Filtering device

Abstract

The utility model relates to the technical field of filtering devices, and provides a filtering device which comprises a funnel, the first filter cartridge is arranged in the funnel, and the outer wall of the first filter cartridge abuts against the inner wall of the funnel; the sealing cover is arranged at the opening of the first filter cartridge and is used for sealing the first filter cartridge; the piston rod is vertically and slidably arranged in the center of the sealing cover, and the outer side of one end of the piston rod abuts against the inner wall of the first filter cartridge; the sealing plug is arranged in the liquid inlet and used for sealing the liquid inlet. By means of the technical scheme, the problem that in the prior art, the funnel is low in liquid filtering efficiency is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, and specifically to a filtering device. Background Art

[0002] Liquid filtration device technology is an indispensable and important part of many fields such as industry, water treatment, chemistry, food processing, medicine, environmental protection, beverage manufacturing, biotechnology, energy, etc. It is designed to remove solid particles, suspended matter, microorganisms, colloids, and chemical impurities in liquids to purify water quality or improve product purity. Utility Model Content

[0003] The utility model provides a filtering device, which solves the problem of low efficiency of liquid filtering by a funnel in the related art.

[0004] The technical solution of the utility model is as follows:

[0005] A filtering device, comprising:

[0006] funnel;

[0007] A first filter cartridge, wherein the first filter cartridge is disposed in the funnel, and an outer wall of the first filter cartridge abuts against an inner wall of the funnel;

[0008] A sealing cover, which is arranged at the opening of the first filter cartridge and is used to seal the first filter cartridge;

[0009] A piston rod, wherein the center of the piston rod has a liquid inlet, the piston rod is vertically slidably disposed at the center of the sealing cover, and the outer side of one end of the piston rod abuts against the inner wall of the first filter cylinder;

[0010] A sealing plug is arranged in the liquid inlet and is used for sealing the liquid inlet.

[0011] Optionally, it also includes:

[0012] The first filter cartridge is in contact with the funnel through the second filter cartridge.

[0013] Optionally, the inner side of the funnel is threadedly connected to the outer side of the second filter cartridge, and the inner side of the second filter cartridge is threadedly connected to the outer side of the first filter cartridge.

[0014] Optionally, it also includes:

[0015] A sealing ring is arranged on the lower surface of the sealing cover, and the sealing cover abuts against the first filter cartridge through the sealing ring.

[0016] Optionally, it further comprises a support member, which is arranged on the outer wall of the funnel along the circumference of the funnel axis, and the support member comprises:

[0017] A support rod, one end of which is rotatably mounted on the outer wall of the funnel;

[0018] An elastic member, the elastic member is used in combination with the support rod, and two ends of the elastic member are respectively arranged at the middle of the support rod and the outer wall of the funnel, for providing elastic force for the support rod to approach the funnel;

[0019] An abutment block is arranged at the other end of the support rod.

[0020] Optionally, it also includes:

[0021] a first handle, wherein the first handle is in a certain number and is disposed on the first filter cartridge;

[0022] A second handle, wherein the second handle is in a plurality of numbers and the second handle is arranged on the second filter cartridge.

[0023] The working principle and beneficial effects of the utility model are:

[0024] 1. In the utility model, the funnel body is constructed of durable and high-strength materials, has sufficient volume, and its inner wall surface is smooth, which is convenient for cleaning and maintaining hygiene. The first filter cartridge is placed inside the funnel and fits tightly against the inner wall of the funnel to ensure that there is no gap and prevent leakage of liquid. The sealing cover is located at the opening of the first filter cartridge to ensure that there is no leakage and it is convenient to disassemble and clean. The piston rod is designed to slide vertically on the sealing cover. A liquid inlet is opened in the center of the piston rod. The liquid to be filtered enters the funnel through the liquid inlet. One end of the piston rod abuts against the inner wall of the first filter cartridge. When the filtered liquid enters the first filter cartridge, the piston rod is pressed down to increase the pressure in the first filter cartridge, thereby accelerating the filtration of the liquid and improving the filtration efficiency.

[0025] Specifically, first place the first filter cartridge into the funnel, cover it with filter paper, install the sealing cover and the piston rod, and inject the liquid to be filtered into the first filter cartridge. The advantage of setting the liquid inlet at the center of the piston rod is that it can prevent the funnel from tilting when the liquid is injected. After the injection is completed, the first sealing port is sealed with a sealing plug. After the sealing is completed, the piston rod is pressed down to speed up the filtration speed of the liquid in the first filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0027] Figure 1 It is a schematic diagram of the structure of the utility model;

[0028] Figure 2 It is a cross-sectional view of the structure of the utility model.

