A device and method for collecting and screening intertidal biological samples from tidal flats.

Abstract

This invention relates to the field of intertidal biological sampling technology and discloses a device and method for collecting and screening intertidal biological samples. The device includes a frame that can collect and screen intertidal organisms. During sampling, the sample can be screened and filtered to remove sediment. The filtered biological samples can be collected from multiple locations. The device can also wash the samples during filtration and automatically replenish water. The washing process is mobile and thorough, and the washing and filtration processes can be monitored to assess the degree of washing. Furthermore, the device can excavate samples for filtration and screening, and can collect samples from multiple locations. The device can move across the intertidal zone to collect samples at different locations.

Description

Technical Field

[0001] This invention belongs to the field of intertidal biological sampling technology, specifically a device and method for collecting and screening intertidal biological samples from tidal flats. Background Technology

[0002] Currently, intertidal biological sampling is mainly conducted manually. Surveyors carry various survey tools, such as sampling frames (25cm×25cm), shovels, spades, sample sieves, and buckets, to the survey site on foot. They manually dig mud / sand plots (25cm long×25cm wide and 30cm deep), place them in a sieve (0.5 mm aperture), and carry them to a water source. Two people then lift the sieve and shake it back and forth, continuously rinsing the mud and sand samples with water. The various organisms remaining in the sieve are collected into sample bottles. This process is repeated several times, with multiple diggings and sievings. Finally, formaldehyde solution is added to the samples for fixation before they are taken back to the laboratory for analysis.

[0003] The sampling and screening process is extremely labor-intensive and time-consuming, difficult, and inefficient. If the survey site is located in the silty intertidal zone, walking on the mudflats is very difficult, and siltation is very severe. It is also very difficult for surveyors to reach the survey site, and they may get stuck in the mud. Severe siltation poses a serious threat to the safety of surveyors. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a device and method for collecting and screening intertidal biological samples in tidal flats, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for collecting and screening intertidal biological samples from tidal flats, comprising a frame, the rear of which is connected to a housing via a universal joint. The housing is equipped with a screening and collection mechanism, which includes a filtering and screening channel on the housing. Symmetrical spring grooves are provided on the end walls of the filtering and screening channels. A screening and filtering plate is slidably connected between the end walls of the spring grooves. The spring grooves are inclined at a certain angle, and the screening and filtering plate is inclined at a certain angle. A spring rod is connected to one end wall of the spring groove. The end of the spring rod away from the end wall of the spring groove is connected to the screening and filtering plate. A reciprocating electric push rod is fixedly installed on the spring groove on the other side. The power end of the reciprocating electric push rod is fixedly connected to the screening and filtering plate. A discharge channel is machined through the end wall of the screening and filtering channel. An outlet plate is fixedly connected to the box body on the lower edge of the discharge channel. An electric turntable mounting frame is fixedly connected to the end wall of the box body on the lower side of the outlet plate. An electric turntable is rotatably connected to the upper part of the electric turntable mounting frame. A collection bottle is detachably connected to the upper circumferential array of the electric turntable.

[0006] Preferably, the lower part of the vehicle frame is provided with a motion mechanism, which includes a motion support frame fixedly installed on the lower part of the vehicle frame, a motion frame fixedly connected to the end of the motion support frame, a motion gear cavity provided in the motion frame, a motion gear shaft rotatably connected between the end walls of the motion gear cavity, the motion gear shaft being poweredly connected to a motion motor, the motion motor being fixedly installed in the motion frame, the motion gear meshing with the track, the track being rotatably installed on the motion frame, and crossbars being uniformly fixedly connected to the outer surface of the track.

[0007] Preferably, the motion frame is provided with a cleaning mechanism, which includes symmetrically arranged rotary cylinder cavities within the motion frame. A bevel gear shaft is rotatably connected between the end walls of the rotary cylinder cavities, extending into the motion gear cavity. A driven bevel gear is fixedly connected to the end of the bevel gear shaft within the motion gear cavity, meshing with a driving bevel gear. The driving bevel gear is fixedly mounted on the motion gear shaft. A rotary cylinder is fixedly mounted on the outer surface of the bevel gear shaft within the rotary cylinder cavities. An annular groove is provided on the rotary cylinder, and a ball-head slide rod is slidably connected within the annular groove. The ball-head slide rod is fixedly mounted on one end of a push rod, which is slidably mounted through and on the end wall of the rotary cylinder cavities. A sliding cavity is machined on the motion frame, and the push rod extends into the sliding cavity. An impact sleeve is slidably connected to the other end of the push rod, and a spring cavity is machined within the impact sleeve. A spring is provided within the spring cavity, and the spring is connected to the push rod.

