Liquid filtering device

Abstract

The utility model relates to a liquid filtering device which comprises a shell, a filter element, a filter element and a filter element, wherein a cover plate is arranged at one end of the shell; the filtering piece is located in the shell, and a groove is formed in one end of the filtering piece; the sealing piece abuts against the end of the groove, the sealing piece comprises a protrusion, the protrusion is connected with the groove in a clamped mode, and the diameter of the end, away from the groove, of the sealing piece is gradually decreased in the direction away from the groove. The liquid filtering device disclosed by the utility model can avoid copper deposition at the end part of the filter element.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter device technical field especially relates to a liquid filter device. BACKGROUND

[0002] In the process of electroless copper plating, the liquid in the electroless copper plating tank needs to be filtered, and currently the liquid is introduced into a containing cavity with a filter element to filter the liquid through the filter element. The end of the filter element is usually processed by injection molding process, resulting in a groove at the end of the filter element. During the filtering process, the liquid in the electroless copper plating tank will enter the groove, causing copper to accumulate in the groove over time, thereby affecting the flow of the liquid and reducing the efficiency of the liquid filtration. SUMMARY

[0003] Therefore, the utility model wants to solve the technical problem of providing a liquid filter device that can prevent copper from accumulating at the end of the filter element.

[0004] To solve the above technical problems, the utility model provides a liquid filter device, comprising: a housing, one end of the housing is provided with a cover plate; a filter element located in the housing, one end of the filter element is provided with a groove; a sealing element abutting against the end of the groove, the sealing element comprises a protrusion, the protrusion is connected with the groove, and the diameter of the end of the sealing element away from the groove gradually decreases away from the groove.

[0005] In one embodiment of the utility model, a top rod is provided between the cover plate and the filter element, one end of the top rod close to the filter element is connected with a pressing plate, and the pressing plate abuts against the sealing element.

[0006] In one embodiment of the utility model, one end of the top rod abuts against the cover plate, and the diameter of the end of the top rod abutting against the cover plate gradually increases away from the cover plate.

[0007] In one embodiment of the utility model, an elastic element is provided between the pressing plate and the filter element, both ends of the elastic element abut against the pressing plate and the filter element respectively, and the elastic element is sleeved on the sealing element.

[0008] In one embodiment of the utility model, an inlet is provided on the housing, and the inlet is located on the side wall of the housing close to the position of the cover plate.

[0009] In one embodiment of the utility model, an outlet is further provided on the housing, and the outlet is located on the end of the housing away from the cover plate.

[0010] In an embodiment of the utility model, the side wall of the shell is equipped with a groove, the connecting plate is clamped in the groove, and the connecting plate is connected with the cover plate.

[0011] In an embodiment of the utility model, the connecting plate is equipped with a protruding block, the fastener is connected with the protruding block, and the fastener is clamped with the cover plate.

[0012] In an embodiment of the utility model, the fastener comprises a connecting rod and a limiting piece, the cover plate is equipped with a clamping groove, the clamping groove corresponds to the position of the protruding block, the connecting rod is hinged with the protruding block, the connecting rod can penetrate the clamping groove, the limiting piece is threadedly connected with the connecting rod, and the limiting piece can abut against the cover plate.

[0013] In an embodiment of the utility model, the side wall of the shell is equipped with a pressure relief valve, and the pressure relief valve is equipped with a pressure detection piece.

[0014] Compared with the prior art, the above technical scheme of the utility model has the following advantages:

[0015] The liquid filtering device comprises a shell, a cover plate, a filter piece, a sealing piece and a top rod, the shell is provided with a groove, the filter piece is arranged in the groove, the cover plate is arranged on the groove, the sealing piece is arranged on the cover plate, and the top rod is arranged on the cover plate and is in abutment with the cover plate. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to make the content of the utility model more easily understood clearly, the utility model is further explained in detail in the following according to the specific embodiment of the utility model and in conjunction with the drawings.

