Ampullaria gigas trapping and collecting device

Abstract

The invention relates to the technical field of prevention and control of alien invasive species ampullaria gigas, in particular to an ampullaria gigas trapping and collecting device which comprises a collecting barrel used for being placed in water, and the top of the collecting barrel is movably connected with a barrel cover; a vertical telescopic rod is fixedly connected into the collecting barrel and comprises a lower rod and an upper rod, the lower rod is provided with a vertical rod cavity, and the upper rod is vertically connected into the rod cavity in a sliding mode; the telescopic rod penetrates through the can cover, and the can cover is provided with a notch for the telescopic rod to penetrate through. By means of the scheme, fixed-point, efficient and clean trapping and collecting of the ampullaria gigas are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of prevention and control of the alien invasive species, and particularly relates to a device for trapping and collecting apple snails. BACKGROUND

[0002] The apple snail is an amphibious freshwater mollusk of the Gastropoda, Mesogastropoda, Ampullariidae and Ampullariidae. The apple snail is originally from the Amazon River Basin in South America. In 1981, the apple snail was introduced into China as an edible economic animal. However, the apple snail is a worldwide malignant alien invasive species, has a large amount of eggs and strong reproductive capacity, and is an intermediate host of the Angiostrongylus cantonensis. In recent years, the apple snail has spread and proliferated in some southern regions of China, has caused disasters in some regions, and has a risk of spreading and proliferating to the north, thereby seriously threatening agricultural production, aquatic ecosystems and public health in China. At present, the physical control method is one of important means for controlling the population of the apple snail, and mainly includes manual picking, setting of an egg-laying carrier (such as a bamboo pole) and the like.

[0003] However, the existing physical control technology has obvious limitations: the manual picking has low efficiency, and the patrol personnel need to frequently contact the apple snails that may carry parasites, thereby having a health risk; and the traditional fixed-type egg-laying carrier (such as a bamboo sheet or a wooden strip) still needs to be manually scraped and collected after the apple snails or snail eggs are trapped, and is time-consuming and laborious, and the apple snails and snail eggs are easy to scatter during the cleaning process, thereby causing secondary spread. SUMMARY

[0004] The present application aims to provide a device for trapping and collecting apple snails, so as to solve the problems of complicated trapping operation, large labor intensity, manual contact and inability to collect.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a device for trapping and collecting apple snails, comprising a collection barrel for being put into water, a barrel cover movably connected to the top of the collection barrel; a vertical telescopic rod fixedly connected to the inside of the collection barrel, the telescopic rod comprising a lower rod and an upper rod, the lower rod being provided with a vertical rod cavity, and the upper rod being vertically and slidably connected in the rod cavity; the telescopic rod penetrating through the barrel cover, and the barrel cover being provided with a gap for the telescopic rod to penetrate through.

[0006] The principle and advantages of the present scheme are: the notch in the present scheme makes the bucket cover not affect the telescopic rod to extend from the collecting bucket. When in use, the collecting bucket is placed in the water, the top of the collecting bucket is slightly higher than the water surface, the bucket cover is in the closed state, the telescopic rod is in the elongated state, and the top end of the upper rod of the telescopic rod is above the bucket cover. Studies have shown that the apple snail has the characteristics of climbing to the water surface to lay eggs and needing to be exposed to air to hatch normally, the apple snail in the water will climb up the side wall of the collecting bucket, the apple snail climbs onto the bucket cover, the apple snail continues to move along the bucket cover to the telescopic rod, and climbs up along the telescopic rod, a part of the apple snail lays eggs on the telescopic rod. When it is necessary to collect the apple snail, the bucket cover is opened, the telescopic rod is shortened, the upper rod slides down along the lower rod, the upper rod enters the rod cavity of the lower rod, and when the apple snail and snail eggs on the upper rod pass through the top end of the lower rod, the top end of the lower rod will scrape off the apple snail and snail eggs on the entire upper rod, and the scraped-off apple snail and snail eggs will fall into the collecting box for automatic collection. After the apple snail and snail eggs on the upper rod are scraped off and collected, the bucket cover is further closed on the top of the collecting bucket to prevent the apple snail in the collecting bucket from climbing out.

[0007] By adopting the above technical scheme, the following beneficial effects are achieved: 1. By shortening the telescopic rod, the apple snail and snail eggs on the upper rod can be automatically scraped off, and the scraped-off apple snail and snail eggs automatically fall into the collecting bucket for collection. The entire process does not require manual removal of the apple snail and snail eggs on the telescopic rod one by one, which is simple and convenient to operate, reduces labor intensity, and reduces the contact between the apple snail and snail eggs, effectively avoiding the health risk of direct contact with the intermediate host. After the apple snail and snail eggs are scraped off, they automatically fall into the collecting bucket for collection, and there is no situation of scattering of the apple snail and snail eggs, and there is no problem of secondary spread. At the same time, the entire process does not require additional collection, which is simple and convenient to operate.

[0008] 2. The collecting bucket is located in the water, and compared with the rod directly inserted into the water, the surface area of the collecting bucket is larger than that of the rod, and the bucket wall and the bucket cover of the collecting bucket provide more climbing area for the apple snail to climb onto the telescopic rod, which is conducive to more apple snails climbing up to the telescopic rod.

