Impurity filtering device and fluid medium channel assembly

Abstract

The utility model discloses an impurity filtering device and a fluid medium channel assembly, and relates to the technical field of filters. The two conveying parts are respectively a fluid input part and a fluid output part, one of the fluid input part and the fluid output part is provided with a first flow channel and a second flow channel which are communicated, the other one is provided with a third flow channel, one end of the first flow channel far away from the second flow channel is a first conveying port, and one end of the third flow channel is a second conveying port; a fourth flow channel and a fifth flow channel of the transfer joint are communicated with each other; in the filtering assembly, filtering holes communicated with a pipe cavity of a filtering pipe are formed in the peripheral surface of the filtering pipe, and the filtering pipe is sleeved with a sleeve to form a sixth flow channel communicated with the filtering holes; at least one filtering assembly is arranged between the two conveying parts, the conveying parts are connected with the filtering assemblies close to the conveying parts, so that the second flow channel is communicated with the sixth flow channel, and the third flow channel is communicated with the pipe cavity; any two adjacent filter assemblies are detachably provided with transfer joints, the pipe cavity of one of the two filter assemblies is communicated with the fourth flow channel, and the sixth flow channel of the other filter assembly is communicated with the fifth flow channel. The filtering effect can be adjusted according to different filtering standards.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to an impurity filtration device and a fluid medium channel assembly. Background Technology

[0002] Solid impurities in fluids such as gases and liquids can cause wear and tear on pipes, valves, and mechanical components, or affect the purity of the fluid, thus requiring impurity filtration. However, existing impurity filtration devices for liquid and gas circuits have the following problems: poor filtration efficiency and inability to meet the filtration standards required for different application scenarios. Therefore, existing impurity filters for fluids need further improvement. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an impurity filtration device and a fluid medium channel assembly, capable of adjusting the filtration effect according to the filtration standards of different application scenarios.

[0004] The first aspect of this utility model provides an impurity filtration device, which includes:

[0005] The conveying unit has two parts, namely a fluid input part and a fluid output part. One of the two conveying units has a first flow channel and a second flow channel that are connected to each other, and the other has a third flow channel. The end of the first flow channel away from the second flow channel is the first conveying port, and the end of the third flow channel is the second conveying port.

[0006] The transfer joint is equipped with a fourth and fifth flow channels that are connected.

[0007] A filter assembly includes a filter tube and a sleeve. The filter tube has a cavity and a plurality of filter holes communicating with the cavity are provided on the outer peripheral surface of the filter tube. The sleeve is fitted onto the filter tube so that a sixth flow channel communicating with the filter holes is formed between the sleeve and the filter tube.

[0008] At least one filter assembly is provided between the two conveying sections, and each conveying section is connected to the filter assembly closest to it so that the second flow channel is connected to the sixth flow channel, the third flow channel is connected to the cavity, and the transfer joint is detachably connected between any two adjacent filter assemblies. The cavity of one of the two filter assemblies is connected to the fourth flow channel, and the sixth flow channel of the other is connected to the fifth flow channel.

[0009] The impurity filtration device according to the first aspect of this utility model has at least the following beneficial effects: Since the transfer joint and the filter components are detachably connected, the number of filter components and transfer joints can be increased or decreased according to the filtration requirements of different application scenarios. The more filter components, the better the filtration effect. After the two conveying parts, all filter components and all transfer joints are assembled, if the first conveying port is used as the fluid inlet and the second conveying port is used as the fluid outlet, the fluid flowing in from the first conveying port will flow sequentially along the first flow channel, the second flow channel and the sixth flow channel, and flow into the cavity through the filter holes, thereby completing one impurity filtration operation. Depending on the filtration requirements, the fluid flowing out of the cavity can directly flow into the third flow channel and flow out through the second conveying port, or flow into the next filter component through the transfer joint for the next impurity filtration. The fluid flowing out of the cavity of the last filter component will flow out along the third flow channel, so that the purity of the output fluid meets the standard and satisfies the filtration standard requirements of the current application scenario.

[0010] In some embodiments of this utility model, the filter tube and the transfer connector are sleeved together, and the sleeve and the transfer connector are rotatably snapped together.

