CN220159357U - Mistake proofing structure of suction filter - Google Patents
Mistake proofing structure of suction filter Download PDFInfo
- Publication number
- CN220159357U CN220159357U CN202322792658.8U CN202322792658U CN220159357U CN 220159357 U CN220159357 U CN 220159357U CN 202322792658 U CN202322792658 U CN 202322792658U CN 220159357 U CN220159357 U CN 220159357U
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- upper shell
- error
- lower shell
- shell
- proofing
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- 239000007788 liquid Substances 0.000 claims abstract description 22
- 210000001503 joint Anatomy 0.000 claims abstract description 10
- 230000010354 integration Effects 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Abstract
The utility model provides an error-proofing structure of a suction filter, which comprises an upper shell and a lower shell which are mutually butted, wherein a filter cavity is formed between the upper shell and the lower shell, filter paper and a net rack for supporting the filter paper are arranged in the filter cavity, a butt joint seam of the upper shell and the lower shell is of a rectangular structure, a liquid outlet arranged on the top surface of the upper shell is positioned at the left side of the upper shell, and a liquid inlet arranged on the bottom surface of the lower shell is positioned at the right side of the lower shell; the left side integration at the rack is provided with first mistake proofing piece, and the left end of first mistake proofing piece is close to the left side lateral wall of crossing the liquid chamber, and the integration is provided with the second mistake proofing piece on the right side lateral wall of crossing the liquid chamber, and the left end of second mistake proofing piece is close to the rack, and the right side of upper casing and the right side of lower casing are put into to the second mistake proofing piece hindrance first mistake proofing piece. The first error-proofing block and the second error-proofing block are used for preventing errors in the assembly of the upper shell, the filter layer assembly and the lower shell, so that the assembly error times are reduced, the time cost of the production process is reduced, and the rejection rate is further reduced.
Description
Technical Field
The utility model relates to a suction filter, in particular to an error-proofing structure of the suction filter.
Background
Suction filters refer to devices that utilize a vacuum to force a liquid in a fluid through a filter paper to separate solid particles in the fluid. A filter cavity is formed in the suction filter, and filter paper is arranged in the filter cavity. When the filter is used, the vacuum pump is arranged at the outlet of the suction filter, fluid can be pumped into the filtering cavity from the inlet of the suction filter through the vacuum pump, filtered by the filter paper and flows out from the outlet of the filter, and solid particles in the fluid are trapped by the filter paper, so that the fluid is filtered.
CN218740702U discloses a suction filter structure with symmetrical upper and lower shells, between which a filter paper and a net frame for supporting the filter paper are arranged, and the periphery of the net frame is fixedly connected with a mounting ring, and the mounting ring is fixedly connected in a butt joint between the upper and lower shells. At present, the suction filter needs to be arranged in a long strip shape, the liquid inlet needs to be arranged at the right side of the center of the bottom surface of the lower shell, and the liquid outlet needs to be arranged at the left side of the center of the top surface of the upper shell, so that the full utilization of the paper is easily met. Because the upper shell and the lower shell are rectangular, the lower shell can be butted with the upper shell after being reversed left and right, and workers can easily reverse the lower shell left and right during assembly, so that defective products are produced.
Disclosure of Invention
The utility model provides an error-proofing structure of a suction filter, aiming at solving the problems in the prior art, and aiming at preventing a lower shell from being arranged on an upper shell after being reversed left and right.
An error-proofing structure of a suction filter comprises an upper shell and a lower shell which are butted with each other, wherein a filter cavity is formed between the upper shell and the lower shell, a filter layer assembly for separating the filter cavity from each other up and down is arranged in the filter cavity, the filter layer assembly comprises filter paper and a net rack for supporting the filter paper, the periphery of the net rack is integrally arranged with an inner ring of a mounting ring, and the mounting ring is clamped between butt joints of the upper shell and the lower shell and is arranged in a sealing way with the upper shell or the lower shell; the butt joint of the upper shell and the lower shell is of a rectangular structure, a liquid outlet arranged on the top surface of the upper shell is positioned on the left side of the upper shell, and a liquid inlet arranged on the bottom surface of the lower shell is positioned on the right side of the lower shell; the left side integration at the rack is provided with first mistake proofing piece, and the left end of first mistake proofing piece is close to the left side lateral wall of crossing the liquid chamber, and the integration is provided with the second mistake proofing piece on the right side lateral wall of crossing the liquid chamber, and the left end of second mistake proofing piece is close to the rack, and the right side of upper casing and the right side of lower casing are put into to the second mistake proofing piece hindrance first mistake proofing piece.