[0029] In the figure: 1, funnel, 2, first filter cartridge, 3, sealing cover, 4, piston rod, 5, liquid inlet, 6, sealing plug, 7, second filter cartridge, 8, sealing ring, 9, support member, 10, support rod, 11, elastic member, 12, abutment block, 13, first handle, 14, second handle. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0031] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0032] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0033] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0034] Reference Figure 1~Figure 2 , which is the first embodiment of the utility model, proposes a filtering device, including a funnel 1; a first filter cartridge 2 is arranged in the funnel 1, and the outer wall of the first filter cartridge 2 abuts against the inner wall of the funnel 1; a sealing cover 3 is arranged at the opening of the first filter cartridge 2, and is used to seal the first filter cartridge 2; a piston rod 4 has a liquid inlet 5 at the center, and the piston rod 4 is vertically slidably arranged in the center of the sealing cover 3, and the outer side of one end of the piston rod 4 abuts against the inner wall of the first filter cartridge 2; a sealing plug 6 is arranged in the liquid inlet 5, and is used to seal the liquid inlet 5.

[0035] In this embodiment, the main body of the funnel 1 is constructed of durable and high-strength materials, has sufficient volume, and its inner wall surface is smooth, which is convenient for cleaning and maintaining hygiene. The first filter cylinder 2 is placed inside the funnel 1 and fits tightly against the inner wall of the funnel 1 to ensure that there is no gap and prevent leakage of liquid. The sealing cover 3 is located at the opening of the first filter cylinder 2 to ensure that there is no leakage and to facilitate disassembly and cleaning. The piston rod 4 is designed to slide vertically on the sealing cover 3. A liquid inlet 5 is opened in the center of the piston rod 4. The liquid to be filtered enters the funnel 1 through the liquid inlet 5. One end of the piston rod 4 abuts against the inner wall of the first filter cylinder 2. When the filtered liquid enters the first filter cylinder 2, the piston rod 4 is pressed down to increase the pressure in the first filter cylinder 2, thereby accelerating the filtration of the liquid and improving the filtration efficiency.

[0036] Specifically, first place the first filter cartridge 2 into the funnel 1, cover it with filter paper, install the sealing cover 3 and the piston rod 4, and inject the liquid to be filtered into the first filter cartridge 2. The advantage of setting the liquid inlet 5 at the center of the piston rod 4 is that it can prevent the funnel 1 from tilting when the liquid is injected. After the injection is completed, the liquid inlet 5 is sealed with a sealing plug 6. After the sealing is completed, the piston rod 4 is pressed down to speed up the filtering speed of the liquid in the first filter cartridge 2.

[0037] Furthermore, it also includes a second filter cartridge 7 , and the first filter cartridge 2 abuts against the funnel 1 through the second filter cartridge 7 .

[0038] In this embodiment, a second filter cartridge 7 is added. The addition of the second filter cartridge 7 improves the accuracy of liquid filtration and can better filter impurities in the liquid. Specifically, the second filter cartridge 7 is first placed in the funnel 1, and the first layer of filter paper is laid. Then the first filter cartridge 2 is placed in the second filter cartridge 7, and the second layer of filter paper is laid. After the laying is completed, the sealing cover 3 and the piston rod 4 are installed, and the liquid to be filtered is injected into the first filter cartridge 2. After the injection is completed, the liquid inlet 5 is sealed with a sealing plug 6. After the sealing is completed, the piston rod 4 is pressed down to speed up the filtration speed of the liquid in the first filter cartridge 2.

[0039] Furthermore, the inner side of the funnel 1 is threadedly connected to the outer side of the second filter cartridge 7 , and the inner side of the second filter cartridge 7 is threadedly connected to the outer side of the first filter cartridge 2 .

[0040] In this embodiment, the funnel 1, the first filter cartridge 2, and the second filter cartridge 7 are all connected by threads. This connection method has better sealing performance and prevents liquid leakage.

[0041] Furthermore, it also includes a sealing ring 8 , which is arranged on the lower surface of the sealing cover 3 , and the sealing cover 3 abuts against the first filter cartridge 2 through the sealing ring 8 .

[0042] In this embodiment, a sealing ring 8 is added and arranged on the sealing cover 3. When the sealing cover 3 is installed, the sealing ring 8 abuts against the first filter cartridge 2. The sealing ring 8 is usually made of rubber, which can improve the sealing ability and sealing effect of the sealing cover 3.