[0009] 3. The bucket cover not only covers the top of the collecting bucket to prevent the collected apple snail in the collecting bucket from climbing out of the collecting bucket, but also is the only way for the apple snail to climb to the telescopic rod.

[0010] 4. The present scheme is a physical and mechanical operation, and does not use chemical agents, which does not pollute the ecological environment of the water body.

[0011] Preferably, as an improvement, the top end of the lower rod is located in the collecting bucket; or when the bucket cover is closed, the top end of the lower rod is located above the bucket cover, and the distance between the top end of the lower rod and the bucket cover is ≤1-2 cm.

[0012] Thus, when the bucket cover is closed, the top end of the lower rod will not be located outside the bucket cover, or even if the top end of the lower rod is located outside the bucket cover, the distance between the top end of the lower rod and the bucket cover is ≤1-2cm, and the length of the lower rod above the bucket cover is short. Thus, the snails and snail eggs on the telescopic rod will not be attached to the lower rod, and will basically remain on the upper rod.

[0013] Preferably, as an improvement, the collection bucket is provided with a first driving mechanism for driving the telescopic rod to automatically extend and retract.

[0014] Thus, the telescopic rod is automatically extended and retracted by the first driving mechanism, so that the extension and retraction of the telescopic rod do not need to be manually operated, reducing the contact between the hand and the telescopic rod, and further reducing the health risk of direct contact with the intermediate host. At the same time, the telescopic rod automatically extends and retracts, improving the automation level of the device, and through the automatic shortening of the telescopic rod, the snails and snail eggs on the telescopic rod are automatically scraped off, making the operation more simple and convenient, and the efficiency is higher.

[0015] Preferably, as an improvement, the inside of the upper rod is provided with a chamber, the side wall of the upper rod is provided with a plurality of air holes, and the inside of the chamber is placed with a trapping agent.

[0016] Thus, the trapping agent is located inside the upper rod, and the trapping agent can emit a smell that attracts snails, and the smell is emitted outward through the air holes, thereby attracting snails to climb onto the upper rod and lay eggs on the upper rod. In addition, the arrangement of the air holes can make the surface of the upper rod rough, which is beneficial for snails to climb.

[0017] Preferably, as an improvement, the top end of the lower rod is provided with a guide slope, the thickness gradually decreases from the bottom to the top of the guide slope, the top end of the guide slope is a sharp end, one side of the guide slope is a fitting surface that fits with the side wall of the upper rod, and the other side of the guide slope is an inclined surface.

[0018] Thus, the upper rod moves downward, the snails and snail eggs on the upper rod move downward together, the snails and snail eggs on the upper rod move to the guide slope at the top end of the lower rod, and the sharp top end of the guide slope "shovels" the snails and snail eggs on the upper rod, thereby facilitating the detachment of the snails and snail eggs from the upper rod, and the snails and snail eggs detached from the upper rod fall downward along the inclined surface. The sharp end of the guide slope is thin, which shovels the snail eggs from the upper rod and makes them move downward along the inclined surface, which is beneficial for the whole egg mass to be laid.

[0019] Preferably, as an improvement, the top end of the lower rod is fixedly connected with a scraping wire, and the scraping wire surrounds the outside of the side wall of the upper rod.

[0020] Thus, the apple snail and snail eggs on the upper rod can also be scraped off by scraping, the apple snail and snail eggs on the upper rod move to the scraping position, the scraping scrapes off the apple snail and snail eggs on the upper rod, the scraping is thin, and the scraping does not cause great damage to the snail eggs when scraping the snail eggs off the upper rod, thereby facilitating the whole snail eggs to be scraped off in one piece.

[0021] In addition, the scraping has a small contact area with the snail eggs compared with the guide slope, and the snail eggs are not easy to adhere to the scraping.

[0022] Preferably, as an improvement, the scraping is an electric heating wire.

[0023] The newly laid snail eggs have certain adhesion, but the shell of the eggs will harden as the water evaporates. If the snail eggs are the eggs that have stayed in the air for a period of time, the snail egg block on the upper rod can be easily scraped off. However, when collecting the newly laid eggs, a small part of the snail eggs may still adhere to the upper rod and it is not easy to scrape off the whole egg block. In order to solve this problem, the inventor designs the scraping as an electric heating wire, and the electric heating wire is heated by being electrified. Thus, when the scraping scrapes off some newly laid egg blocks, the scraping heats the part of the snail eggs that adhere to the upper rod, the whole part of the egg block and the upper rod is hardened by heating, thereby enabling normal scraping, and the egg block is not easy to adhere to the telescopic rod.

[0024] Preferably, as an improvement, the number of the bucket covers is two, the two bucket covers are rotationally connected to the top of the collecting barrel respectively, the rotation ends of the two bucket covers are away from each other, the free ends of the two bucket covers are close to each other, the telescopic rod is located at the free ends of the two bucket covers, and the notch is located at the free end of the bucket cover; the collecting barrel is provided with a second driving mechanism for driving the bucket cover to automatically fold.

[0025] Thus, the second driving mechanism controls the automatic folding of the bucket cover, realizes the automatic opening and closing of the bucket cover, and does not need manual overturning of the bucket cover, thereby being simple and convenient to operate, and the device is more automatic. In the scheme, since the telescopic rod is located at the free end of the bucket cover and the notch is also located at the free end of the bucket cover, the telescopic rod does not affect the overturning of the bucket cover in the overturning process of the bucket cover, and the bucket rod can normally open and close. If the telescopic rod is arranged at other positions, the telescopic rod may affect the opening and closing of the bucket cover, and the bucket cover cannot be opened and closed in a rotational manner.

