A multi-stage filtering device for milk processing

The milk filter is easily disassembled using a limiting component and a fixing ring structure, which solves the problems of the lid being difficult to rotate and clogging, thus improving the filtration effect and convenience.

CN224388188UActive Publication Date: 2026-06-23LINQING RUTAI DAIRY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LINQING RUTAI DAIRY CO LTD
Filing Date
2025-07-22
Publication Date
2026-06-23

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    Figure CN224388188U_ABST
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Abstract

The utility model relates to milk filtering technical field, concretely is a kind of multistage filter device for milk processing, including box, top cover, first filter and second filter, top cover is set at the upper end of box, the outer wall of box is equipped with the limiting component of fixed top cover. Compared with prior art, the patent is set by limiting component, fixed component, first fixed ring, second fixed ring, support ring, first inserting rod and second inserting rod, by adjusting fixed component and limiting component, the top cover can be quickly opened, then by pulling the pull slot on pull block, the second fixed ring and first filter can be pulled out, then by pulling second inserting rod, the first fixed ring and second filter can be pulled out, cleaning and replacement can be carried out, the top cover can be disassembled without rotating the top cover, it is very convenient and fast, and first filter and second filter can also be quickly replaced, to avoid the technical problem of affecting milk filtering effect.
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Description

Technical Field

[0001] This utility model relates to the field of milk filtration technology, specifically a multi-stage filtration device for milk processing. Background Technology

[0002] A multi-stage filtration system for milk processing is a piece of equipment used in milk processing. Through multi-stage filtration technology, it ensures the purity and safety of milk. By using different levels of filtration technology, the multi-stage filtration system can effectively remove suspended solids, sediments, bacteria, and other particulate impurities from milk, ensuring the purity and hygiene of the milk.

[0003] The prior art, CN216170400U, discloses a high-efficiency multi-stage filtration device for milk processing, belonging to the field of milk filtration technology. It includes a device shell, external threads, a support, a cover, and a first filter. The external threads are fixedly connected to the top surface of the device shell, the support is fixedly connected to the bottom of the device shell, the cover is fixedly connected to the top of the device shell, the first filter is fixedly connected to the middle of the inner side of the device shell, and a heating tube pasteurization mechanism is fixedly connected to the bottom of the inner side of the device shell. This design includes a third filter, which is an RO membrane filter. Since the pore size of the RO membrane is 0.0001 micrometers, bacteria and viruses that are generally invisible to the naked eye are 5000 times larger. Therefore, only water molecules and some mineral ions can pass through, while other impurities and heavy metals are discharged through a wastewater pipe. This allows the milk to be filtered to remove viruses and bacteria without losing its nutritional components, achieving highly efficient filtration and greatly improving the quality and safety of the milk.

[0004] With the above setup, the existing filtration device incorporates a third filter, specifically an RO membrane filter. Since the pore size of the RO membrane is 0.0001 micrometers, bacteria and viruses invisible to the naked eye are 5000 times larger. Therefore, only water molecules and some mineral ions can pass through, while other impurities and heavy metals are discharged through the wastewater pipe. This allows the milk to be filtered to remove viruses and bacteria without losing its nutritional components, achieving highly efficient filtration and significantly improving the quality and safety of the milk. However, the existing filtration device has the following drawbacks during operation:

[0005] After use, when the first and second filters of the existing filtration device need to be cleaned, the cover is twisted to detach it from the outer shell of the device. However, because the cover is heavy, it cannot be easily rotated, making it very inconvenient to clean the first and second filters. At the same time, the first and second filters are prone to clogging after long-term use, and they cannot be disassembled, replaced, or cleaned, affecting the filtration effect on milk. Utility Model Content

[0006] This utility model aims to provide a multi-stage filtration device for milk processing, mainly to solve the technical problems of existing technology where it is very inconvenient and laborious for the rotating cover to detach from the outer shell of the device, and the first and second filters are prone to clogging after long-term use, which affects the filtration of milk.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A multi-stage filtration device for milk processing includes a housing, a top cover, a first filter, and a second filter. The top cover is located at the top of the housing. A limiting component for fixing the top cover is installed on the outer wall of the housing. A support ring is fixed to the inner wall of the housing. A plurality of first insert rods are fixed to the upper surface of the support ring. A first fixing ring is inserted into the outer wall of the first insert rod. A plurality of second insert rods are fixed to the upper surface of the first fixing ring. A second fixing ring is inserted into the outer wall of the second insert rod. The first filter and the second filter are fixed to the inner walls of the second fixing ring and the first fixing ring, respectively.