The method further comprises the following steps: the net rack comprises a plurality of ribs which are arranged on the filter paper in parallel, and the left end parts of the ribs extend to the mounting ring and form the first error-proofing block; the ribs connected with the second error-proofing block and the first error-proofing block correspond to each other.
The method further comprises the following steps: the net rack is made of plastic or rubber.
The method further comprises the following steps: the distance between the top surface in the upper shell and the top surface of the filter paper is gradually reduced from left to right, and the bottom surface in the lower shell is parallel to the bottom surface of the filter paper.
The method further comprises the following steps: the welding ring is integrally arranged between the butt joint seam of the upper shell and the lower shell on the upper shell, the lower side of the welding ring is welded with the lower shell, the pressing ring is integrally arranged at the position, corresponding to the mounting ring, on the upper shell, and the lower side of the pressing ring is abutted to the mounting ring.
The method further comprises the following steps: a gap is reserved between the compression ring and the welding ring, the part, located in the gap, of the mounting ring is bent downwards to form an arc-shaped structure, the outer side edge of the arc-shaped structure is abutted to the welding joint between the welding ring and the lower shell, and the welding ring stops the trend that the arc-shaped structure extends outwards.
The utility model has the beneficial effects that: the first error-proofing block and the second error-proofing block are used for preventing errors in the assembly of the upper shell, the filter layer assembly and the lower shell, so that the assembly error times are reduced, the time cost of the production process is reduced, and the rejection rate is further reduced.
Drawings
FIG. 1 is a cross-sectional view of the present utility model;
FIG. 2 is an enlarged view of the structure of area A in FIG. 1;
FIG. 3 is a schematic view of a filter assembly according to the present utility model;
FIG. 4 is a schematic view of the structure of the upper housing of the present utility model;
fig. 5 is a schematic structural view of the lower housing in the present utility model.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings. Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model. The terms left, middle, right, upper, lower, etc. in the embodiments of the present utility model are merely relative concepts or references to the normal use state of the product, and should not be construed as limiting.
An error-proofing structure of a suction filter, as shown in fig. 1, comprises an upper shell 1 and a lower shell 2 which are butted with each other and form a filter cavity between the two, wherein a filter layer assembly 3 for separating the filter cavity up and down is arranged in the filter cavity, and as shown in fig. 2 and 3, the filter layer assembly 3 comprises filter paper 31 and a net rack 32 for supporting the filter paper 31, the periphery of the net rack 32 is integrally arranged with the inner ring of a mounting ring 33, and the mounting ring 33 is clamped between the butt joint of the upper shell 1 and the lower shell 2 and is sealed with the upper shell 1 or the lower shell 2; the butt joint of the upper shell 1 and the lower shell 2 is of a rectangular structure, a liquid outlet 11 arranged on the top surface of the upper shell 1 is positioned on the left side of the upper shell 1, and a liquid inlet 21 arranged on the bottom surface of the lower shell 2 is positioned on the right side of the lower shell 2; the left side integration at rack 32 is provided with first mistake proofing piece 322, and the left end of first mistake proofing piece 322 is close to the left side lateral wall of crossing the liquid chamber, and the integration is provided with second mistake proofing piece 4 on the right side lateral wall of crossing the liquid chamber, and the left end of second mistake proofing piece 4 is close to rack 32, and second mistake proofing piece 4 hinders the right side that first mistake proofing piece 322 put into in the upper casing 1 and the right side in lower casing 2, combines the fig. 4 and 5 to show, and the middle part of upper casing 1 and lower casing 2 right side lateral wall all is provided with in the integration the second mistake proofing piece 4. The distance between the top surface in the upper shell 1 and the top surface of the filter paper 31 is gradually reduced from left to right, and the bottom surface in the lower shell 2 is parallel to the bottom surface of the filter paper 31, so that the liquid on the right side of the top surface of the filter paper 31 can conveniently move to the liquid outlet 11.
As shown in fig. 3, the net rack 32 is made of plastic or rubber, the net rack 32 includes a plurality of ribs 321 arranged on the filter paper 31 in parallel, and the left end of the ribs 321 extends to the mounting ring 33 to form the first error-proofing block 322; the ribs 321 connected with the second error-proofing block 4 and the first error-proofing block 322 correspond to each other; when the filter layer assembly 3 is reversely assembled, the second error-proofing block 4 and the first error-proofing block 322 interfere, so that the filter layer assembly 3 cannot be placed in the upper and lower shells. As shown in fig. 2, a welding ring 12 is integrally disposed on the upper housing 1 between the butt seam of the upper housing 1 and the lower housing 2, the lower side of the welding ring 12 is welded with the lower housing 2, a pressing ring 13 is integrally disposed on the upper housing 1 at a position corresponding to the mounting ring 33, and the lower side of the pressing ring 13 abuts against the mounting ring 33, so as to realize sealing between the mounting ring 33 and the upper housing 1 and fixed connection of the upper housing and the lower housing. A gap is reserved between the compression ring 13 and the welding ring 12, the part, located in the gap, of the mounting ring 33 is bent downwards to form an arc-shaped structure 331, the outer side edge of the arc-shaped structure 331 is abutted to a welding joint between the welding ring 12 and the lower shell 2, and the welding ring 12 stops the trend of the arc-shaped structure 331 extending outwards. Under the combined action of the welding ring 12 and the arc-shaped structure 331, the filter paper 31 is prevented from being upside down, that is, when the mounting ring 33 is reversely mounted, the arc-shaped structure 331 is pressed between the welding ring 12 and the lower housing 2, and the assembly cannot be realized.
