Auxiliary device for field ecological investigation

Abstract

The invention discloses a field ecological investigation auxiliary device, belongs to the technical field of field ecological investigation sampling, and aims to solve the problems that water samples are easy to remain in a pipeline during auxiliary sampling, sampled precipitates or water stains can pollute subsequent samples, and the subsequent samples cannot be easily cleaned by manual flushing or external power equipment during auxiliary cleaning. The device comprises a main body seat and a flushing mechanism, the flushing mechanism used for automatic flushing is arranged on the upper portion of the interior of the main body seat, and through the flushing mechanism, after sampling water is discharged, flushing can be automatically triggered after sampling every time, so that the sampling time is shortened, and the sampling efficiency is improved. The trouble of manual independent flushing operation and external equipment is not needed, flushing water is discharged from inside to outside, residual water and impurities can be washed away in the reverse direction, meanwhile, the flushing water is obtained by means of automatic water inlet of the inclined filter screen for the water area and purification of the adsorption layer, and the water quality is improved while manual flushing water adding is avoided. And the waste of external clean water is also avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of field ecological survey sampling, and particularly to an auxiliary device for field ecological survey. Background Art

[0002] Field ecological survey, as a core means to obtain basic data of ecosystems and explore ecological processes and laws, is crucial for work such as biodiversity conservation, ecosystem restoration, and sustainable utilization of natural resources. It systematically collects various information such as organisms and the environment through on-site surveys, providing data support for ecological research and decision-making. When conducting a survey on field ecological water quality, it is often necessary to cooperate with corresponding water quality sampling devices for auxiliary investigation.

[0003] For current auxiliary devices for field ecological surveys, when taking water samples, it is inconvenient to clean the sample storage cavity after each sampling, which easily leaves residual water samples in the pipeline. For example, the sediment or water stains from the previous sampling will contaminate subsequent samples, and it often requires manual assistance with external pipelines for manual flushing outside or the use of external power equipment for auxiliary cleaning. This not only increases the operation difficulty and working time but also increases the cost of peripheral devices.

[0004] In view of the above problems, an auxiliary device for field ecological surveys is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide an auxiliary device for field ecological surveys. By using this device for work, the problems in the above background, such as easily leaving residual water samples in the pipeline, the sediment or water stains from sampling contaminating subsequent samples, and the increase in difficulty, time, and cost when using manual flushing or external power equipment for auxiliary cleaning, are solved.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An auxiliary device for field ecological surveys, including a main body base and a flushing mechanism. The flushing mechanism for automatic flushing is arranged above the interior of the main body base. The flushing mechanism includes a liquid collection cavity, a liquid storage cavity, an inclined filter screen, an adsorption layer, a lifting rotating rod, a connecting card slot, a fixed clamping plate, and a receiving plate. The liquid storage cavity is arranged below the liquid collection cavity, and an inclined filter screen is installed at the top of the liquid collection cavity. An adsorption layer is installed above the interior of the liquid collection cavity, and a lifting rotating rod penetrates through the middle of the liquid collection cavity. A connecting card slot is arranged below the interior of the inclined filter screen. A fixed clamping plate is fixed on the upper surface of the lifting rotating rod, and a receiving plate is installed at the bottom of the lifting rotating rod; The flushing mechanism further includes an extended pull rod, a piston disc, a liquid extraction chamber, a vertical conduit, a flushing port, and a one-way valve head. One side of the middle part of the lifting rotating rod is provided with an extended pull rod, and a piston disc is installed at the bottom of the extended pull rod. A liquid extraction chamber is arranged below the outside of the piston disc, and a vertical conduit is connected to one side above the liquid extraction chamber. A flushing port is connected to one side below the vertical conduit, and a one-way valve head is installed at the front end of the flushing port.

[0007] Further, the main body seat includes a sampling cylinder, a lifting rope, and a partition plate. A lifting rope is arranged in the middle above the sampling cylinder, and a partition plate is fixed in the middle inside the sampling cylinder. There are four groups of sampling cylinders distributed annularly with respect to the main body seat.

