Anti-blocking filter

Abstract

The utility model relates to the technical field of filters, and discloses an anti-clogging filter which comprises a body, a filter element, a filter element, a first filter element and a second filter element, the fixing base is located in the containing cavity and divides the containing cavity into a liquid inlet cavity and a liquid outlet cavity which are independent from each other, and a liquid inlet communicated with the liquid inlet cavity and a liquid outlet communicated with the liquid outlet cavity are formed in the two ends of the body respectively; the filter assembly comprises a filter tube and a filter element, the filter tube penetrates through the fixed seat, a liquid medicine channel communicated with the liquid outlet cavity is arranged in the filter tube, a filter hole is formed in the filter tube, the filter hole is communicated with the liquid inlet cavity and the liquid medicine channel, and the filter element is connected with the filter tube and covers the filter hole; the residue receiving disc is detachably connected to the side, close to the liquid inlet cavity, of the fixing base, the filter pipe penetrates through the residue receiving disc to be connected with the fixing base, and the residue receiving disc drives the filter pipe and the filter element to move in the direction, away from the fixing base, of the residue receiving disc. The utility model solves the problem that the liquid outlet of the existing filter is easily blocked by impurities.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to an anti-clogging filter. Background Art

[0002] In the process of circuit board production, a variety of liquid medicines are used. When the liquid medicines are circulated, they will be mixed with impurities such as circuit board mask residue and dust. Therefore, the liquid medicines need to be filtered to remove the impurities.

[0003] The existing liquid medicine filter includes a body and a fixing seat detachably mounted in the body, the fixing seat is used to install the filter assembly in the body, when the liquid medicine flows into the body from the liquid inlet and flows through the filter element in the filter assembly, the membrane residue and dust and other impurities are blocked by the filter element and fall onto the fixing seat, and the liquid medicine after filtration flows out of the filter from the liquid outlet on the body to complete the filtration. Since the filter assembly of the above-mentioned filter is mounted on the fixing seat, when the fixing seat is removed for cleaning, the membrane residue and dust and other impurities are easy to fall from the edge of the fixing seat into the bottom of the body, and are deposited in the pipeline along the liquid outlet, causing the liquid outlet to be blocked. Utility Model Content

[0004] The main purpose of the utility model is to provide an anti-clogging filter, aiming to solve the problem that the liquid outlet of the existing filter is easily blocked by impurities such as membrane residues and dust.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an anti-clogging filter, which includes:

[0006] A main body, wherein a receiving cavity is provided in the main body;

[0007] A fixing seat, the fixing seat is located in the accommodating cavity and divides the accommodating cavity into a liquid inlet cavity and a liquid outlet cavity which are independent of each other, and a liquid inlet communicating with the liquid inlet cavity and a liquid outlet communicating with the liquid outlet cavity are respectively provided at two ends of the body;

[0008] A filter assembly, comprising a filter tube and a filter element, wherein the filter tube is inserted through the fixing seat, a liquid medicine channel connected to the liquid outlet cavity is provided in the filter tube, a filter hole is provided on the filter tube, the filter hole is connected to the liquid inlet cavity and the liquid medicine channel, and the filter element is connected to the filter tube and covers the filter hole;

[0009] The slag receiving plate is detachably connected to a side of the fixing seat close to the liquid inlet cavity, the filter tube passes through the slag receiving plate and is connected to the fixing seat, and the slag receiving plate drives the filter tube and the filter element to move in a direction where the slag receiving plate is away from the fixing seat.

[0010] Preferably, a clamping protrusion is provided on one side of the fixing seat close to the slag receiving plate, and a clamping groove is provided on one side of the slag receiving plate close to the fixing seat, and the clamping protrusion is clamped in the clamping groove.

[0011] Preferably, the outer edge of the slag receiving pan extends in a direction away from the fixing seat to the inner wall of the main body to form an inclined surface, and the inclined surface is used to make the liquid medicine on the slag receiving pan flow toward the filter tube.