[0008] Preferably, a sampling mechanism is connected to the housing. The sampling mechanism includes a lifting frame fixedly connected to the housing, a lifting screw rotatably connected to the lifting frame, the lifting screw being poweredly connected to a lifting motor, the lifting motor being fixedly installed inside the lifting frame, the lifting screw being threadedly connected to a lifting nut block, the lifting nut block being slidably installed on the lifting frame, and a steering shaft rotatably connected to the lifting nut block, the steering shaft being poweredly connected to a steering motor, the steering motor being fixedly installed inside the lifting nut block, and the outer surface of the steering shaft being fixed. A rotating plate is connected to the upper part of the lifting nut block. A stabilizing ring is connected between the rotating plate and the lifting nut block. A sampling electric push rod is fixedly connected to the lower part of the rotating plate. A driving plate is fixedly connected to the power end of the sampling electric push rod. The driving plate is symmetrically provided with rotating grooves. A rotating shaft is rotatably connected between the end walls of the rotating grooves. A rotating block is fixedly connected to the outer surface of the rotating shaft. A digging head is fixedly connected to the lower part of the rotating block. The digging head is hinged to one end of a connecting rod, and the other end of the connecting rod is hinged to the outer surface of the sampling electric push rod.

[0009] Preferably, the housing is provided with a cleaning mechanism, which includes cleaning grooves symmetrically arranged on the housing. A cleaning screw is rotatably connected between the end walls of the cleaning grooves. The cleaning screw is poweredly connected to a cleaning motor. The cleaning motor is fixedly installed inside the housing. A cleaning nut block is threadedly connected to the outer surface of the cleaning screw. A cleaning frame is fixedly connected to the upper part of the cleaning nut block. A water storage chamber is provided inside the cleaning frame. Cleaning nozzles are uniformly fixedly connected to the bottom wall of the water storage chamber.

[0010] Preferably, the washing rack is connected to a water supply mechanism, which includes a water pipe connected to the washing rack. The end of the water pipe away from the washing rack is fixedly connected to a water pump. The water pump is fixedly connected to a water tank, which is fixedly installed on the vehicle frame. A water pump is fixedly connected to the upper part of the water tank. A water pump is connected to the water pump, and the end of the water pump away from the water pump is connected to a water pump fixing bracket. The water pump fixing bracket is fixedly installed at the front of the vehicle frame.

[0011] Preferably, the cleaning rack is equipped with a monitoring mechanism, which includes a monitoring fixing plate symmetrically and fixedly connected to the cleaning rack. A monitoring camera is fixedly connected to the lower part of the monitoring fixing plate. A wide-angle camera is fixedly connected to the water tank. An antenna is fixedly connected to the frame. The antenna is signal-connected to the remote control device and signal-connected to the control processor. The control processor is located inside the frame and has a corresponding control processing program.

[0012] Preferably, the discharge channel end wall is provided with a sealing mechanism, the sealing mechanism including a sealing groove provided on the discharge channel end wall, a sealing electric push rod fixedly connected to the sealing groove end wall, a sealing plate fixedly connected to the lower part of the sealing electric push rod, and the sealing plate being slidably installed between the sealing groove end walls.

[0013] Preferably, the lower part of the box is symmetrically and fixedly connected with support plates, the support plates are fixedly connected with sliding plates, and the lower part of the support plates is rotatably connected with rollers.

[0014] This invention provides a method for collecting and screening intertidal biological samples from tidal flats, based on the aforementioned device for collecting and screening intertidal biological samples from tidal flats, comprising the following steps: Step 1: The motion mechanism moves, thereby driving the frame to move, which in turn drives the housing to move to the position where sampling is required; Step 2: During the movement, the cleaning mechanism moves to remove the mud and sand adhering to the crossbars and tracks; Step 3: After the box moves to the sampling position, the sampling mechanism moves to dig out the mud and sand, and the dug-out mud and sand is put into the screening and filtering plate. Step 4: The screening and collection mechanism moves to screen the mud and sand on the screening and filter plate, so that the mud and sand fall through the screening and filter plate, and the desired organisms fall into the middle position of the screening and filter plate. Step 5: During screening and collection, the washing mechanism moves to clean the mud and sand, thereby improving the efficiency of filtration and screening. Step Six: During cleaning, the water supply mechanism moves to supply water; Step 7: After screening and washing are completed, the sealing mechanism moves, thereby opening the discharge channel, allowing the organisms on the screening filter plate to enter the collection bottle for collection through the discharge plate; Step 8: During screening and cleaning, the monitoring mechanism moves to monitor the screening and cleaning process.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention provides a device for collecting and screening intertidal biological samples in tidal flats, which can collect and screen intertidal organisms. During the sampling and collection process, the sampled samples can be screened and filtered to remove mud and sand. After filtration, the filtered biological samples can be collected from multiple locations.

