Fish oil filtering tank
By using a stable connection structure between the metal filter basket and the filter cartridge, the problem of easy damage to the filter bag in the fish oil filtration device is solved, achieving efficient and stable fish oil filtration effect and product quality.
Patent Information
- Application Number
- CN202520214350.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-11
AI Technical Summary
In existing fish oil filtration devices, filter bags are prone to folding, deformation, and damage, leading to clogged filter holes and affecting filtration efficiency and product quality.
The filter basket and filter cartridge are made of metal and are fixed in the tank by a locking mechanism to achieve a stable connection between the filter basket and filter cartridge. The stepped platform and clamping structure ensure that the filter cartridge is easy to install and disassemble, and performs secondary filtration.
It improves filtration efficiency and product quality, reduces the possibility of filter basket damage and clogging, enhances structural stability, facilitates replacement and cleaning, and has wider applicability.
Smart Images

Figure CN223732284U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of fish oil production and processing, and in particular to a fish oil filter tank. Background Technology
[0002] As people's living standards improve, the demand for fish oil, which has anti-inflammatory, cardiovascular disease prevention, and memory-enhancing effects, is gradually increasing. Initially extracted fish oil contains impurities such as fish meat and skin. Fish oil extracted from marine fish needs to be pre-filtered using a screen, and then further filtered using a filtration device.
[0003] Fish oil filtration typically uses bag filters with easily replaceable filter bags. These filters contain a filter cartridge with a removable filter bag. Operators replace the filter bag to ensure a continuous supply of qualified filtrate. However, flexible filter bags have a large shrinkage range and value, making them prone to folding, deformation, and damage. This can lead to clogging of the filter pores during filtration, limiting the filter's operating pressure, pressure differential, temperature, and liquid flow rate. Summary of the Invention
[0004] In order to improve the defect of easy breakage of filter bags in fish oil filtration devices, this application provides a fish oil filtration tank.
[0005] This application provides a fish oil filter canister, which adopts the following technical solution:
[0006] A fish oil filter canister includes a canister body, a cap disposed on the canister body, and a filter cartridge disposed within the canister body. A filter basket is detachably connected inside the filter cartridge. A locking mechanism for connecting the filter basket is provided inside the canister body. The filter basket is made of metal.
[0007] By adopting the above technical solution, the locking mechanism can fix the filter cartridge and filter basket inside the tank. Both the filter basket and filter cartridge are detachable for easy replacement and cleaning. The filter cartridge can perform secondary filtration of fish oil and also supports the filter basket, improving structural stability. After the fish oil raw material enters the tank, it flows out through the filter basket and filter cartridge. The filter basket, made of hard metal material, has high rigidity and is not easily deformed or damaged. Furthermore, the filter basket has few limitations on the pressure, pressure difference, temperature, and fluid flow rate inside the tank, making it widely applicable and thus improving filtration efficiency.
[0008] Optionally, the inner wall of the tank is provided with an annular stepped platform, the stepped platform is provided with a stepped groove and a positioning groove communicating with the stepped groove, the opening of the filter cartridge extends outward to a first edge, the first edge is provided with a positioning part, the first edge is engaged with the stepped groove, and when the positioning part is engaged with the positioning groove, it can restrict the filter cartridge from rotating along the axis.
[0009] By adopting the technical scheme, the filter cartridge is directly placed on the stepped table, and then the filter basket is fixedly connected through the locking mechanism after being installed, so that the installation is convenient and fast, the positioning portion on the filter cartridge is connected in the positioning groove on the stepped table to limit the rotation of the filter cartridge, the structural stability is improved, the fixed filter cartridge can make the fluid pass better, and the filtering effect of the fluid is improved.
[0010] Optionally, the locking mechanism comprises a second edge extending outward from the opening of the filter basket, a plurality of clamping portions extending outward in the circumferential direction of the second edge, an annular clamping groove is formed in the inner wall of the stepped table, a gap groove vertically communicating with the clamping groove is formed in the side of the stepped table close to the opening of the tank body, the clamping portions are clamped in the clamping groove through the gap groove, and the bottom surface of the second edge abuts against the top surface of the first edge.
[0011] By adopting the technical scheme, the filter basket is installed after the filter cartridge is installed, specifically, the clamping portions on the filter basket are clamped in the clamping groove by rotating the filter basket through the gap groove, at this time, the filter basket also presses the filter cartridge downward, so that the filter basket and the filter cartridge are tightly connected with the tank body, and the filtering effect is improved.