[0011] In some embodiments of this utility model, one of the adapter and the sleeve is provided with a protrusion, and the other is provided with a slot, wherein the protrusion can be rotatably and snapped into the slot; and / or,

[0012] A first seal is provided between the sleeve and the transfer joint.

[0013] In some embodiments of this utility model, the two conveying sections, all the filter components, and all the transfer joints are arranged along the axial direction of the filter tube.

[0014] In some embodiments of this utility model, the filter tube and the sleeve are coaxially arranged, the sixth flow channel is annular when viewed along the axial direction of the filter tube, and a plurality of filter holes are evenly arranged along the circumference of the filter tube.

[0015] In some embodiments of this utility model, the fourth flow channel extends along the axial direction of the filter tube, the fifth flow channel is disposed perpendicular to the fourth flow channel, and at least one fifth flow channel is provided; the first flow channel extends along the axial direction of the filter tube, the second flow channel is disposed perpendicular to the first flow channel, and at least one second flow channel is provided; the third flow channel extends along the axial direction of the filter tube.

[0016] In some embodiments of this utility model, the first flow channel, the third flow channel, the fourth flow channel, and the cavity are arranged coaxially.

[0017] In some embodiments of this utility model, the conveying part is sleeved with the filter tube, and the conveying part is rotatably snapped with the sleeve.

[0018] In some embodiments of this utility model, a second sealing element is provided between the conveying part and the sleeve.

[0019] A second aspect of this invention provides a fluid medium channel assembly, which includes the impurity filtration device as described in the first aspect embodiment.

[0020] The fluid medium channel assembly according to the second aspect of the present invention has at least the following beneficial effects: the impurity filtration device with the above-described structure can adjust the number of filter components and intermediate connectors according to the current filtration needs, thereby adjusting the impurity filtration performance so that the filtered fluid can meet the current purity requirements, thereby providing qualified fluid.

[0021] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the impurity filtration device provided according to an embodiment of the present utility model;

[0023] Figure 2 This is a cross-sectional schematic diagram of the impurity filtration device provided according to an embodiment of the present utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the impurity filtration device provided according to an embodiment of the present utility model after omitting the sleeve;

[0025] Figure 4 This is a cross-sectional view of the impurity filtration device provided according to an embodiment of the present invention, with the sleeve removed.

[0026] Figure 5 This is a three-dimensional structural diagram of the sleeve provided according to an embodiment of the present utility model.

[0027] Reference numerals: 100, fluid inlet; 110, first flow channel; 120, second flow channel; 130, first sealing groove; 140, first locking block; 200, sleeve; 210, cavity; 220, slot; 300, transfer connector; 310, fifth flow channel; 320, second sealing groove; 330, second locking block; 340, fourth flow channel; 400, fluid outlet; 410, third sealing groove; 420, third flow channel; 500, filter tube; 510, lumen; 600, sixth flow channel. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that features specified as "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The following is for reference. Figures 1 to 5 This invention describes an impurity filtration device and a fluid medium channel assembly provided according to embodiments of the present invention.

[0032] like Figures 1 to 5 As shown, the impurity filtration device according to the first aspect of the present invention can be applied in a fluid medium channel assembly to complete the filtration and purification of fluids such as gas or liquid, thereby effectively removing impurities such as dust and particulate matter contained in the fluid, so that the purity of the fluid reaches the current filtration standard.

[0033] The impurity filtration device in this embodiment can adjust the filtration effect according to the filtration standards of different application scenarios, thereby ensuring that the outflowing fluid meets the usage or discharge requirements of the current application scenario.

[0034] The structure of the impurity filtration device includes a conveying section, a filtration assembly, and a transfer joint 300.

[0035] There are two conveying sections, namely a fluid input section 100 and a fluid output section 400.