[0016] 2. This invention provides a device for collecting and screening intertidal biological samples from tidal flats. It can clean the samples during filtration and automatically replenish water. The device can move during cleaning, resulting in a more thorough cleaning. It can also monitor the cleaning and filtration process, making it easy to judge the degree of cleaning.

[0017] 3. This invention provides a device for collecting and screening intertidal biological samples in tidal flats, which can dig up samples for easy filtration and screening, and can dig up samples from multiple locations, enabling movement on the tidal flat to collect samples from different locations. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0019] In the attached diagram: Figure 1 This is a schematic diagram of the first orientation of a device for collecting and screening intertidal biological samples from mudflats according to the present invention. Figure 2This is a schematic diagram of the second orientation structure of a device for collecting and screening intertidal biological samples in tidal flats according to the present invention; Figure 3 This is a schematic diagram of a third-dimensional structure of a device for collecting and screening intertidal biological samples in tidal flats according to the present invention. Figure 4 This is a schematic diagram of the fourth direction structure of a device for collecting and screening intertidal biological samples in tidal flats according to the present invention; Figure 5 This is a schematic diagram of the fifth direction structure of a device for collecting and screening intertidal biological samples in tidal flats according to the present invention; Figure 6 This is a schematic diagram of the sixth direction structure of a device for collecting and screening intertidal biological samples in tidal flats according to the present invention; Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure at point AA; Figure 8 for Figure 7 Schematic diagram of the cross-sectional structure at point BB; Figure 9 for Figure 6 A schematic diagram of the cross-sectional structure at the CC section; Figure 10 for Figure 9 Schematic diagram of the cross-sectional structure at point DD; Figure 11 for Figure 9 Enlarged structural diagram at point E; Figure 12 This is a schematic diagram of the combined structure of the motion mechanism, the screening and collection mechanism and the sampling mechanism in this invention; Figure 13 This is a schematic diagram of one orientation of the cleaning mechanism in this invention; Figure 14 This is a schematic diagram of the cleaning mechanism in another direction according to the present invention.

[0020] In the diagram: 1-Frame, 2-Water supply pump, 3-Water tank, 4-Water pump, 5-Wide-angle camera, 6-Water suction pipe, 7-Water suction pipe mounting bracket, 8-Antenna, 9-Motion support frame, 10-Track, 11-Horizontal bar, 12-Motion frame, 13-Universal joint, 14-Box, 15-Water supply pipe, 16-Electric turntable, 17-Collection bottle, 18-Outlet plate, 19-Lifting frame, 20-Rotating plate, 21-Drive plate, 22-Connecting rod, 23-Dig head, 25-Lifting nut block, 26-Cleaning chute, 27-Cleaning screw, 28-Screwing filter plate, 29-Cleaning frame, 30-Reciprocating electric push rod, 31-Lifting screw, 32-Sampling electric push rod, 33-Slide plate, 34-Support plate, 35-Monitoring mounting plate, 36-Discharge channel. 37-Water storage chamber, 38-Cleaning nozzle, 39-Spring groove, 40-Spring rod, 41-Steering motor, 42-Steering shaft, 43-Stabilizing ring, 44-Monitoring camera, 45-Enclosed slide groove, 46-Enclosed electric push rod, 47-Enclosed plate, 48-Motion gear cavity, 49-Motion gear, 50-Motion gear shaft, 51-Rotating cylinder cavity, 52-Sliding cavity, 53-Impact sleeve, 54-Bevel gear shaft, 55-Rotating cylinder, 56-Ball head slide rod, 57-Driven bevel gear, 58-Driving bevel gear, 59-Push rod, 60-Annular groove, 61-Cleaning nut block, 62-Spring, 63-Spring cavity, 64-Rotating groove, 65-Rotating shaft, 66-Filtering and screening channel, 67-Rotating block, 68-Electric turntable mounting bracket, 69-Roller. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] like Figure 1-14As shown, this invention provides a device for collecting and screening intertidal biological samples from tidal flats. The components of the device are made of pressure-resistant, corrosion-resistant, and wear-resistant materials. It includes a frame 1, the rear of which is connected to a housing 14 via a universal joint 13. The housing 14 is equipped with a screening and collection mechanism for screening sediment and the organisms within it. The screening and collection mechanism includes a filtering and screening channel 66 on the housing 14. Symmetrical spring grooves 39 are provided on the end walls of the filtering and screening channel 66. A screening and filtering plate 28 is slidably connected between the end walls of the spring grooves 39. The spring grooves 39 and the screening and filtering plate 28 are both inclined at a certain angle. One side of the spring groove 39... A spring rod 40 is connected to the end wall. The end of the spring rod 40 away from the end wall of the spring groove 39 is connected to the screening and filtering plate 28. A reciprocating electric push rod 30 is fixedly installed on the spring groove 39 on the other side. The power end of the reciprocating electric push rod 30 is fixedly connected to the screening and filtering plate 28. A discharge channel 36 is processed through the end wall of the filtering and screening channel 66. An outlet plate 18 is fixedly connected to the box 14 on the lower edge of the discharge channel 36. An electric turntable mounting bracket 68 is fixedly connected to the end wall of the box 14 on the lower side of the outlet plate 18. An electric turntable 16 is rotatably connected to the upper part of the electric turntable mounting bracket 68. A collection bottle 17 is detachably connected to the upper circumferential array of the electric turntable 16. During operation, sediment is poured onto the sieving and filtering plate 28, causing the reciprocating electric push rod 30 to reciprocate, thereby impacting the sieving and filtering plate 28. This causes the spring rod 40 to compress and relax, resulting in vibration of the sieving and filtering plate 28, thus filtering and sieving the sediment. The sediment falls through the sieving and filtering plate 28, while the biological sample remains on the upper side of the sieving and filtering plate 28, located in the middle position. After sieving and filtering, the sealing mechanism moves, opening the discharge channel 36, allowing the biological sample to enter the collection bottle 17 for collection. This causes the electric turntable 16 to rotate, thereby rotating the corresponding collection bottle 17 to the underside of the outlet plate 18, thus achieving different collection methods.

