Device for concentrating worm eggs of terminal host animal excrement of field echinococcus
By using a filter screen combined with a stirring handle to remove large particles and hair in the Echinococcus tapeworm egg concentration device, the problems of spillage and clogging of the mixed solution were solved, achieving efficient egg concentration and environmental protection.
Patent Information
- Application Number
- CN202520539021.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Existing technologies for the concentration of Echinococcus tapeworm eggs suffer from problems such as spillage of the mixed solution polluting the environment and filter clogging leading to low efficiency.
The system uses a first and second filter screen for filtration, combined with a stirring handle to drive a cleaning element, which removes large particles to the waste collection pipe to prevent clogging. It also uses a stirring rod to collect hair and regulate the flow rate of the mixture.
It improves the efficiency of insect egg concentration, reduces time consumption, avoids environmental pollution, and ensures the accuracy of detection data.
Smart Images
Figure CN223966343U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of biological sample processing equipment, specifically relating to a device for concentrating eggs from the feces of Echinococcus tapeworm definitive host animals in the wild. Background Technology
[0002] Echinococcosis is a serious zoonotic parasitic disease caused by the larvae of the genus Echinococcus, which parasitize humans and animals. It poses a significant threat to human health and hinders livestock development. Dogs, foxes, and wild canine carnivores are important definitive hosts for echinococcosis, primarily living in endemic wild environments. Generally, the Echinococcus tapeworm parasitizes the terminal small intestine of the definitive host. When the gravid segments mature, they rupture and release eggs, which tend to adhere to and distribute on the surface and superficial layers of feces. However, their distribution is uneven, and collecting fresh fecal samples in the wild is often difficult. Most collected fecal samples have been in the wild for several days to tens of days. During this time, the fecal samples are affected by wind, rain, and insect infestation, which can reduce or destroy the number of eggs, potentially leading to inaccurate infection detection or monitoring data. Therefore, it is necessary to concentrate the eggs in the feces after sample collection.
[0003] In existing technologies, to increase the collection of Echinococcus granulosus eggs, workers often first dissolve a large weight of fecal samples from the definitive host animal, and then concentrate the Echinococcus granulosus eggs in the mixture by filtering it through multiple layers of gauze. While this method can concentrate the Echinococcus granulosus eggs, it has the following problems during operation: First, during the egg concentration process through multiple layers of gauze, the mixture of fecal sample and water is very easy to spill onto the workbench, causing pollution to the workbench and the surrounding environment. Second, particulate matter in the mixture can clog the mesh of the gauze, resulting in a very slow filtration speed, which significantly increases the time spent on egg concentration and reduces the efficiency of egg concentration. Furthermore, once the mesh is clogged, the eggs cannot enter the separation liquid, making it impossible to effectively collect the eggs and causing deviations in subsequent test data.
[0004] To address the aforementioned problems, this application proposes a device for accumulating eggs in the feces of Echinococcus tapeworm definitive host animals in the wild. Utility Model Content
[0005] The purpose of this invention is to provide a device for concentrating eggs from the feces of Echinococcus tapeworm definitive host animals in the wild. While filtering the mixture through a first and second filter, a cleaning element is rotated by a stirring handle. This allows the cleaning element to promptly remove large particles accumulated on the surface of the first filter and move them into the waste collection tube, preventing blockage of the first filter and spillage of the mixture that could pollute the surrounding environment. This improves the efficiency of egg concentration and provides a convenient tool for pre-processing biological samples before experiments in related fields.
[0006] The specific technical solution adopted by this utility model is as follows:
[0007] A device for concentrating fecal eggs of Echinococcus tapeworm definitive host animals in the wild includes a sleeve. A first filter and a second filter are sequentially fixed inside the sleeve from top to bottom. A guide tube is fixed to the outside of the first filter, and the guide tube and the inside of the sleeve are interconnected. A waste collection tube is detachably fixed to the lower end of the guide tube. A mixing tube is rotatably connected to the upper end of the sleeve. A drive shaft is rotatably connected inside the mixing tube. A cleaning element is fixed to the lower end of the drive shaft, above the first filter. The cleaning element is adapted to the sleeve. The horizontal cross-sectional shape of the cleaning element is involute, and the bottom of the cleaning element fits against the top of the first filter. A separation tube is threaded to the lower end of the sleeve.