[0008] Further, the lifting rotating rod is respectively slidably connected to the partition plate and the adsorption layer, and the receiving plate is slidably connected to the liquid storage chamber, and the side surface of the receiving plate fits with the inner surface of the liquid storage chamber. The inclined filter screen is communicated with the adsorption layer and the liquid collection chamber.

[0009] Further, the extended pull rod is connected to the liquid extraction chamber for lifting, and the piston disc is slidably connected to the liquid extraction chamber. The liquid extraction chamber is communicated with the vertical conduit, the flushing port, and the one-way valve head, and the flushing port and the one-way valve head are communicated with the liquid storage chamber.

[0010] Further, a ventilation mechanism for connecting and exhausting is connected to one side above the flushing mechanism. The ventilation mechanism includes a ventilation pipe, a folding pipe, and a guide pipe. A folding pipe is arranged in the middle of the ventilation pipe, and a guide pipe is connected above the ventilation pipe. The ventilation pipe and the folding pipe are communicated with the liquid storage chamber and the lifting rope.

[0011] Further, a control mechanism for automatic liquid inlet is arranged in the middle of one side of the flushing mechanism. The control mechanism includes a vertical cavity, a connecting pipe, a first fixed partition plate, and a second fixed partition plate. A connecting pipe is connected to one side below the vertical cavity, and a first fixed partition plate is fixed on one side inside the connecting pipe. A second fixed partition plate is fixed in the middle of the vertical cavity.

[0012] Further, the control mechanism further includes a support spring, a movable disc, a lifting rod, a rack plate, and a mating gear. A support spring is arranged in the middle above the second fixed partition plate, and a movable disc is installed at the top of the support spring. A lifting rod is fixed in the middle below the movable disc, and a rack plate is installed on one side below the lifting rod. A mating gear is meshed with the front side of the rack plate. The lifting rod is slidably connected to the second fixed partition plate, and the movable disc is elastically connected to the second fixed partition plate through the support spring.

[0013] Further, the control mechanism further includes a rotating connecting rod, a rotating valve flap, and a pressing rod. The middle of the front end of the mating gear is connected to the rotating connecting rod, and a rotating valve flap is fixed at the front end of the rotating connecting rod. A pressing rod is fixed in the middle above the movable disk. The mating gear is rotatably connected to the vertical cavity, and the rotating connecting rod penetrates through the first fixed partition.

[0014] Further, a liquid inlet mechanism for liquid inlet filtration is connected to the lower side of one side of the control mechanism. The liquid inlet mechanism includes a liquid inlet pipe, a liquid inlet filter screen, a support frame, and a rotating shaft. A liquid inlet filter screen is installed at the bottom of the liquid inlet pipe, and the liquid inlet filter screen is conical. A support frame is fixedly installed in the middle of the inner side of the liquid inlet pipe. A rotating shaft is connected to the middle of the lower side of the support frame, and the rotating shaft is rotatably connected to the support frame vertically.

[0015] Further, the liquid inlet mechanism further includes a rotating sleeve, an impeller, a fixed bracket, and a brush scraper. A rotating sleeve is rotatably arranged in the middle of the rotating shaft, and the rotating sleeve is fixedly connected to the liquid inlet filter screen. An impeller is installed at the lowermost part of the rotating shaft. A fixed bracket is arranged below the rotating sleeve, and the fixed bracket is fixed on the surface of the rotating shaft. A brush scraper is installed on one side of the fixed bracket.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the flushing mechanism of the present invention, after the sampled water is discharged, the piston disk will pump the purified water in the liquid collection cavity into the vertical conduit. The water flow will rely on the pressure of upward extraction, the gravity of falling from the vertical conduit and flowing out from the flushing port, and the liquid level difference generated up and down from the liquid collection cavity to the liquid storage cavity, so that the vertical conduit produces a siphon effect, enabling the water in the liquid collection cavity to automatically fill into the liquid storage cavity and continuously flow out from the water intake. In this way, after the liquid extraction and discharge are completed, relying on the siphon effect, the liquid storage cavity and the water intake are automatically flushed in a single-way outward discharge manner. At the same time, when the receiving plate moves upward, it can also scrape the side wall of the liquid storage cavity to remove water. Therefore, it can automatically trigger flushing after each sampling, eliminating the need for manual operation of flushing separately and the trouble of relying on external equipment. Moreover, the flushing water is discharged from the inside to the outside, which is more conducive to reversely flushing away the remaining water and impurities. At the same time, the flushing water is obtained by automatically entering the water area through the inclined filter screen and being purified by the adsorption layer, avoiding the addition of manual flushing water and wasting external clean water.