[0023] Advantageously, the lower part of the frame 1 is provided with a motion mechanism, which is used to drive the device to move. The motion mechanism includes a motion support frame 9 fixedly installed on the lower part of the frame 1. A motion frame 12 is fixedly connected to the end of the motion support frame 9. A motion gear cavity 48 is provided in the motion frame 12. A motion gear shaft 50 is rotatably connected between the end walls of the motion gear cavity 48. The motion gear shaft 50 is poweredly connected to a motion motor. The motion motor is fixedly installed in the motion frame 12. The motion gear 49 meshes with the track 10. The track 10 is rotatably installed on the motion frame 12. Horizontal bars 11 are evenly fixedly connected to the outer surface of the track 10. During operation, the motion motor is started, which drives the motion gear shaft 50 to rotate, thereby driving the motion gear 49 to rotate. The motion gear 49 meshes with the track 10, thereby driving the track 10 to rotate, thereby driving the crossbar 11 to move, and thus driving the frame 1 to move.

[0024] Advantageously, the motion frame 12 is provided with a cleaning mechanism for removing mud and sand adhering to the surfaces of the track 10 and the crossbar 11. The cleaning mechanism includes symmetrically arranged rotary cavities 51 within the motion frame 12. A bevel gear shaft 54 ​​is rotatably connected between the end walls of the rotary cavities 51. The bevel gear shaft 54 ​​extends into the motion gear cavity 48. A driven bevel gear 57 is fixedly connected to the end of the bevel gear shaft 54 ​​within the motion gear cavity 48. The driven bevel gear 57 meshes with a driving bevel gear 58, which is fixedly mounted on the motion gear shaft 50. The rotary cavities 51... A rotating cylinder 55 is fixedly mounted on the outer surface of the bevel gear shaft 54. The rotating cylinder 55 is provided with an annular groove 60. A ball-head slide rod 56 is slidably connected in the annular groove 60. The ball-head slide rod 56 is fixedly mounted on one end of the push rod 59. The push rod 59 is slidably mounted on the end wall of the rotating cylinder cavity 51. A sliding cavity 52 is machined on the motion frame 12. The push rod 59 extends into the sliding cavity 52. ​​An impact sleeve 53 is slidably connected to the other end of the push rod 59. A spring cavity 63 is machined in the impact sleeve 53. A spring 62 is provided in the spring cavity 63 and is connected to the push rod 59. During operation, the motion gear shaft 50 rotates, thereby driving the drive bevel gear 58 to rotate. The drive bevel gear 58 meshes with the driven bevel gear 57, thereby driving the bevel gear shaft 54 ​​to rotate, which in turn drives the rotating drum 55 to rotate, thereby driving the annular groove 60 to move. This causes the ball joint slide rod 56 to slide within the annular groove 60, thereby pushing the push rod 59 to move, which in turn pushes the impact sleeve 53 to move and contact the track 10. Due to the shape of the annular groove 60, the push rod 59 reciprocates, causing the impact sleeve 53 to reciprocate and contact the track 10, thereby removing mud and sand from the surface of the track 10. Due to the action of the spring 62, the impact sleeve 53 provides cushioning when contacting the track 10, preventing excessive impact from causing the track 10 to detach from the motion frame 12.