[0008] In a preferred embodiment, a stirring handle is detachably sleeved at the upper end of the mixing tube, a stirring shaft is fixed at the lower end of the stirring handle, a plurality of stirring rods are fixed on the outer side of the stirring shaft, a snap-fit hole is provided inside the stirring shaft, an anti-rotation surface is provided inside the snap-fit hole, a chamfered surface is provided on the outer side of the drive shaft and inside the mixing tube, and the drive shaft, the stirring shaft, the anti-rotation surface and the chamfered surface are compatible.
[0009] In a preferred embodiment, a plurality of collecting rods are fixed to the outside of the stirring rod, and the plurality of collecting rods are arranged in a ring array on the outside of the stirring rod.
[0010] In a preferred embodiment, a baffle plate is fixed at the upper end of the sleeve and at the upper end of the cleaning element. The baffle plate has a first throttling orifice inside, and a second throttling orifice is opened at the bottom of the mixing tube. The first throttling orifice and the second throttling orifice are adapted to each other. In the initial state, the first throttling orifice and the second throttling orifice are far apart from each other.
[0011] In a preferred embodiment, an arc-shaped clearance groove is provided at the upper end of the outer side of the sleeve, and multiple opening degree marks are provided on the outer side of the sleeve. An indicator rod is fixed on the outer side of the mixing tube, and the indicator rod and the arc-shaped clearance groove, as well as the indicator rod and the opening degree marks, are mutually compatible.
[0012] In a preferred embodiment, an observation window is provided on the outer side of the waste collection pipe, and an observation plate is fixed inside the observation window. The observation plate is made of acrylic.
[0013] In a preferred embodiment, the first filter screen has a plurality of first filter holes inside, and the second filter screen has a plurality of second filter holes inside, wherein the diameter of the second filter holes is smaller than the diameter of the first filter holes.
[0014] In a preferred embodiment, the upper end of the stirring handle is provided with a rotation direction indicator, and the rotation direction indicator is opposite to the opening direction of the cleaning element.
[0015] The technical effects achieved by this utility model are as follows:
[0016] This invention, by rotating the stirring handle, can synchronously rotate the cleaning element, stirring shaft, and stirring rod. While the first and second filters filter the mixture, the cleaning element cleans large particles accumulated on the upper part of the first filter and moves them into the waste collection tube, preventing large particles from clogging the first filter. This allows the device to clean the surface of the first filter in a timely manner, effectively improving the efficiency of insect egg concentration and reducing the time spent on concentration. Furthermore, during the concentration process, it effectively prevents the mixture from overflowing and polluting the workbench and surrounding environment, providing a convenient tool for the pretreatment of biological samples before experiments in related fields.
[0017] This invention features a collection rod on the outside of the stirring rod. During the stirring process of the mixture by rotating the stirring handle, the collection rod can collect animal hair in the mixture, thus preventing the hair from clogging the first and / or second filters.
[0018] This invention allows for precise control of the flow rate of the mixed liquid as it flows from the inside of the mixing tube into the inside of the sleeve, through the cooperation of the indicator rod and the opening mark, making it convenient for workers to use. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a rear view of the overall structure of this utility model;
[0021] Figure 3 This is a cross-sectional view of the overall structure of this utility model in the vertical direction;
[0022] Figure 4 This is a cross-sectional view of the overall structure of this utility model in the horizontal direction;
[0023] Figure 5 This is an exploded view of the overall structure of this utility model;
[0024] Figure 6 This is a schematic diagram of the transmission shaft and cleaning element of this utility model;
[0025] Figure 7 This is a schematic diagram of the structure of the stirring shaft and stirring rod of this utility model;
[0026] Figure 8This is a schematic diagram of the structure of the mixing tube of this utility model.