[0012] Optionally, the locking mechanism comprises a connecting piece arranged on the side of the stepped table close to the opening of the tank body, a connecting rod abutting against the connecting piece, and a spring arranged at both ends of the connecting rod, the second edge extending outward from the opening of the filter basket, the bottom surface of the second edge abutting against the top surface of the first edge, the end of the spring away from the connecting rod abutting against the second edge, and the spring driving the connecting rod to move toward the connecting piece.
[0013] By adopting the technical scheme, the installation mode of the filter basket can also be arranged as placing the filter basket on the filter cartridge, then compressing the spring by pressing the connecting rod, and then rotating the connecting rod to the connecting piece, releasing the connecting rod, and then abutting the end of the spring against the second edge of the filter basket to drive the end of the connecting rod to abut against the connecting piece, so that the filter basket and the filter cartridge are tightly connected with the tank body.
[0014] Optionally, a limiting groove for clamping the end of the connecting rod is formed in the side of the connecting piece facing the bottom of the tank body.
[0015] By adopting the technical scheme, the spring abuts the connecting rod in the limiting groove, which can reduce the possibility of the connecting rod being separated from the connecting piece under the condition of not being subjected to external force, and make the installation structure of the filter basket and the filter cartridge more stable.
[0016] Optionally, the outer diameter of the filter basket gradually decreases from the opening to the bottom.
[0017] By adopting the technical scheme, the filter basket can be easily put into the filter cartridge, and installation is more convenient and fast. In the filtering process, the fluid is generally deposited at the bottom of the tank body. The outer diameter of the lower end of the filter basket is small, so that the gap between the filter basket and the filter cartridge is larger, facilitating the flow of the fluid, increasing the flow rate, and thus improving the filtering efficiency.
[0018] Optionally, the filter hole of the filter cartridge is smaller than the filter hole of the filter basket.
[0019] By adopting the technical scheme, the fluid enters the tank body, first flows into the filter cartridge through the larger filter hole of the filter basket, then flows out from the smaller filter hole of the filter cartridge, and finally flows out from the discharge port of the tank body, so that secondary filtration can be realized to make the fluid filtering more clear, and the quality of the fluid product is improved.
[0020] Optionally, a handle is arranged at the opening of the filter basket.
[0021] By adopting the technical scheme, the handle facilitates the taking out of the filter basket from the tank body, and the operation is more convenient, so that the speed of replacing the filter basket can be improved, and thus the efficiency of the filtering work is improved.
[0022] In summary, the present application has at least one of the following beneficial effects:
[0023] 1. The filter basket made of hard metal material has large hardness, is not easy to deform and damage, and has small possibility of filter hole blockage, so that the frequency of replacing the filter basket can be reduced, and the working efficiency and filtering effect are improved;
[0024] 2. The filter basket has small limitation on the pressure, pressure difference, temperature and fluid flow in the tank body, and compared with a filter bag, the filtering pipe adopting the filter basket has wider applicability;
[0025] 3. The filter basket and the filter cartridge do not need to be disassembled and assembled by tools, and are convenient to replace and clean;
[0026] 4. The filter basket and the filter cartridge can perform secondary filtration on fish oil, and the locking mechanism can make the structure more stable, so that the fluid filtering is more clear, and the quality of the fluid product is improved. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 is a structural schematic view of a fish oil filtering tank in Embodiment 1 of the present application;
[0028] Figure 2 is a sectional view of the installation of the filter cartridge in Embodiment 1 of the present application;
[0029] Figure 3 is a sectional view of the fish oil filtering tank in Embodiment 1 of the present application;
[0030] Figure 4 is a structural schematic view of the filter basket in Embodiment 1 of the present application;
[0031] Figure 5 is a sectional view of the fish oil filtering tank in Embodiment 2 of the present application.
[0032] Explanation of reference numerals: 1, tank body; 11, feed inlet; 12, discharge outlet; 2, stepped platform; 21, stepped groove; 22, positioning groove; 23, clamping groove; 24, accommodation groove; 3, cover; 4, filter cartridge; 41, first rim; 42, positioning portion; 5, filter basket; 51, second rim; 52, clamping portion; 53, handle; 6, locking mechanism; 61, connecting piece; 62, limiting groove; 63, connecting rod; 64, spring; 7, first sealing member; 8, second sealing member. DETAILED DESCRIPTION
[0033] The following will be described in detail with reference to the accompanying drawings. Figures 1-5 The present application will be described in further detail.
