Filter screen for full-automatic harvester and full-automatic harvester

Abstract

The utility model discloses a filtrate sieve for a full-automatic harvester and the full-automatic harvester, and belongs to the technical field of vaccine production. A filtrate sieve for a full-automatic harvester comprises a filtrate sieve body installed in the harvester, the filtrate sieve body comprises a first filter screen and a second filter screen of a rotary tubular structure, the top end face of the second filter screen is fixedly connected with the bottom end face of the first filter screen, and the end, away from the first filter screen, of the second filter screen is communicated with the liquid discharging end of a harvesting tank; the filtrate sieve main body is optimized into a three-dimensional structure, so that the filtering area and the filtering level of a stock solution in the harvesting tank main body are increased, the stock solution can be filtered through the barrel wall of the whole filtrate sieve main body, and the harvesting efficiency is improved; moreover, eggshell residues, chippings and other impurities can be gradually precipitated in the collecting tank along with the filtering process of the harvested stock solution, so that the secondary influence of the impurities on the stock solution filtering is avoided, and the quality of the filtered stock solution is improved.

Description

Technical Field

[0001] This utility model relates to the field of vaccine production technology, and in particular to a filtrate sieve for a fully automatic harvester and a fully automatic harvester. Background Technology

[0002] In vaccine production, the production process of some vaccines (such as influenza vaccines) involves using chicken embryos (eggs) as a culture medium. Automated harvesters refer to automated equipment used to collect the virus-containing egg white fluid (also known as allantoic fluid or amniotic fluid) from infected chicken embryos.

[0003] Automated inoculation, incubation, and harvesting systems not only improve production efficiency but also reduce the risk of human error and contamination. The workflow generally involves first shelling the hatching eggs at the harvester, then inserting a harvesting probe into the egg to extract the egg white liquid, which is then sent to the harvester's harvesting tank. After preliminary filtration, the liquid is transported by a pump to the next stage for further processing.

[0004] In existing technologies, a filter screen is typically installed inside the harvesting tank of a harvester to filter out particulate matter such as eggshells from the egg white liquid. Currently, the filter screen is generally a flat, plate-like structure, laid flat above the inlet end of the drain pipe at the bottom of the harvesting tank for preliminary filtration of the harvested liquid. However, because the liquid processed in the influenza workshop is egg supernatant, which has a high viscosity, and because the egg liquid harvested by the harvester is the upstream step in the entire influenza vaccine production process, containing some eggshell fragments and a small amount of impurities, it is prone to clogging the filter screen in the harvesting tank. This significantly reduces harvesting efficiency, leading to low overall efficiency of the harvester and a substantial impact on the overall influenza vaccine production efficiency. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the existing flat plate filter screen that not only easily accumulates eggshell debris, but also has a low egg liquid throughput. Therefore, this invention proposes a filtrate screen for a fully automatic harvester and a fully automatic harvester.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A filtrate screen for a fully automatic harvester includes a filtrate screen body installed inside the harvester. The filtrate screen body includes a first filter screen and a second filter screen with a rotating tubular structure. The top end face of the second filter screen is fixedly connected to the bottom end face of the first filter screen, and the end of the second filter screen away from the first filter screen is connected to the discharge end of the harvesting tank.

[0008] For ease of processing and production, the first filter screen is preferably in the form of a disc.

[0009] In order to reduce the accumulation of impurities on the filter screen, the first filter screen is preferably hemispherical in shape.

[0010] A fully automatic harvester includes a harvesting tank body, which includes a base and a top cover detachably connected to the base. A transparent cylinder is disposed between the base and the top cover. A fixing ring is fixedly disposed at the bottom of the transparent cylinder and is disposed inside the base. A drain pipe is fixedly disposed inside the base. An inlet pipe is fixedly disposed on the top cover. A filter screen body is disposed inside the transparent cylinder, and an mounting ring is fixedly disposed at the bottom of the second filter screen. The mounting ring is detachably disposed inside the fixing ring via a connecting part.

[0011] To facilitate the installation of the transparent tube, preferably, the top end face of the base is provided with a placement groove, the fixing ring is slidably disposed in the placement groove, a first sealing gasket is provided between the bottom of the fixing ring and the placement groove, and the top of the transparent tube abuts against the bottom of the top cover, and the base and the top cover are detachably connected by bolts.

[0012] Furthermore, a stepped groove is provided inside the fixing ring, and a connecting ring is fixedly provided at the bottom of the mounting ring, the connecting ring being disposed within the stepped groove.

[0013] Furthermore, a second seal is fixedly provided on the top end face of the fixing ring, and the top end face of the second sealing gasket abuts against the bottom of the mounting ring.