[0027] Figure 9 This is a schematic diagram of the structure of the sleeve of this utility model.
[0028] Figure 10 This diagram illustrates the rotation direction of the cleaning element and the movement direction of large particles in this invention.
[0029] The attached diagram lists the components represented by each number as follows:
[0030] 10. Sleeve; 11. First filter screen; 12. Second filter screen; 13. Guide tube; 14. Waste collection tube; 15. Mixing tube; 16. Drive shaft; 17. Cleaning element; 18. Separation tube; 19. Stirring handle; 20. Stirring shaft; 21. Stirring rod; 22. Snap-fit hole; 23. Baffle plate; 24. First throttling orifice; 25. Second throttling orifice; 26. Arc-shaped clearance groove; 27. Indicator rod; 28. Observation plate. Detailed Implementation
[0031] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0032] like Figures 1 to 5 As shown, a device for concentrating fecal eggs of Echinococcus tapeworm definitive host animals in the wild includes a sleeve 10. A first filter 11 and a second filter 12 are sequentially fixed inside the sleeve 10 from top to bottom. A guide tube 13 is fixed to the outside of the first filter 11, and the guide tube 13 and the inside of the sleeve 10 are interconnected. A waste collection tube 14 is detachably fixed to the lower end of the guide tube 13. A mixing tube 15 is rotatably connected to the upper end of the sleeve 10 in a transition fit. A drive shaft 16 is rotatably connected inside the mixing tube 15, and a sealing element is provided between the mixing tube 15 and the drive shaft 16. A cleaning element 17 is fixed to the lower end of the drive shaft 16, located above the first filter 11. The cleaning element 17 is adapted to the sleeve 10. The horizontal cross-sectional shape of the cleaning element 17 is an involute, and the bottom of the cleaning element 17 is in contact with the top of the first filter 11. A separation tube 18 is threadedly connected to the lower end of the sleeve 10.
[0033] It should be noted that the volume inside the separation tube 18 is larger than the volume inside the mixing tube 15. This is to prevent the mixture from not being able to fully enter the separation tube 18 under special circumstances, which would cause the mixture to overflow into the waste collection tube 14. At the same time, a sealing cap is used in conjunction with the separation tube 18. The sealing cap and the separation tube 18 are detachably threaded. After the insect eggs have been concentrated, the sealing cap seals the separation tube 18, which can prevent the insect eggs collected inside the separation tube 18 from spilling out.
[0034] Furthermore, the end of the cleaning element 17 away from the drive shaft 16 is always in contact with the inner wall of the sleeve 10, and the outermost sidewall of the cleaning element 17 is located outside the mixing tube 15 in the vertical direction. With this configuration, when the mixture inside the mixing tube 15 enters the sleeve 10, the cleaning element 17 guides and directs the mixture in the vertical direction, preventing the mixture from flowing into the guide tube 13.
[0035] In a preferred embodiment, such as Figure 3 , Figure 6 and Figure 7 As shown, a stirring handle 19 is detachably sleeved at the upper end of the mixing tube 15. Several anti-slip textures are provided on the outer side of the stirring handle 19. A stirring shaft 20 is fixed at the lower end of the stirring handle 19. Multiple stirring rods 21 are fixed on the outer side of the stirring shaft 20. A snap-fit hole 22 is provided inside the stirring shaft 20. An anti-rotation surface is provided inside the snap-fit hole 22. A chamfered surface is provided on the outer side of the drive shaft 16 and inside the mixing tube 15. The drive shaft 16, the stirring shaft 20, the anti-rotation surface, and the chamfered surface are compatible.
[0036] Here, the mixing tube 15 and the stirring handle 19 are fitted with a clearance to reduce the friction between them.
