Continuous nematode extraction device

By designing a continuous nematode extraction device with a stirring chamber and a filtering chamber, and using motor-driven stirring blades and multi-stage filter plates, the problem of low efficiency in existing devices has been solved, achieving efficient and convenient nematode extraction.

CN223995877UActive Publication Date: 2026-03-17SHANDONG LUDEDI PHARMACEUTICAL RESEARCH & DEVELOPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing nematode extraction devices are inefficient, have insufficient control over stirring speed, and are difficult to effectively collect filtered root-knot nematodes.

Method used

A continuous nematode extraction device including a stirring chamber and a filtering chamber was designed. It employs a stirring assembly and a filtering and collecting assembly. The device uses a motor-driven rotating shaft and stirring blades for efficient stirring, and utilizes filter plates one and two for multi-stage filtration. Combined with detachable filter plates and rinsing with clean water, it achieves efficient extraction of nematodes.

Benefits of technology

It achieves efficient stirring and multi-stage filtration, simplifies the nematode collection process, improves extraction efficiency and purity, and is simple and convenient to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a continuous extraction device for nematodes, which belongs to the technical field of nematodes and comprises a box body, a stirring cavity is arranged above the box body, a filtering cavity is arranged below the box body, a stirring component is connected onto the stirring cavity, and a filtering and collecting component is connected into the filtering cavity. By starting the stirring assembly, a mixed solution can be rapidly stirred, the stirring efficiency is improved, the stirring speed can be controlled, the mixed soil mixed solution is filtered for the first time through the second filter plate and then filtered for the second time through the first filter plate, and the top end of the first filter plate is provided with nematode and impurities with particles equivalent to the nematode in size; then the first filter plate can be taken out and washed with clear water, washing liquid is collected and settled for a period of time, nematode suspension liquid with high purity can be obtained, and operation is easy and convenient.
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Description

Technical Field

[0001] This utility model relates to the field of nematode technology, and in particular to a continuous nematode extraction device. Background Technology

[0002] Root-knot nematodes are highly specialized omnivorous plant pathogenic nematodes that cause significant damage to plants. Before conducting research on root-knot nematodes, it is necessary to purify them from plant roots.

[0003] Most commonly used nematode extraction devices rely on manual operation to agitate the soil mixture. This method is not only inefficient but also has significant limitations in controlling the agitation speed. Even more inconvenient is that once the filtration process is complete, these devices often make it difficult for users to easily collect the filtered root-knot nematodes, causing numerous problems in practical operation. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a continuous nematode extraction device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: It includes a housing, with a stirring chamber at the top and a filtering chamber at the bottom. A stirring assembly is connected to the stirring chamber, and a filtering and collecting assembly is connected inside the filtering chamber. The filtering and collecting assembly includes a first filter plate and a second filter plate. The first filter plate is located below the second filter plate. Supporting strips are in contact with both sides of the bottom surface of the first filter plate and both sides of the bottom surface of the second filter plate. All four supporting strips are fixedly connected to the inner wall of the filtering chamber. L-shaped pressure plates are in contact with both sides of the top surface of the first filter plate and both sides of the top surface of the second filter plate. Connecting assemblies are connected between the four L-shaped pressure plates and the inner wall of the filtering chamber.

[0006] As a further description of the above technical solution:

[0007] The stirring assembly includes cylinders fixed to both sides of the top surface of the box. The free ends of the two cylinders are fixed to a top plate. The bottom surface of the top plate is fixed to a motor. The output end of the motor is fixed to a rotating shaft. The bottom end of the rotating shaft penetrates the top wall of the box and extends into the stirring chamber, where multiple stirring blades are fixed.

[0008] As a further description of the above technical solution:

[0009] The top wall of the box has a through hole for the rotating shaft to slide through.

[0010] As a further description of the above technical solution:

[0011] The connecting assembly includes an adjustment groove formed in the inner wall of the filter chamber, a slide rod fixedly connected in the adjustment groove, a slider slidably connected on the slide rod, one end of the slider being fixedly connected to a corresponding L-shaped pressure plate, a handle being fixedly connected to the L-shaped pressure plate, and a spring being sleeved on the slide rod, with both ends of the spring being fixedly connected to the top surface of the adjustment groove and the top surface of the slider, respectively.

[0012] As a further description of the above technical solution:

[0013] The sieve holes of filter plate one are smaller than those of filter plate two.

[0014] As a further description of the above technical solution:

[0015] A feed pipe is connected between the stirring chamber and the filtering chamber, and a valve is connected to the feed pipe.