[0026] Preferably, as an improvement, the lower rod and the upper rod are square rods; the four side walls of the lower rod are each provided with a counting sensor; and when the bucket cover is closed, the top end of the lower rod is higher than the bucket cover, and the counting sensor is located above the bucket cover. The collecting barrel is provided with a controller, and the controller and the counting sensor are electrically connected.

[0027] Thus, the apple snails climb up the collecting barrel and reach the barrel cover, and then climb onto the telescopic rod. Since the counting sensor is located on the lower rod and above the barrel cover, when the apple snails climb up the sidewall of the lower rod to the upper rod, the apple snails will pass the counting sensor. The counting sensor senses the apple snails and transmits a signal to the controller. The controller counts the apple snails. Thus, the device also has the function of counting the apple snails that climb onto the upper rod.

[0028] When the apple snails and snail eggs are scraped off the upper rod, the apple snails and snail egg blocks will fall down and pass the counting sensor. The counting sensor senses the apple snails and snail egg blocks and transmits a signal to the controller. The controller counts the apple snails and snail egg blocks. Thus, the device can count and monitor the total number of scraped apple snails and snail egg blocks.

[0029] Thus, through the device, there is no need for manual calculation of the apple snails and snail eggs. The operation is simple and convenient, and it is convenient for personnel to master relevant statistical data such as the number of trapped apple snails and the number of egg blocks. The counting and monitoring function of the adult snails and snail eggs is realized, which provides important data support for studying the harm degree of apple snails and analyzing the invasion risk.

[0030] Preferably, as an improvement, the bottom of the collecting barrel is fixedly connected with a plug. The plug is used to be inserted into the soil at the bottom of the water, so that the collecting barrel can be stably located in the water.

[0031] Preferably, as an improvement, the collecting barrel includes an upper barrel part and a lower barrel part. The top of the lower barrel part is fixedly connected with the bottom of the upper barrel part. The plug is fixedly connected with the bottom of the lower barrel part. The sidewall of the lower barrel part is made of flexible telescopic material. The lower barrel part is provided with a third driving mechanism for driving the vertical movement of the upper barrel part. The side surface of the top of the upper barrel part is provided with a liquid level sensor. The collecting barrel is provided with a controller. The liquid level sensor and the third driving mechanism are electrically connected with the controller.

[0032] In order to facilitate the apple snail to climb to the barrel cover, the top of the collection barrel is slightly higher than the liquid level of the water, and because the liquid level of part of the river and the water body of the wetland is not constant, the liquid level will rise and fall, when the liquid level rises, the liquid level will submerge the barrel cover, and water will enter the collection barrel, if the liquid level falls, the liquid level is far away from the barrel cover, which is not conducive to the apple snail to climb to the barrel cover. In order to solve this problem, the inventor sets a liquid level sensor on the top side of the upper barrel part, the liquid level sensor detects the liquid level, when the liquid level changes, the liquid level sensor transmits information to the controller, the controller controls the third driving mechanism, the third driving mechanism controls the vertical movement of the upper barrel part, so that the top of the upper barrel part adapts to the movement of the liquid level, the top of the upper barrel part will always be slightly higher than the liquid level, avoiding the liquid level rising into the collection barrel, and avoiding the liquid level falling and being not conducive to the apple snail to climb to the barrel cover. The flexible telescopic material in the scheme can automatically lengthen or shorten according to the movement of the upper barrel part, and the flexible telescopic material can wrap the third driving mechanism to avoid the third driving mechanism from being immersed in water.

[0033] When the device has a counting function, the present application also relates to a counting and monitoring method of apple snails and snail egg blocks, comprising the following steps: S1, the collection barrel is put into the water, the apple snail climbs to the upper rod, the apple snail passes through the counting sensor, the counting sensor senses the apple snail, the counting sensor transmits the signal to the controller, the controller counts the apple snail, and the counting is a; S2, when the apple snail is collected, the apple snail and the egg block on the upper rod are scraped off, the apple snail and the egg block pass through the counting sensor, the counting sensor senses the apple snail and the egg block, the counting sensor transmits the signal to the controller, and the controller counts the total number of the falling apple snail and the egg block, and the counting is b; S3, according to the formula b-a, the number of egg blocks is calculated.

[0034] Therefore, through the scheme, the number of apple snails climbing to the telescopic rod and the number of egg blocks of the apple snail can be calculated respectively, the counting and monitoring are realized, manual counting is not needed, and the operation is simple and convenient.

[0035] In summary, the present application not only can simultaneously clean the apple snails and the snail egg blocks, but also innovatively realizes the separate counting and monitoring of the two, effectively solves the pain points of the traditional method, such as complicated operation, low efficiency and inability to collect in a centralized manner, significantly reduces the labor intensity and direct contact risk of manual cleaning; the number data of the apple snails and the egg blocks can provide key data support for accurately evaluating the harm degree of the apple snails and analyzing the invasion risk. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is a perspective view of an apple snail trapping and collecting device (the barrel cover is in a closed state).

[0037] Figure 2 For Figure 1 Enlarged view of A.

[0038] Figure 3 For a three-dimensional view of the snail trapping and collecting device (the bucket cover is in an open state).