[0017] 2. Through the control mechanism of the present invention, when the four groups of sampling cylinders continuously dive, as the depth increases, the water pressure can successively press the movable disk to enable the rotating valve flaps of each group to open at different depths. Through the integrated design of multiple sampling cylinders and hierarchical triggering by water pressure, the device can automatically open the corresponding liquid inlet pipes in the depth order, such as 1 meter, 2 meters, and 3 meters, when it is lowered once, and synchronously complete the sampling of multi-layer water bodies. This can greatly reduce the working stay time and labor costs, and at the same time avoid the problems of high costs and difficult maintenance in using multiple sensors and power devices for control sampling, significantly improving the efficiency, reliability, and cost advantages of field operations.

[0018] 3. Through the liquid inlet mechanism of the present invention, when taking water, it can automatically rotate to sweep and scrape the surface of the liquid inlet filter screen, preventing impurities such as waterweeds in the water from adhering to the surface of the liquid inlet filter screen along with the water flow, which affects normal water intake. Moreover, when the impeller rotates, it can form an upward water flow, which is conducive to taking the impurities upward and reducing the possibility of adhesion. At the same time, the water flow acting on the surface of the conical liquid inlet filter screen can also play a certain scouring role, thereby further improving the effect of impurity cleaning to ensure the effective flow of water intake. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic three-dimensional external structure diagram of the whole of the present invention; Figure 2 is a schematic three-dimensional internal sectional structure diagram of the sampling cylinder of the present invention; Figure 3 is a schematic three-dimensional internal sectional structure diagram of the sampling cylinder after the lifting rotating rod of the present invention is lifted; Figure 4 of the present invention Figure 3 front view structure diagram; Figure 5 is a schematic three-dimensional external structure diagram of the ventilation mechanism of the present invention; Figure 6 is a schematic three-dimensional external structure diagram of the control mechanism of the present invention; Figure 7 is a schematic three-dimensional internal sectional structure diagram of the vertical cavity of the present invention; Figure 8 is a schematic three-dimensional structure diagram of the movable disk of the present invention; Figure 9 is a schematic three-dimensional external structure diagram of the liquid inlet mechanism of the present invention; Figure 10 is a schematic three-dimensional internal sectional structure diagram of the liquid inlet pipe of the present invention.