[0012] Preferably, a handle is provided on a side of the slag receiving pan away from the fixing seat, the handle is located in the liquid inlet cavity, and the handle is extended along the direction of the slag receiving pan away from the fixing seat.

[0013] Preferably, the filter assembly further comprises a pressing member, and the pressing member is located at one end of the filter tube close to the liquid inlet;

[0014] A fixing protrusion is provided on one side of the slag receiving plate close to the filter element, and the fixing protrusion and the pressing member are respectively in contact with two ends of the filter element, so that the filter element is fixed on the filter tube.

[0015] Preferably, the clamping member is a clamping nut, an end of the filter tube close to the liquid inlet is provided with an external thread, and the clamping nut is sleeved on the outside of the filter tube and is threadably connected to the filter tube.

[0016] Preferably, the fixing seat includes a limiting portion, which extends in a direction away from the liquid inlet cavity, and the limiting portion includes a limiting platform protruding toward the filter tube. The filter tube includes an abutting portion, which is located at one end of the filter tube close to the liquid outlet, and the abutting portion abuts against the limiting platform.

[0017] Preferably, the abutment portion includes a first abutment platform and a second abutment platform connected to each other, the inner diameter of the second abutment platform is larger than the inner diameter of the first abutment platform, the side of the first abutment platform away from the second abutment platform abuts against the slag receiving plate, and the side of the second abutment platform away from the first abutment platform abuts against the limiting platform.

[0018] Preferably, a sealing ring is provided on the fixing seat, and the sealing ring is located between the fixing seat and the inner wall of the body.

[0019] Preferably, the fixing seat is provided with an annular groove along the circumferential direction, and the sealing ring portion is located in the annular groove and abuts against the inner wall of the body.

[0020] The technical solution of the utility model adopts a detachable slag receiving plate to drive the filter tube and the filter element to move in the direction of the slag receiving plate away from the fixed seat, so that the film residue, dust and other impurities generated on the filter element after the liquid is filtered are taken out together with the slag receiving plate, thereby avoiding the problem that the film residue, dust and other impurities easily fall from the edge of the fixed seat to the bottom of the main body and are deposited in the pipeline along the liquid outlet, causing the liquid outlet to be blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 This is a schematic structural diagram of an embodiment of an anti-clogging filter of the utility model;

[0023] Figure 2 It is a structural schematic diagram of another embodiment of the anti-clogging filter of the utility model;

[0024] Figure 3 This is a structural schematic diagram of another embodiment of the anti-clogging filter of the utility model;

[0025] Figure 4 This is a structural schematic diagram of another embodiment of the anti-clogging filter of the utility model;

[0026] Figure 5 It is a cross-sectional view of the anti-clogging filter structure of the utility model.

[0027] Description of Figure Numbers:

[0028] 1-body, 11a-accommodating chamber, 12a-liquid inlet chamber, 13a-liquid outlet chamber, 14a-liquid inlet, 15a-liquid outlet;

[0029] 2-fixed seat, 21-clamping protrusion, 22-limiting part, 221-limiting platform, 23-sealing ring;

[0030] 3-filter assembly, 31-filter tube, 311a-medicine liquid channel, 312a-filter hole, 313-first abutment platform, 314-second abutment platform, 32-filter element, 33-pressing member;

[0031] 4-slag receiving plate, 41a-clamping groove, 42-inclined surface, 43-handle, 44-fixing protrusion.

[0032] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0036] The existing liquid medicine filter includes a body and a fixing seat detachably mounted in the body, the fixing seat is used to install the filter assembly in the body, when the liquid medicine flows into the body from the liquid inlet and flows through the filter element in the filter assembly, the membrane residue and dust and other impurities are blocked by the filter element and fall onto the fixing seat, and the liquid medicine after filtration flows out of the filter from the liquid outlet on the body to complete the filtration. Since the filter assembly of the above-mentioned filter is mounted on the fixing seat, when the fixing seat is removed for cleaning, the membrane residue and dust and other impurities are easy to fall from the edge of the fixing seat into the bottom of the body, and are deposited in the pipeline along the liquid outlet, causing the liquid outlet to be blocked.