[0043] Furthermore, it also includes a support member 9, which is arranged on the outer wall of the funnel 1 along the circumference of the axis of the funnel 1. The support member 9 includes a support rod 10, and one end of the support rod 10 is rotatably arranged on the outer wall of the funnel 1; an elastic member 11 is used in combination with the support rod 10, and both ends of the elastic member 11 are respectively arranged in the middle of the support rod 10 and the outer wall of the funnel 1, which are used to provide elastic force for the support rod 10 to approach the funnel 1; and a contact block 12 is arranged at the other end of the support rod 10.

[0044] In this embodiment, a support member 9 is additionally provided, and the support member 9 includes a support rod 10, an elastic member 11, and an abutment block 12. When the filter device is placed on a liquid holding bottle whose bottle mouth is smaller than the maximum outer diameter of the funnel 1, the support rod 10 is close to the liquid holding bottle under the action of the elastic member 11, so that the abutment block 12 can abut against the outer wall of the liquid holding bottle, so that the filter device will not be skewed when liquid is injected, making the overall structure more stable.

[0045] When the filter device is placed on a liquid holding bottle whose bottle mouth is larger than the maximum outer diameter of the funnel 1, the support rod 10 is rotated away from the funnel 1 to a horizontal position. At this time, the filter device is placed on the liquid holding bottle. Under the action of the elastic member 11, the abutment block 12 will abut against the bottle mouth of the liquid holding bottle, so that the entire filter device is placed on the bottle mouth of the liquid holding bottle to keep it stable and not tilted.

[0046] The advantage of designing the support member 9 is that the filter device can be placed regardless of the size of the opening of the liquid containing bottle below the filter device, and the filter device can be kept stable and will not tilt when liquid is injected.

[0047] Furthermore, it also includes a first handle 13 , which is provided in a plurality of numbers and is disposed on the first filter cartridge 2 ; and a second handle 14 , which is provided in a plurality of numbers and is disposed on the second filter cartridge 7 .

[0048] In this embodiment, a first handle 13 and a second handle 14 are additionally provided, which has the advantage of facilitating rotation when the first filter cartridge 2 and the second filter cartridge 7 are threadedly connected.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A filtering device, characterized in that: include: Funnel (1); A first filter cartridge (2), the first filter cartridge (2) being arranged in the funnel (1), the outer wall of the first filter cartridge (2) abutting against the inner wall of the funnel (1); A sealing cover (3), the sealing cover (3) being arranged at the opening of the first filter cartridge (2) and being used for sealing the first filter cartridge (2); A piston rod (4), wherein the center of the piston rod (4) is provided with a liquid inlet (5), the piston rod (4) is vertically slidably arranged at the center of the sealing cover (3), and the outer side of one end of the piston rod (4) abuts against the inner wall of the first filter cylinder (2); A sealing plug (6), the sealing plug (6) being arranged in the liquid inlet (5) and used for sealing the liquid inlet (5).

2. A filtering device according to claim 1, characterized in that: Also includes: A second filter cartridge (7), wherein the first filter cartridge (2) abuts against the funnel (1) through the second filter cartridge (7).

3. A filtering device according to claim 2, characterized in that: The inner side of the funnel (1) is threadedly connected to the outer side of the second filter cartridge (7), and the inner side of the second filter cartridge (7) is threadedly connected to the outer side of the first filter cartridge (2).

4. A filtering device according to claim 1, characterized in that: Also includes: A sealing ring (8), wherein the sealing ring (8) is arranged on the lower surface of the sealing cover (3), and the sealing cover (3) abuts against the first filter cartridge (2) via the sealing ring (8).

5. A filtering device according to claim 1, characterized in that: It also comprises a support member (9), the support member (9) being arranged on the outer wall of the funnel (1) along the circumference of the axis of the funnel (1), the support member (9) comprising: A support rod (10), one end of the support rod (10) being rotatably disposed on the outer wall of the funnel (1); an elastic member (11), the elastic member (11) being used in combination with the support rod (10), the two ends of the elastic member (11) being respectively arranged at the middle of the support rod (10) and the outer wall of the funnel (1), for providing elastic force for the support rod (10) to approach the funnel (1); An abutment block (12), wherein the abutment block (12) is arranged at the other end of the support rod (10).

6. A filtering device according to claim 2, characterized in that: Also includes: A first handle (13), wherein the first handles (13) are provided in a plurality and are arranged on the first filter cartridge (2); A second handle (14), wherein the second handles (14) are provided in a plurality and the second handles (14) are arranged on the second filter cartridge (7).

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