[0034] Embodiment 1
[0035] With reference to Figure 1 , the present application discloses a fish oil filtering tank, comprising a tank body 1, a cover 3 arranged on the tank body 1, and a filter cartridge 4 arranged in the tank body 1, wherein the filter cartridge 4 is detachably connected with a filter basket 5, the bottom of the filter basket 5 abuts against the inner wall of the filter cartridge 4, and the tank body 1 is provided with a locking mechanism 6 for connecting the filter basket 5, wherein the filter basket 5 is made of metal material, which can be selected from stainless steel, nickel wire, brass, etc.
[0036] With reference to Figure 1 , the top of the tank body 1 is provided with a feed inlet 11, and the bottom is provided with a discharge outlet 12, the cover 3 is provided with a pressure gauge and a thermometer communicating with the inside of the tank body 1, and the connection between the cover 3 and the tank body 1 adopts the prior art, so no further description is given. The filter cartridge 4 and the filter basket 5 are both provided with filter holes, and the filter holes of the filter cartridge 4 are smaller than those of the filter basket 5, so that secondary filtration of fluid can be achieved.
[0037] With reference to Figure 2 , the installation mode of the filter cartridge 4 is as follows: the inner wall of the tank body 1 is provided with an annular stepped platform 2 below the feed inlet 11, the stepped platform 2 is provided with an annular stepped groove 21, the side wall of the stepped groove 21 is provided with a plurality of positioning grooves 22, the positioning grooves 22 penetrate through the top surface of the stepped platform 2, the opening of the filter cartridge 4 horizontally extends outward to form a first rim 41, the first rim 41 is provided with a positioning portion 42, the positioning portion 42 can extend along the circumference of the first rim 41, the filter cartridge 4 is placed in the tank body 1 so that the first rim 41 is fitted and overlapped in the stepped groove 21 and the positioning portion 42 is fitted and connected in the positioning groove 22, thereby being able to limit the rotation of the filter cartridge 4 along the axis, the structure is more stable, and the filtering effect can be improved.
[0038] With reference to Figure 3 and Figure 4, the filter basket 5 is installed in the filter cylinder 4, specifically, the opening of the filter basket 5 extends outwards with a second rim 51 to be placed on the first rim 41, in order to facilitate disassembly, the outer diameter of the filter basket 5 gradually decreases from the opening to the bottom, and a handle 53 is welded at the opening of the filter basket 5.
[0039] With reference to Figure 3 , the locking mechanism 6 in the embodiment includes a plurality of clamping portions 52 extending in the circumferential direction of the second rim 51, the clamping portions 52 can be symmetrically arranged as two, the inner wall of the stepped platform 2 is provided with an annular clamping groove 23, the height of the clamping groove 23 is consistent with the thickness of the clamping portion 52, and the side of the stepped platform 2 close to the opening of the tank body 1 is provided with a relief groove 24 vertically communicating with the clamping groove 23, the relief groove 24 is provided with two corresponding clamping portions 52 and can pass through the clamping portions 52. After the clamping portion 52 vertically passes through the relief groove 24, the filter basket 5 is rotated to make the clamping portion 52 clamped into the clamping groove 23, at this time, the filter basket 5 also presses the filter cylinder 4 downwards, so as to realize the close connection of the filter basket 5, the filter cylinder 4 and the tank body 1.
[0040] In addition, with reference to Figure 3 , in order to reduce the possibility of unfiltered fluid directly flowing to the discharge port 12, the filter cylinder 4 is externally sleeved with a first sealing member 7 abutting against the first rim 41, and the filter basket 5 is externally sleeved with a second sealing member 8 abutting against the second rim 51, and the first sealing member 7 and the second sealing member 8 can be provided as sealing gaskets made of rubber or waterproof cotton material.