[0036] The fluid inlet 100 is provided with a first flow channel 110 and a second flow channel 120, wherein the first flow channel 110 and the second flow channel 120 are interconnected, and the end of the first flow channel 110 away from the second flow channel 120 is a first delivery port. It is understood that the first delivery port serves as a fluid inlet, allowing external fluid to flow into the first flow channel 110. The structure, size, and material of the fluid inlet 100 can be designed according to actual needs and are not specifically limited here. The first flow channel 110 has a first port at each opposite end, and the second flow channel 120 has a second port at each opposite end. One of the first ports is connected to one of the second ports, so that the first flow channel 110 and the second flow channel 120 are connected, and the other first port is the first delivery port. The number of first delivery ports is not limited to one, and the number of second ports in the second flow channel 120 away from the first flow channel 110 is also not limited to one.

[0037] The fluid output unit 400 has a third flow channel 420, one end of which is a second conveying port. Understandably, the second conveying port serves as a fluid outlet, facilitating the flow of filtered fluid out of the third flow channel 420. The structure, dimensions, and materials of the fluid output unit 400 can be designed according to actual needs and are not specifically limited here. Both opposite ends of the third flow channel 420 are provided with third ports, one of which is the second conveying port; the number of second conveying ports is not limited to one. The fluid flowing out of the second conveying port of the fluid output unit 400 can be discharged externally, meeting current emission standards. The fluid flowing out of the second conveying port of the fluid output unit 400 can also flow to the next process, meeting current fluid usage standards.

[0038] Of course, it is not excluded that in other embodiments, the fluid output section 400 is provided with a first flow channel 110 and a second flow channel 120, and the fluid input section 100 is provided with a third flow channel 420. In this case, the first conveying port of the first flow channel 110 serves as a fluid outlet, which facilitates the flow of filtered fluid out of the first flow channel 110, and the second conveying port of the third flow channel 420 serves as a fluid inlet, which facilitates the flow of external fluid into the third flow channel 420.

[0039] The transfer connector 300 has a fourth flow channel 340 and a fifth flow channel 310, which are interconnected. It is understood that the structure, size, and material of the transfer connector 300 can be designed according to actual needs and are not specifically limited here. The function of the transfer connector 300 is to connect two filter components so that the fluid after one filtration can enter the next filter component for further filtration.

[0040] The filter assembly includes a filter tube 500 and a sleeve 200, which are arranged in a one-to-one correspondence. The filter tube 500 has a cavity 510 that extends axially through the filter tube 500. The outer circumferential surface of the filter tube 500 has several filter holes, all of which are interconnected with the cavity 510. The function of the filter holes is to filter impurities in the fluid. The sleeve 200 is fitted onto the filter tube 500, forming a sixth flow channel 600 between the sleeve 200 and the filter tube 500. The sixth flow channel 600 is connected to the filter holes, and the sixth flow channel 600 and the filter holes are arranged opposite each other radially in the filter tube 500.

[0041] Understandably, the structure, shape, material, number, shape, and inner diameter of the filter tube 500 and sleeve 200 can be designed according to actual needs. The cavity 510 can be cylindrical or prismatic, etc. The filter tube 500 and sleeve 200 can be concentrically or eccentrically arranged, both ensuring a certain size gap between the outer circumferential surface of the filter tube 500 and the inner circumferential surface of the sleeve 200; this gap is the sixth flow channel 600. The function of the filter assembly is to filter impurities contained in the fluid. In the assembled impurity filtration device, the number of filter assemblies is always one more than the number of intermediate connectors 300.

[0042] In this embodiment, the filter tube 500 has a circular cross-sectional shape, and the sleeve 200 also has a circular cross-sectional shape. The filter tube 500 and the sleeve 200 are coaxially arranged, so the sixth flow channel 600 appears annular when viewed along the axial direction of the filter tube 500. Several filter holes are evenly arranged along the circumference of the filter tube 500, and the filter holes are circular holes. The filter tube 500 can be a cylindrical filter screen.

[0043] At least one filter assembly is provided between the two conveying sections, and each conveying section is connected to the filter assembly adjacent to it, so that the second flow channel 120 is connected to the sixth flow channel 600 and the third flow channel 420 is connected to the cavity 510. Specifically, at least one filter assembly is provided between the fluid inlet section 100 and the fluid outlet section 400, and the fluid inlet section 100 is connected to the filter assembly adjacent to it, so that the second flow channel 120 and the sixth flow channel 600 are interconnected, and the fluid outlet section 400 is connected to the filter assembly adjacent to it, so that the third flow channel 420 is interconnected with the cavity 510.