[0025] Advantageously, a sampling mechanism is connected to the housing 14 for sampling and excavating sediment. The sampling mechanism includes a lifting frame 19 fixedly connected to the housing 14, a lifting screw 31 rotatably connected to the lifting frame 19, the lifting screw 31 being poweredly connected to a lifting motor, the lifting motor being fixedly installed inside the lifting frame 19, the lifting screw 31 being threadedly connected to a lifting nut block 25, the lifting nut block 25 being slidably installed on the lifting frame 19, and a steering shaft 42 rotatably connected to the lifting nut block 25, the steering shaft 42 being poweredly connected to a steering motor 41, the steering motor 41 being fixedly installed inside the lifting nut block 25. A rotating plate 20 is fixedly connected to the outer surface of the rotating plate 20, which is rotatably connected to the upper part of the lifting nut block 25. A stabilizing ring 43 is connected between the rotating plate 20 and the lifting nut block 25. A sampling electric push rod 32 is fixedly connected to the lower part of the rotating plate 20. A driving plate 21 is fixedly connected to the power end of the sampling electric push rod 32. A rotating groove 64 is symmetrically provided on the driving plate 21. A rotating shaft 65 is rotatably connected between the end walls of the rotating groove 64. A rotating block 67 is fixedly connected to the outer surface of the rotating shaft 65. A digging head 23 is fixedly connected to the lower part of the rotating block 67. The digging head 23 is hinged to one end of the connecting rod 22, and the other end of the connecting rod 22 is hinged to the outer surface of the sampling electric push rod 32. During operation, the lifting motor is activated, causing the lifting screw 31 to rotate. This, in turn, causes the lifting nut block 25 to move downwards, which in turn causes the rotating plate 20 to move downwards, and consequently, the digging head 23 to move downwards. When the digging head 23 comes into contact with the mud and sand, the sampling electric push rod 32 moves upwards, pulling the driving plate 21 upwards. This, in turn, causes the rotating shaft 65 to move, which in turn causes the rotating block 67 to move, which in turn causes the digging head 23 to rotate. This allows the two digging heads 23 to engage together, allowing the mud and sand to enter. Between the excavator head 23 and the jacking head 23, the lifting nut block 25 resets, thereby driving the rotating plate 20 to reset. After resetting, the steering motor 41 is started, thereby driving the steering shaft 42 to rotate, thereby driving the rotating plate 20 to rotate, thereby driving the excavator head 23 to rotate to the upper side of the filter screening channel 66, thereby driving the sampling electric push rod 32 to move downward, thereby driving the driving plate 21 to move downward, thereby driving the excavator head 23 to open, thereby allowing the mud and sand to enter the filter screening channel 66 and fall onto the screening filter plate 28.

[0026] Advantageously, the housing 14 is provided with a cleaning mechanism, which is used to clean the mud and sand on the surface of the screening and filtering plate 28 to improve the screening and filtering efficiency. The cleaning mechanism includes cleaning grooves 26 symmetrically arranged on the housing 14. A cleaning screw 27 is rotatably connected between the end walls of the cleaning grooves 26. The cleaning screw 27 is poweredly connected to a cleaning motor. The cleaning motor is fixedly installed inside the housing 14. A cleaning nut block 61 is threadedly connected to the outer surface of the cleaning screw 27. A cleaning frame 29 is fixedly connected to the upper part of the cleaning nut block 61. A water storage chamber 37 is provided inside the cleaning frame 29. Cleaning nozzles 38 are uniformly fixedly connected to the bottom wall of the water storage chamber 37. During operation, the cleaning motor is started, which drives the cleaning screw 27 to rotate, thereby driving the cleaning nut block 61 to move, which in turn drives the cleaning frame 29 to move, and the cleaning nozzle 38 is started, thereby spraying water from the water storage chamber 37 to achieve cleaning.