[0020] In the figure: 1. Main body seat; 101. Sampling cylinder; 102. Lifting pipe rope; 103. Partition board; 2. Flushing mechanism; 201. Liquid collecting cavity; 202. Liquid storage cavity; 203. Inclined filter screen; 204. Adsorption layer; 205. Lifting rotating rod; 206. Connecting card slot; 207. Fixed clamping plate; 208. Bearing plate; 209. Extension pull rod; 210. Piston disc; 211. Liquid lifting cavity; 212. Vertical conduit; 213. Flushing port; 214. Check valve head; 3. Ventilation mechanism; 301. Vent pipe; 302. Folding pipe; 303. Air guide pipe; 4. Control mechanism; 401. Vertical cavity; 402. Connecting pipe; 403. First fixed partition board; 404. Second fixed partition board; 405. Support spring; 406. Movable disc; 407. Lifting rod; 408. Rack plate; 409. Matching gear; 410. Rotating connecting rod; 411. Rotating valve flap; 412. Pressing rod; 5. Liquid inlet mechanism; 501. Liquid inlet pipe; 502. Liquid inlet filter screen; 503. Support frame; 504. Rotating shaft; 505. Rotating sleeve; 506. Impeller; 507. Fixed bracket; 508. Brush scraper. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] In order to solve the technical problems that when assisting in sampling, it is easy to leave residual water samples in the pipeline, the precipitates or water stains during sampling will contaminate subsequent samples, and when using manual flushing or external power equipment for auxiliary cleaning, the difficulty, time and cost are increased, as Figures 1 - 5 shown, the following preferred technical solutions are provided: A field ecological survey assistance device includes a main body seat 1 and a flushing mechanism 2 arranged above the inside of the main body seat 1. The main body seat 1 includes a sampling cylinder 101 arranged on the periphery of the main body seat 1. A lifting pipe rope 102 is arranged in the middle above the sampling cylinder 101, and a partition board 103 is fixed in the middle of the inner side of the sampling cylinder 101. There are four groups of sampling cylinders 101 distributed annularly around the main body seat 1, and the lifting pipe rope 102 is a hollow and air-permeable hose.

[0023] The flushing mechanism 2 includes a liquid collection chamber 201. A liquid storage chamber 202 is arranged below the liquid collection chamber 201. An inclined filter screen 203 is installed at the top of the liquid collection chamber 201. An adsorption layer 204 is installed above the interior of the liquid collection chamber 201. A lifting rotating rod 205 penetrates through the middle of the liquid collection chamber 201. A connecting slot 206 is arranged below the interior of the inclined filter screen 203. A fixed clamping plate 207 is fixed on the upper side surface of the lifting rotating rod 205. A receiving plate 208 is installed at the bottom of the lifting rotating rod 205.

[0024] An extension pull rod 209 is arranged on one side of the middle of the lifting rotating rod 205. A piston disc 210 is installed at the bottom of the extension pull rod 209. A liquid lifting chamber 211 is arranged below the outside of the piston disc 210. A vertical conduit 212 is connected to one side above the liquid lifting chamber 211. A flushing port 213 is connected to one side below the vertical conduit 212. A one-way valve head 214 is installed at the front end of the flushing port 213.

[0025] The lifting rotating rod 205 is respectively in sliding connection with the partition plate 103 and the adsorption layer 204. The receiving plate 208 is in sliding connection with the liquid storage chamber 202. And the side surface of the receiving plate 208 is in fit with the inner surface of the liquid storage chamber 202. The inclined filter screen 203 is in communication with the adsorption layer 204 and the liquid collection chamber 201.

[0026] The extension pull rod 209 is in lifting connection with the liquid lifting chamber 211. The piston disc 210 is in sliding connection with the liquid lifting chamber 211. The liquid lifting chamber 211 is in communication with the vertical conduit 212, the flushing port 213 and the one-way valve head 214. And the flushing port 213 and the one-way valve head 214 are in communication with the liquid storage chamber 202. Through the flushing mechanism 2, the liquid storage part can be automatically flushed after the sampling liquid discharge is completed.

[0027] Through the lifting rotating rod 205, before sampling, the receiving plate 208 is driven to move downward, so that the fixed clamping plate 207 passes through the connecting slot 206, making the receiving plate 208 slide to the lower part of the liquid storage chamber 202. Then the lifting rotating rod 205 and the fixed clamping plate 207 are rotated by 90 degrees. The rotating part of the lifting rotating rod 205 is above the connection part of the extension pull rod 209 and the lifting rotating rod 205. After rotation, the fixed clamping plate 207 is stuck below the connecting slot 206, and the position of the receiving plate 208 is positioned below the liquid storage chamber 202. When the lifting rotating rod 205 moves downward, it will drive the extension pull rod 209 and the piston disc 210 to move downward together, so that the piston disc 210 moves to the lower part of the liquid lifting chamber 211.