[0039] Figure 4 For Figure 3 Enlarged view of B.

[0040] Figure 5 For a three-dimensional view of the snail trapping and collecting device (the bucket cover is in an open state), mainly showing the internal structure of the collecting bucket.

[0041] Figure 6 For a schematic view of the collecting bucket placed in water.

[0042] Figure 7 For a schematic view of the telescopic rod.

[0043] Figure 8 For Figure 7 Enlarged view of C.

[0044] Figure 9 For Figure 7 Enlarged view of D.

[0045] Figure 10 For Figure 7 Enlarged view of E.

[0046] Figure 11 For a schematic view of the height-adjustable collecting bucket.

[0047] Figure 12 For a schematic view of the wire scraping.

[0048] Figure 13 For a three-dimensional view of the snail trapping and collecting device (the bucket cover is in an open state). DETAILED DESCRIPTION

[0049] The following will be further described in detail through specific embodiments: The reference signs in the drawings of the specification include: collecting bucket 1, plug 2, bucket cover 3, upper rod 4, rotating block 5, lower rod 6, second motor 7, shaft coupling 8, rotating shaft 9, box body 10, rod seat 11, baffle 12, soil 13, water 14, lower bucket part 15, upper bucket part 16, lower bucket part bottom 17, third motor 18, second screw rod 19, liquid level sensor 20, placing box 21, through hole 22, air hole 23, moving block 24, first screw rod 25, first motor 26, guide inclined part 27, emitting plate 28, receiving plate 29, notch 30, shielding cover 32, support rod 33, wire scraping 34.

[0050] Example 1 The basics are as follows: Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown: This embodiment discloses a golden apple snail trapping and collection device, including a collection bucket 1 for placing in water 14. The collection bucket 1 is a square bucket, and the material of the collection bucket 1 can be steel or plastic. The bottom of the collection bucket 1 is fixed with four prongs 2 by bolts or welding. The bottom of the prongs 2 is pointed, so as to facilitate insertion into the mud 13 at the bottom of the water 14 in ponds, paddy fields, riverbanks, lakebanks, and reservoirs.

[0051] A lid 3 is movably connected to the top of the collection bucket 1. The lid 3 can be connected in various ways, such as a horizontal sliding connection, a vertical sliding connection, or a rotating connection. This embodiment preferentially uses a rotating connection. Specifically, there are two lids 3. One end of each lid 3 is a rotating end, and these rotating ends are spaced apart and rotatably connected (e.g., via a pivot or hinge) to the top edge of the collection bucket 1. The other end of each lid 3 is a free end, which is brought close together and faces each other. The lids 3 are closed by folding them over. Figure 1 (as shown) and open ( Figure 3 (As shown). In this embodiment, the collection bucket 1 is a square bucket. Of course, in other embodiments, it can also be other shapes, such as a round bucket.

[0052] A vertical telescopic rod is fixedly connected inside the collection bucket 1. In this embodiment, the telescopic rod includes a lower rod 6 and an upper rod 4. The lower rod 6 has a vertical rod cavity, and the upper rod 4 is vertically slidably connected to the rod cavity. The telescopic rod can extend or retract by sliding the upper rod 4 vertically within the rod cavity of the lower rod 6. The telescopic rod and the collection bucket 1 are fixed together. Figure 5 As shown, a rod seat 11 is welded to the bottom of the lower rod 6, and the rod seat 11 is fixed to the bottom of the inside of the collection bucket 1 by screws.

[0053] This embodiment illustrates three telescopic rods; however, in other embodiments, other numbers may be used. In this embodiment, all three telescopic rods are located at the free ends of the two bucket lids 3, and are arranged sequentially along the free ends of the two bucket lids 3. The telescopic rods pass through the bucket lids 3. Specifically, in conjunction with… Figure 2 and Figure 3 As shown, both bucket lids 3 have notches 30 at their free ends for the telescopic rod to pass through. When the two bucket lids 3 are closed, the notches 30 of the two bucket lids 3 are opposite each other. In this way, the telescopic rod will not affect the closing or opening of the bucket lids 3, whether they are in the closed state or during the opening process.

[0054] In this embodiment, the top end of the lower rod 6 is located inside the collection bucket 1, so that when the bucket lid 3 is closed, the top end of the lower rod 6 is below the bucket lid 3. Alternatively, even if the top end of the lower rod 6 is above the bucket lid 3 when the bucket lid 3 is closed, the distance between the top end of the lower rod 6 and the bucket lid 3 is ≤1-2cm.

[0055] In this embodiment, the upper rod 4 has an internal chamber, and the side wall of the upper rod 4 has multiple vent holes 23. The chamber contains a lure for attracting golden apple snails (such as a slow-release gel mixed with the juice of plants that golden apple snails prefer). The odor of the lure inside the upper rod 4 can be released through the vent holes 23.

[0056] The dimensions of this device can be set according to specific circumstances. This embodiment provides the following dimensional examples: the vertical length of the insertion pin 2 is 15-20cm; the length and width of the collection bucket 1 are both 15-30cm; the height of the collection bucket 1 is 20-40cm; the length of the upper rod 4 is 20-30cm. The upper rod 4 and lower rod 6 can be round or square rods; this embodiment uses square rods. The width of the cross-section of the upper rod 4 and lower rod 6 is 1-2cm.