[0037] In this embodiment, anti-slip textures are provided on the outer side of the stirring handle 19 to increase the friction between the operator and the stirring handle 19. At the same time, through the cooperation of the anti-rotation surface and the chamfered surface, when the stirring handle 19 is rotated, the stirring shaft 20 and the transmission shaft 16 are driven to rotate synchronously by the stirring handle 19, avoiding relative rotation between the stirring shaft 20 and the transmission shaft 16. This allows the driving force applied by the operator to the stirring handle 19 to be transmitted to the cleaning element 17 through the transmission shaft 16 and the stirring shaft 20, thereby driving the cleaning element 17 to rotate.
[0038] In a preferred embodiment, such as Figure 7 As shown, multiple collecting rods are fixed to the outside of the stirring rod 21, and the multiple collecting rods are arranged in a ring array on the outside of the stirring rod 21.
[0039] In this embodiment, when the operator rotates the stirring handle 19, the stirring handle 19 can drive the stirring shaft 20, stirring rod 21 and collecting rod to rotate synchronously. The stirring rod 21 stirs the fecal mixture inside the mixing tube 15, and the collecting rod can collect the hair in the mixture. At the same time, after removing the stirring handle 19 from the top of the mixing tube 15, the operator can easily clean the hair collected on the collecting rod.
[0040] In a preferred embodiment, such as Figures 8 to 9 As shown, a baffle plate 23 is fixed at the upper end of the sleeve 10 and at the upper end of the cleaning element 17. A first throttling orifice 24 is opened at the end of the baffle plate 23 away from the guide tube 13, and a second throttling orifice 25 is opened at the bottom of the mixing tube 15. The first throttling orifice 24 and the second throttling orifice 25 are adapted to each other. In the initial state, the first throttling orifice 24 and the second throttling orifice 25 are far apart from each other. When the first throttling orifice 24 and the second throttling orifice 25 are far apart from each other, the mixture inside the mixing tube 15 cannot flow into the sleeve 10. When the first throttling orifice 24 and the second throttling orifice 25 partially overlap or completely overlap, the mixture inside the mixing tube 15 can flow into the sleeve 10.
[0041] Here, by setting up the above scheme, the speed at which the mixture flows into the sleeve 10 can be controlled. During the process of filtering the mixture through the first filter screen 11 and the second filter screen 12, the flow of the mixture will be greatly reduced. By cooperating with the first throttling hole 24 and the second throttling hole 25, the flow speed of the mixture can be controlled, and the mixture can be prevented from accumulating inside the sleeve 10.
[0042] In a preferred embodiment, such as Figures 8 to 9 As shown, an arc-shaped clearance groove 26 is provided at the upper end of the outer side of the sleeve 10, and multiple opening marks are provided on the outer side of the sleeve 10. An indicator rod 27 is fixed on the outer side of the mixing tube 15, and the indicator rod 27 and the arc-shaped clearance groove 26, as well as the indicator rod 27 and the opening marks, are all compatible with each other. Through the cooperation of the opening marks and the indicator rod 27, the flow rate of the mixture can be precisely controlled when the mixture flows from the inside of the mixing tube 15 to the inside of the sleeve 10.
[0043] Here, the opening indicator is used to indicate the flow rate of the mixture from the inside of the mixing tube 15 into the inside of the sleeve 10. The specific correspondence can be adjusted according to the actual test, and will not be elaborated further here.
[0044] In a preferred embodiment, such as Figure 1As shown, an observation window is provided on the outside of the waste collection pipe 14, and an observation plate 28 is fixed inside the observation window. The observation plate 28 is made of one of the following materials: PC, tempered glass, acrylic or other transparent materials. Preferably, in this embodiment, the material of the observation plate 28 is acrylic. The setting of the observation plate 28 makes it convenient for staff to observe the amount of large particles collected inside the waste collection pipe 14.