[0009] The working principle and beneficial effects of this utility model:

[0010] 1. Working principle: When it is necessary to disassemble the first filter and the second filter, first adjust the fixing component so that the T-block on the limiting component moves under the action of the compression spring, so that the T-block disengages from the T-groove. Then pull the top cover upward so that the guide block disengages from the guide groove. Then pull the pull block, which drives the second fixing ring to move, so that the second fixing ring drives the first filter to disengage from the second insert rod. Then pull the second insert rod again so that the first fixing ring drives the second filter to disengage from the first insert rod. Then the first filter and the second filter can be cleaned and replaced.

[0011] 2. Beneficial effects:

[0012] Existing technology incorporates a third filter, specifically an RO membrane filter. Since the pore size of an RO membrane is 0.0001 micrometers, bacteria and viruses invisible to the naked eye are 5000 times larger. Therefore, only water molecules and some mineral ions can pass through, while other impurities and heavy metals are discharged through the wastewater pipe. This allows milk to be filtered to remove viruses and bacteria without losing its nutritional value, achieving highly efficient filtration and significantly improving milk quality and safety. However, after use, cleaning the first and second filters requires unscrewing the caps, which are difficult to rotate due to their weight. This makes cleaning the first and second filters very inconvenient. However, the first and second filters are prone to clogging after prolonged use, making them difficult to disassemble, replace, and clean, thus affecting the filtration effect on milk. This solution addresses this issue by incorporating a limiting component, a fixing component, a first fixing ring, a second fixing ring, a support ring, a first insert rod, and a second insert rod. By adjusting the fixing and limiting components, the top cover can be quickly opened. Then, by pulling the groove on the pull block, the second fixing ring and the first filter can be pulled out. Finally, by pulling the second insert rod, the first fixing ring and the second filter can be pulled out for cleaning and replacement. The top cover can be disassembled without rotating it, making it very convenient and quick. It also allows for rapid replacement of the first and second filters, avoiding technical problems that affect the milk filtration effect.

[0013] Preferably, the limiting component includes an upper block fixed to the outer wall of the top cover, and a lower block fixed to the outer wall of the housing. The upper and lower blocks correspond to each other. T-shaped grooves are formed on the outer walls of the upper and lower blocks. A sliding groove is formed on the inner wall of the T-shaped groove. A compression spring is fixed to the inner wall of the sliding groove. A sliding rod is fixed to the other end of the compression spring and slidably connected to the inner wall of the sliding groove. A T-shaped rod is fixed to the other end of the sliding rod and slidably connected to the T-shaped groove. A movable groove is formed on one side of the T-shaped rod, and a fixing component is installed on the inner wall of the movable groove. By setting the limiting component, the upper and lower blocks can be limited, preventing the top cover from detaching from the housing.

[0014] Preferably, the fixing component includes a fixing spring, which is fixedly connected to the movable groove. A fixing rod is fixedly connected to the other end of the fixing spring and slidably connected to the movable groove. A fixing groove is formed on the inner wall of the T-shaped groove, and a sliding plate is slidably connected to the inner wall of the fixing groove. A push rod is fixedly connected to one side of the sliding plate, passing through the upper block and slidably connected thereto. The fixing rod is inserted into the fixing groove and abuts against the sliding plate. By setting the fixing component, the T-shaped rod can be limited, allowing it to easily disengage from the T-shaped groove and preventing the top cover from detaching from the housing.

[0015] Preferably, a first fixing block and a second fixing block are fixedly connected to the outer walls of the housing and the top cover, respectively. The upper surface of the first fixing block has a guide groove, and the lower surface of the second fixing block has a guide block fixedly connected to it. The guide block is inserted into the guide groove. By setting the first fixing block and the second fixing block, the guide block can be inserted into the guide groove to limit the horizontal movement of the top cover and prevent the top cover from moving. At the same time, it facilitates the installation of the top cover.

[0016] Preferably, symmetrical pull blocks are fixed to the upper surface of the second fixing ring, and the pull blocks are flush with the top surface of the housing. By setting the pull blocks, it is convenient to pull out the second fixing ring and the first filter.

[0017] Preferably, a push block is fixedly connected to the end of the push rod away from the slide plate, and a rubber pad is fixedly connected to the outer wall of the push block. By setting the push block, the push rod is prevented from sliding into the fixed groove.