[0037] To solve the above problems, please refer to Figure 1 The utility model provides an anti-clogging filter. The anti-clogging filter comprises:

[0038] A main body 1, wherein a receiving cavity 11a is provided in the main body 1;

[0039] The fixing seat 2 is located in the accommodating chamber 11a and divides the accommodating chamber 11a into a liquid inlet chamber 12a and a liquid outlet chamber 13a which are independent of each other. The two ends of the body 1 are respectively provided with a liquid inlet 14a communicating with the liquid inlet chamber 12a and a liquid outlet 15a communicating with the liquid outlet chamber 13a;

[0040] The filter assembly 3 includes a filter tube 31 and a filter element 32. The filter tube 31 is inserted into the fixing seat 2. A liquid medicine passage 311a communicating with the liquid outlet cavity 13a is provided in the filter tube 31. A filter hole 312a is provided on the filter tube 31. The filter hole 312a communicates with the liquid inlet cavity 12a and the liquid medicine passage 311a. The filter element 32 is connected to the filter tube 31 and covers the filter hole 312a.

[0041] The slag receiving plate 4 is detachably connected to one side of the fixing seat 2 close to the liquid inlet cavity 12a, the filter tube 31 passes through the slag receiving plate 4 and is connected to the fixing seat 2, and the slag receiving plate 4 drives the filter tube 31 and the filter element 32 to move in the direction of the slag receiving plate 4 away from the fixing seat 2.

[0042] It should be noted that the flow direction of the liquid medicine is from the liquid inlet 14a to the liquid inlet chamber 12a, from the liquid inlet chamber 12a to the filter element 32 to the filter hole 312a, from the filter hole 312a to the liquid medicine channel 311a, from the liquid medicine channel 311a to the liquid outlet chamber 13a, and finally from the liquid outlet chamber 13a to the liquid outlet 15a to complete the filtration. Impurities such as membrane residues and dust in the liquid medicine are blocked by the filter element 32, attached to the filter element 32, or washed to the residue receiving plate 4 by the liquid medicine flow. Therefore, the size of the residue receiving plate 4 should match the size of the fixed seat 2, and it needs to cover the fixed seat 2 to prevent impurities from falling onto the fixed seat 2. In addition, an end cover is provided on the end of the main body 1 close to the liquid inlet 14a, and the end cover can be detachably installed on the main body 1.

[0043] During cleaning, the utility model only needs to lift the slag receiving plate 4, that is, move it in the direction away from the fixing seat 2, drive the filter element 32 and the filter tube 31 to be lifted together, open the end cover, and bring the slag receiving plate 4 out of the body 1, thereby preventing impurities from falling into the liquid outlet cavity 13a, which may cause the impurities to be washed to the liquid outlet 15a by the liquid during the next filtration of the liquid, and accumulate at the liquid outlet 15a, causing the liquid outlet 15a to be blocked.

[0044] In addition, when maintaining the anti-clogging filter, since there is little or no accumulation of impurities on the fixing seat 2, there is no need to remove the fixing seat 2 for maintenance. Only a simple cleaning of the fixing seat 2 is required, which simplifies the maintenance steps of the filter.

[0045] In one embodiment, a clamping protrusion 21 is provided on one side of the fixing seat 2 close to the slag receiving plate 4, and a clamping groove 41a is provided on one side of the fixing seat 2 close to the slag receiving plate 4, and the clamping protrusion 21 is clamped in the clamping groove 41a.