[0045] In a preferred embodiment, the first filter screen 11 has a plurality of first filter holes inside, and the second filter screen 12 has a plurality of second filter holes inside, the diameter of the second filter holes being smaller than the diameter of the first filter holes.
[0046] Furthermore, the diameter of Echinococcus tapeworm eggs is generally between 30μm and 40μm, and they are approximately spherical. In this embodiment, the pore size of the first filter pore is 120μm to 150μm, and the pore size of the second filter pore is 60μm to 100μm.
[0047] In a preferred embodiment, such as Figures 1 to 2 As shown, the upper end of the stirring handle 19 is provided with a rotation direction indicator, and the rotation direction indicator is opposite to the opening direction of the cleaning element 17.
[0048] It should be noted that the rotation direction markings are used to indicate the rotation direction of the cleaning element 17 and the stirring handle 19. For details, please refer to [link / reference needed]. Figure 10 As shown, with the above scheme, the cleaning element 17 can drive the large particles accumulated on the surface of the first filter screen 11 to move towards the guide tube 13 and enter the waste collection tube 14.
[0049] The working principle of this utility model is as follows:
[0050] The collected fecal samples and water are sequentially added into the mixing tube 15 for mixing. The stirring shaft 20 is sleeved onto the outside of the drive shaft 16 through the snap-fit hole 22, ensuring that the anti-rotation surface inside the snap-fit hole 22 and the chamfered surface on the outside of the drive shaft 16 are in contact. Holding the mixing tube 15 still, the stirring handle 19 is rotated. The stirring handle 19 drives the stirring shaft 20, stirring rod 21, and collecting rod to rotate synchronously. The stirring rod 21 stirs and mixes the fecal samples and water inside the mixing tube 15, causing Echinococcus tapeworm eggs to separate from the fecal samples. Simultaneously, during the rotation of the stirring rod 21 and the collecting rod, hair will wrap around the outside of the collecting rod, which collects the animal hair in the mixture. To prevent animal hair from entering the first filter screen 11 and / or the second filter screen 12, after thorough mixing, hold the sleeve 10 still and rotate the mixing tube 15 so that the mixing tube 15 rotates relative to the sleeve 10. This rotation of the mixing tube 15 drives the second throttling orifice 25 to rotate, causing the second throttling orifice 25 and the first throttling orifice 24 to overlap vertically. Adjusting the opening of the first throttling orifice 24 and the second throttling orifice 25 using the indicator rod 27 and the opening mark regulates the flow rate of the mixture. This allows the mixture inside the mixing tube 15 to flow into the sleeve 10 and be filtered through the first filter screen 11. The liquid and insect eggs in the mixture are then filtered sequentially through the first filter screen 11 and the second filter screen 12. The particles then flow into the separation tube 18, where insect eggs are concentrated. Large particles of debris accumulate on the surface of the first filter screen 11. Continuing to rotate the stirring handle 19 drives the stirring shaft 20 and the drive shaft 16 to rotate. The drive shaft 16 is fixedly connected to the cleaning element 17, causing the cleaning element 17 to rotate synchronously. The cleaning element 17 cleans the large particles accumulated on the upper part of the first filter screen 11, causing them to move towards the guide tube 13. Once inside the guide tube 13, the large particles flow into the waste collection tube 14. The amount of large particles collected inside the waste collection tube 14 can be observed through the observation plate 28 for monitoring purposes. The system allows staff to promptly clean large particles collected inside the waste collection tube 14. Once the insect eggs have been concentrated, rotating the separation tube 18 separates it from the sleeve 10, allowing for subsequent testing of the collected insect eggs. During the egg concentration process, the mixture will not spill or overflow, preventing pollution of the surrounding environment. Simultaneously, the cleaning element 17 promptly cleans large particles accumulated on the surface of the first filter 11, effectively improving the efficiency of egg concentration and reducing the possibility of insect eggs adhering to the top of large particles. This allows for the collection of as many insect eggs as possible, improving the accuracy of subsequent testing data. Furthermore, it provides a convenient tool for the pretreatment of biological samples before experiments in related fields.