[0057] The specific implementation process is as follows: (Combined with...) Figure 6 As shown, insert the prong 2 into the soil 13 in the water 14, fix the collection bucket 1 into the water 14, with the top of the collection bucket 1 slightly higher than the water surface (1-5cm above the water surface), so that the bucket lid 3 is in the closed state, pull the telescopic rod, the telescopic rod is in the extended state, and the top of the upper rod 4 of the telescopic rod is above the bucket lid 3.

[0058] Based on the climbing characteristic of golden apple snails when laying eggs, the golden apple snails in water 14 will climb up the side wall of the collection bucket 1. The golden apple snails climb onto the bucket lid 3 of the collection bucket 1, and continue to move along the bucket lid 3 to the telescopic rod, and climb up the telescopic rod. Some of the golden apple snails lay eggs on the telescopic rod, and the eggs are stuck to the side wall of the upper rod 4.

[0059] When it is necessary to collect golden apple snails, such as Figure 3 As shown, open the lid 3 and press the top of the upper rod 4 with your hand to move it downwards into the lower rod 6, shortening the telescopic rod. As the golden apple snails and eggs on the upper rod 4 pass the top of the lower rod 6, the top of the lower rod 6 will scrape off all the golden apple snails and egg masses from the upper rod 4, which will fall into the collection box for collection. After the golden apple snails and egg masses on the upper rod 4 have been scraped off and collected, keep the lid 3 closed on top of the collection bucket 1 to prevent the golden apple snails from crawling out of the collection bucket 1.

[0060] The telescopic rod can be further lengthened, so that the top end of the upper rod 4 is above the barrel cover 3, and the same method is used to continue attracting and luring the golden apple snails, so as to trap and collect the golden apple snails in the water 14.

[0061] After the device collects the golden apple snails and snail eggs, the collection barrel 1 can be taken out of the water, and the golden apple snails and snail eggs in the barrel can be poured out. A discharge door can also be provided on the bottom or side wall of the collection barrel 1, and a sealing rubber strip is provided on the edge of the discharge door. When the collection barrel 1 is in the water, the discharge door is in a closed state, and when the golden apple snails and snail eggs in the collection barrel 1 need to be taken out, the collection barrel 1 is taken out of the water and the discharge door is opened, and the golden apple snails and snail eggs pass through the discharge door.

[0062] Embodiment 2 This embodiment is further optimized on the basis of Embodiment 1. In this embodiment, the collection barrel 1 is provided with a first driving mechanism for automatically driving the telescopic rod to extend and retract. In combination with Figure 7 、 Figure 9 and Figure 10 , it is shown that the first driving mechanism includes a first motor 26, which is located inside the lower rod 6 and is fixed (for example, clamped or fixed by screws) at the bottom of the collection barrel 1. A vertical first screw rod 25 is coaxially connected to the output shaft of the first motor 26, and a moving block 24 is welded and fixed inside the bottom of the upper rod 4. The moving block 24 is threadedly connected to the first screw rod 25. Thus, by rotating the first motor 26, the first motor 26 drives the first screw rod 25 to rotate, and the first screw rod 25 drives the moving block 24 to move vertically, thereby achieving vertical movement of the upper rod 4 and automatic extension and retraction of the telescopic rod. Thus, the extension and retraction of the telescopic rod does not require manual operation and is simple and convenient to operate.

[0063] In this embodiment, when the upper rod 4 moves vertically, in order to avoid interference between the trapping agent and the first screw rod 25, in combination with Figure 8 , it is shown that the trapping agent in this embodiment is installed at the top of the upper rod 4, so that the trapping agent does not collide with the first screw rod 25 during the vertical movement of the upper rod 4. In this embodiment, the specific setting mode of the trapping agent is that the top end of the upper rod 4 is provided with a insertion hole, and a placing box 21 is inserted into the insertion hole. The placing box 21 is provided with a through hole 22, and the trapping agent is placed in the placing box 21, so that the smell of the trapping agent can be emitted outward through the through hole 22, the cavity of the upper rod 4 and the air permeable hole 23.

[0064] Of course, in other embodiments, the first motor 26 and the first lead screw 25 can also be located on the outside of the lower rod 6 instead of inside it. In this case, the side wall of the lower rod 6 has a vertical strip hole, and a movable block is welded to the bottom outer side of the upper rod 4. The movable block passes through the strip hole, and the part of the movable block located on the outside of the lower rod 6 is threadedly connected to the first lead screw 25. In this way, the first motor 26 drives the first lead screw 25 to rotate, the first lead screw 25 drives the movable block to move, the movable block moves vertically in the strip hole, and the movable block drives the upper rod 4 to move, thereby realizing the extension and retraction of the telescopic rod. At this time, since the first lead screw is no longer located in the upper rod 4, the first lead screw 25 will not interfere with the trapping agent, and the trapping agent does not need to be placed only at the top of the upper rod 4, but can be placed at any position in the internal cavity of the upper rod 4.

[0065] Example 3 This embodiment improves the top of the lower rod 6, combining... Figure 2 As shown, the bottom of the lower rod 6 is provided with a guide slope 27. The thickness of the guide slope 27 gradually decreases from the bottom to the top. The top of the guide slope 27 is a pointed tip. One side of the guide slope 27 is a vertical contact surface that fits against the side wall of the upper rod 4, and the other side of the guide slope 27 is an inclined surface.