[0044] A transfer connector 300 is detachably connected between any two adjacent filter components. Furthermore, the lumen 510 of one of the filter components is connected to the fourth flow channel 340 of the transfer connector 300, and the sixth flow channel 600 of the other filter component is connected to the fifth flow channel 310 of the same transfer connector 300. It is understood that the transfer connector 300 and the filter components can be connected by a detachable method such as a screw or threaded connection, facilitating the installation and removal of the transfer connector 300 from the filter components. This allows for the increase or decrease of the number of filter components and the number of transfer connectors 300 according to the required filtration performance.

[0045] In one specific embodiment, there is one filter assembly. One end of the filter assembly is fixedly connected to the fluid inlet 100, and the other end is fixedly connected to the fluid outlet 400. In this case, there is no need to set up an intermediate connector 300. Then, the fluid flows sequentially from the first delivery port of the fluid inlet 100 to the first flow channel 110 and the second flow channel 120. The fluid flowing out of the second flow channel 120 flows into the sixth flow channel 600 and flows into the cavity 510 of the filter tube 500 through the filter holes. At this time, the filter holes can perform a good impurity filtration effect, so that the fluid can be filtered once. The fluid flowing out of the cavity 510 flows into the third flow channel 420 of the fluid outlet 400 and flows outward through the second delivery port.

[0046] In another specific embodiment, there are two filter components and one adapter 300. One end of one filter component is fixedly connected to one end of the fluid input section 100, and the other end of the filter component is detachably connected to one end of the adapter 300. One end of the other filter component is detachably connected to the other end of the adapter 300, and the other end of the filter component is fixedly connected to one end of the fluid output section 400. In this case, the first delivery port is located at the other end of the fluid input section 100, and the second delivery port is located at the other end of the fluid output section 400.

[0047] The fluid flowing in through the first inlet of the fluid inlet 100 will sequentially flow through the first channel 110 and the second channel 120, and enter the sixth channel 600 of the first filter assembly. Then, the fluid flows through the filter holes into the cavity 510 of the first filter tube 500. At this time, the impurities in the fluid are removed by the filtering effect of the filter holes, thereby achieving primary filtration of the fluid. Then, the fluid flowing out of the cavity 510 of the first filter assembly will sequentially flow through the fourth channel 340 and the fifth channel 310 of the transfer connector 300, and enter the sixth channel 600 of the second filter assembly. Then, the fluid flows through the filter holes into the cavity 510 of the second filter tube 500. At this time, the impurities contained in the fluid are filtered out by the filtering effect of the filter holes, thereby achieving secondary filtration of the fluid. The fluid flowing out of the cavity 510 of the second filter tube 500 will flow into the third channel 420 of the fluid outlet 400 and flow out from the second inlet.

[0048] Of course, external fluid can also flow into the third flow channel 420 and the filtered fluid can flow out from the first flow channel 110, that is, the flow direction of the fluid is opposite to the flow direction of the fluid in the specific embodiment described above.

[0049] In some examples, in the assembled impurity filtration device, all filter tubes 500 have the same pore size. In other examples, in the assembled impurity filtration device, each filter tube 500 has filter pores of the same pore size, and the pore sizes of all filter tubes 500 are different, with the pore sizes of all filter tubes 500 increasing or decreasing sequentially along the axial direction of the filter tubes 500. In this way, the fluid can be filtered stepwise to gradually remove impurities of different particle sizes from the fluid.

[0050] When using the impurity filtration device provided in the first aspect of this utility model, since the intermediate connector 300 and the filter components are detachably connected, the user can select the number of filter components and the number of intermediate connectors 300 according to the filtration standards of different application scenarios during the assembly process of the impurity filtration device, so as to assemble an impurity filtration device with good filtration performance, thereby enabling the fluid treated by the impurity filtration device to meet the standards. The more filter components there are, the better the filtration effect.