[0046] In this embodiment, in order to facilitate the removal of the slag receiving pan 4 from the fixed seat 2, a snap-in protrusion 21 is provided on the fixed seat 2, and a snap-in groove 41a is provided on the slag receiving pan 4, and the snap-in protrusion 21 is snap-into the snap-in groove 41a. At the same time, the cooperation between the snap-in protrusion 21 and the snap-in groove 41a plays a positioning role. It is only necessary to snap the snap-in protrusion 21 into the snap-in groove 41a to complete the assembly of the slag receiving pan 4 and the fixed seat 2, simplifying the installation steps. In other embodiments, the connection method between the slag receiving pan 4 and the fixed seat 2 can also be a simple abutment, and it is only necessary to ensure that the slag receiving pan 4 is not affected by the flow of the liquid medicine and does not produce displacement, which is not limited here.

[0047] In one embodiment, the outer edge of the slag receiving pan 4 extends away from the fixing seat 2 to the inner wall of the body 1 to form an inclined surface 42 , and the inclined surface 42 is used to make the liquid medicine on the slag receiving pan 4 flow toward the filter tube 31 .

[0048] In this embodiment, the inclined surface 42 plays the role of drainage, even if the liquid on the slag receiving pan 4 flows to the filter tube 31, it can also prevent the impurities located at the outer edge of the slag receiving pan 4 from falling onto the fixed seat 2 along the gap between the slag receiving pan 4 and the inner wall of the body 1 during the disassembly process of the slag receiving pan 4. Furthermore, the fixed seat 2 can be provided with an inclined surface 42 in the same direction to abut against the inner wall of the body 1, so as to prevent some too fine impurities from falling onto the fixed seat 2 along the gap between the slag receiving pan 4 and the inner wall of the body 1, and perform secondary interception, thereby effectively preventing the impurities from falling into the liquid outlet cavity 13a.

[0049] In one embodiment, please refer to Figures 1 to 3 A handle 43 is provided on one side of the slag receiving pan 4 away from the fixing seat 2 . The handle 43 is located in the liquid inlet cavity 12 a . The handle 43 is extended in the direction in which the slag receiving pan 4 is away from the fixing seat 2 .

[0050] In this embodiment, the handle 43 is provided to facilitate the removal of the slag receiving pan 4. Furthermore, the length of the handle 43 is greater than the length of the filter tube 31, which further facilitates the user to remove the slag receiving pan 4 from the fixing seat 2. Optionally, a handle 43 cover is provided at one end of the handle 43 away from the fixing seat 2, and the outer diameter of the handle 43 cover is greater than the outer diameter of the handle 43, which further facilitates contact with the handle 43 during use, thereby facilitating the user to remove the slag receiving pan 4 from the fixing seat 2.

[0051] In one embodiment, please refer to Figure 5 The filter assembly 3 further includes a pressing member 33, which is located at one end of the filter tube 31 close to the liquid inlet 14a;

[0052] A fixing protrusion 44 is provided on one side of the slag receiving plate 4 close to the filter element 32 . The fixing protrusion 44 and the pressing member 33 abut against two ends of the filter element 32 respectively, so that the filter element 32 is fixed on the filter tube 31 .

[0053] In this embodiment, the filter element 32 is a cotton core, so the cotton core is fixed to the filter tube 31 by the clamping member 33 and the fixing protrusion 44 provided on the slag receiving plate 4, and the two cooperate with each other to prevent the cotton core from being washed away from the filter tube 31 by the liquid medicine. At the same time, when the slag receiving plate 4 is disassembled, the filter element 32 is prevented from falling off the filter tube 31, causing the impurities on the filter element 32 to pollute the environment outside the body 1. In this embodiment, the fixing protrusion 44 includes two sections of inclined surfaces inclined toward each other, and the two sections of inclined surfaces form a fixing protrusion 44 at a certain angle toward the direction of the filter element, and the fixing protrusion 44 is inserted into the cotton core along the protrusion direction to fix the cotton core. In other embodiments, the shape of the fixing protrusion 44 is not limited, and it only needs to be a shape that can fix the cotton core.