[0066] As a result, the upper rod 4 moves downwards, and the golden apple snails and eggs on it move downwards together. The golden apple snails and eggs on the upper rod 4 then move to the guide slope 27 at the top of the lower rod 6. The tip of the guide slope 27 scrapes away the golden apple snails and egg mass on the upper rod 4, thus facilitating their detachment from the upper rod 4. The detached golden apple snails and egg mass fall downwards along the inclined surface. The thin tip of the guide slope 27 helps to scrape the egg mass off the upper rod 4 and move it downwards along the inclined surface, preserving the integrity of the egg mass and scraping it off as a whole.

[0067] Example 4 Combination Figure 12 As shown, the guide bevel 27 may not be provided at the top of the lower rod 6. In this case, a scraper wire 34 can be fixedly connected to the top of the lower rod 6. Specifically, vertical support rods 33 are welded, bonded, screwed, or snapped at the four corners of the top of the lower rod 6. Scraper wires 34 are connected between adjacent support rods 33. The scraper wires 34 can be fixed to the support rods 33 by welding, snapping, wrapping, or tethering. The diameter of the scraper wire 34 is no greater than 0.1mm. The scraper wire 34 can be made of metal or non-metal (such as fishing line material). The scraper wire 34 is wrapped around the outer side wall of the upper rod 4. The scraper wire 34 is 0.5-1cm away from the top of the lower rod 6. The scraper wire 34 is attached to the outer side wall of the upper rod 4.

[0068] Thus, during the downward movement of the lower rod 6, the snails and snail eggs on the upper rod 4 move to the scraping wire 34, and the scraping wire 34 scrapes the snails and egg blocks on the side of the upper rod 4. The scraping wire 34 is thin, and when the scraping wire 34 scrapes the snail egg blocks from the upper rod 4, it is beneficial to the overall scraping of the egg blocks.

[0069] The newly laid snail eggs have a certain degree of stickiness, but as the water evaporates, the eggshell hardens. If the snail eggs are those that have been in the air for a period of time, the snail egg blocks on the upper rod can be easily scraped off. However, if the collection is performed on early newly laid eggs, even if the scraping wire 34 passes over the snail eggs, a small number of snail eggs may still stick to the upper rod 4 and cannot be completely scraped off. Therefore, in other embodiments, the scraping wire 34 is a metal heating wire, the scraping wire 34 is an electric heating wire, and the end of the scraping wire 34 is wrapped with an insulating protective layer, which is fixed on the support rod 33. By electrifying the electric heating wire, heat can be generated (heating temperature, for example, 50-100°C), so that when the exposed scraping wire 34 scrapes part of the newly laid snail eggs, the scraping wire 34 can heat the part of the snail eggs that are attached to the upper rod 4, causing the part of the snail eggs that are attached to the upper rod 4 to harden. By heating, the hardened egg blocks on the upper rod 4 are more easily scraped off by the scraping wire 34.

[0070] Embodiment 5 In combination Figures 3-5 As shown, the present embodiment improves the driving mode of the rotating cover. The bucket cover 3 of the present embodiment is no longer simply rotated on the top of the collection barrel 1 through the rotating shaft and hinge of Embodiment 1.

[0071] In the present embodiment, the collection barrel 1 is provided with a second driving mechanism for driving the automatic folding of the bucket cover 3. Specifically, the second driving mechanism includes a second motor 7, the top of the collection barrel 1 is provided with a motor slot, the second motor 7 is installed in the motor slot, the output shaft of the second motor 7 is connected with a transverse rotating shaft 9 through a shaft coupling 8, the top of the collection barrel 1 is provided with a rotating slot, the rotating end of the bucket cover 3 is integrally fixed with a rotating block 5, the rotating shaft 9 penetrates through the rotating block 5, and the rotating shaft 9 and the rotating block 5 are fixedly connected (for example, the rotating shaft 9 is a spline shaft, the rotating block 5 is provided with a spline groove, and the spline shaft penetrates through the spline groove), and the rotating shaft 9 penetrates through the top end of the collection barrel 1. Thus, the second motor 7 drives the rotating shaft 9 to rotate on the top of the collection barrel 1, the rotating shaft 9 drives the rotating block 5 to rotate together, the rotating block 5 drives the bucket cover 3 to flip, and the automatic closing and opening of the bucket cover 3 is realized.

[0072] In combination Figure 3 As shown, a shielding cover 32 is closed at the motor slot, and the shielding cover 32 is fixed on the collection barrel 1 by screws, so that the shielding cover 32 can shield the motor slot and avoid the exposure of the second motor 7.

[0073] In both the embodiment 2 and the present embodiment, the inside of the collecting barrel 1 is provided with a box 10, the box 10 is provided with a battery, the battery is electrically connected with the first motor 26 through an electric wire, and the battery is electrically connected with the second motor 7 through an electric wire. The bottom of the collecting barrel 1 is provided with an electric wire slot, the electric wire is connected with the first motor 26 through the electric wire slot, and the bottom of the collecting barrel 1 is covered with a baffle 12, so that the electric wire slot can be shielded. The electric wire connected with the second motor 7 is embedded in the inside of the sidewall of the collecting barrel 1.

