CN210290750U - Lip-shaped sealing ring for end face of filter plate washing hole - Google Patents
Lip-shaped sealing ring for end face of filter plate washing hole Download PDFInfo
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- CN210290750U CN210290750U CN201920821890.0U CN201920821890U CN210290750U CN 210290750 U CN210290750 U CN 210290750U CN 201920821890 U CN201920821890 U CN 201920821890U CN 210290750 U CN210290750 U CN 210290750U
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Abstract
The utility model discloses a filter plate washing hole terminal surface lip seal belongs to pressure filter plate plane sealing technical field. The utility model provides a filter plate washing hole terminal surface lip seal, major structure includes lip seal face, extrusion dashpot, three-dimensional enhancement steadiness setting, two kinds of deformation settings and the design of preventing expanding of preapring for an unfavorable turn of events. The lip-shaped sealing surface is characterized in that the lip-shaped sealing surface (comprising a lip opening and a lip edge) deforms under the action of high-pressure fluid, so that the lip edge is tightly attached to the sealing surface to realize sealing, and the lip-shaped sealing surface has the functions of automatic sealing and automatic compensation; the three-way stability arrangement (comprising a sealing fixed ring, a sealing ring fixed step and two sealing convex rings) ensures that the adhesiveness of the sealing ring is stable; the two deformation-preventing arrangements (including an embedded groove and a sealing ring contact bottom surface) enable the sealing ring to be pressure-resistant, durable and non-deformable; the anti-expansion design effectively avoids the sealing ring from expanding to damage the filter plate. The utility model discloses, both improved filter plate washing hole end face leakproofness, reduced the cost that vulnerable part frequently changed again, filled china's filter plate plane self-sealing's blank.
Description
Technical Field
The utility model belongs to the technical field of pressure filter plate plane seal, a filter plate washing hole terminal surface lip sealing circle is related to.
Background
The filter press is a universal solid-liquid separation device, the filter plates are core elements of the filter press, the filter plates are arranged on a cross beam of the filter press, concave parts of adjacent filter plates form a filter chamber, and the end faces of washing holes and blind flow holes of the compressed adjacent plastic filter plates are sealed by O-shaped rubber seal rings. The filtering process of the filter press comprises the following steps: conveying the solid-liquid mixed material from the feed hole to each filter chamber for low-pressure filtration; the filter cloth intercepts particles in the materials to form a filter cake in the filter chamber; the washing liquid is injected into the filter cake from the washing holes at two corners for washing; the filtrate flows out through the liquid outlet holes (blind flow holes), the filter plate is pulled open to realize gravity slag discharge, the sealing ring is sealed along with the compression of the filter plate and loosened along with the pulling open of the filter plate, and the repeated intermittent cycle work is realized.
The existing O-shaped rubber sealing rings on the end surfaces of the washing hole and the blind flow hole of the plastic filter plate have the following defects: when the filter pressing is carried out by high-pressure washing, the O-shaped sealing ring is easy to deform, is easy to be squeezed to break or squeeze out of the sealing groove, and has poor sealing effect and short service life.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defect of current filter plate washing hole and dark discharge opening terminal surface O type sealing washer, solving corresponding technical problem, raising light lip seal for the staff and reciprocating the movive seal principle, providing a filter plate washing hole terminal surface lip seal.
The utility model provides a technical scheme that prior art problem adopted is: a lip-shaped sealing ring for the end surface of a washing hole of a filter plate comprises a lip-shaped sealing surface, an extrusion buffer groove, a sealing fixed ring, a sealing convex ring, a sealing ring fixed step and a sealing ring contact bottom surface,
the sealing ring is characterized in that the sealing ring is provided with a lip-shaped sealing surface (comprising a lip opening and a lip edge), and the lip edge is tightly attached to the sealing surface through the deformation of the lip opening of the lip-shaped sealing ring under the action of high-pressure fluid. The automatic sealing and automatic compensation device has the functions of automatic sealing and automatic compensation, the lip edge is more tightly attached to the sealing surface (the sealing degree can be automatically improved along with the increase of the pressure) when the hydraulic pressure is higher, and the lip edge has certain automatic compensation capability after being worn. An extrusion buffer groove is arranged to disperse and transmit pressure and protect the lip-shaped sealing surface from excessive deformation; when the pressure filtration is washed under high pressure, the lip-shaped sealing ring has better sealing effect and longer service life.