[0054] In one embodiment, please refer to Figure 3 The pressing member 33 is a pressing nut. An end of the filter tube 31 close to the liquid inlet 14 a is provided with an external thread. The pressing nut is sleeved on the outside of the filter tube 31 and is threadedly connected to the filter tube 31 .

[0055] In this embodiment, in order to adapt and fix filter elements 32 of various lengths, the filter tube 31 is threadedly connected to the clamping nut near the liquid inlet 14a, and the fixing function of filter elements 32 of different lengths is achieved by adjusting the distance of the clamping nut on the filter tube 31.

[0056] In one embodiment, please refer to Figure 4 The fixed seat 2 includes a limiting portion 22, which extends in a direction away from the liquid inlet cavity 12a. The limiting portion 22 includes a limiting platform 221 protruding toward the filter tube 31. The filter tube 31 includes an abutting portion, which is located at one end of the filter tube 31 close to the liquid outlet 15a, and the abutting portion abuts against the limiting platform 221.

[0057] In the present embodiment, in order to facilitate fixing the filter tube 31 on the fixing seat 2 and facilitate the slag receiving plate 4 to drive the filter tube 31 away from the fixing seat 2, the filter tube 31 is abutted against the limiting portion 22 on the fixing seat 2. When installing the filter tube 31, it is only necessary to align the filter tube 31 with the limiting portion 22 and insert it in the vertical direction. The interference fit between the slag receiving plate 4 and the filter tube 31 can prevent the drug solution from flowing onto the fixing seat 2.

[0058] In one embodiment, please refer to Figure 5 The abutting portion includes a first abutting platform 313 and a second abutting platform 314 which are connected to each other. The inner diameter of the second abutting platform 314 is larger than the inner diameter of the first abutting platform 313. The side of the first abutting platform 313 away from the second abutting platform 314 abuts against the slag receiving plate 4, and the side of the second abutting platform 314 away from the first abutting platform 313 abuts against the limiting platform 221.

[0059] In this embodiment, please refer to Figure 5In order to allow the filtered medicinal liquid in the filter tube 31 to quickly flow into the liquid outlet cavity 13a, the inner diameter of the second abutment 314 is larger than the inner diameter of the first abutment 313, that is, the shape of the medicinal liquid channel 311a at one end close to the liquid outlet cavity 13a is roughly trumpet-shaped along the liquid outlet direction, so the speed of the medicinal liquid flowing into the liquid outlet cavity 13a is increased, thereby improving the filtration efficiency.

[0060] In one embodiment, a sealing ring 23 is disposed on the fixing base 2 , and the sealing ring 23 is located between the fixing base 2 and the inner wall of the body 1 .

[0061] In this embodiment, in order to improve the sealing performance of the fixing seat 2 and prevent the liquid medicine or impurities from passing through the inner wall between the fixing seat 2 and the main body 1, a sealing ring 23 is provided between the fixing seat 2 and the inner wall of the main body 1. In addition, the provision of the sealing ring 23 can also prevent the filtered liquid in the liquid outlet cavity 13a from accumulating in the liquid outlet cavity 13a due to untimely discharge, and thus flowing into the liquid inlet cavity 12a from the liquid outlet cavity 13a along the inner wall between the fixing seat 2 and the main body 1.

[0062] In one embodiment, the fixing seat 2 is provided with an annular groove along the circumferential direction, and a portion of the sealing ring 23 is located in the annular groove and abuts against the inner wall of the body 1 .

[0063] In this embodiment, in order to fix the sealing ring 23, an annular groove is provided on the fixing seat 2 to fix the sealing ring 23, and the sealing ring 23 is located in the annular groove, which limits the axial displacement of the sealing ring 23 along the fixing seat 2. Preferably, the sealing ring 23 is made of a silicone material with a large friction force, thereby preventing the fixing seat 2 from being displaced axially along the main body 1 relative to the main body 1.