[0051] When the fluid inlet 100, all filter components, all transfer connectors 300, and fluid outlet 400 are assembled together, if the first delivery port is used as the fluid inlet and the second delivery port as the fluid outlet, then the fluid flowing in from the first delivery port will flow sequentially through the first flow channel 110, the second flow channel 120, and the sixth flow channel 600, and flow into the cavity 510 of the filter tube 500 through the filter holes to perform one impurity filtration. The fluid flowing out from the cavity 510 of the filter tube 500 will flow directly out through the second delivery port of the fluid outlet 400 according to the current filtration requirements, or flow into the next filter component through the transfer connector 300, so that the fluid can undergo multiple filtration processes. Then, the fluid will flow out from the cavity 510 of the last filter component and flow outward along the third flow channel 420 of the fluid outlet 400, so that the purity of the fluid output by the impurity filtration device meets the standards and can meet the filtration standard requirements of the current application scenario.

[0052] In some embodiments, such as Figures 1 to 5 As shown, the filter tube 500 and the transfer connector 300 are nested together, and the sleeve 200 and the transfer connector 300 are rotatably snapped together. Specifically, the outer circumferential surface of the transfer connector 300 is provided with at least one protrusion, and the inner circumferential surface of the sleeve 200 is provided with a groove 220. The grooves 220 and the protrusions are arranged in a one-to-one correspondence, and the protrusions can be rotatably snapped together with the grooves 220.

[0053] Understandably, the filter tube 500 can be fitted onto or inserted into the transfer connector 300. If the transfer connector 300 has multiple protrusions, these protrusions are evenly distributed along the circumference of the transfer connector 300. Similarly, the sleeve 200 also has multiple slots 220, evenly distributed along the circumference of the sleeve 200. When the sleeve 200 is fitted onto the transfer connector 300, the relative rotation between the sleeve 200 and the transfer connector 300 causes the protrusions to engage in the slots 220. Alternatively, the protrusions can be located on the outer circumferential surface of the sleeve 200, and the slots 220 can be located on the transfer connector 300.

[0054] Furthermore, it is not excluded that in other embodiments, the sleeve 200 and the adapter 300 may be detachably connected via a threaded structure. The adapter 300 and the filter tube 500 may also be detachably connected via a threaded structure.

[0055] Furthermore, a first sealing element is provided between the sleeve 200 and the intermediate connector 300. The first sealing element enhances the sealing performance between the sleeve 200 and the intermediate connector 300, preventing fluid leakage from the gap between them. In this case, a sealing element is not required between the filter tube 500 and the intermediate connector 300. The first sealing element is a sealing rubber ring. Of course, a sealing rubber ring can also be provided between the filter tube 500 and the intermediate connector 300.

[0056] In this embodiment, as Figures 2 to 5 As shown, the adapter 300 has protrusions at opposite ends along its axial direction. These protrusions are second locking blocks 330. There are two second locking blocks 330, which are arranged circumferentially along the circumference of the adapter 300. Correspondingly, the sleeve 200 has a cavity 210 that extends through the sleeve 200 along its axial direction. The inner circumferential surface of the cavity 210 is recessed to form a locking groove 220. The locking groove 220 is L-shaped and has an opening so that the second locking block 330 can enter the locking groove 220 through the opening when the adapter 300 and the sleeve 200 are connected. Then, by rotating the adapter 300 clockwise relative to the sleeve 200, the second locking block 330 and the locking groove 220 are locked together. When it is necessary to disassemble the adapter 300 and the sleeve 200, the adapter 300 is driven to rotate counterclockwise relative to the sleeve 200, causing the second locking block 330 to rotate to the opening of the locking slot 220, thus removing the adapter 300 from the sleeve 200. This design allows for quick assembly and disassembly of the adapter 300 and the sleeve 200 without the need for auxiliary tools, making the operation simple and convenient.

[0057] The transfer joint 300 is also provided with a second sealing groove 320 at both opposite ends along its axial direction. The second sealing groove 320 is located on the side of the second locking block 330 away from the center of the transfer joint 300. When viewed along the axial direction of the transfer joint 300, the second sealing groove 320 is annular and can provide a space for the sealing rubber ring.