[0074] In addition, in some embodiments, a controller (such as a control chip, a microcontroller, etc.) can also be arranged in the box 10, the controller is electrically connected with the battery, the controller is electrically connected with the first motor 26 and the second motor 7, and a button for controlling the controller can be arranged on the top of the collecting barrel 1, or the controller is connected with a remote controller (or a mobile phone) independent of the collecting barrel 1 in a wireless (WiFi or Bluetooth) manner. In this way, the controller is controlled by pressing the button or by operating the remote controller (or the mobile phone), the controller controls the first motor 26 and the second motor 7 after receiving the control signal instruction, so as to control the extension and retraction of the telescopic rod and the folding of the barrel cover 3. Therefore, the device is more intelligent.

[0075] Embodiment 6 On the basis of the embodiment 5, the device is further optimized. In the present embodiment, the top end of the lower rod 6 is higher than the barrel cover 3 (located outside the barrel cover 3) when the barrel cover 3 is closed. The four sidewalls of the lower rod 6 are each provided with a counting sensor, and the counting sensor is located above the barrel cover 3 in the closed state. The controller is electrically connected with the counting sensor.

[0076] In the present embodiment, the counting sensor is selected as an optical sensor, which specifically includes an optical signal transmitter and an optical signal receiver. Figure 2 As shown in the figure, the four sides of the top end of the lower rod 6 are each fixed with a transmitting plate 28 and a receiving plate 29, the transmitting plate 28 and the receiving plate 29 are oppositely arranged, and the gap between the transmitting plate 28 and the receiving plate 29 is the gap through which the snail or the egg mass passes. The optical signal transmitter is installed on the transmitting plate 28, and the optical signal receiver is installed on the receiving plate 29. The optical signal transmitter and the optical signal receiver are oppositely arranged. When the snail or the egg mass does not pass through the gap between the transmitting plate 28 and the receiving plate 29, the light emitted by the optical signal transmitter is received by the optical signal receiver. When the snail or the egg mass passes through the gap between the transmitting plate 28 and the receiving plate 29, the light emitted by the optical signal transmitter is blocked by the snail or the egg mass, and the optical signal receiver receives the light. The interruption of the light indicates that the snail or the egg mass has passed through the gap between the transmitting plate 28 and the receiving plate 29.

[0077] The present embodiment also relates to a counting method of the snail and the egg mass, which includes the following steps: S1. Place the collection bucket 1 into the water 14. The apple snail climbs onto the bucket lid 3 and then climbs up the lower rod 6 to the upper rod 4. Since there are counting sensors on all four sides of the top of the lower rod 6, the apple snail will always pass through the gap between the transmitting plate 28 and the receiving plate 29, no matter which side it climbs from. The apple snail blocks the light, and the light signal receiver is interrupted. The light signal receiver transmits the interruption signal to the controller. The controller counts the number of interruption signals to obtain the number of apple snails, which is a. S2. When collecting golden apple snails, the upper rod 4 is moved downwards. At this time, the golden apple snails and egg masses on the upper rod 4 are scraped off. The scraped golden apple snails and egg masses fall downwards and pass between the emitting plate 28 and the receiving plate 29. Similarly, through the light sensing, the controller counts the total number of falling golden apple snails and egg masses, and the count is b. S3. Calculate the number of egg masses according to the formula ba.

[0078] Example 7 In this embodiment, the height of the collection bucket 1 can be adjusted according to the liquid level. Specifically, in combination with Figure 11 As shown, the collection bucket 1 in this embodiment includes an upper bucket 16 and a lower bucket 15. The top of the lower bucket 15 and the bottom of the upper bucket 16 are integrally fixedly connected, and the plug 2 is fixedly connected to the bottom 17 of the lower bucket 15. The side wall of the lower bucket 15 is made of a flexible and extensible material, such as rubber or plastic, and the side wall of the lower bucket 15 is a square corrugated tube. A third drive mechanism for driving the upper bucket 16 to move vertically is provided inside the lower bucket 15, and a liquid level sensor 20 is installed on the side of the top of the upper bucket 16. The third drive mechanism in this embodiment includes a third motor 18 and a second lead screw 19. The third motor 18 is fixed to the bottom 17 of the lower bucket 18, and the output shaft of the second lead screw 19 and the third motor 18 are coaxially fixedly connected. The second lead screw 19 passes vertically through the bottom of the upper bucket 16, and the second lead screw 19 is threadedly connected to the bottom of the upper bucket 16.

[0079] The liquid level sensor 20 and the third motor 18 are both electrically connected to the controller. In this embodiment, the liquid level sensor 20 (e.g., an ultrasonic liquid level sensor or a float-type liquid level sensor) is capable of detecting the height of the liquid surface.

[0080] Therefore, the liquid level sensor 20 detects the liquid level. When the liquid level changes, the liquid level sensor 20 transmits the information to the controller. The controller controls the third motor 18 to rotate, and the third motor 18 controls the second lead screw 19 to rotate, thereby controlling the upper barrel 16 to move vertically. This restores the distance between the top of the upper barrel 16 and the liquid surface to the initial state. The distance between the top of the upper barrel 16 and the liquid surface remains unchanged. That is, when the liquid level rises, the upper barrel 16 also moves upward by a corresponding distance, and when the liquid level falls, the upper barrel 16 also falls by a corresponding distance.

[0081] Thus, the liquid entering the collecting barrel 1 caused by the liquid level rising and the top height of the collecting barrel 1 being unchanged is avoided. The distance between the liquid level and the top of the collecting barrel 1 caused by the liquid level falling and the top height of the collecting barrel 1 being unchanged is also avoided. The distance being large is avoided, which is not conducive to the apple snails climbing onto the barrel cover 3.