[0041] The implementation principle of the embodiment 1 of the application is as follows:
[0042] During installation, the first sealing member 7 is sleeved on the filter cylinder 4, then the filter cylinder 4 is placed into the stepped platform 2 in the tank body 1 through the positioning portion 42 corresponding to the positioning groove 22, then the second sealing member 8 is sleeved on the filter basket 5, then the filter basket 5 is placed on the filter cylinder 4 through the clamping portion 52 corresponding to the relief groove 24, and finally the clamping portion 52 is made to enter the clamping groove 23 by rotating the filter basket 5, so as to complete the installation of the filter basket 5 and the filter cylinder 4. When the filter basket 5 needs to be replaced, the clamping portion 52 is made to be at the position of the relief groove 24 by rotating the filter basket 5, and then the filter basket 5 is taken out, which is convenient and fast.
[0043] Embodiment 2:
[0044] With reference to Figure 5The difference between the embodiment 2 and the embodiment 1 is that the locking mechanism 6 comprises a connecting piece 61 arranged on the stepped table 2 near the opening of the tank 1, a connecting rod 63 abutting against the connecting piece 61, and springs 64 arranged at two ends of the connecting rod 63. The connecting piece 61 has a bent portion arranged as a hook with the opening facing the tank 1. In order to improve the stability of the mounting structure, a limiting groove 62 is arranged on the side of the bent portion facing the bottom of the tank 1 for clamping the end of the connecting rod 63. The end of the spring 64 away from the connecting rod 63 abuts against the second edge 51 of the filter basket 5. The spring 64 drives the connecting rod 63 to move towards the connecting piece 61 so that the connecting piece 61 is clamped in the limiting groove 62.
[0045] The implementation principle of the embodiment 2 of the present application is as follows:
[0046] When the filter basket 5 is mounted, the filter basket 5 is first placed in the filter cylinder 4, then the connecting rod 63 is placed on the filter basket 5 and pressed downward to compress the spring 64, the connecting rod 63 is rotated to below the connecting piece 61, and the spring 64 of the connecting rod 63 is released to drive the end of the connecting rod 63 to abut against the connecting piece 61, so as to realize the close connection of the filter basket 5, the filter cylinder 4 and the tank 1.
[0047] The above are the preferred embodiments of the present application, but do not limit the protection scope of the present application. Therefore, any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A fish oil filtration tank characterized by: The filter cartridge (4) is detachably connected with a filter basket (5), and the filter basket (5) is made of a metal material. An annular stepped platform (2) is arranged on the inner wall of the can body (1), the stepped platform (2) is provided with a stepped groove (21) and a positioning groove (22) communicated with the stepped groove (21), the opening of the filter cartridge (4) extends outwardly to a first edge (41), the first edge (41) is provided with a positioning portion (42), the first edge (41) is connected in the stepped groove (21), and the positioning portion (42) is connected in the positioning groove (22) to limit rotation of the filter cartridge (4) along an axis. The locking mechanism (6) comprises a second edge (51) extending outwardly from the opening of the filter basket (5), a plurality of clamping portions (52) extending axially from the second edge (51), an annular clamping groove (23) arranged on the inner wall of the stepped platform (2), a relief groove (24) arranged on the side of the stepped platform (2) close to the opening of the can body (1) and vertically communicated with the clamping groove (23), and the clamping portions (52) are clamped into the clamping groove (23) through the relief groove (24), and the bottom surface of the second edge (51) abuts against the top surface of the first edge (41).
2. The fish oil filtration canister of claim 1, wherein: The locking mechanism (6) comprises a connecting piece (61) arranged on the side of the stepped platform (2) close to the opening of the can body (1), a connecting rod (63) abutting against the connecting piece (61), and springs (64) arranged at both ends of the connecting rod (63), the opening of the filter basket (5) extends outwardly to a second edge (51), the bottom surface of the second edge (51) abuts against the top surface of the first edge (41), one end of the spring (64) away from the connecting rod (63) abuts against the second edge (51), and the spring (64) drives the connecting rod (63) to move towards the connecting piece (61).
3. A fish oil filter can according to claim 2, characterized in that: The connecting piece (61) is provided with a limiting groove (62) on the side towards the bottom of the can body (1) for clamping the end of the connecting rod (63).
4. The fish oil filtration canister of claim 1, wherein: The outer diameter of the filter basket (5) gradually decreases from the opening to the bottom.
5. The fish oil filtration canister of claim 1, wherein: The filter hole of the filter cartridge (4) is smaller than the filter hole of the filter basket (5).
6. The fish oil filtration canister of claim 1, wherein: A handle (53) is arranged at the opening of the filter basket (5).