[0018] Preferably, the pull block has a groove inside, which facilitates pulling the pull block to move. Attached Figure Description

[0019] Figure 1 This is a structural diagram of the present utility model patent;

[0020] Figure 2 This is a cross-sectional structural diagram of the present utility model patent;

[0021] Figure 3 This is a cross-sectional view of the upper and lower blocks of this utility model patent.

[0022] Figure 4 This utility model patent Figure 2 Structural diagram at point A;

[0023] Figure 5 This utility model patent Figure 3 Structural diagram at point B.

[0024] The reference numerals in the accompanying drawings of the instruction manual include: 1. Box body; 2. Top cover; 3. First filter; 4. Second filter; 5. Support ring; 6. First insert rod; 7. First fixing ring; 8. Second insert rod; 9. Second fixing ring; 10. Upper block; 11. Lower block; 12. T-slot; 13. Slide groove; 14. Compression spring; 15. Slide rod; 16. T-shaped rod; 17. Movable groove; 18. Fixed spring; 19. Fixed rod; 20. Fixed groove; 21. Slide plate; 22. Push rod; 23. First fixing block; 24. Second fixing block; 25. Guide groove; 26. Guide block; 27. Pull block; 28. Press block; 29. ​​Pull groove. Detailed Implementation

[0025] 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.

[0026] like Figure 1-5 As shown, a multi-stage filtration device for milk processing includes a housing 1, a top cover 2, a first filter 3, and a second filter 4. A sealing gasket is fixed to the side of the top cover 2 that contacts the housing 1. A first fixing block 23 and a second fixing block 24 are fixed to the outer walls of the housing 1 and the top cover 2, respectively. A guide groove 25 is formed on the upper surface of the first fixing block 23, and a guide block 26 is fixed to the lower surface of the second fixing block 24. The guide block 26 is inserted into the guide groove 25. The top cover 2 is located at the upper end of the housing 1. A limiting assembly for fixing the top cover 2 is installed on the outer wall of the housing 1. The limiting assembly includes an upper block 10. 0 is fixed to the outer wall of the top cover 2. A lower block 11 is fixed to the outer wall of the box 1. An upper block 10 corresponds to the lower block 11. A T-shaped groove 12 is formed on the outer wall of the upper block 10 and the lower block 11. A sliding groove 13 is formed on the inner wall of the T-shaped groove 12. A compression spring 14 is fixed to the inner wall of the sliding groove 13. A sliding rod 15 is fixed to the other end of the compression spring 14. The sliding rod 15 is slidably connected to the inner wall of the sliding groove 13. A T-shaped rod 16 is fixed to the other end of the sliding rod 15. The T-shaped rod 16 is slidably connected to the T-shaped groove 12. A movable groove 17 is formed on one side of the T-shaped rod 16. A fixed... The component includes a fixed spring 18, which is fixedly connected to the movable groove 17. A fixed rod 19 is fixedly connected to the other end of the fixed spring 18 and slidably connected to the movable groove 17. A fixed groove 20 is formed on the inner wall of the T-shaped groove 12. A sliding plate 21 is slidably connected to the inner wall of the fixed groove 20. A push rod 22 is fixedly connected to one side of the sliding plate 21, passing through and slidably connecting to the upper block 10. A pressing block 28 is fixedly connected to the end of the push rod 22 away from the sliding plate 21. A rubber pad is fixedly connected to the outer wall of the pressing block 28. The fixed rod 19 is inserted into the fixed groove 20. One side has an inclined surface that abuts against the slide plate 21. A support ring 5 is fixed to the inner wall of the housing 1. Multiple first insert rods 6 are fixed to the upper surface of the support ring 5. A first fixing ring 7 is inserted into the outer wall of the first insert rod 6. Multiple second insert rods 8 are fixed to the upper surface of the first fixing ring 7. A second fixing ring 9 is inserted into the outer wall of the second insert rod 8. The first filter 3 and the second filter 4 are fixed to the inner walls of the second fixing ring 9 and the first fixing ring 7, respectively. A symmetrical pull block 27 is fixed to the upper surface of the second fixing ring 9. The pull block 27 is flush with the top surface of the housing 1. A pull groove 29 is opened in the inner of the pull block 27.