Further, lip-shaped sealing washer has the three-dimensional stability setting of strengthening: 1. the sealing fixed ring surrounds the middle of the hole wall of the washing hole and radially fixes the sealing ring; 2. the sealing ring fixing step is matched with the inner ring of the groove of the filter plate and axially fixes the sealing ring to prevent the sealing ring from falling off; 3. the two sealing convex rings are tightly matched with the contact wall, so that the expansion space between the sealing ring and the contact wall is enlarged, and the sealing ring is pressed and the volume is enlarged and is more stably attached. Effectively solves the problem that the existing O-shaped sealing ring is easily extruded and taken off by high pressure.
Further, the lip-shaped sealing ring has two deformation-preventing arrangements: 1. the embedding groove prevents the sealing ring from deforming under larger pressure; 2. the sealing ring contacts the bottom surface and contacts with the groove plane of the filter plate, so that the contact area is large, the pressure resistance is high, the sealing ring is not easy to deform, and the problem that the existing O-shaped sealing ring is easily broken by high pressure extrusion is effectively solved.
Furthermore, lip-shaped sealing washer has prevention inflation design, and the sealing washer sectional area is 10% to 30% less than filter plate sealing washer mounting groove sectional area, and the sealing washer compression deformation occasionally expands the space, avoids the sealing washer inflation to damage the filter plate.
The utility model provides a filter plate washing hole terminal surface lip seal circle has that the adhesion is firm, automatic seal is effectual, wear-resisting withstand voltage, advantage that the price/performance ratio is high, has both improved filter plate washing hole terminal surface leakproofness, has reduced the cost that vulnerable part frequently changed again, has filled china's filter plate plane automatic seal's blank.
Drawings
Fig. 1 is a schematic view of the cross-sectional structure of the lip-shaped sealing ring of the end face of the filter plate washing hole of the present invention.
Fig. 2 is an enlarged schematic view of the partial section structure of the lip-shaped sealing ring at the end face of the filter plate washing hole of the present invention.
Fig. 3 is a schematic side view of the lip-shaped seal ring of the end face of the filter plate washing hole of the present invention.
Fig. 4 is a schematic view of the lip-shaped seal ring on the end face of the washing hole of the filter plate of the present invention partially assembled with the filter plate.
Reference numerals: 1-lip-shaped sealing surface, 2-extrusion buffer groove, 3-sealing fixed ring, 4-sealing convex ring, 5-sealing ring fixed step, 6-sealing ring contact bottom surface, 7-embedding groove, 11-lip-shaped sealing ring, 12-main filtering plate with sealing groove, 13-auxiliary filtering plate without sealing groove, 14-washing hole.
Detailed Description
The technical solution in the embodiment of the present invention is described with reference to the attached drawings in the embodiment of the lip-shaped sealing ring for the end face of the washing hole of the filter plate, and the described embodiment is only a part of the preferred embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments without inventive idea made by those skilled in the art, such as other lip-shaped sealing rings with the same plane sealing principle and similar structure, all belong to the protection scope of the present invention.
Example 1
The utility model provides a filter plate washing hole terminal surface lip seal circle, major structure includes lip seal face 1, extrusion dashpot 2, sealed retainer plate 3, sealed bulge loop 4, sealing washer fixed step 5, sealing washer contact bottom surface 6, inlays groove 7. The lip-shaped sealing surface 1 (comprising a lip mouth and a lip edge) is characterized in that the lip mouth of the lip-shaped sealing ring 11 deforms under the action of high-pressure fluid, so that the lip edge is automatically attached to the sealing surface; the buffer groove 2 is extruded to disperse and transmit pressure and protect the lip-shaped sealing surface from excessive deformation; the sealing fixed ring 3 surrounds the middle of the wall of the washing hole 14 and radially fixes the sealing ring; the two sealing convex rings 4 are tightly matched with the contact wall of the main filter plate 12 with the sealing groove, so that the expansion space between the sealing ring and the contact wall is enlarged, and the sealing ring is pressed to increase the volume and is more stably attached; the sealing ring fixing step 5 is matched with the inner ring of the groove of the filter plate and axially fixes the sealing ring to prevent the sealing ring from falling off; the sealing ring is contacted with the bottom surface 6 and is contacted with the groove plane of the filter plate 12, the contact area is large, the pressure resistance is strong, and the sealing ring is not easy to deform; the embedding groove 7 prevents the sealing ring from deforming under larger pressure. The filter plate overcomes various defects of the O-shaped sealing rings on the end surfaces of the washing hole and the blind flow hole of the existing filter plate, and has the functions of automatic sealing and automatic compensation of the plane lip shape of the filter plate.
