Filter plate sealing assembly for filter press
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANYUAN WEIYE ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-07-07
AI Technical Summary
The sealing rings of the existing filter plate sealing assembly of the filter press are prone to aging and wear, resulting in a decline in sealing performance, and the replacement process is cumbersome and time-consuming.
A filter plate sealing assembly was designed, comprising a plate and frame body, a silicone ring, and a locking mechanism. The elasticity of the silicone ring enables self-sealing, and the locking mechanism allows for quick installation and disassembly.
It extends the service life of the sealing ring, improves the sealing effect, and simplifies the installation and disassembly process of the filter plate.
Smart Images

Figure CN224462319U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of filter press technology, specifically relating to filter plate sealing components for filter presses. Background Technology
[0002] The filter plate sealing assembly used in a filter press is a key component to ensure that the liquid does not bypass or leak during the filtration process. This sealing assembly is usually installed on the edge of the filter plate. When multiple filter plates are combined together to form a filter chamber, the sealing assembly can effectively prevent the filtrate from leaking out from the gaps between the filter plates during the pressurized filtration process, thus ensuring filtration efficiency and a clean working environment.
[0003] The existing filter plate sealing components mainly consist of sealing rings. However, these sealing rings will age and wear during long-term filtration. The sealing rings themselves do not have a self-sealing effect, which leads to a decrease in their sealing performance. Furthermore, when the sealing rings are completely damaged, they need to be replaced. Replacing the existing filter plate sealing components is cumbersome, time-consuming, and labor-intensive. Utility Model Content
[0004] The purpose of this utility model is to provide a filter plate sealing assembly for a filter press that has a simple structure and a reasonable design in order to solve the above problems.
[0005] This utility model achieves the above objectives through the following technical solutions:
[0006] A filter plate sealing assembly for a filter press includes a plate and frame body. The plate and frame body has an internal mounting cavity, and the filter plate body is disposed inside the mounting cavity. A silicone ring is fixedly installed on the outside of the filter plate body, and a sealing ring is fixedly installed on the outside of the silicone ring. The sealing ring is interference-fitted with the inside of the mounting cavity. Locking mechanisms are provided at the top and bottom of the plate and frame body.
[0007] Preferably, positioning holes are provided at the four corners of the front and rear sides of the plate frame body, and sealing rings are fixedly installed on the plate frame body outside the positioning holes. Fixing brackets are fixedly installed on the top of the left and right sides of the plate frame body.
[0008] Preferably, the locking mechanism includes a mounting groove, a power component, and a locking component. The mounting groove is located at the top center and bottom center of the plate frame body, and the power component and the locking component are both disposed within the mounting groove.
[0009] Preferably, the power assembly includes a first guide rod fixedly connected along the length of the mounting groove. Two first fixing blocks are symmetrically slidably sleeved on the first guide rod. A fixing plate is fixedly installed on the side of each first fixing block away from the mounting cavity. An anti-slip pad is fixedly installed on the side of each fixing plate away from each other. A first spring is sleeved on the outside of the first guide rod and is located between the two first fixing blocks. A compression wedge is fixedly installed on the side of each first fixing block near the mounting cavity.
[0010] Preferably, the locking assembly includes two locking blocks that slide symmetrically through the inner wall of the mounting cavity. Each locking block has a pressure wedge block fixedly installed on its side away from the mounting cavity, which engages with the inclined groove on the extrusion wedge block. Each pressure wedge block has a mounting plate fixedly installed on its side away from the center of the mounting groove. A limiting block that fits against the side wall of the extrusion wedge block is fixedly connected to the top of the mounting plate. Second fixing blocks are fixedly installed on both the front and rear sides of the mounting plate. A second guide rod slides through the center of the second fixing block. The second guide rod is fixedly installed on the bottom surface inside the mounting groove. A second spring is sleeved on the lower part of the second guide rod, and the second spring is positioned between the second fixing block and the bottom surface inside the mounting groove.
[0011] Preferably, the sealing ring has two locking grooves symmetrically formed at both the top and bottom, and the locking grooves engage with the locking blocks.