[0051] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A device for concentrating Echinococcus granulosus eggs in feces of a wild definitive host animal, characterized by: The utility model provides a kind of waste collecting device, including sleeve (10), the inside of sleeve (10) is sequentially fixed with first filter screen (11) and second filter screen (12) from upper end to lower end, the outside of first filter screen (11) is fixed with guide pipe (13), and the inside of guide pipe (13) and sleeve (10) are interconnected, the lower end of guide pipe (13) is detachably fixed with waste collecting pipe (14), the upper end of sleeve (10) is rotatably connected with mixing pipe (15), the inside of mixing pipe (15) is rotatably connected with transmission shaft rod (16), the lower end of transmission shaft rod (16) outside and located the upper end of first filter screen (11) is fixed with cleaning element (17), cleaning element (17) and sleeve (10) are adapted, the horizontal section shape of cleaning element (17) is involute, and the bottom of cleaning element (17) and the top of first filter screen (11) are attached, the lower end of sleeve (10) is threadedly connected with separation pipe (18).
2. A device for concentrating eggs of Echinococcus granulosus in feces of a final host animal of the parasite according to claim 1, characterized in that: The upper end of mixing pipe (15) is detachably sleeved with stirring handle (19), the lower end of stirring handle (19) is fixed with stirring shaft (20), the outside of stirring shaft (20) is fixed with multiple stirring rods (21), the inside of stirring shaft (20) is provided with clamping hole (22), the inside of clamping hole (22) is provided with rotation-stopping surface, the outside of transmission shaft rod (16) and located the inside of mixing pipe (15) is provided with chamfered surface, and transmission shaft rod (16) and stirring shaft (20) and rotation-stopping surface and chamfered surface are adapted.
3. A device for concentrating eggs of Echinococcus granulosus in feces of a final host animal of Echinococcus granulosus according to claim 2, characterized in that: The outside of stirring rod (21) is fixed with multiple collecting rods, and multiple collecting rods are annularly arranged on the outside of stirring rod (21).
4. The device for concentrating eggs of Echinococcus granulosus in feces of a final host animal in the field according to claim 1, characterized in that: The upper end of the inside of sleeve (10) and located the upper end of cleaning element (17) is fixed with baffle (23), the inside of baffle (23) is provided with first throttling hole (24), the bottom of mixing pipe (15) is provided with second throttling hole (25), and first throttling hole (24) and second throttling hole (25) are adapted, in initial state, first throttling hole (24) and second throttling hole (25) are away from each other.
5. A device for concentrating eggs of Echinococcus granulosus in feces of a final host animal of the parasite according to claim 1, characterized in that: The upper end of the outside of sleeve (10) is provided with arc-shaped avoiding slot (26), the outside of sleeve (10) is provided with multiple opening degree marks, the outside of mixing pipe (15) is fixed with indicating rod (27), and indicating rod (27) and arc-shaped avoiding slot (26) and indicating rod (27) and opening degree mark are mutually adapted.
6. A device for concentrating eggs of Echinococcus granulosus in feces of a final host animal of Echinococcus granulosus according to claim 1, characterized in that: The outside of waste collecting pipe (14) is provided with observation window, the inside of observation window is fixed with observation plate (28), the material of observation plate (28) is acrylic.
7. A device for concentrating eggs of Echinococcus granulosus in feces of a final host animal of Echinococcus granulosus according to claim 1, characterized in that: The inside of first filter screen (11) is provided with multiple first filter holes, the inside of second filter screen (12) is provided with multiple second filter holes, and the aperture of second filter hole is smaller than the aperture of first filter hole.
8. A device for concentrating eggs of Echinococcus granulosus in feces of a final host animal of Echinococcus granulosus according to claim 2, characterized in that: The upper end of stirring handle (19) is provided with rotation direction mark, and the opening direction of rotation direction mark and cleaning element (17) is opposite.