrically connected to the power supply 6;

[0034] The capture and detection mechanism 2 includes a receiving plate 7, an insect trap light 8, a fixing rod 13, a detection component, and a capture component. The outer wall of the device housing 1 is fixedly connected to multiple fixing rods 13, and the outer wall of the fixing rod 13 is slidably connected to the receiving plate 7. The insect trap light 8 is fixedly installed on the upper surface of the inner wall of the device housing 1, and the insect trap light 8 is electrically connected to the charging controller 5.

[0035] The agricultural detection device provided by the present utility model controls the activation of an insect trap lamp 8 to attract pests near the device. The attracted pests fly into the insect attracting frame 9, and then pass through a retarding net 12 to retard the pests from flying into the device housing 1, so that a high-frequency camera 11 can capture images of the pests. The captured images are then analyzed by an analysis controller 10. Preliminary data on the species and quantity of the pests is obtained. The pests then fly into the device housing 1 through the retarding net 12 and are caught by the sticky insect net block 14 after contacting it. The sticky insect net block 14 effectively preserves the integrity of the pest carcass, which helps accurately identify the pest species and quantity, ensuring the scientificity and reliability of the data. The image data provided by the high-frequency camera 11 can help identify the pest species and quantity, while the actual samples provided by the sticky insect net block 14 can verify and supplement this information, improving the accuracy of monitoring.

[0036] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0037] Example 1:

[0038] Please refer to Figure 2-Figure 5 , an agricultural detection device, comprising:

[0039] The detection component includes an insect attracting frame 9. A plurality of insect attracting frames 9 are fixedly connected to the inner wall of the device housing 1. The inner walls of the plurality of insect attracting frames 9 are respectively fixedly connected with retardation nets 12. Analysis controllers 10 are respectively fixedly installed on the outer walls of the plurality of insect attracting frames 9. After analyzing the images collected by the high-frequency cameras 11, the analysis controllers 10 obtain the data on the types and quantities of pests, which can be communicated and transmitted to the computer for the operator to view. High-frequency cameras 11 are respectively fixedly installed on the inner walls of the plurality of insect attracting frames 9. The analysis controller 10 is electrically connected to the charging controller 5, and the analysis controller 10 is electrically connected to the high-frequency camera 11. The retardation net 12 allows pests to enter the device housing 1, but when there are a large number of pests, the retardation net 12 can prevent a large number of pests from entering the device housing 1 simultaneously, and can retard the entry of pests into the device housing 1 to facilitate the high-frequency camera 11 to photograph the pests.

[0040] The capture component includes sticky insect net blocks 14. A plurality of sticky insect net blocks 14 are inserted into the top of the receiving plate 7. The grid areas on the sticky insect net blocks 14 are covered with glue for sticking pests, and the glue is the same as the glue on the traditional capture sticky board. L-shaped inserts 15 are respectively inserted into the inner walls of the sticky insect net blocks 14 near both sides. The two L-shaped inserts 15 are respectively slidably connected to the inner wall of the receiving plate 7. A push plate 16 is slidably connected to the inner wall of the receiving plate 7. One side of the two L-shaped inserts 15 close to the device housing 1 is fixedly connected to the outer wall of the push plate 16. One side of the two L-shaped inserts 15 away from the push plate 16 is respectively fixedly connected with a first spring 17. One end of the two first springs 17 away from the L-shaped inserts 15 is fixedly connected to the inner wall of the receiving plate 7. The bottom of the sticky insect net block 14 is inserted into the receiving plate 7 for preliminary fixation, and then the L-shaped inserts 15 are inserted into the sticky insect net block 14 for further fixation of the sticky insect net block 14, avoiding the situation that the sticky insect net block 14 is toppled by the wind blowing into the device or the sticky insect net block 14 is toppled due to the impact of pests, and improving the stability of the device.