[0012] The beneficial effects of this utility model are as follows: This utility model achieves the sealing of the filter plate through the sealing ring, and the inner wall of the sealing ring is provided with a silicone ring. The silicone ring itself is elastic, which realizes the buffering and adaptive expansion and contraction of the sealing ring. When worn, the elasticity of the silicone ring ensures that the sealing ring fits tightly with the installation cavity, extending the service life of the sealing ring. Furthermore, the locking mechanism enables the quick installation and disassembly of the sealing ring, which facilitates subsequent maintenance and replacement. Attached Figure Description
[0013] Figure 1 This is a three-dimensional view of the overall structure of this utility model;
[0014] Figure 2 This is an exploded view of the overall structure of this utility model;
[0015] Figure 3 This is a partial sectional view of the plate frame body of this utility model;
[0016] Figure 4 This is the utility model Figure 3 Enlarged schematic diagram of region A in the middle.
[0017] In the diagram: 1. Plate and frame body; 2. Sealing ring; 3. Positioning hole; 4. Filter plate body; 5. Sealing ring; 6. Fixed bracket; 7. Locking mechanism; 71. Mounting groove; 72. Power assembly; 721. Anti-slip pad; 722. Fixed plate; 723. Spring No. 1; 724. Guide rod No. 1; 725. Compression wedge; 726. Fixed block No. 1; 73. Locking assembly; 731. Guide rod No. 2; 732. Fixed block No. 2; 733. Mounting plate; 734. Spring No. 2; 735. Limiting block; 736. Locking block; 737. Compression wedge; 8. Locking groove; 9. Silicone ring; 10. Mounting cavity. Detailed Implementation
[0018] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.
[0019] Example
[0020] Please see Figure 1 and Figure 2 A filter plate sealing assembly for a filter press includes a plate and frame body 1. The plate and frame body 1 has an installation cavity 10 inside. The installation cavity 10 contains a filter plate body 4. A silicone ring 9 is fixedly installed on the outside of the filter plate body 4. A sealing ring 5 is fixedly installed on the outside of the silicone ring 9. The sealing ring 5 is interference-fitted with the inside of the installation cavity 10. Locking mechanisms 7 are provided at the top and bottom of the plate and frame body 1. Positioning holes 3 are provided at the four corners of the front and rear sides of the plate and frame body 1. Sealing rings 2 are fixedly installed on the outside of the positioning holes 3 on the plate and frame body 1. Fixed brackets 6 are fixedly installed on the top of the left and right sides of the plate and frame body 1.
[0021] In use, the plate and frame body 1 is used to install and fix the bracket 6 and the locking mechanism 7. The locking mechanism 7 is used to lock and fix the sealing ring 5, which facilitates the quick installation and disassembly of the sealing ring 5 and the filter plate body 4 on it. The sealing ring 5 is used to seal the plate and frame body 1. The silicone ring 9 is used to achieve the elastic expansion and contraction of the sealing ring 5. When the sealing ring 5 is worn, it still maintains the seal between the sealing ring 5 and the mounting cavity 10. The sealing ring 5 itself is made of rubber and also has elasticity.
[0022] Please see Figure 2 , Figure 3 and Figure 4 The locking mechanism 7 includes a mounting groove 71, a power component 72, and a locking component 73. The mounting groove 71 is located at the top center and bottom center of the plate frame body 1. The power component 72 and the locking component 73 are both located within the mounting groove 71. The power component 72 includes a first guide rod 724 fixedly connected to the mounting groove 71 along its length. Two first fixing blocks 726 are symmetrically slidably mounted on the first guide rod 724. A fixing plate 722 is fixedly mounted on the side of each first fixing block 726 away from the mounting cavity 10. An anti-slip pad 721 is fixedly mounted on the side of each fixing plate 722 away from each other. A first spring 723 is sleeved on the outside of the first guide rod 724. The first spring 723 is located between the two first fixing blocks 726. A compression wedge 725 is fixedly mounted on the side of each first fixing block 726 near the mounting cavity 10.