[0082] Embodiment 8 In combination Figure 13 As shown in the above embodiments, the opening mode of the barrel cover 3 is outwardly turned, that is, after the barrel cover 3 is opened, the barrel cover 3 is located outside the top of the collecting barrel 1. In this embodiment, the opening mode of the barrel cover 3 is inwardly turned. When this mode is adopted, the edge of the barrel cover 3 does not exceed the inner wall of the collecting barrel 1, and the edge of the barrel cover 3 is located inside the inner wall of the collecting barrel 1. When the opening mode of the barrel cover 3 is inwardly turned, after the barrel cover 3 is opened, the barrel cover 3 is folded towards the inside of the collecting barrel 1. Compared with the outwardly turned mode, the small amount of apple snails left on the barrel cover 3 will fall into the collecting barrel 1 for collection, and the small amount of apple snails left on the barrel cover 3 falling outside the collecting barrel 1 when the barrel cover 3 is opened is avoided.

[0083] The second driving mechanism in this embodiment includes a second motor 7. The second motor 7 is fixedly installed on the outside or the side wall of the collecting barrel. A protective cover (not shown in the figure) for protecting the second motor 7 can be arranged on the collecting barrel. Figure 13 The output shaft of the second motor 7 is connected with a transverse rotating shaft through a shaft coupling. The rotating shaft is fixedly connected with the end of the barrel cover away from the telescopic rod (for example, the rotating shaft is a spline shaft, and a spline groove is arranged on the barrel cover, and the spline shaft penetrates through the spline groove). The rotating shaft penetrates through the top end of the collecting barrel 1, and the rotating shaft is rotatably arranged on the top of the collecting barrel 1. Thus, the second motor 7 drives the rotating shaft to rotate on the top of the collecting barrel 1, and the rotating shaft drives the barrel cover 3 to turn over, so that the automatic covering and turning over opening of the barrel cover 3 are realized.

[0084] The above-mentioned is only an embodiment of the present application. The specific technical solutions and / or common knowledge of the scheme are not described in detail. It should be pointed out that, for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be regarded as the protection scope of the present application. The protection scope of the present application should be subject to the content of the claims, and the specific implementation mode and the like in the description can be used to explain the content of the claims.

Claims

1. An apparatus for trapping and collecting of the apple snail, Pomacea canaliculata, characterized by: Including a collection barrel for putting into water, the top of the collection barrel is movably connected with a barrel cover; the inside of the collection barrel is fixedly connected with a vertical telescopic rod, the telescopic rod includes a lower rod and an upper rod, the lower rod is provided with a vertical rod cavity, and the upper rod is vertically and slidably connected in the rod cavity; the telescopic rod penetrates through the barrel cover, and the barrel cover is provided with a gap for the telescopic rod to penetrate through.

2. The apparatus according to claim 1, wherein: The collection barrel is provided with a first driving mechanism for driving the telescopic rod to automatically extend and retract.

3. The snail trap and collection device of claim 1, wherein: The inside of the upper rod is provided with a chamber, the side wall of the upper rod is provided with a plurality of air permeable holes, and the inside of the chamber is provided with a trapping agent.

4. The apparatus according to claim 1, wherein: The top end of the lower rod is provided with a guide slope, the thickness of the guide slope gradually decreases from the bottom to the top, the top end of the guide slope is a pointed end, one side of the guide slope is a fitting surface matched with the side wall of the upper rod, and the other side of the guide slope is an inclined surface.

5. The snail trap and collection device of claim 1, wherein: The top end of the lower rod is fixedly connected with a scraping wire, and the scraping wire surrounds the outside of the side wall of the upper rod.

6. The device according to claim 5, wherein: The scraping wire is an electric heating wire.

7. The apparatus of claim 1, wherein: The number of the barrel covers is two, the two barrel covers are rotatably connected at the top of the collection barrel, the rotating ends of the two barrel covers are away from each other, the free ends of the two barrel covers are close to each other, the telescopic rod is located at the free ends of the two barrel covers, and the gap is located at the free ends of the barrel covers; the collection barrel is provided with a second driving mechanism for driving the barrel cover to automatically fold.

8. The apparatus of claim 1, wherein: The lower rod and the upper rod are square rods; the four side walls of the lower rod are provided with counting sensors; when the barrel cover is closed, the top end of the lower rod is higher than the barrel cover, and the counting sensors are located above the barrel cover; The collection barrel is provided with a controller, and the controller and the counting sensors are electrically connected.

9. The apparatus of claim 1, wherein: The bottom of the collection barrel is fixedly connected with a plug.

10. The snail trapping and collecting device according to claim 9, wherein: The collection barrel includes an upper barrel part and a lower barrel part, the top of the lower barrel part is fixedly connected with the bottom of the upper barrel part, and the plug is fixedly connected to the bottom of the lower barrel part; the side wall of the lower barrel part is made of a flexible and telescopic material; the inside of the lower barrel part is provided with a third driving mechanism for driving the upper barrel part to vertically move, and the side of the top of the upper barrel part is provided with a liquid level sensor. The collection barrel is provided with a controller, and the liquid level sensor and the third driving mechanism are electrically connected with the controller.

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