[0017] Figure 1 It is a structural schematic diagram of the liquid filtering device of the utility model,

[0018] Figure 2 It is Figure 1 the internal structure schematic diagram of,

[0019] Figure 3 It is the assembly structure schematic diagram of the filter piece and the sealing piece.

[0020] The description reference signs are explained: 1, shell; 2, connecting plate; 3, cover plate; 4, pressing plate; 5, filter piece; 11, liquid inlet; 12, liquid outlet; 13, pressure relief valve; 14, pressure detection piece; 21, lug; 22, connecting rod; 23, limiting piece; 41, ejector rod; 51, elastic piece; 52, groove; 53, sealing piece; 54, protrusion. DETAILED DESCRIPTION

[0021] The utility model is further explained below in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0022] Referring to Figures 1 to 3 The utility model discloses a liquid filter device, including: shell 1, one end of the shell 1 is equipped with cover plate 3, filter piece 5 is located in the shell 1, one end of the filter piece 5 is equipped with recess 52, sealing piece 53, the end of the recess 52 of sealing piece 53 is in abutment, and the sealing piece 53 includes protrusion 54, the protrusion 54 is connected with the recess 52, and the diameter of the end of the sealing piece 53 away from the recess 52 gradually reduces away from the recess 52 direction.

[0023] The recess 52 of the filter piece 5 of the liquid filter device of the embodiment is connected with the sealing piece 53, the end of the recess 52 is in abutment with the sealing piece 53, so that the liquid is avoided to remain at the end of the recess 52, the protrusion 54 of the sealing piece 53 is connected with the recess 52, so that the liquid is avoided to enter the recess 52, the diameter of the end of the sealing piece 53 away from the recess 52 gradually reduces away from the recess 52 direction, that is, the end of the sealing piece 53 away from the recess 52 is conical, so that the liquid is avoided to remain on the sealing piece 53, and then the end of the recess 52 of the sealing piece 53 and the filter piece 5 are not all coppered.

[0024] Referring to Figure 1 The shell 1 is in the whole cylinder shape of cylindrical shape, the shell 1 is equipped with the containing cavity in the inside, and the opening end of the shell 1 is equipped with the cover plate 3.

[0025] Referring to Figure 2 And Figure 3As shown, the filter 5 is located in the accommodating cavity of the shell 1, the filter 5 is in a cylindrical shape, the filter 5 is clamped with the bottom of the shell 1, and the filter 5 is provided with a groove 52 at one end close to the cover plate 3. The sealing element 53 abuts the end of the groove 52, the bottom of the sealing element 53 is provided with a protrusion 54, the protrusion 54 is clamped with the groove 52, and the size of the protrusion 54 and the groove 52 is matched, so that the side wall of the protrusion 54 can be fitted with the side wall of the groove 52, avoiding the gap between the protrusion 54 and the groove 52 to cause the liquid to enter the gap. The bottom of the sealing element 53 abuts the end of the groove 52, specifically, the bottom of the sealing element 53 is located at the position around the protrusion 54 and abuts the end of the groove 52, and the sealing element 53 can completely cover and fit the end of the groove 52, thereby avoiding the liquid remaining at the end of the groove 52, and also avoiding the gap between the sealing element 53 and the end of the groove 52 to cause the liquid to enter the gap. The diameter of the end of the sealing element 53 away from the groove 52 gradually decreases away from the groove 52, that is, the end of the sealing element 53 away from the groove 52 is tapered, so that the liquid can flow along the side wall of the sealing element 53, avoiding the liquid remaining at the top end of the sealing element 53. Through the setting of the sealing element 53, the liquid can be prevented from entering the groove 52, the liquid can also be prevented from entering between the sealing element 53 and the end of the groove 52, and the liquid can also be prevented from remaining at the top end of the sealing element 53.