[0014] Furthermore, the connecting part includes an external thread formed on the outer wall of the connecting ring, and an internal thread corresponding to the external thread is formed on the inner wall of the stepped groove, and the outer wall of the connecting ring is threadedly connected to the inner wall of the stepped groove.

[0015] Furthermore, the connecting part includes a first magnetic ring fixedly disposed at the bottom of the connecting ring, the bottom of the connecting ring abutting against the bottom of the stepped groove, and a second magnetic ring fixedly disposed in the stepped groove, the first magnetic ring and the second magnetic ring being magnetically attracted to each other.

[0016] Preferably, the outer wall of the mounting ring abuts against the inner wall of the transparent cylinder, and a collection groove is provided on the top end face of the mounting ring.

[0017] Compared with the prior art, this utility model provides a filtrate screen for a fully automatic harvester and a fully automatic harvester, which has the following beneficial effects:

[0018] 1. The fully automatic harvester uses a filtrate screen. By combining the main body of the filtrate screen with a three-dimensional structure consisting of a first filter screen and a second filter screen, the filtration area and filtration layers of the raw liquid in the main body of the harvesting tank are increased. The original flat filter screen could only filter through a plane, but now it can filter through the entire cylinder wall of the filtrate screen. As the liquid level in the main body of the harvesting tank gradually rises, the filtration area of ​​the filtrate screen also increases linearly, fully meeting the overall high efficiency requirements of the equipment for harvesting. Moreover, the three-dimensional design structure allows eggshell residue, debris and other impurities to gradually settle around the bottom of the filter screen during the filtration process of the harvested raw liquid, without participating in the filtration process again. This avoids the secondary impact of these impurities on the filtration of the raw liquid and improves the quality of the filtered raw liquid.

[0019] 2. This fully automatic harvester has a collection trough on the top end face of the mounting ring. Eggshell residue, debris and other impurities gradually settle in the collection trough during the filtration process of the harvest liquid. This not only reduces the need for these impurities to participate in the filtration process again and reduces their secondary impact on the filtration of the liquid, but also makes it easier to collect and clean them after use, thus improving the efficiency of use.

[0020] The parts of this device not described herein are the same as or can be implemented using existing technologies. This utility model optimizes the main body of the filtrate screen into a three-dimensional structure, increasing the filtration area and filtration layers of the raw liquid in the main body of the harvesting tank. It upgrades the original flat filter screen, which could only filter through a plane, to filter through the entire cylindrical wall of the filtrate screen main body. As the liquid level in the main body of the harvesting tank gradually rises, the filtration area of ​​the filtrate screen main body also increases linearly, fully meeting the overall high efficiency requirements of the equipment for harvesting. Moreover, the three-dimensional design structure allows eggshell residue, debris, and other impurities to gradually settle around the bottom of the filter screen during the filtration process of the harvested raw liquid, without participating in the filtration process again. This avoids the secondary impact of these impurities on the filtration of the raw liquid and improves the quality of the filtered raw liquid. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a filtrate sieve for a fully automatic harvester proposed in this utility model;

[0022] Figure 2 This utility model provides a structural schematic diagram of a fully automatic harvester. Figure 1 ;

[0023] Figure 3 This utility model provides a structural schematic diagram of a fully automatic harvester. Figure 2 ;

[0024] Figure 4 This is a cross-sectional view of a fully automatic harvester proposed in this utility model;

[0025] Figure 5This utility model proposes a fully automatic harvester. Figure 4 A schematic diagram of part A in the middle;

[0026] Figure 6 This utility model provides a schematic diagram of the structure of a fully automatic harvester. Figure 3 .

[0027] In the diagram: 1. Base; 101. Top cover; 102. Placement slot; 2. Transparent cylinder; 201. Fixing ring; 202. Stepped groove; 3. First filter screen; 301. Second filter screen; 302. Mounting ring; 303. Connecting ring; 4. First magnetic ring; 401. Second magnetic ring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Example 1:

[0031] Reference Figure 1A filtrate screen for a fully automatic harvester includes a filtrate screen body installed inside the harvester. Here, the filtrate screen body is designed as a first filter screen 3 and a second filter screen 301 with a rotating tubular structure. The top end face of the second filter screen 301 is fixedly connected to the bottom end face of the first filter screen 3, forming a three-dimensional structure. The end of the second filter screen 301 furthest from the first filter screen 3 is connected to the discharge end of the harvesting tank. The first filter screen 3 has a disc-shaped structure, and the outer diameter of the disc is equal to the outer diameter of the tubular structure of the second filter screen 301. In use, the filtrate screen body is assembled from the first filter screen 3 and the second filter screen 301. The three-dimensional structure increases the filtration area and filtration layers of the raw liquid within the harvesting tank. The original flat filter screen, which could only filter through a flat surface, can now filter through the entire cylindrical wall of the filtrate screen. As the liquid level in the harvesting tank gradually rises, the filtration area of ​​the filtrate screen also increases linearly, fully meeting the overall high-efficiency requirements of the equipment. Furthermore, the three-dimensional design allows eggshell residue, debris, and other impurities to gradually settle around the bottom of the filter screen during the filtration process, preventing them from participating in the filtration again and avoiding secondary impacts on the raw liquid filtration, thus improving the quality of the filtered raw liquid.