[0041] Through the above structural design, the insect attracting lamp 8 is controlled to start to attract pests near the device. The pests fly into the insect attracting frame 9 after being attracted. The slow-down net 12 slows down the pests from flying into the device housing 1. The high-frequency camera 11 collects images of the pests. Subsequently, the analysis controller 10 analyzes the information of the collected images, and preliminarily obtains the data of the types and quantities of the pests. Subsequently, the pests fly into the device housing 1 through the slow-down net 12. After the pests come into contact with the insect sticking net block 14, they are stuck and captured. After a certain period of time, the insect sticking net block 14 can be disassembled. By pressing the push plate 16, the corresponding two L-shaped insertion blocks 15 can be driven to slide inside the bearing plate 7, so that the corresponding first spring 17 is deformed accordingly. Subsequently, the insect sticking net block 14 can be pulled out from the bearing plate 7. Then, a new insect sticking net block 14 is reinserted into the bearing plate 7. After that, the push plate 16 is released. Under the action of the elastic forces of the corresponding two first springs 17, the L-shaped insertion blocks 15 are driven to insert into the new insect sticking net block 14, and thus the replacement of the insect sticking net block 14 is completed. Subsequently, the disassembled insect sticking net block 14 can be identified and recorded to verify the data of the types and quantities of the pests obtained from the images captured by the high-frequency camera 11.

[0042] Embodiment 2:

[0043] The agricultural detection device provided in Embodiment 1 is further optimized. Specifically, as Figure 6-Figure 7 shown, the auxiliary mechanism 3 includes a rotating rod 18, a first partition 19, a rotating component, and a limiting component. The inner wall of the bearing plate 7 is rotatably connected to a rotating rod 18. The outer wall of the rotating rod 18 is fixedly connected to a first partition 19. The first partition 19 can separate the torsion spring 20 and the pulling rope 22, avoiding the situation of entanglement between the two, and improving the stability of the device.

[0044] The rotating component includes a torsion spring 20. The torsion spring 20 is sleeved outside the rotating rod 18. The two ends of the torsion spring 20 are respectively fixedly connected to the inner wall of the bearing plate 7 and the outer wall of the first partition 19. The outer wall of the rotating rod 18 is fixedly connected to a second partition 21. The second partition 21 can separate the two pulling ropes 22, avoiding the situation of mutual entanglement between the two pulling ropes 22.

[0045] The limiting assembly includes a pull rope 22, and the outer wall of the rotating rod 18 and the upper and lower sides of the second partition plate 21 are respectively fixedly connected to the pull rope 22, and the two pull ropes 22 are fixedly connected to the fixed plug rod 23 at one end away from the rotating rod 18. The outer wall of the fixed plug rod 23 is fixedly connected to the sliding ring 24, and the sliding ring 24 is slidably connected to the inner wall of the receiving plate 7. The outer wall of the fixed plug rod 23 is sleeved with a second spring 25, and the two ends of the second spring 25 are respectively fixedly connected to the outer wall of the sliding ring 24 and the inner wall of the receiving plate 7. The bottom of the device shell 1 and the two sides are respectively fixedly connected to the limiting plate 26. A plurality of insertion holes for the fixed plug rod 23 are opened on the limiting plate 26 for inserting. The fixed plug rod 23 is inserted into the limiting plate 26, and the height of the receiving plate 7 can be adjusted by adjusting the position of the fixed plug rod 23 inserted into the limiting plate 26, thereby facilitating the cleaning of the upper surface of the receiving plate 7 and replacing the insect net block 14, thereby improving the convenience of device operation.

[0046] By the above structural design, by rotating the rotating rod 18, the torsion spring 20 is deformed, and at the same time, the two pull ropes 22 are wound around the rotating rod 18, thereby pulling the corresponding fixed plug rod 23 to slide toward the inside of the receiving plate 7, and at the same time, the second spring 25 is deformed, so that the fixed plug rod 23 leaves the limiting plate 26, releasing the restriction on the position of the receiving plate 7, and then the receiving plate 7 can slide downward. After the receiving plate 7 slides to a height that is convenient for replacing the insect net block 14, the rotating rod 18 is released, and the torsion spring 20 can be elastically released. Under the action of the force, the rotating rod 18 is reversed, so that the pull rope 22 is no longer wrapped around the rotating rod 18, and under the action of the elastic force of the second spring 25, the fixed plug rod 23 is inserted into the corresponding insertion hole on the limiting plate 26 at this time, thereby fixing the position of the receiving plate 7, and then the insect net block 14 can be replaced. After the insect net block 14 is replaced, the rotating rod 18 can be rotated to drive the two fixed plug rods 23 to retract into the receiving plate 7, and push the receiving plate 7 upward, so that the receiving plate 7 moves to a suitable position in the device housing 1. Then, the rotating rod 18 is loosened, so that the fixed plug rod 23 is inserted into the corresponding insertion hole on the limiting plate 26 at this time.