[0028] After the main body base 1 is put into the water area to be sampled, the whole main body base 1 sinks. At this time, the water, after being filtered by the inclined filter screen 203 for impurity particles, enters above the adsorption layer 204 from the upper opening inside the sampling cylinder 101. The adsorption layer 204 is filled with one or more adsorption materials such as activated carbon, resin, and diatomaceous earth, which can adsorb and purify the water after the water automatically filters in. Then the adsorbed water continues to fall into the liquid collection cavity 201. At this time, since the piston disc 210 is below the liquid extraction cavity 211, the water in the liquid collection cavity 201 will not flow into the liquid extraction cavity 211 and the vertical conduit 212. When sampling is completed and the sample water is taken out from the liquid storage cavity 202, the lifting turning rod 205 is rotated back to its original position, so that the lifting turning rod 205 drives the bearing plate 208 to move upward, thereby continuously pressing the sampled water upward from the water intake and discharging it from the liquid storage cavity 202. At this time, due to the limitation of the one-way valve head 214, the discharged water will not flow into the vertical conduit 212. At the same time, for the external collection of the discharged sampled water, only the first part of the water pressed out needs to be taken, and the water at the end of the pressed out can be directly discharged as waste water.

[0029] After the sampled water is extracted and discharged from the bearing plate 208, at this time, the piston disc 210 will move to the upper side of the liquid extraction cavity 211 as the lifting turning rod 205 moves upward, making the vertical conduit 212 communicate with the liquid extraction cavity 211. At the same time, the piston disc 210 will pump the purified water in the liquid collection cavity 201 into the vertical conduit 212. The water flow will rely on the pressure of the upward extraction, the gravity of flowing out from the flushing port 213 as it falls in the vertical conduit 212, and the liquid level difference generated up and down from the liquid collection cavity 201 to the liquid storage cavity 202, so that a siphon effect is generated in the vertical conduit 212, enabling the water in the liquid collection cavity 201 to automatically fill into the liquid storage cavity 202. Thus, after the bearing plate 208 moves upward to drain water, its position remains unchanged, enabling the subsequent water conducted through the vertical conduit 212 to flow through the liquid storage cavity 202 and the surface of the bearing plate 208, and continuously flow out from the water intake. In this way, after the liquid extraction and discharge are completed, relying on the siphon effect, the liquid storage cavity 202 and the water intake are automatically flushed in a single-way outward discharge manner. At the same time, when the bearing plate 208 moves upward, it can also scrape the water on the side wall of the liquid storage cavity 202, so that automatic flushing can be triggered after each sampling, without the trouble of manual operation for flushing and the need to rely on external equipment. Moreover, the flushing water is discharged from the inside to the outside, which is more conducive to flushing away the residual water and impurities in the reverse direction. At the same time, the flushing water is obtained after the water automatically enters the water area through the inclined filter screen 203 and is purified by the adsorption layer 204, avoiding both manual addition of flushing water and waste of external clean water.

[0030] To solve the technical problems that when sampling water at different depths is required, it is often necessary to continuously operate back and forth, increasing the difficulty and time of work, and it is necessary to rely on precise electronic devices for identification and control, increasing the cost and maintenance difficulty, as Figures 1 - 8As shown in the figure, the following preferred technical solutions are provided: On one side above the flushing mechanism 2, a ventilation mechanism 3 is connected. The ventilation mechanism 3 includes an air pipe 301 connected above the surface of the partition plate 103. A folding pipe 302 is arranged in the middle of the air pipe 301, and a guide pipe 303 is connected above the air pipe 301. The air pipe 301 and the folding pipe 302 are communicated with the liquid storage cavity 202 and the lifting pipe rope 102. Through the air pipe 301, a waterproof and breathable membrane is arranged at its bottom, which can only allow gas to pass through. The guide pipe 303 can be connected to the lifting pipe rope 102 to communicate the liquid storage cavity 202 with the external air, which is beneficial to quickly exhausting air and filling water when taking water. At the same time, by using the waterproof and breathable membrane, water will not enter the air pipe 301 when the water is full.

