Rice field duckweed sample sampling device

Abstract

The utility model discloses a rice field duckweed sampling device, which relates to the technical field of rice field duckweed sampling and comprises a box body, pins are fixed at four corners of the bottom of the box body, mounting grooves are arranged on the front side and the rear side of the box body, a collecting frame is inserted into the two mounting grooves, and a reel is rotatably connected between the front inner wall and the rear inner wall of the collecting frame through a bearing. A stainless steel gauze element is wound on the reel, and one end of the stainless steel gauze element is fixedly installed on the reel. By pulling the push-pull rod, the stainless steel gauze element can be pulled to be unfolded in water below floating duckweed in the box body, after the box body is lifted to complete draining operation, the duckweed stays above the stainless steel gauze element, the rocker is rotated to pull the reel to wind the stainless steel gauze element, and the duckweed intercepted on the stainless steel gauze element can be scraped down by means of the silica gel scraper. The duckweed falls into a sampling bag sleeved below the box body, so that not only is the convenience of sampling the duckweed in the rice field improved, but also the actual demand of small-area fixed-point sampling in the rice field can be better met.

Description

Technical Field

[0001] The utility model relates to the technical field of paddy field duckweed sampling, in particular to a paddy field duckweed sampling device. Background Art

[0002] Rice is one of the most important food crops in my country, with a planting area of ​​about 29 million hectares all year round, accounting for more than 33% of the cultivated land. Duckweed is a common companion plant in rice fields, belonging to the subfamily of duckweed in the family Araceae of the order Alismatales. There are 4 genera and 10 species found in China, and they are widely distributed in my country. Unlike natural water bodies with large areas of water, such as rivers, lakes and ponds, when sampling duckweed growing in rice fields, the operating space is small due to the influence of the surrounding rice, and the water depth of the rice fields is shallow.

[0003] In the prior art, equipment and facilities such as salvage boats and fixed devices are mainly used to actively or fixedly collect duckweed on the water surface. After searching, the utility model patent with the announcement number CN218540633U discloses a duckweed salvage device for water cleaning, which realizes the salvage of duckweed on the water surface by setting a floating plate, a salvage frame and a flipping mechanism, and then squeezes out excess water through the storage frame, the salvage frame and the flipping mechanism, and reduces the load-bearing of the storage frame. The Chinese patent with the announcement number CN217651749U discloses a duckweed cleaning device for water conservancy projects, which collects duckweed through the feed port when in use, filters it through the filter box, slides it into the collection bin to collect it, and then removes it from the cleaning port for cleaning. However, the above equipment and devices are mainly used in flowing water environments such as rivers and rivers, and are not suitable for small-area fixed-point sampling of duckweed in slow-flowing water bodies in rice fields, and cannot accurately control the sampling area of ​​rice field water bodies. Utility Model Content

[0004] The purpose of the present application is to provide a rice field duckweed sampling device to solve the problem that the existing equipment and devices proposed in the above background technology are mainly used in flowing water environments such as rivers and waterways, and are not suitable for small-area fixed-point sampling of duckweed in slow-flowing water bodies in rice fields, and cannot accurately control the sampling area of ​​rice field water bodies.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a rice field duckweed sampling device, comprising a box body, pins are fixed at the four corners of the bottom of the box body, installation grooves are provided on the front and rear sides of the box body, collection frames are inserted in the two installation grooves, a reel is rotatably connected between the front and rear inner walls of the collection frame through a bearing, a stainless steel mesh is wrapped around the reel, one end of the stainless steel mesh is fixedly mounted on the reel, a push-pull rod is fixed to the other end of the stainless steel mesh, sliding grooves for the push-pull rod to slide are provided on the front and rear sides of the collection frame, a rocker is fixed to the front end of the reel, the rocker is located outside the collection frame, a silicone scraper is fixed between the front and rear inner walls of the collection frame, the silicone scraper is located above the reel, and the bottom of the silicone scraper is tightly fitted with the stainless steel mesh.

[0006] Furthermore, a guide plate is fixed between the front and rear inner walls of the collecting frame, the guide plate is located below the reel, and the silicone scraper and the guide plate are arranged in a "<" shape.

[0007] Furthermore, a first magnet is fixed on the left side of the push-pull rod, the first magnet is slidably matched with the inner wall of the slide slot, and a second magnet is embedded on the left side of the collection frame, and the first magnet is magnetically connected to the second magnet.

[0008] Furthermore, the outer thread of the box body is connected with bolts, and the box body and the collection frame are fixed by bolts.