[0032] Example 2:

[0033] Reference Figure 1 Similar to Embodiment 1, here we have expanded the structure of the first filter 3 based on Embodiment 1. Here, we design the first filter 3 as a hemispherical structure. In use, by designing the first filter 3 as a hemispherical structure, due to its arc structure, while ensuring the effective filtration area, we can minimize the accumulation of eggshell residue, debris and other impurities on the first filter 3, thereby reducing the risk of clogging the first filter 3 and improving the filtration effect.

[0034] Example 3:

[0035] Reference Figures 1-5A fully automatic harvester includes a harvesting tank body, which is designed as a base 1 and a top cover 101 detachably connected to the base 1. A transparent cylinder 2 is provided between the base 1 and the top cover 101. The transparent cylinder 2 is made of transparent acrylic or glass, preferably acrylic, to facilitate direct observation of the filtration status inside the harvesting tank body during use, improving the efficiency. A fixing ring 201 is fixedly installed at the bottom of the transparent cylinder 2 and placed inside the base 1. A drain pipe is fixedly installed at the bottom inside the base 1. During use, the input end of a delivery pump or peristaltic pump can be connected to the drain pipe to extract egg white liquid. An inlet pipe is fixedly installed on the top cover 101. Multiple sets of inlet pipes are evenly arranged to allow simultaneous extraction of egg white liquid from multiple hatching eggs and screening of the filtrate. The main body is set inside the transparent cylinder 2, and an installation ring 302 is fixedly installed at the bottom of the second filter screen 301. The installation ring 302 is detached and installed inside the fixed ring 201 through the connecting part. In use, the egg white liquid is sucked out by inserting the harvesting probe into the hatching egg and sent to the harvesting tank of the harvester through the liquid inlet pipe on the top cover 101. After being filtered by the filter screen body, the delivery pump can extract it through the drain pipe for subsequent use. The outer wall of the installation ring 302 abuts against the inner wall of the transparent cylinder 2. A collection groove is opened on the top end face of the installation ring 302. Eggshell residue, debris and other impurities gradually settle in the collection groove during the filtration process of the harvesting liquid. This not only reduces the need for re-entry into the filtration process and reduces the secondary impact of these impurities on the filtration of the liquid, but also makes it easy to collect and clean them after use, improving the usage effect.

[0036] Reference Figures 1-5 A placement groove 102 is provided on the top end face of the base 1. The fixing ring 201 is slidably placed in the placement groove 102. A first sealing gasket is provided between the bottom of the fixing ring 201 and the placement groove 102. The top and bottom of the first sealing gasket abut against the bottom of the fixing ring 201 and the top of the placement groove 102, respectively, to achieve a sealing effect. The top of the transparent tube 2 abuts against the bottom of the top cover 101. The base 1 and the top cover 101 are connected by bolts. In use, the fixing ring 201 at the bottom of the transparent tube 2 is installed in the placement groove 102 on the base 1. Then, the top cover 101 is placed on the top of the transparent tube 2. A long bolt is then passed through the bottom of the base 1 and out through the top of the top cover 101. The nut is tightened on the bolt so that the bottom end face of the nut abuts against the top end face of the top cover 101, thereby fixing the transparent tube 2 between the base 1 and the top cover 101. A third sealing gasket is provided between the top cover 101 and the top of the transparent tube 2 to further improve the sealing effect.

[0037] Reference Figures 2-5A stepped groove 202 is provided in the fixed ring 201, and a connecting ring 303 is fixedly provided at the bottom of the mounting ring 302. The connecting ring 303 is set in the stepped groove 202. In use, by providing a stepped groove 202 on the fixed ring 201 and a connecting ring 303 fixedly provided at the bottom of the mounting ring 302, it is convenient to install the main body of the filtrate screen in the transparent cylinder 2, and the installation position can be ensured to be accurate.

[0038] Reference Figure 4 and Figure 5 A second seal is fixedly provided on the top end face of the fixing ring 201. The top end face of the second sealing gasket abuts against the bottom of the mounting ring 302. In use, by setting the second sealing gasket between the fixing ring 201 and the mounting ring 302, the sealing effect can be improved, and the egg white liquid can be prevented from entering the drain pipe without filtration, thus affecting normal use.