[0031] In the middle of one side of the flushing mechanism 2, a control mechanism 4 is arranged. The control mechanism 4 includes a vertical cavity 401 arranged on the outer side of the sampling cylinder 101. A communicating pipe 402 is connected below one side of the vertical cavity 401, and a first fixed partition 403 is fixed on one side inside the communicating pipe 402. A second fixed partition 404 is fixed in the middle of the vertical cavity 401.

[0032] In the middle above the second fixed partition 404, a support spring 405 is arranged, and a movable disk 406 is installed at the top of the support spring 405. A lifting rod 407 is fixed in the middle below the movable disk 406, and a rack plate 408 is installed on one side below the lifting rod 407. A mating gear 409 is meshed with the front side of the rack plate 408. The lifting rod 407 is slidably connected with the second fixed partition 404, and the movable disk 406 is elastically connected with the second fixed partition 404 through the support spring 405.

[0033] In the middle of the front end of the mating gear 409, a rotating connecting rod 410 is connected, and a rotating valve flap 411 is fixed at the front end of the rotating connecting rod 410. A pressing rod 412 is fixed in the middle above the movable disk 406. The mating gear 409 is rotatably connected with the vertical cavity 401, and the rotating connecting rod 410 penetrates through the first fixed partition 403. Through the control mechanism 4, automatic layered water intake can be carried out.

[0034] Through the vertical cavity 401, when the sampling cylinder 101 dives into the water for sampling, after diving to a certain depth, the water pressure will act on the movable disk 406, causing the movable disk 406 to move downward under the water pressure. At this time, the movable disk 406 will compress the support spring 405 to drive the lifting rod 407 and the rack plate 408 to move downward, so that the rack plate 408 drives the mating gear 409, the rotating connecting rod 410 and the rotating valve flap 411 to rotate, so that the rotating valve flap 411 can open and connect the liquid inlet pipe 501, enabling water to enter the liquid storage cavity 202 through the liquid inlet pipe 501 and the connecting pipe 402 to complete the water sampling until the liquid storage cavity 202 is full of water. At the same time, the elastic force of the support springs 405 in the four groups of vertical cavities 401 increases in turn, and the appropriate support spring 405 can be selected in advance according to the magnitude of the water pressure at the sampling depth during use. Thus, when the four groups of sampling cylinders 101 continue to dive, as the depth increases, the water pressure can sequentially press the movable disk 406 to enable the rotating valve flaps 411 of each group to open at different depths. By pressing the lever 412, the separate rotating valve flap 411 can be manually pressed downward after taking the water ashore to cooperate with the flushing mechanism 2 for liquid discharge and flushing. In this way, through the integrated design of multiple sampling cylinders 101 and water pressure grading triggering, the device can automatically open the corresponding liquid inlet pipes 501 in the depth order, such as 1 meter, 2 meters, 3 meters, when it is lowered once, and synchronously complete the multi-layer water body sampling, which can greatly reduce the working stay time and labor cost. At the same time, it also avoids the problems of high cost and difficult maintenance of using multiple sensors and power devices for controlled sampling, and significantly improves the efficiency, reliability and cost advantage of field operations.

[0035] To solve the technical problem that impurities are easily attached to the sampling water inlet and it is difficult to handle in time, resulting in a decrease in sampling efficiency or even inability to sample normally, as Figure 7 , Figure 9 and Figure 10 shown, the following preferred technical solutions are provided: Below one side of the control mechanism 4 is connected with a liquid inlet mechanism 5. The liquid inlet mechanism 5 includes a liquid inlet pipe 501 connected to the middle part below the connecting pipe 402. A liquid inlet filter screen 502 is installed at the bottom of the liquid inlet pipe 501, and the liquid inlet filter screen 502 is conical. In the middle part of the inner side of the liquid inlet pipe 501, a support frame 503 is fixedly installed. Below the middle part of the support frame 503 is connected with a rotating shaft 504, and the rotating shaft 504 is vertically rotatably connected to the support frame 503.