[0027] Advantageously, a water supply mechanism is connected to the cleaning rack 29, which is used to supply water to the water storage chamber 37. The water supply mechanism includes a water supply pipe 15 connected to the cleaning rack 29. The end of the water supply pipe 15 away from the cleaning rack 29 is fixedly connected to a water supply pump 2. The water supply pump 2 is fixedly connected to a water tank 3. The water tank 3 is fixedly installed on the vehicle frame 1. A water pump 4 is fixedly connected to the upper part of the water tank 3. A water pump pipe 6 is connected to the water pump 4. The end of the water pump pipe 6 away from the water pump 4 is connected to a water pump pipe fixing bracket 7. The water pump pipe fixing bracket 7 is fixedly installed at the front of the vehicle frame 1. During operation, the water supply pump 2 is started to draw water from the water tank 3, allowing the water to enter the water storage chamber 37 through the water delivery pipe 15. When water needs to be replenished to the water tank 3, the vehicle frame 1 is moved to a position close to the seawater, so that the water inlet of the water suction pipe 6 is in the seawater, and the water pump 4 is started to pump water, allowing the seawater to enter the water tank 3 through the water suction pipe 6 and the water pump 4.

[0028] Advantageously, the cleaning rack 29 is equipped with a monitoring mechanism for monitoring the entire process. The monitoring mechanism includes a monitoring fixing plate 35 symmetrically and fixedly connected to the cleaning rack 29. A monitoring camera 44 is fixedly connected to the lower part of the monitoring fixing plate 35. A wide-angle camera 5 is fixedly connected to the water tank 3. An antenna 8 is fixedly connected to the frame 1. The antenna 8 is signal-connected to the remote control device and to the control processor. The control processor is located inside the frame 1 and has a corresponding control processing program. The control processor is signal-connected to the electrical components in the device. During operation, the wide-angle camera 5 monitors the overall situation, and the monitoring camera 44 monitors the screening and cleaning process on the screening and filter plate 28. The monitored signals are sent to the control processor, which processes them and sends them to the back-end device via the antenna 8. The back-end device displays the data and inputs corresponding commands on the remote control device. The commands are received by the antenna 8 and sent to the control processor, which then processes them and sends them to the corresponding electrical components.

[0029] Advantageously, a sealing mechanism is provided on the end wall of the discharge channel 36. The sealing mechanism is used to seal the discharge channel 36. The sealing mechanism includes a sealing groove 45 provided on the end wall of the discharge channel 36. A sealing electric push rod 46 is fixedly connected to the end wall of the sealing groove 45. A sealing plate 47 is fixedly connected to the lower part of the sealing electric push rod 46. The sealing plate 47 is slidably installed between the end walls of the sealing groove 45. During operation, after screening and filtration are completed, the closed electric push rod 46 moves upward, thereby driving the closed plate 47 to move upward, which in turn opens the discharge channel 36, allowing the screened and filtered organisms to be discharged through the discharge channel 36.

[0030] Advantageously, the lower part of the box 14 is symmetrically and fixedly connected with support plates 34, and the support plates 34 are fixedly connected with slide plates 33. The slide plates 33 reduce the resistance of movement and facilitate the transportation of the screened mud and sand. The slide plates 33 are similar to a sled structure with an inclined surface at the top. The lower part of the support plates 34 is rotatably connected with rollers 69. The rollers 69 change sliding to rolling, reducing the resistance of movement.