[0009] Furthermore, a level ruler is fixedly installed on the top of the box.

[0010] Furthermore, two armrests are fixed on the top of the box, and the two armrests are arranged in parallel.

[0011] In summary, the technical effects and advantages of the utility model are:

[0012] 1. In the utility model, by pulling the push-pull rod, the stainless steel mesh can be pulled to unfold in the water below the floating duckweed inside the box. After the box is lifted to complete the drainage operation, the duckweed stays above the stainless steel mesh. The rocker is turned to pull the reel to reel in the stainless steel mesh. The duckweed trapped on the stainless steel mesh can be scraped off with the help of a silicone scraper, so that the duckweed falls into the sampling bag mounted under the box. This not only improves the convenience of sampling duckweed in rice fields, but also can better meet the actual needs of small-area fixed-point sampling in rice fields.

[0013] 2. In the utility model, with the help of four pins arranged under the box body, the sampling device can be fixed in the paddy field soil. By pressing the two handrails, the box body can be adjusted to a suitable height. The top of the box body can be adjusted to a horizontal position with reference to a horizontal ruler, so that the sampling of duckweed in the paddy field is more accurate.

[0014] 3. In the utility model, the first magnet on the push-pull rod is magnetically connected with the second magnet on the collection frame, so that the push-pull rod can pull the stainless steel mesh to unfold to the appropriate position and keep the position stable, ensuring that the duckweed is effectively intercepted. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a paddy field duckweed sampling device in an embodiment of the present application;

[0017] Figure 2 This is a diagram showing the connection relationship between the box and the pins in the embodiment of the present application;

[0018] Figure 3 This is a diagram showing the connection relationship between the collecting frame, the stainless steel mesh, the push-pull rod and the first magnet in the embodiment of the present application;

[0019] Figure 4 A diagram showing the connection relationship between the collecting frame, the push-pull rod and the second magnet in the embodiment of the present application;

[0020] Figure 5 It is a longitudinal cross-sectional view of the collection frame in the embodiment of the present application.

[0021] In the figure: 1. Box body; 2. Pin; 3. Mounting slot; 4. Collection frame; 5. Scroll; 6. Stainless steel mesh; 7. Push-pull rod; 8. Slide slot; 9. Rocker; 10. Silicone scraper; 11. Guide plate; 12. First magnet; 13. Second magnet; 14. Level ruler; 15. Handrail. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Example: Reference Figure 1-5The paddy field duckweed sampling device shown in the figure comprises a box body 1, pins 2 are fixed at the four corners of the bottom of the box body 1, and the sampling device can be fixed in the paddy field soil by means of the four pins 2 arranged below the box body 1, and the front and rear sides of the box body 1 are provided with mounting grooves 3, and the two mounting grooves 3 are inserted with collecting frames 4, and the external threads of the box body 1 are connected with bolts, and the box body 1 and the collecting frame 4 are fixed by bolts, and a reel 5 is rotatably connected between the front and rear inner walls of the collecting frame 4 through a bearing, and a stainless steel mesh 6 is wound on the reel 5, one end of the stainless steel mesh 6 is fixedly mounted on the reel 5, and a push-pull rod 7 is fixed to the other end of the stainless steel mesh 6, and the front and rear sides of the collecting frame 4 are provided with a slide groove 8 for the push-pull rod 7 to slide, and a rocker 9 is fixed to the front end of the reel 5, and the rocker 9 is located outside the collecting frame 4, and a silicone scraper 10 is fixed between the front and rear inner walls of the collecting frame 4, and the silicone scraper 10 is located above the reel 5, and the bottom of the silicone scraper 10 is tightly fitted with the stainless steel mesh 6;

[0024] By pulling the push-pull rod 7, the stainless steel mesh 6 can be pulled to unfold in the water below the floating duckweed inside the box 1. After the box 1 is lifted to complete the drainage operation, the duckweed stays above the stainless steel mesh 6. The rocker 9 is turned to pull the reel 5 to reel in the stainless steel mesh 6. The duckweed trapped on the stainless steel mesh 6 can be scraped off with the help of the silicone scraper 10, so that the duckweed falls into the sampling bag connected to the bottom of the box 1.

[0025] Among them, an inclined guide plate 11 is fixed between the front and rear inner walls of the collecting frame 4, the guide plate 11 is located below the reel 5, and the silicone scraper 10 and the guide plate 11 are arranged in a "<" shape. After the stainless steel mesh 6 is wound up, the top of the guide plate 11 will resist the first magnet 12. The guide plate 11 can be used to guide duckweed to pass over the reel 5 and the silicone scraper 10 with the water body, preventing the duckweed from being blocked by the reel 5 or the silicone scraper 10 and affecting the accuracy of the sampling value.