[0036] In the middle of the rotating shaft 504, a rotating sleeve 505 is rotatably arranged, and the rotating sleeve 505 is fixedly connected with the liquid inlet filter screen 502. At the lowermost part of the rotating shaft 504, an impeller 506 is installed. Below the rotating sleeve 505, a fixed bracket 507 is arranged, and the fixed bracket 507 is fixed on the surface of the rotating shaft 504. On one side of the fixed bracket 507, a brush scraper 508 is installed.

[0037] Through the impeller 506, when the sampling cylinder 101 continuously dives, the rotating shaft 504 can be utilized. Under the supporting and rotating action of the support frame 503 and the rotating sleeve 505, the impeller 506 is impacted by the diving water flow and rotates. As a result, the rotating shaft 504 drives the fixed bracket 507 and the brush scraper 508 to rotate together. The brush scraper 508 is attached to the surface of the liquid inlet filter screen 502. Therefore, when taking water, it can automatically rotate to clean and scrape the surface of the liquid inlet filter screen 502, preventing impurities such as waterweeds in the water from adhering to the surface of the liquid inlet filter screen 502 along with the water flow, which may affect the normal water intake. Moreover, when the impeller 506 rotates, it can form an upward water flow, which is beneficial to carry the impurities upward and reduce the possibility of adhesion. At the same time, the water flow acting on the surface of the conical liquid inlet filter screen 502 can also play a certain scouring role, thereby further improving the effect of impurity cleaning to ensure the effective flow of water intake.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for field ecological investigation, comprising a main body base (1) and a flushing mechanism (2), characterized in that: The flushing mechanism (2) for automatic flushing is arranged on the upper part of the main body seat (1), and the flushing mechanism (2) comprises a liquid collecting chamber (201), a liquid storage chamber (202), an inclined filter (203), an adsorption layer (204), a lifting and rotating rod (205), a connecting slot (206), a fixed card plate (207) and a receiving plate (208). The liquid storage chamber (202) is arranged below the liquid collecting chamber (201), and the inclined filter (203) is installed on the top of the liquid collecting chamber (201). The adsorption layer (204) is installed on the upper part of the liquid collecting chamber (201), and the lifting and rotating rod (205) passes through the middle of the liquid collecting chamber (201). The connecting slot (206) is arranged below the inclined filter (203). The fixed card plate (207) is fixed on the upper surface of the lifting and rotating rod (205), and the receiving plate (208) is installed on the bottom of the lifting and rotating rod (205); The flushing mechanism (2) further comprises an extension rod (209), a piston disc (210), a liquid lifting chamber (211), a vertical conduit (212), a flushing port (213) and a one-way valve head (214); an extension rod (209) is provided on one side of the middle portion of the lifting and rotating rod (205), and a piston disc (210) is installed at the bottom of the extension rod (209); a liquid lifting chamber (211) is provided at the lower portion of the piston disc (210), and the upper side of the liquid lifting chamber (211) is connected to the vertical conduit (212); the lower side of the vertical conduit (212) is connected to the flushing port (213), and a one-way valve head (214) is installed at the front end of the flushing port (213).

2. The auxiliary device for field ecological investigation according to claim 1, characterized in that: The main body seat (1) comprises a sampling tube (101), a pulling tube rope (102) and a partition plate (103); a pulling tube rope (102) is arranged in the middle of the upper part of the sampling tube (101), and a partition plate (103) is fixed in the middle of the inner side of the sampling tube (101); and four groups of the sampling tubes (101) are distributed in an annular manner with respect to the main body seat (1).

3. The auxiliary device for field ecological investigation according to claim 2, wherein: The lifting and rotating rod (205) is slidably connected to the partition plate (103) and the adsorption layer (204) respectively, and the receiving plate (208) is slidably connected to the liquid storage chamber (202), and the side surface of the receiving plate (208) is in contact with the inner surface of the liquid storage chamber (202), and the inclined filter screen (203) is connected to the adsorption layer (204) and the liquid collection chamber (201).