[0016] As a further description of the above technical solution:

[0017] The top wall of the box is connected to an inlet pipe that communicates with the inside of the mixing chamber. A sealing cap is connected to the inlet pipe. A discharge pipe that communicates with the filter chamber is connected to the lower side of the box. A sealing cap is connected to the discharge pipe. A door is connected to one side of the filter chamber.

[0018] This utility model has the following beneficial effects:

[0019] 1. In this utility model, by turning on the stirring component, the mixture can be stirred quickly, which improves the stirring efficiency and allows for control of the stirring speed.

[0020] 2. In this utility model, the soil mixture after mixing is filtered once through filter plate two, and then filtered a second time through filter plate one. The top of filter plate one contains nematodes and impurities with particles of similar size to the nematodes. Afterwards, filter plate one can be removed, rinsed with clean water, and the rinsing liquid can be collected and allowed to settle for a period of time to obtain a nematode suspension with high purity. The operation is simple and convenient. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of a nematode continuous extraction device proposed in this utility model;

[0022] Figure 2 This utility model proposes a continuous nematode extraction device. Figure 1 Enlarged view at point A;

[0023] Figure 3 This is an external schematic diagram of a continuous nematode extraction device proposed in this utility model. Figure 1 '

[0024] Figure 4This is an external schematic diagram of a continuous nematode extraction device proposed in this utility model. Figure 2 .

[0025] Legend:

[0026] 1. Box body; 2. Mixing chamber; 3. Cylinder; 4. Top plate; 5. Motor; 6. Rotating shaft; 7. Feed pipe; 8. Mixing blades; 9. Discharge pipe; 10. Filter chamber; 11. Filter plate one; 12. Support bar; 13. L-shaped pressure plate; 14. Handle; 15. Adjustment groove; 16. Slide rod; 17. Spring; 18. Sliding block; 19. Box door; 20. Discharge pipe; 21. Filter plate two. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Reference Figures 1-4 An embodiment of this utility model includes a housing 1, a stirring chamber 2 at the top of the housing 1, and a filtering chamber 10 at the bottom of the housing 1. A stirring assembly is connected to the stirring chamber 2. By activating the stirring assembly, the mixture can be stirred quickly, improving the stirring efficiency and allowing control of the stirring speed. A filtering and collecting assembly is connected inside the filtering chamber 10. The filtering and collecting assembly includes a first filter plate 11 and a second filter plate 21. The first filter plate 11 is located below the second filter plate 21. Supporting strips 12 are in contact with both sides of the bottom surface of the first filter plate 11 and both sides of the bottom surface of the second filter plate 21. All four support strips 12 are fixedly connected to the inner wall of the filtering chamber 10. L-shaped pressure plates 13 are in contact with both sides of the top surface of the first filter plate 11 and both sides of the top surface of the second filter plate 21. Connecting assemblies are connected between the four L-shaped pressure plates 13 and the inner wall of the filtering chamber 10.

[0029] The stirring assembly includes cylinders 3 fixed to both sides of the top surface of the housing 1. A top plate 4 is fixed to the free ends of the two cylinders 3. A motor 5 is fixed to the bottom surface of the top plate 4. A rotating shaft 6 is fixed to the output end of the motor 5. The bottom end of the rotating shaft 6 penetrates the top wall of the housing 1 and extends into the stirring chamber 2, where multiple stirring blades 8 are fixedly attached. A through hole is provided in the top wall of the housing 1 for the rotating shaft 6 to slide through. The connecting assembly includes an adjusting groove 15 formed in the inner wall of the filter chamber 10. A sliding rod 16 is fixedly attached to the adjusting groove 15. A slider 18 is slidably connected to the sliding rod 16. One end of the slider 18 is fixedly connected to a corresponding L-shaped pressure plate 13. A handle 14 is fixedly connected to the top of the slide bar 16, and a spring 17 is sleeved on the slide bar 16. The two ends of the spring 17 are fixedly connected to the top surface of the adjusting groove 15 and the top surface of the slider 18, respectively. The sieve holes of the first filter plate 11 are smaller than the sieve holes of the second filter plate 21. A discharge pipe 9 is connected between the stirring chamber 2 and the filtering chamber 10. A valve is connected to the discharge pipe 9. The top wall of the box body 1 is connected to the inlet pipe 7, which communicates with the inside of the stirring chamber 2. A sealing cover 1 is connected to the inlet pipe 7. A discharge pipe 20, which communicates with the filtering chamber 10, is connected to the bottom side of the box body 1. A sealing cover 2 is connected to the discharge pipe 20. A box door 19 is connected to one side of the filtering chamber 10.