When in assembly, as shown in fig. 1, the lower shell 2 is placed on a workbench, the liquid inlet 21 is positioned on the right side of the lower shell 2, the filter layer assembly 3 is placed in the lower shell 2, the first error-proofing block 322 is positioned on the left side of the filter layer assembly 3, and the arc-shaped structure 331 is positioned downwards; the upper shell 1 is buckled on the lower shell 2, the upper shell and the lower shell are butted together, the welding ring 12 extrudes the arc-shaped structure 331, the arc-shaped structure 331 slightly bulges after shrinking, and the lower end face of the welding ring 12 is welded after being attached to the lower shell 2.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. An error-proofing structure of a suction filter comprises an upper shell and a lower shell which are butted with each other, wherein a filter cavity is formed between the upper shell and the lower shell, a filter layer assembly for separating the filter cavity from each other up and down is arranged in the filter cavity, the filter layer assembly comprises filter paper and a net rack for supporting the filter paper, the periphery of the net rack is integrally arranged with an inner ring of a mounting ring, and the mounting ring is clamped between butt joints of the upper shell and the lower shell and is arranged in a sealing way with the upper shell or the lower shell; the method is characterized in that: the butt joint of the upper shell and the lower shell is of a rectangular structure, a liquid outlet arranged on the top surface of the upper shell is positioned on the left side of the upper shell, and a liquid inlet arranged on the bottom surface of the lower shell is positioned on the right side of the lower shell; the left side integration at the rack is provided with first mistake proofing piece, and the left end of first mistake proofing piece is close to the left side lateral wall of crossing the liquid chamber, and the integration is provided with the second mistake proofing piece on the right side lateral wall of crossing the liquid chamber, and the left end of second mistake proofing piece is close to the rack, and the right side of upper casing and the right side of lower casing are put into to the second mistake proofing piece hindrance first mistake proofing piece.
2. The error-proofing structure of the suction filter according to claim 1, wherein: the net rack comprises a plurality of ribs which are arranged on the filter paper in parallel, and the left end parts of the ribs extend to the mounting ring and form the first error-proofing block; the ribs connected with the second error-proofing block and the first error-proofing block correspond to each other.
3. The error-proofing structure of the suction filter according to claim 2, wherein: the net rack is made of plastic or rubber.
4. The error-proofing structure of the suction filter according to claim 1, wherein: the distance between the top surface in the upper shell and the top surface of the filter paper is gradually reduced from left to right, and the bottom surface in the lower shell is parallel to the bottom surface of the filter paper.
5. The error-proofing structure of the suction filter according to claim 1, wherein: the welding ring is integrally arranged between the butt joint seam of the upper shell and the lower shell on the upper shell, the lower side of the welding ring is welded with the lower shell, the pressing ring is integrally arranged at the position, corresponding to the mounting ring, on the upper shell, and the lower side of the pressing ring is abutted to the mounting ring.
6. The error-proofing structure of suction filter according to claim 5, wherein: a gap is reserved between the compression ring and the welding ring, the part, located in the gap, of the mounting ring is bent downwards to form an arc-shaped structure, the outer side edge of the arc-shaped structure is abutted to the welding joint between the welding ring and the lower shell, and the welding ring stops the trend that the arc-shaped structure extends outwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322792658.8U CN220159357U (en) | 2023-10-18 | 2023-10-18 | Mistake proofing structure of suction filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322792658.8U CN220159357U (en) | 2023-10-18 | 2023-10-18 | Mistake proofing structure of suction filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220159357U true CN220159357U (en) | 2023-12-12 |
Family
ID=89067537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322792658.8U Active CN220159357U (en) | 2023-10-18 | 2023-10-18 | Mistake proofing structure of suction filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220159357U (en) |
-
2023
- 2023-10-18 CN CN202322792658.8U patent/CN220159357U/en active Active
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