[0031] This invention provides a method for collecting and screening intertidal biological samples from tidal flats, based on the aforementioned device for collecting and screening intertidal biological samples from tidal flats, comprising the following steps: Step 1: The motion mechanism moves, thereby driving the frame 1 to move, which in turn drives the housing 14 to move to the position where sampling is required; Step 2: During the movement, the cleaning mechanism moves to remove the mud and sand adhering to the crossbar 11 and the track 10; Step 3: After the box 14 moves to the sampling position, the sampling mechanism moves to dig out the mud and sand, and the dug out mud and sand is put into the screening and filtering plate 28. Step 4: The screening and collection mechanism moves to screen the mud and sand on the screening and filter plate 28, so that the mud and sand fall through the screening and filter plate 28 and the desired organisms fall in the middle of the screening and filter plate 28. Step 5: During screening and collection, the washing mechanism moves to clean the mud and sand, thereby improving the efficiency of filtration and screening. Step Six: During cleaning, the water supply mechanism moves to supply water; Step 7: After the screening and cleaning are completed, the closing mechanism moves, thereby opening the discharge channel 36, so that the organisms on the screening filter plate 28 enter the collection bottle 17 through the discharge plate 18 for collection. Step 8: During screening and cleaning, the monitoring mechanism moves to monitor the screening and cleaning process.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for collecting and screening intertidal biological samples from tidal flats, characterized in that: The system includes a frame (1), the rear of which is connected to a housing (14) via a universal joint (13). The housing (14) is equipped with a screening and collection mechanism, which includes a filtering and screening channel (66) on the housing (14). Symmetrical spring grooves (39) are provided on the end walls of the filtering and screening channel (66). A screening and filtering plate (28) is slidably connected between the end walls of the spring grooves (39). The spring grooves (39) are inclined at a certain angle, and the screening and filtering plate (28) is also inclined at a certain angle. A spring rod (40) is connected to one end wall of the spring groove (39). The end of the spring rod (40) away from the end wall of the spring groove (39) is connected to the screening and filtering plate (28). A filter plate (28) is connected, and a reciprocating electric push rod (30) is fixedly installed on the spring groove (39) on the other side. The power end of the reciprocating electric push rod (30) is fixedly connected to the screening filter plate (28). A discharge channel (36) is processed through the end wall of the screening channel (66). A guide plate (18) is fixedly connected to the box (14) on the lower edge of the discharge channel (36). An electric turntable mounting bracket (68) is fixedly connected to the end wall of the box (14) on the lower side of the guide plate (18). An electric turntable (16) is rotatably connected to the upper part of the electric turntable mounting bracket (68). A collection bottle (17) is detachably connected to the upper circumferential array of the electric turntable (16). The frame (1) is provided with a motion mechanism at the lower part. The motion mechanism includes a motion support frame (9) fixedly installed at the lower part of the frame (1). A motion frame (12) is fixedly connected to the end of the motion support frame (9). The motion frame (12) is provided with a motion gear cavity (48), and a motion gear shaft (50) is rotatably connected between the end walls of the motion gear cavity (48). The motion gear shaft (50) is poweredly connected to the motion motor. The motion motor is fixedly installed in the motion frame (12). The motion gear (49) meshes with the track (10). The track (10) is rotatably installed on the motion frame (12). Horizontal bars (11) are uniformly fixedly connected to the outer surface of the track (10). The motion frame (12) is provided with a cleaning mechanism, which includes symmetrically arranged rotary cylinder cavities (51) within the motion frame (12). A bevel gear shaft (54) is rotatably connected between the end walls of the rotary cylinder cavity (51). The bevel gear shaft (54) extends into the motion gear cavity (48). A driven bevel gear (57) is fixedly connected to the end of the bevel gear shaft (54) within the motion gear cavity (48). The driven bevel gear (57) meshes with a driving bevel gear (58). The driving bevel gear (58) is fixedly mounted on the motion gear shaft (50). A rotary cylinder (55) is fixedly mounted on the outer surface of the bevel gear shaft (54) within the rotary cylinder cavity (51). The rotating drum (55) is provided with an annular groove (60), and a ball-head slide rod (56) is slidably connected in the annular groove (60). The ball-head slide rod (56) is fixedly installed at one end of the push rod (59). The push rod (59) is slidably installed through the end wall of the rotating drum cavity (51). A sliding cavity (52) is machined on the motion frame (12). The push rod (59) extends into the sliding cavity (52). An impact sleeve (53) is slidably connected to the other end of the push rod (59). A spring cavity (63) is machined in the impact sleeve (53). A spring (62) is provided in the spring cavity (63). The spring (62) is connected to the push rod (59). A sampling mechanism is connected to the housing (14). The sampling mechanism includes a lifting frame (19) fixedly connected to the housing (14), a lifting screw (31) rotatably connected to the lifting frame (19), the lifting screw (31) being poweredly connected to a lifting motor, the lifting motor being fixedly installed inside the lifting frame (19), the lifting screw (31) being threadedly connected to a lifting nut block (25), the lifting nut block (25) being slidably installed on the lifting frame (19), a steering shaft (42) rotatably connected to the lifting nut block (25), the steering shaft (42) being poweredly connected to a steering motor (41), the steering motor (41) being fixedly installed inside the lifting nut block (25), and a rotating plate (20) fixedly connected to the outer surface of the steering shaft (42). The rotating plate (20) is rotatably connected to the upper part of the lifting nut block (25). A stabilizing ring (43) is connected between the rotating plate (20) and the lifting nut block (25). A sampling electric push rod (32) is fixedly connected to the lower part of the rotating plate (20). A driving plate (21) is fixedly connected to the power end of the sampling electric push rod (32). A rotating groove (64) is symmetrically provided on the driving plate (21). A rotating shaft (65) is rotatably connected between the end walls of the rotating groove (64). A rotating block (67) is fixedly connected to the outer surface of the rotating shaft (65). A digging head (23) is fixedly connected to the lower part of the rotating block (67). The digging head (23) is hinged to one end of the connecting rod (22). The other end of the connecting rod (22) is hinged to the outer surface of the sampling electric push rod (32). The housing (14) is provided with a cleaning mechanism, which includes a cleaning chute (26) symmetrically arranged on the housing (14). A cleaning screw (27) is rotatably connected between the end walls of the cleaning chute (26). The cleaning screw (27) is poweredly connected to a cleaning motor. The cleaning motor is fixedly installed inside the housing (14). A cleaning nut block (61) is threadedly connected to the outer surface of the cleaning screw (27). A cleaning frame (29) is fixedly connected to the upper part of the cleaning nut block (61). A water storage chamber (37) is provided inside the cleaning frame (29). A cleaning nozzle (38) is evenly fixedly connected to the bottom wall of the water storage chamber (37). A water supply mechanism is connected to the cleaning rack (29). The water supply mechanism includes a water pipe (15) connected to the cleaning rack (29). The end of the water pipe (15) away from the cleaning rack (29) is fixedly connected to a water pump (2). The water pump (2) is fixedly connected to a water tank (3). The water tank (3) is fixedly installed on the frame (1). A water pump (4) is fixedly connected to the upper part of the water tank (3). A water pump (6) is connected to the water pump (4). The end of the water pump (6) away from the water pump (4) is connected to a water pump fixing bracket (7). The water pump fixing bracket (7) is fixedly installed at the front of the frame (1).