[0026] A top rod 41 is arranged between the cover plate 3 and the filter 5, one end of the top rod 41 is connected with a pressing plate 4, the pressing plate 4 abuts the sealing element 53, and the cover plate 3 abuts the sealing element 53 through the top rod 41 and the pressing plate 4, so that the fixation of the filter 5 in the shell 1 is more stable. Preferably, one end of the top rod 41 abuts the cover plate 3, and the diameter of the end of the top rod 41 abutting the cover plate 3 gradually increases away from the cover plate 3, that is, the end of the top rod 41 abutting the cover plate 3 is tapered, so that the contact area of the top rod 41 and the cover plate 3 is smaller, thereby preventing a large amount of liquid from remaining between the top plate and the cover plate 3, and the tapered end of the top rod 41 enables the liquid to flow along the side wall of the top plate, further preventing a large amount of liquid from remaining between the top plate and the cover plate 3. An elastic element 51 is arranged between the pressing plate 4 and the filter 5, the elastic element 51 can be regarded as a spring, and the two ends of the elastic element 51 respectively abut the pressing plate 4 and the filter 5. The setting of the elastic element 51 can exert pressure on the filter 5, so that the fixation of the filter 5 in the shell 1 is more stable. The elastic element 51 is sleeved on the sealing element 53, so that the fixation of the elastic element 51 between the pressing plate 4 and the filter 5 is more stable, avoiding the inclination and dislocation of the elastic element 51.

[0027] The shell 1 is provided with an inlet 11, which is communicated with the accommodating cavity of the shell 1, and the external liquid to be filtered enters the accommodating cavity of the shell 1 through the inlet 11, so as to be filtered by the filter element 5 in the shell 1. Preferably, the inlet 11 is located on the side wall of the shell 1 close to the cover plate 3, that is, the position of the inlet 11 is located on the side wall of the shell 1 close to the top, so that the liquid can fully contact the filter element 5 after entering the shell 1, and the circulating amount of the liquid in the shell 1 is sufficient, thereby improving the filtering efficiency of the liquid. The shell 1 is also provided with an outlet 12, which is located at one end of the shell 1 away from the cover plate 3, that is, the outlet 12 is located at the bottom of the shell 1. The filtered liquid flows out from the bottom end of the filter element 5, and the outlet 12 is communicated with the bottom end of the filter element 5, so that the filtered liquid can directly flow out from the outlet 12.

[0028] The side wall of the shell 1 is provided with a groove 52 along the circumference of the shell 1, and the groove 52 is arranged along the radial direction of the shell 1. The connecting plate 2 is clamped in the groove 52, and the connecting plate 2 is annular and matched in size with the groove 52. The connecting plate 2 is connected with the cover plate 3, so as to fix the cover plate 3. Specifically, the connecting plate 2 is provided with a protrusion 21 protruding from the groove 52, and the protrusion 21 is connected with a fastener. The side wall of the cover plate 3 is provided with a clamping groove (not shown in the figure), which is positionally corresponding to the protrusion 21 in the vertical direction. The fastener includes a connecting rod 22 and a limiting piece 23. One end of the connecting rod 22 is hinged with the protrusion 21. By rotating the connecting rod 22, the connecting rod 22 can penetrate the clamping groove. The side wall of the connecting rod 22 is provided with a thread. The limiting piece 23 can be regarded as a hand wheel. The limiting piece 23 is threadedly connected with the connecting rod 22. By rotating the limiting piece 23, the limiting piece 23 can abut against the cover plate 3, so as to fix the position of the cover plate 3.

[0029] The side wall of the shell 1 is provided with a pressure relief valve 13, and the pressure relief valve 13 is provided with a pressure detecting piece 14. The pressure detecting piece 14 can be used to monitor the pressure of the shell 1 in real time. When the pressure is too large, the pressure in the shell 1 can be reduced through the pressure relief valve 13.