4. The auxiliary device for field ecological investigation according to claim 1, wherein: The extension rod (209) is connected to the liquid lifting chamber (211) in a lifting manner, and the piston plate (210) is connected to the liquid lifting chamber (211) in a sliding manner. The liquid lifting chamber (211) is connected to the vertical conduit (212), the flushing port (213) and the one-way valve head (214), and the flushing port (213) and the one-way valve head (214) are connected to the liquid storage chamber (202).

5. The auxiliary device for field ecological investigation according to claim 2, wherein: Above one side of the flushing mechanism (2), there is a ventilation mechanism (3) connected for exhausting air. The ventilation mechanism (3) includes an air pipe (301), a folding pipe (302), and a guide pipe (303). A folding pipe (302) is arranged in the middle of the air pipe (301), and a guide pipe (303) is connected above the air pipe (301). The air pipe (301) and the folding pipe (302) are communicated with the liquid storage cavity (202) and the lifting rope (102).

6. The auxiliary device for field ecological investigation according to claim 1, characterized in that: In the middle of one side of the flushing mechanism (2), there is a control mechanism (4) for automatic liquid feeding. The control mechanism (4) includes a vertical cavity (401), a connecting pipe (402), a first fixed partition (403), and a second fixed partition (404). A connecting pipe (402) is connected to the lower side of one side of the vertical cavity (401), and a first fixed partition (403) is fixed on one side inside the connecting pipe (402). A second fixed partition (404) is fixed in the middle of the vertical cavity (401).

7. An auxiliary device for field ecological investigation according to claim 6, characterized in that: The control mechanism (4) further includes a support spring (405), a movable disk (406), a lifting rod (407), a rack plate (408), and a mating gear (409). A support spring (405) is arranged in the middle above the second fixed partition (404), and a movable disk (406) is installed at the top of the support spring (405). A lifting rod (407) is fixed in the middle below the movable disk (406), and a rack plate (408) is installed on one side below the lifting rod (407). A mating gear (409) is meshed and arranged on the front side of the rack plate (408). The lifting rod (407) is slidably connected with the second fixed partition (404), and the movable disk (406) is elastically connected with the second fixed partition (404) through the support spring (405).

8. An auxiliary device for field ecological investigation according to claim 7, characterized in that: The control mechanism (4) further includes a rotating connecting rod (410), a rotating valve flap (411), and a pressing rod (412). A rotating connecting rod (410) is connected to the middle of the front end of the mating gear (409), and a rotating valve flap (411) is fixed at the front end of the rotating connecting rod (410). A pressing rod (412) is fixed in the middle above the movable disk (406). The mating gear (409) is rotatably connected with the vertical cavity (401), and the rotating connecting rod (410) penetrates through the first fixed partition (403).

9. An auxiliary device for field ecological investigation according to claim 6, characterized in that: Below one side of the control mechanism (4), there is a liquid inlet mechanism (5) for liquid inlet filtration. The liquid inlet mechanism (5) includes a liquid inlet pipe (501), a liquid inlet filter screen (502), a support frame (503), and a rotating shaft (504). A liquid inlet filter screen (502) is installed at the bottom of the liquid inlet pipe (501), and the liquid inlet filter screen (502) is conical. A support frame (503) is fixedly installed in the middle inside the liquid inlet pipe (501). A rotating shaft (504) is connected to the middle below the support frame (503), and the rotating shaft (504) is vertically and rotatably connected with the support frame (503).

10. The auxiliary device for field ecological investigation according to claim 9, characterized in that: The liquid inlet mechanism (5) further includes a rotating sleeve (505), an impeller (506), a fixed bracket (507) and a brush scraper (508). A rotating sleeve (505) is rotatably arranged in the middle of the rotating shaft (504), and the rotating sleeve (505) is fixedly connected to the liquid inlet filter screen (502). An impeller (506) is installed at the lowermost part of the rotating shaft (504). A fixed bracket (507) is arranged below the rotating sleeve (505), and the fixed bracket (507) is fixed on the surface of the rotating shaft (504). A brush scraper (508) is installed on one side of the fixed bracket (507).

Images