[0039] Reference Figure 5 Here, we design the connecting part to have an external thread on the outer wall of the connecting ring 303 and an internal thread corresponding to the external thread on the inner wall of the stepped groove 202. The outer wall of the connecting ring 303 is threadedly connected to the inner wall of the stepped groove 202. In use, by threading the connecting ring 303 into the stepped groove 202, the fixing effect is reliable and the assembly and disassembly are relatively convenient, thus improving the use effect.

[0040] Example 4:

[0041] Reference Figure 6 Based on Embodiment 3, we have expanded the connecting part. Here, we design the connecting part to have a first magnetic ring 4 fixedly installed at the bottom of the connecting ring 303, with the bottom of the connecting ring 303 abutting against the bottom of the stepped groove 202. A second magnetic ring 401 is fixedly installed in the stepped groove 202. Both the first magnetic ring 4 and the second magnetic ring 401 are strong magnets, which magnetically attract the first magnetic ring 4 and the second magnetic ring 401. In use, by fixing the first magnetic ring 4 at the bottom of the connecting ring 303 and the second magnetic ring 401 in the stepped groove 202, when the filtrate screen body is installed in the stepped groove 202, the first magnetic ring 4 and the second magnetic ring 401 magnetically attract each other, thus fixing the filtrate screen body in the stepped groove 202. This makes installation and disassembly convenient, the fixing more reliable, and improves the performance.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A filtrate screen for a fully automatic harvester, comprising a filtrate screen body installed inside the harvester, characterized in that, The main body of the filtrate screen includes a first filter screen (3) and a second filter screen (301) in the form of a rotating tubular structure. The top end face of the second filter screen (301) is fixedly connected to the bottom end face of the first filter screen (3), and the end of the second filter screen (301) away from the first filter screen (3) is connected to the discharge end of the harvesting tank.

2. The filtrate sieve for a fully automatic harvester according to claim 1, characterized in that, The first filter (3) has a disc-shaped structure.

3. The filtrate sieve for a fully automatic harvester according to claim 1, characterized in that, The first filter (3) has a hemispherical structure.

4. A fully automatic harvester, comprising a filtrate screen for a fully automatic harvester as described in any one of claims 1-3, characterized in that, The system includes a harvesting tank body, which includes a base (1) and a top cover (101) detachably connected to the base (1). A transparent cylinder (2) is provided between the base (1) and the top cover (101). A fixing ring (201) is fixedly provided at the bottom of the transparent cylinder (2). The fixing ring (201) is located inside the base (1). A drain pipe is fixedly provided inside the base (1). An inlet pipe is fixedly provided on the top cover (101). The main body of the filter screen is located inside the transparent cylinder (2). An installation ring (302) is fixedly provided at the bottom of the second filter screen (301). The installation ring (302) is detachably installed inside the fixing ring (201) through a connecting part.

5. A fully automatic harvester according to claim 4, characterized in that, The base (1) has a placement groove (102) on its top end face. The fixing ring (201) is slidably disposed in the placement groove (102). A first sealing gasket is provided between the bottom of the fixing ring (201) and the placement groove (102). The top of the transparent cylinder (2) abuts against the bottom of the top cover (101). The base (1) and the top cover (101) are connected by bolts.

6. A fully automatic harvester according to claim 5, characterized in that, The fixed ring (201) has a stepped groove (202) inside, and the bottom of the mounting ring (302) is fixedly provided with a connecting ring (303), which is located in the stepped groove (202).

7. A fully automatic harvester according to claim 6, characterized in that, The top end face of the fixing ring (201) is fixedly provided with a second seal, and the top end face of the second sealing gasket abuts against the bottom of the mounting ring (302).

8. A fully automatic harvester according to claim 7, characterized in that, The connecting part includes an external thread on the outer wall of the connecting ring (303), and an internal thread corresponding to the external thread is provided on the inner wall of the stepped groove (202). The outer wall of the connecting ring (303) is threadedly connected to the inner wall of the stepped groove (202).

9. A fully automatic harvester according to claim 7, characterized in that, The connecting part includes a first magnetic ring (4) fixedly disposed at the bottom of the connecting ring (303), the bottom of the connecting ring (303) abutting against the bottom of the stepped groove (202), and a second magnetic ring (401) fixedly disposed in the stepped groove (202), the first magnetic ring (4) and the second magnetic ring (401) magnetically attracted to each other.

10. A fully automatic harvester according to claim 4, characterized in that, The outer wall of the mounting ring (302) abuts against the inner wall of the transparent tube (2), and a collection groove is provided on the top end face of the mounting ring (302).

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