[0030] In use, the filter element 5 is clamped with the bottom of the shell 1, and then the elastic piece 51 is sleeved on the sealing piece 53. The pressing plate 4 and the top rod 41 are placed on the elastic piece 51. The cover plate 3 is placed at the port position of the shell 1. The connecting rod 22 is rotated to penetrate the clamping groove. The limiting piece 23 is rotated to abut against the cover plate 3. Until the cover plate 3 abuts against the end of the shell 1, the elastic piece 51 is compressed. Finally, the external liquid to be filtered enters the accommodating cavity of the shell 1 through the inlet 11. The liquid to be filtered contacts the filter element 5, so as to realize the filtration of the liquid to be filtered. The filtered liquid flows out through the outlet 12 from the bottom end of the filter element 5.

[0031] The utility model discloses a liquid filter device, through the end of recess 52 abuts with sealing element 53, thereby avoid liquid in the end of recess 52 residual, through the projection 54 of sealing element 53 and recess 52 clamping, thereby avoid liquid into recess 52, through the diameter of sealing element 53 far away from recess 52 one end gradually reduces to the direction far away from recess 52, namely the taper of sealing element 53 far away from recess 52 one end, thereby avoid liquid on sealing element 53 residual, and further make sealing element 53 and the recess 52 end of filter piece 5 all will not be copper. Through the diameter of the end of top rod 41 and cover plate 3 abuts one end taper, thereby make the contact area of top rod 41 and cover plate 3 smaller, and further prevent a large amount of liquid residual between top plate and cover plate 3, and the setting of the end of top rod 41 taper makes liquid can flow along the side wall of top plate, further avoid a large amount of liquid residual between top plate and cover plate 3.

[0032] Obviously, the above-mentioned embodiments are only examples for clearly illustrating, and are not limited to the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A liquid filtration device, characterized by, The utility model relates to a filter device, including: A shell is equipped with a cover plate at one end; A filter is located in the shell, and one end of the filter is provided with a groove; A sealing element abuts against the end of the groove, the sealing element includes a protrusion, the protrusion is clamped with the groove, and the diameter of the sealing element gradually decreases away from the groove direction at the end away from the groove.

2. The liquid filtration device of claim 1, wherein: A top rod is provided between the cover plate and the filter, and the top rod is connected with a pressing plate at one end close to the filter, the pressing plate abuts against the sealing element.

3. The liquid filtration device of claim 2, wherein: One end of the top rod abuts against the cover plate, and the diameter of the top rod gradually increases away from the cover plate direction at the end abutting against the cover plate.

4. The liquid filtration device of claim 2, wherein: An elastic element is provided between the pressing plate and the filter, both ends of the elastic element abut against the pressing plate and the filter respectively, and the elastic element is sleeved on the sealing element.

5. The liquid filtration device of claim 1, wherein: A liquid inlet is provided on the shell, and the liquid inlet is located on the side wall of the shell close to the cover plate.

6. The liquid filtration device of claim 1, wherein: A liquid outlet is also provided on the shell, and the liquid outlet is located at the end of the shell away from the cover plate.

7. The liquid filtration device of claim 1, wherein: A groove is provided on the side wall of the shell, a connecting plate is clamped in the groove, and the connecting plate is connected with the cover plate.

8. The liquid filtration device of claim 7, wherein: A protruding block is provided on the connecting plate, the protruding block is connected with a fastener, and the fastener is clamped with the cover plate.

9. The liquid filtration device of claim 8, wherein: The fastener includes a connecting rod and a limiting element, the cover plate is provided with a clamping groove corresponding to the position of the protruding block, the connecting rod is hinged with the protruding block, the connecting rod can penetrate through the clamping groove, the limiting element is threadedly connected with the connecting rod, and the limiting element can abut against the cover plate.

10. The liquid filtration device of claim 1, wherein: A pressure relief valve is provided on the side wall of the shell, and a pressure detection element is provided on the pressure relief valve.

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