[0027] As can be seen from the above, the specific embodiments of this utility model are as follows:

[0028] When it is necessary to disassemble the first filter 3 and the second filter 4, first press the push rod 22, causing the push rod 22 to push the slide plate 21 to slide inside the fixed groove 20. This causes the slide plate 21 to push the fixed rod 19 to compress the fixed spring 18, causing the fixed rod 19 to retract into the movable groove 17. At this time, the T-shaped rod 16 moves under the action of the compression spring 14, causing the T-shaped rod 16 to disengage from the T-shaped groove 12. Then, pull the top cover 2 upward, causing the guide block 26 to disengage from the guide groove 25. Then, pull the pull block 27, which drives the second fixed ring 9 to move, causing the second fixed ring 9 to drive the first filter 3 to disengage from the second insert rod 8. Then, pull... Move the second insert rod 8 so that the first fixing ring 7 drives the second filter 4 to disengage from the first insert rod 6. Then the first filter 3 and the second filter 4 can be cleaned and replaced. During installation, first install the first filter 3 and the second filter 4 inside the housing 1 respectively. Then place the top cover 2 on the top of the housing 1 so that the guide block 26 on the second fixing block 24 is inserted into the guide groove 25 on the first fixing block 23. At this time, the upper block 10 is located on the upper surface of the lower block 11. Then press the T-shaped rod 16 so that the T-shaped rod 16 compresses the compression spring 14, so that the fixing rod 19 on the T-shaped rod 16 is inserted into the fixing groove 20, thus completing the fixing of the top cover 2.

[0029] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A multi-stage filtration device for milk processing, comprising a housing (1), a top cover (2), a first filter (3), and a second filter (4), characterized in that, The top cover (2) is set at the upper end of the box body (1). The outer wall of the box body (1) is equipped with a limiting component for fixing the top cover (2). The inner wall of the box body (1) is fixed with a support ring (5). Multiple first insert rods (6) are fixed on the upper surface of the support ring (5). A first fixing ring (7) is inserted into the outer wall of the first insert rod (6). Multiple second insert rods (8) are fixed on the upper surface of the first fixing ring (7). A second fixing ring (9) is inserted into the outer wall of the second insert rod (8). The first filter (3) and the second filter (4) are fixed to the inner walls of the second fixing ring (9) and the first fixing ring (7), respectively.

2. The multi-stage filtration device for milk processing according to claim 1, characterized in that: The limiting component includes an upper block (10), which is fixed to the outer wall of the top cover (2). A lower block (11) is fixed to the outer wall of the box (1). The upper block (10) and the lower block (11) correspond to each other. A T-shaped groove (12) is opened on the outer wall of the upper block (10) and the lower block (11). A sliding groove (13) is opened on the inner wall of the T-shaped groove (12). A compression spring (14) is fixed to the inner wall of the sliding groove (13). A sliding rod (15) is fixed to the other end of the compression spring (14). The sliding rod (15) is slidably connected to the inner wall of the sliding groove (13). A T-shaped rod (16) is fixed to the other end of the sliding rod (15). The T-shaped rod (16) is slidably connected to the T-shaped groove (12). A movable groove (17) is opened on one side of the T-shaped rod (16). A fixing component is installed on the inner wall of the movable groove (17).

3. The multi-stage filtration device for milk processing according to claim 2, characterized in that: The fixing component includes a fixing spring (18), which is fixedly connected to the movable groove (17). The other end of the fixing spring (18) is fixedly connected to a fixing rod (19), which is slidably connected to the movable groove (17). The inner wall of the T-shaped groove (12) is provided with a fixing groove (20), and the inner wall of the fixing groove (20) is slidably connected to a sliding plate (21). One side of the sliding plate (21) is fixedly connected to a push rod (22), which passes through the upper block (10) and is slidably connected to it. The fixing rod (19) is inserted into the fixing groove (20) and abuts against the sliding plate (21).

4. The multi-stage filtration device for milk processing according to claim 1, characterized in that: The outer walls of the box body (1) and the top cover (2) are respectively fixed with a first fixing block (23) and a second fixing block (24). The upper surface of the first fixing block (23) is provided with a guide groove (25), and the lower surface of the second fixing block (24) is fixed with a guide block (26). The guide block (26) is inserted into the guide groove (25).

5. A multi-stage filtration device for milk processing according to claim 1, characterized in that: The upper surface of the second fixing ring (9) is fixed with symmetrical pull blocks (27), and the pull blocks (27) are flush with the top surface of the box (1).

6. A multi-stage filtration device for milk processing according to claim 3, characterized in that: A push rod (22) is fixed to a push block (28) at the end away from the slide (21), and a rubber pad is fixed to the outer wall of the push block (28).

7. A multi-stage filtration device for milk processing according to claim 5, characterized in that: The pull block (27) has a pull groove (29) inside.