Claims

1. An agricultural detection device, comprising a device housing (1), characterized in that: A capture and detection mechanism (2) is provided on the device housing (1), an auxiliary mechanism (3) is provided on the capture and detection mechanism (2), a solar panel (4) is fixedly installed on the top of the device housing (1), a charging controller (5) is fixedly installed on the top of the device housing (1), a power supply (6) is fixedly installed on the top of the device housing (1), the charging controller (5) is electrically connected to the solar panel (4), and the charging controller (5) is electrically connected to the power supply (6); The capture and detection mechanism (2) includes a receiving plate (7), an insect attracting lamp (8), a fixing rod (13), a detection component, and a capture component. A plurality of fixing rods (13) are fixedly connected to the outer wall of the device housing (1), the outer wall of the fixing rod (13) is slidably connected to the receiving plate (7), an insect attracting lamp (8) is fixedly installed on the upper surface of the inner wall of the device housing (1), and the insect attracting lamp (8) is electrically connected to the charging controller (5).

2. The agricultural detection device according to claim 1, characterized in that: The detection component includes an insect guiding frame (9). A plurality of insect guiding frames (9) are fixedly connected to the inner wall of the device housing (1). Retarding nets (12) are respectively fixedly connected to the inner walls of the plurality of insect guiding frames (9). Analysis controllers (10) are respectively fixedly installed on the outer walls of the plurality of insect guiding frames (9). High-frequency cameras (11) are respectively fixedly installed on the inner walls of the plurality of insect guiding frames (9). The analysis controller (10) is electrically connected to the charging controller (5), and the analysis controller (10) is electrically connected to the high-frequency camera (11).

3. The agricultural detection device according to claim 1, characterized in that: The capture component includes sticky insect net blocks (14). A plurality of sticky insect net blocks (14) are inserted into the top of the receiving plate (7). L-shaped inserts (15) are inserted into the inner wall of the sticky insect net block (14) near both sides. The two L-shaped inserts (15) are respectively slidably connected to the inner wall of the receiving plate (7). A push plate (16) is slidably connected to the inner wall of the receiving plate (7). One side of the two L-shaped inserts (15) close to the device housing (1) is fixedly connected to the outer wall of the push plate (16). One side of the two L-shaped inserts (15) far from the push plate (16) is respectively fixedly connected to a first spring (17). One end of the two first springs (17) far from the L-shaped inserts (15) is fixedly connected to the inner wall of the receiving plate (7).

4. The agricultural detection device according to claim 1, characterized in that: The auxiliary mechanism (3) includes a rotating rod (18), a first partition plate (19), a rotating component, and a limiting component. The rotating rod (18) is rotatably connected to the inner wall of the receiving plate (7), and the outer wall of the rotating rod (18) is fixedly connected to the first partition plate (19).

5. The agricultural detection device according to claim 4, characterized in that: The rotating component includes a torsion spring (20). The torsion spring (20) is sleeved on the outer part of the rotating rod (18). The two ends of the torsion spring (20) are respectively fixedly connected to the inner wall of the receiving plate (7) and the outer wall of the first partition plate (19). The outer wall of the rotating rod (18) is fixedly connected to a second partition plate (21).

6. The agricultural detection device according to claim 5, characterized in that: The limiting component includes a pull rope (22), the outer wall of the rotating rod (18) and the upper and lower sides of the second partition (21) are respectively fixedly connected with the pull rope (22), and the ends of the two pull ropes (22) away from the rotating rod (18) are fixedly connected with a fixed plug rod (23), the outer wall of the fixed plug rod (23) is fixedly connected with a sliding ring (24), and the sliding ring (24) is slidably connected to the inner wall of the receiving plate (7), and the outer wall of the fixed plug rod (23) is sleeved with a second spring (25), and the two ends of the second spring (25) are respectively fixedly connected to the outer wall of the sliding ring (24) and the inner wall of the receiving plate (7), and the bottom of the device housing (1) and the two sides are respectively fixedly connected with limiting plates (26), and the fixed plug rod (23) is inserted into the limiting plate (26).

Images