Example 2
A material and prevention expansion design of a lip-shaped sealing ring of an end face of a filter plate washing hole: the main filter plate 12 with the sealing groove and the auxiliary filter plate 13 without the sealing groove are made of polypropylene; the lip-shaped sealing ring 11 is made of rubber, is compression-molded, is wear-resistant and pressure-resistant, and has an automatic elastic compensation function after a sealing surface is worn; lip seal 11 has prevention inflation design, and the main filter plate 12 sealing washer mounting groove sectional area is bigger than lip seal 11 sectional area by 10% to 30%, and the expansion space when sealing washer 11 compression deformation avoids sealing washer 11 inflation to damage filter plate 12, and dismouting convenient to use. The lip-shaped sealing ring 11 not only improves the end surface sealing performance of the filter plate washing hole 14, but also reduces the cost of frequently replacing wearing parts.
Claims (4)
1. A lip-shaped sealing ring of the end surface of a washing hole of a filter plate mainly structurally comprises a lip-shaped sealing surface, an extrusion buffer groove, a sealing fixed ring, a sealing convex ring, a sealing ring fixed boss and a sealing ring contact bottom surface; the sealing ring is characterized in that the sealing ring is provided with a lip-shaped sealing surface, the lip-shaped sealing surface comprises a lip mouth and a lip edge, the lip mouth deforms under the action of high-pressure fluid, the lip edge is enabled to be tightly attached to the sealing surface to realize sealing, and an extrusion buffer groove is arranged to enable pressure to be dispersed and transmitted and protect the lip-shaped sealing surface from excessive deformation.
2. The filter plate wash port facing lip seal of claim 1, having a three-way reinforcement stability arrangement: (1) the sealing fixed ring surrounds the middle of the hole wall of the washing hole and radially fixes the sealing ring; (2) the sealing ring fixing boss is matched with the inner ring of the groove of the filter plate and axially fixes the sealing ring to prevent the sealing ring from falling off; (3) the two sealing convex rings are in interference fit with the contact wall, so that the friction force between the sealing ring and the contact wall is increased, and the sealing ring is more stably attached.
3. The lip-seal for the end face of a filter plate washing hole according to claim 1, characterized in that there are two deformation prevention arrangements: the embedded groove prevents the sealing ring from deforming under larger pressure, the sealing ring is in contact with the bottom surface and is in contact with the plane of the groove of the filter plate, the contact area is large, the pressure resistance is strong, and the sealing ring is not easy to deform.
4. The lip-shaped seal ring for the end face of the washing hole of the filter plate as claimed in claim 1, wherein the sectional area of the seal ring is 10% to 30% smaller than that of the installation groove of the seal ring of the filter plate, and the seal ring has an expansion space when being compressed and deformed, thereby preventing the seal ring from expanding and damaging the filter plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920821890.0U CN210290750U (en) | 2019-06-03 | 2019-06-03 | Lip-shaped sealing ring for end face of filter plate washing hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920821890.0U CN210290750U (en) | 2019-06-03 | 2019-06-03 | Lip-shaped sealing ring for end face of filter plate washing hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210290750U true CN210290750U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920821890.0U Active CN210290750U (en) | 2019-06-03 | 2019-06-03 | Lip-shaped sealing ring for end face of filter plate washing hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210290750U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242749A (en) * | 2019-06-03 | 2019-09-17 | 景津环保股份有限公司 | Filter plate washs hole end surface lip-type packing |
| WO2022151023A1 (en) * | 2021-01-13 | 2022-07-21 | 姜桂廷 | Dual-opening parallel-feed box-type filter chamber with combined primary and secondary plates, and dual-feed box-type filter press |
-
2019
- 2019-06-03 CN CN201920821890.0U patent/CN210290750U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242749A (en) * | 2019-06-03 | 2019-09-17 | 景津环保股份有限公司 | Filter plate washs hole end surface lip-type packing |
| WO2022151023A1 (en) * | 2021-01-13 | 2022-07-21 | 姜桂廷 | Dual-opening parallel-feed box-type filter chamber with combined primary and secondary plates, and dual-feed box-type filter press |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 253000 shoujingjin group, Jinghua Road North, Dezhou Economic Development Zone, Shandong Province Patentee after: Jingjin Equipment Co.,Ltd. Address before: 253000 shoujingjin group, Jinghua Road North, Dezhou Economic Development Zone, Shandong Province Patentee before: Jing Jin Environmental Protection Inc. |