[0058] In some embodiments, such as Figures 1 to 4 As shown, the two conveying sections, all the filter components, and all the transfer joints 300 are arranged along the axial direction of the filter tube 500, thus enabling the assembly of a long, straight impurity filtration device. Specifically, if there are two filter components and one transfer joint 300, the fluid inlet 100, the first filter component, the transfer joint 300, the second filter component, and the fluid outlet 400 are sequentially fixedly connected along the axial direction of the filter tube 500 to assemble the impurity filtration device.

[0059] Furthermore, the fourth flow channel 340 of the transfer connector 300 extends along the axial direction of the filter tube 500, and the fifth flow channel 310 of the transfer connector 300 is arranged perpendicular to the fourth flow channel 340, and at least one fifth flow channel 310 is provided. It is understood that if there is only one fifth flow channel 310, then the fourth flow channel 340 and the fifth flow channel 310 are connected to form an L-shaped flow channel structure. If there are two or more fifth flow channels 310, then all the fifth flow channels 310 are symmetrically arranged about the extension direction of the fourth flow channel 340. Of course, the fifth flow channel 310 and the fourth flow channel 340 can also be non-perpendicular, that is, the extension direction of the fifth flow channel 310 forms a certain acute angle with the extension direction of the fourth flow channel 340.

[0060] The first flow channel 110 of the fluid inlet 100 extends axially along the filter tube 500, and the second flow channel 120 of the fluid inlet 100 is provided perpendicular to the first flow channel 110. Furthermore, at least one second flow channel 120 is provided. It is understood that if there is only one second flow channel 120, the first flow channel 110 and the second flow channel 120 are connected to form an L-shaped flow channel structure. If there are two or more second flow channels 120, all the second flow channels 120 are symmetrically arranged about the extending direction of the first flow channel 110. Of course, the first flow channel 110 and the second flow channel 120 can also be non-perpendicular, that is, the extending direction of the second flow channel 120 forms a certain acute angle with the extending direction of the first flow channel 110.

[0061] In this embodiment, there are two second flow channels 120, and the first flow channel 110 is perpendicularly connected to all the second flow channels 120, forming a T-shaped flow channel structure together. Similarly, there are two fifth flow channels 310, and the fourth flow channel 340 is perpendicularly connected to all the fifth flow channels 310, forming a T-shaped flow channel structure together.

[0062] The third flow channel 420 of the fluid outlet 400 extends along the axial direction of the filter tube 500. In this embodiment, as... Figure 2 and Figure 4 As shown, the first flow channel 110 of the fluid input section 100, the third flow channel 420 of the fluid output section 400, the fourth flow channel 340 of the intermediate connector 300, and the cavity 510 of the filter tube 500 are arranged coaxially.

[0063] It is understandable that the first flow channel 110, the second flow channel 120, the third flow channel 420, the fourth flow channel 340, and the fifth flow channel 310 can also be configured with their extension directions in other ways, as long as the fluid can flow and complete the filtration process. Furthermore, it is not excluded that in other embodiments, the extension direction of the fourth flow channel 340 of the transfer connector 300 is L-shaped, making the transfer connector 300 an L-shaped connector as a whole. This allows the two filter components and the transfer connector 300 to connect and together form an L-shaped component, thereby changing the flow direction of the fluid. Therefore, by combining different numbers of transfer connectors 300 and filter components with the fluid inlet 100 and the fluid outlet 400, an impurity filtration device with an irregular structure can be assembled.

[0064] Of course, it is possible that the extension direction of the first flow channel 110 of the fluid inlet 100 and the extension direction of the third flow channel 420 of the fluid outlet 400 are also L-shaped.

[0065] In some embodiments, such as Figures 1 to 5 As shown, the conveying part and the filter tube 500 are sleeved together, and the conveying part and the sleeve 200 are rotatably snapped together. Specifically, the outer circumferential surface of the conveying part may also be provided with at least one protrusion, and the inner circumferential surface of the sleeve 200 is provided with a groove 220, and the protrusion can be rotatably snapped together with the groove 220.