[0064] The utility model provides a detachable slag receiving pan 4. After the liquid medicine is filtered, the slag receiving pan 4 is removed from the main body 1, and the filter element 32 and the filter tube 31 are removed from the main body 1 at the same time, and the impurities on the filter element 32 are taken out together, thereby preventing the impurities from falling on the fixing seat 2 and becoming difficult to clean.

[0065] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. An anti-clogging filter for filtering impurities in a liquid medicine, characterized in that: include: A main body, wherein a receiving cavity is provided in the main body; A fixing seat, the fixing seat is located in the accommodating cavity and divides the accommodating cavity into a liquid inlet cavity and a liquid outlet cavity which are independent of each other, and a liquid inlet communicating with the liquid inlet cavity and a liquid outlet communicating with the liquid outlet cavity are respectively provided at two ends of the body; A filter assembly, comprising a filter tube and a filter element, wherein the filter tube is inserted through the fixing seat, a liquid medicine channel connected to the liquid outlet cavity is provided in the filter tube, a filter hole is provided on the filter tube, the filter hole is connected to the liquid inlet cavity and the liquid medicine channel, and the filter element is connected to the filter tube and covers the filter hole; The slag receiving plate is detachably connected to a side of the fixing seat close to the liquid inlet cavity, the filter tube passes through the slag receiving plate and is connected to the fixing seat, and the slag receiving plate drives the filter tube and the filter element to move in a direction where the slag receiving plate is away from the fixing seat.

2. The anti-clogging filter according to claim 1, characterized in that A clamping protrusion is provided on one side of the fixing seat close to the slag receiving plate, and a clamping groove is provided on one side of the slag receiving plate close to the fixing seat, and the clamping protrusion is clamped in the clamping groove.

3. The anti-clogging filter according to claim 1, characterized in that The outer edge of the slag receiving pan extends in a direction away from the fixing seat to the inner wall of the main body to form an inclined surface, and the inclined surface is used to make the liquid medicine on the slag receiving pan flow toward the filter tube.

4. The anti-clogging filter according to claim 1, characterized in that A handle is provided on a side of the slag receiving pan away from the fixing seat. The handle is located in the liquid inlet cavity and extends in a direction in which the slag receiving pan is away from the fixing seat.

5. The anti-clogging filter according to claim 1, characterized in that The filter assembly further comprises a pressing member, and the pressing member is located at one end of the filter tube close to the liquid inlet; A fixing protrusion is provided on one side of the slag receiving plate close to the filter element, and the fixing protrusion and the pressing member are respectively in contact with two ends of the filter element, so that the filter element is fixed on the filter tube.

6. The anti-clogging filter according to claim 5, characterized in that The clamping member is a clamping nut, an end of the filter tube close to the liquid inlet is provided with an external thread, and the clamping nut is sleeved on the outside of the filter tube and is threadedly connected to the filter tube.

7. The anti-clogging filter according to claim 1, characterized in that The fixing seat includes a limiting portion, which extends in a direction away from the liquid inlet cavity, and includes a limiting platform protruding toward the filter tube. The filter tube includes an abutting portion, which is located at one end of the filter tube close to the liquid outlet, and the abutting portion abuts against the limiting platform.

8. The anti-clogging filter according to claim 7, characterized in that The abutment portion includes a first abutment platform and a second abutment platform connected to each other, the inner diameter of the second abutment platform is larger than the inner diameter of the first abutment platform, the side of the first abutment platform away from the second abutment platform abuts against the slag receiving plate, and the side of the second abutment platform away from the first abutment platform abuts against the limiting platform.

9. The anti-clogging filter according to claim 1, characterized in that The fixing seat is provided with a sealing ring, and the sealing ring is located between the fixing seat and the inner wall of the body.

10. The anti-clogging filter according to claim 9, characterized in that The fixing seat is provided with an annular groove along the circumferential direction, and the sealing ring portion is located in the annular groove and abuts against the inner wall of the body.

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