[0030] Working principle: Soil and water can be added to the mixing chamber 2 through the feed pipe 7. The motor 5 is turned on, and its speed can be controlled. The rotation of the motor 5 drives the rotating shaft 6, which in turn drives the mixing blades 8, thus rapidly mixing the mixture. During mixing, the cylinder 3 is activated, causing the top plate 4 to rise and fall. The rise and fall of the top plate 4, in turn, causes the motor 5 and the rotating shaft 6 to rise and fall, resulting in the mixing blades 8 moving up and down within the mixing chamber 2, further improving mixing efficiency. After mixing is complete, the valve is opened, and the mixture is discharged into the filter chamber 10 through the discharge pipe 9. The mixed soil solution is then filtered. The filter undergoes a first filtration through filter plate 21, followed by a second filtration through filter plate 11. After filtration, larger impurities remain above filter plate 21, while smaller impurities flow down through filter plate 11 and are discharged through discharge pipe 20. The top of filter plate 11 contains nematodes and impurities of similar size to the nematodes. Open the chamber door 19 and push the handle 14 upwards, causing the handle 14 to move the L-shaped pressure plate 13 upwards, separating it from filter plate 11. Filter plate 11 can then be removed, rinsed with clean water, and the rinsing liquid collected and allowed to settle for a period of time to obtain a highly purified nematode suspension. The operation is simple and convenient.

[0031] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The detailed description of known functions and components is omitted in the specific implementation of this disclosure. In order to ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A nematode continuous extraction apparatus comprising a housing (1) characterised in that: The upper part of the box (1) is provided with a stirring cavity (2), the lower part of the box (1) is provided with a filter cavity (10), the stirring cavity (2) is connected with a stirring assembly, and the filter cavity (10) is connected with a filter collection assembly. The filter collection assembly comprises filter plate one (11) and filter plate two (21), the filter plate one (11) is located below the filter plate two (21), the bottom surface of the filter plate one (11) and the bottom surface of the filter plate two (21) are in contact with support strips (12), the four support strips (12) are fixedly connected with the inner wall of the filter cavity (10), and the top surface of the filter plate one (11) and the top surface of the filter plate two (21) are in contact with L-shaped pressing plates (13).

2. A continuous nematode extraction apparatus according to claim 1, wherein: The stirring assembly comprises air cylinders (3) fixedly connected to the top surface of the box (1), the free ends of the two air cylinders (3) are fixedly connected with a top plate (4), the bottom surface of the top plate (4) is fixedly connected with a motor (5), the output end of the motor (5) is fixedly connected with a rotating shaft (6), and the bottom end of the rotating shaft (6) penetrates through the top wall of the box (1), extends into the stirring cavity (2) and is fixedly connected with a plurality of stirring blades (8).

3. A continuous nematode extraction apparatus according to claim 2, wherein: The top wall of the box (1) is provided with a through hole for the rotating shaft (6) to slide through.

4. The apparatus of claim 1, wherein: The connecting assembly comprises an adjusting groove (15) formed in the inner wall of the filter cavity (10), a sliding rod (16) is fixedly connected in the adjusting groove (15), a sliding block (18) is slidably connected on the sliding rod (16), one end of the sliding block (18) is fixedly connected with the corresponding L-shaped pressing plate (13), a handle (14) is fixedly connected on the L-shaped pressing plate (13), a spring (17) is sleeved on the sliding rod (16), and the two ends of the spring (17) are fixedly connected with the top surface of the adjusting groove (15) and the top surface of the sliding block (18) respectively.

5. The apparatus of claim 1, wherein: The screen hole of the filter plate one (11) is smaller than the screen hole of the filter plate two (21).

6. The apparatus of claim 1, wherein: The stirring cavity (2) and the filter cavity (10) are connected with a feeding pipe (9), and the feeding pipe (9) is connected with a valve.

7. The apparatus of claim 2, wherein: The top wall of the box (1) is connected with a feeding pipe (7) in communication with the inside of the stirring cavity (2), the feeding pipe (7) is connected with a sealing cover one, the lower part of one side of the box (1) is connected with a discharging pipe (20) in communication with the filter cavity (10), the discharging pipe (20) is connected with a sealing cover two, and one side of the filter cavity (10) is connected with a box door (19).