[0066] Understandably, the filter tube 500 can be fitted onto the conveying section or inserted into it. If the conveying section has multiple protrusions, these protrusions are evenly arranged along the circumference of the conveying section, and the sleeve 200 also has multiple slots 220, which are evenly arranged along the circumference of the sleeve 200. When the sleeve 200 is fitted onto the conveying section, the relative rotation between the conveying section and the sleeve 200 drives the protrusions into the slots 220. Alternatively, the outer circumferential surface of the sleeve 200 can have protrusions, and the conveying section can have slots 220.

[0067] When the sleeve 200 and the transfer joint 300 are also connected by a rotatable snap-fit, both ends of the sleeve 200 are provided with a slot 220. Each sleeve 200 has the same specifications, so any sleeve 200 can be rotatably snap-fitted to the transfer joint 300 and the conveying unit.

[0068] Since the filter assembly can be detachably connected to the transfer connector 300, the fluid inlet 100 and the fluid outlet 400, a qualified impurity filtration device can be freely assembled according to actual filtration needs.

[0069] Furthermore, it is not excluded that in other embodiments, the sleeve 200 and the conveying part can be detachably connected by a threaded structure, or by welding, bonding or other methods.

[0070] Furthermore, a second seal is provided between the conveying section and the sleeve 200. The second seal improves the sealing performance between the conveying section and the sleeve 200, preventing fluid leakage from the gap between the sleeve 200 and the conveying section. In this case, a seal is not required between the filter pipe 500 and the conveying section. The second seal can be a sealing rubber ring. Of course, a sealing rubber ring can also be used to seal between the filter pipe 500 and the conveying section.

[0071] In this embodiment, as Figures 2 to 5 As shown, the fluid input section 100 has a protrusion at one end along its axial direction. This protrusion is a first locking block 140. There are two first locking blocks 140, which are arranged circumferentially along the circumference of the fluid input section 100. Correspondingly, the cavity 210 of the sleeve 200 has an L-shaped locking groove 220 with an opening, so that the first locking block 140 enters the locking groove 220 through the opening when the fluid input section 100 and the sleeve 200 are connected. Then, by rotating the fluid input section 100 clockwise relative to the sleeve 200, the first locking block 140 and the locking groove 220 are locked together. When it is necessary to separate the fluid input section 100 from the sleeve 200, the fluid input section 100 is driven to rotate counterclockwise relative to the sleeve 200, so that the first locking block 140 rotates to the opening of the locking groove 220, and the fluid input section 100 can be detached from the sleeve 200.

[0072] Similarly, the fluid output section 400 has a protrusion at one end along its axial direction. This protrusion is a third locking block. There are two third locking blocks, which are evenly arranged around the circumference of the fluid output section 400. Like the fluid input section 100, the fluid output section 400 can be rotated and latched to the slot 220 of the sleeve 200 through the third locking block.

[0073] The fluid input section 100 is also provided with a first sealing groove 130 at one end along its axial direction. The first sealing groove 130 is located on the side of the first locking block 140 away from the first delivery port. Viewed along the axial direction of the fluid input section 100, the first sealing groove 130 is annular in shape and can provide an installation position for the sealing rubber ring. Similarly, the fluid output section 400 is also provided with a third sealing groove 410 at one end along its axial direction. The third sealing groove 410 is located on the side of the third locking block away from the second delivery port. Viewed along the axial direction of the fluid output section 400, the third sealing groove 410 is annular in shape and can be installed in the third sealing groove 410.

[0074] like Figure 2 and Figure 4 As shown, the first flow channel 110 of the fluid inlet 100 is stepped, and the first delivery port can be fixedly connected to an external pipe. Similarly, the third flow channel 420 of the fluid outlet 400 is stepped, and the second delivery port can be connected to an external pipe.

[0075] like Figures 1 to 5 As shown, the fluid medium channel assembly according to a second aspect embodiment of the present invention includes an impurity filtration device as described in the first aspect embodiment.