2. The device for collecting and screening intertidal biological samples in tidal flats according to claim 1, characterized in that: The cleaning rack (29) is equipped with a monitoring mechanism, which includes a monitoring fixing plate (35) symmetrically and fixedly connected to the cleaning rack (29). A monitoring camera (44) is fixedly connected to the lower part of the monitoring fixing plate (35). A wide-angle camera (5) is fixedly connected to the water tank (3). An antenna (8) is fixedly connected to the frame (1). The antenna (8) is signal-connected to the remote control device and signal-connected to the control processor. The control processor is located inside the frame (1) and has a corresponding control processing program.

3. The device for collecting and screening intertidal biological samples in tidal flats according to claim 2, characterized in that: The discharge channel (36) is provided with a sealing mechanism on its end wall. The sealing mechanism includes a sealing groove (45) provided on the end wall of the discharge channel (36). A sealing electric push rod (46) is fixedly connected to the end wall of the sealing groove (45). A sealing plate (47) is fixedly connected to the lower part of the sealing electric push rod (46). The sealing plate (47) is slidably installed between the end walls of the sealing groove (45).

4. The device for collecting and screening intertidal biological samples in tidal flats according to claim 3, characterized in that: The lower part of the box (14) is symmetrically fixedly connected with support plates (34), and the support plates (34) are fixedly connected with slide plates (33). The lower part of the support plates (34) is rotatably connected with rollers (69).

5. A method for collecting and screening intertidal biological samples from tidal flats, based on the device for collecting and screening intertidal biological samples from tidal flats as described in claim 4, characterized in that: step include: Step 1: The motion mechanism moves, thereby driving the frame (1) to move, which in turn drives the housing (14) to move to the position where sampling is required; Step 2: During the movement, the cleaning mechanism moves to remove the mud and sand adhering to the crossbar (11) and the track (10); Step 3: After the box (14) moves to the sampling position, the sampling mechanism moves to dig out the mud and sand, and the dug out mud and sand is put into the sieve filter plate (28). Step 4: The screening and collection mechanism moves to screen the mud and sand on the screening and filter plate (28), so that the mud and sand fall through the screening and filter plate (28) and the required organisms fall in the middle of the screening and filter plate (28). Step 5: During screening and collection, the washing mechanism moves to clean the mud and sand, increasing the efficiency of filtration and screening. Step Six: During cleaning, the water supply mechanism moves to supply water; Step 7: After the screening and cleaning are completed, the closing mechanism moves, thereby opening the discharge channel (36), so that the organisms on the screening filter plate (28) enter the collection bottle (17) through the discharge plate (18) for collection. Step 8: During screening and cleaning, the monitoring mechanism moves to monitor the screening and cleaning process.

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