[0026] Among them, a first magnet 12 is fixed on the left side of the push-pull rod 7, and the first magnet 12 is slidably matched with the inner wall of the slide groove 8. A second magnet 13 is embedded on the left side of the inside of the collection frame 4, and the first magnet 12 is magnetically connected to the second magnet 13;

[0027] By means of magnetic connection between the first magnet 12 on the push-pull rod 7 and the second magnet 13 on the collecting frame 4, the push-pull rod 7 can pull the stainless steel mesh 6 to unfold to a proper position and keep the position stable, ensuring that the duckweed is effectively intercepted.

[0028] Among them, a level ruler 14 and two handrails 15 are fixedly installed on the top of the box 1. The two handrails 15 are arranged in parallel. By pressing the two handrails 15, the box 1 can be adjusted to a suitable height. The top of the box 1 can be adjusted to a horizontal position with reference to the level ruler 14, so that the sampling of duckweed in the rice field is more accurate.

[0029] How this utility works:

[0030] Select a suitable location in the paddy field, place the box 1 in the paddy field, insert the four pins 2 into the paddy field soil layer, adjust the top of the box 1 to be in a horizontal state with reference to the level ruler 14, hold the two handrails 15, push the box 1 down, make the paddy field water layer about 2-3cm above the collection frame 4, keep the top of the box 1 always in a horizontal state, and after the water surface is stable, slowly pull the push-pull rod 7, so that the push-pull rod 7 drives the stainless steel mesh 6 to be fully unfolded under the duckweed, until the first magnet 12 on the push-pull rod 7 and the second magnet 13 attract Together, the box 1 is moved out of the water as a whole through the two handrails 15 above the box 1. After the water mixed with the duckweed is basically drained away, the duckweed is trapped above the stainless steel mesh 6. A sampling bag is put on the bottom of the box 1, and the joystick 9 is shaken at a constant speed so that the reel 5 reels the stainless steel mesh 6 to the initial position. During this process, the silicone scraper 10 can scrape the duckweed on the stainless steel mesh 6 into the sampling bag. Finally, the staff uses their hands to scrape the duckweed adhered to the surface of the silicone scraper 10 into the sampling bag, thus completing a sampling process.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A paddy field duckweed sampling device, comprising a housing (1), characterized in that: Pins (2) are fixed at the four corners of the bottom of the box (1), and mounting grooves (3) are provided on the front and rear sides of the box (1). A collection frame (4) is inserted into the two mounting grooves (3). A reel (5) is rotatably connected between the front and rear inner walls of the collection frame (4) via a bearing. A stainless steel mesh (6) is wound around the reel (5). One end of the stainless steel mesh (6) is fixedly mounted on the reel (5), and a push-pull rod (7) is fixed to the other end of the stainless steel mesh (6). Slide grooves (8) for sliding the push-pull rod (7) are provided on the front and rear sides of the collection frame (4). A rocker (9) is fixed at the front end of the reel (5), and the rocker (9) is located outside the collection frame (4). A silicone scraper (10) is fixed between the front and rear inner walls of the collection frame (4), and the silicone scraper (10) is located above the reel (5), and the bottom of the silicone scraper (10) is tightly fitted with the stainless steel mesh (6).

2. A paddy field duckweed sampling device according to claim 1, characterized in that: A guide plate (11) is fixed between the front and rear inner walls of the collecting frame (4), the guide plate (11) is located below the reel (5), and the silicone scraper (10) and the guide plate (11) are arranged in a "<" pattern.

3. A paddy field duckweed sampling device according to claim 1, characterized in that: A first magnet (12) is fixed on the left side of the push-pull rod (7), the first magnet (12) slidingly cooperates with the inner wall of the slide groove (8), and a second magnet (13) is embedded on the left side inside the collection frame (4), the first magnet (12) and the second magnet (13) are magnetically connected.

4. A paddy field duckweed sampling device according to claim 1, characterized in that: The outer thread of the box body (1) is connected with bolts, and the box body (1) and the collection frame (4) are fixed by bolts.

5. A paddy field duckweed sampling device according to claim 1, characterized in that: A level ruler (14) is fixedly mounted on the top of the box (1).

6. A paddy field duckweed sampling device according to claim 1, characterized in that: Two handrails (15) are fixed on the top of the box body (1), and the two handrails (15) are arranged in parallel.

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