[0076] It is understandable that the fluid medium channel assembly may include components such as conveying pipes and valves, in addition to impurity filtration devices. The fluid inlet 100 can be connected to one conveying pipe, and the fluid outlet 400 can be connected to another conveying pipe, so that the fluid flowing out of the conveying pipe enters through the fluid inlet 100, undergoes one or more filtration processes, and then flows out from the fluid outlet 400 to another conveying pipe, allowing the filtered fluid to be effectively utilized in the next process or directly discharged to the outside.

[0077] The impurity filtration device with the above-described structure in the fluid medium channel assembly can adjust the number of filter components and intermediate connectors 300 according to the current filtration needs, thereby adjusting the impurity filtration performance so that the filtered fluid can meet the current purity requirements and thus provide qualified fluid.

[0078] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0079] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An impurity filtration device, characterized in that, include: The conveying unit has two parts, namely a fluid input unit (100) and a fluid output unit (400). One of the two conveying units has a first flow channel (110) and a second flow channel (120) that are connected to each other, and the other has a third flow channel (420). The end of the first flow channel (110) away from the second flow channel (120) is a first conveying port, and the end of the third flow channel (420) is a second conveying port. The transfer connector (300) is provided with a fourth flow channel (340) and a fifth flow channel (310) that are connected. A filter assembly includes a filter tube (500) and a sleeve (200). The filter tube (500) has a cavity (510). The outer peripheral surface of the filter tube (500) is provided with a plurality of filter holes communicating with the cavity (510). The sleeve (200) is sleeved on the filter tube (500) so that a sixth flow channel (600) communicating with the filter holes is formed between the sleeve (200) and the filter tube (500). At least one filter assembly is provided between the two conveying units, and each conveying unit is connected to the filter assembly adjacent to it so that the second flow channel (120) is connected to the sixth flow channel (600), the third flow channel (420) is connected to the cavity (510), and the intermediate connector (300) is detachably connected between any two adjacent filter assemblies. The cavity (510) of one of the two filter assemblies is connected to the fourth flow channel (340), and the sixth flow channel (600) of the other is connected to the fifth flow channel (310).

2. The impurity filtration device according to claim 1, characterized in that, The filter tube (500) and the transfer connector (300) are sleeved together, and the sleeve (200) and the transfer connector (300) are rotatably snapped together.

3. The impurity filtration device according to claim 2, characterized in that, One of the adapter (300) and the sleeve (200) is provided with a protrusion, and the other is provided with a slot (220), wherein the protrusion can be rotatably and snapped into the slot (220); and / or, A first seal is provided between the sleeve (200) and the transfer joint (300).

4. The impurity filtration device according to claim 1, characterized in that, The two conveying sections, all the filter components and all the transfer joints (300) are arranged along the axial direction of the filter tube (500).

5. The impurity filtration device according to claim 4, characterized in that, The filter tube (500) and the sleeve (200) are coaxially arranged. The sixth flow channel (600) is annular when viewed along the axial direction of the filter tube (500). A plurality of filter holes are evenly arranged along the circumference of the filter tube (500).

6. The impurity filtration device according to claim 5, characterized in that, The fourth flow channel (340) extends along the axial direction of the filter tube (500), the fifth flow channel (310) is disposed perpendicular to the fourth flow channel (340), and at least one fifth flow channel (310) is provided; the first flow channel (110) extends along the axial direction of the filter tube (500), the second flow channel (120) is disposed perpendicular to the first flow channel (110), and at least one second flow channel (120) is provided; the third flow channel (420) extends along the axial direction of the filter tube (500).

7. The impurity filtration device according to claim 6, characterized in that, The first flow channel (110), the third flow channel (420), the fourth flow channel (340) and the cavity (510) are arranged coaxially.

8. The impurity filtration device according to any one of claims 1 to 3, characterized in that, The conveying part is sleeved with the filter tube (500), and the conveying part is rotatably snapped into the sleeve (200).

9. The impurity filtration device according to claim 8, characterized in that, A second seal is provided between the conveying part and the sleeve (200).

10. A fluid medium channel assembly, characterized in that, Includes the impurity filtration device as described in any one of claims 1 to 9.

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