[0023] Please see Figure 2 , Figure 3 and Figure 4The locking assembly 73 includes two locking blocks 736 that slide symmetrically through the inner wall of the mounting cavity 10. On the side of each locking block 736 away from the mounting cavity 10, a pressure wedge 737 that cooperates with the inclined groove on the extrusion wedge 725 is fixedly installed. On the side of each pressure wedge 737 away from the center of the mounting groove 71, a mounting plate 733 is fixedly installed. A limiting block 735 that fits against the side wall of the extrusion wedge 725 is fixedly connected to the top of the mounting plate 733. A second fixing block 732 is fixedly installed on both the front and rear sides of the mounting plate 733. A second guide rod 731 slides through the center of the second fixing block 732. The second guide rod 731 is fixedly installed on the bottom surface inside the mounting groove 71. A second spring 734 is sleeved on the lower part of the second guide rod 731. The second spring 734 is located between the second fixing block 732 and the bottom surface inside the mounting groove 71. Two locking grooves 8 are symmetrically opened on the top and bottom of the sealing ring 5. The locking grooves 8 are engaged with the locking blocks 736.
[0024] When disassembling and maintaining the filter plate body 4, first pinch the anti-slip pad 721 (used for anti-slip) to move the fixing plate 722 and the first fixing block 726 thereon toward each other, simultaneously compressing the first spring 723, which in turn moves the two pressing wedges 725 toward each other. Then, release the pressure of the pressing wedges 725 on the pressure-bearing wedge 737. At this point, under the elastic force of the second spring 734, the second fixing block 732 and the mounting plate 733 thereon move upwards, simultaneously moving the pressure-bearing wedge 737 and the locking block 736 thereon upwards, releasing the locking block 736. Locking and fixing groove 8, at this time, filter plate body 4 is taken out from installation cavity 10. When installation is required after maintenance, squeeze anti-slip pad 721 again. At this time, locking block 736 retracts into installation groove 71. Install filter plate body 4 into installation cavity 10. Release anti-slip pad 721. Under the restoring force of spring 723, drive fixing block 726 and pressing wedge 725 to move away from each other. Simultaneously, press wedge 737 and locking block 736 move downward. Locking groove 8 is locked and fixed by locking block 736, thus realizing quick installation and disassembly of filter plate body 4.
[0025] It should be noted that the filter press uses a filter plate sealing assembly. During use, first, the anti-slip pad 721 is squeezed (for anti-slip purposes), causing the fixed plate 722 and its first fixed block 726 to move towards each other. Simultaneously, the first spring 723 is compressed, synchronously causing the two pressing wedges 725 to move towards each other. Then, the pressing wedges 725 are released from their pressure on the pressure-bearing wedge 737. At this point, under the elastic force of the second spring 734, the second fixed block 732 and its mounting plate 733 move upwards, simultaneously causing the pressure-bearing wedge 737 and its locking block 736 to move upwards. The movement releases the locking block 736 from locking the locking groove 8, enabling quick disassembly of the filter plate body 4. Squeezing the anti-slip pad 721 again places the filter plate body 4 into the mounting cavity 10. Releasing the anti-slip pad 721 and locking the filter plate body 4 with the locking block 736 again allows for quick installation and disassembly of the filter plate body 4, improving installation and disassembly efficiency. The sealing ring 5 has a silicone ring 9 inside, enhancing its elasticity and ensuring that it remains in contact with the inner wall of the mounting cavity 10 even when worn, thus extending its service life.
[0026] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A filter plate sealing assembly for a filter press, comprising a plate and frame body (1), characterized in that: The plate frame body (1) has an installation cavity (10) inside, and a filter plate body (4) is installed inside the installation cavity (10). A silicone ring (9) is fixedly installed on the outside of the filter plate body (4), and a sealing ring (5) is fixedly installed on the outside of the silicone ring (9). The sealing ring (5) is interference-fitted with the inside of the installation cavity (10). Locking mechanisms (7) are provided at the top and bottom of the plate frame body (1).
2. The filter plate sealing assembly for a filter press according to claim 1, characterized in that: The plate frame body (1) has positioning holes (3) at the four corners on both the front and rear sides, and a sealing ring (2) is fixedly installed on the outside of the positioning holes (3). Fixing brackets (6) are fixedly installed on the top of both the left and right sides of the plate frame body (1).
3. The filter plate sealing assembly for a filter press according to claim 1, characterized in that: The locking mechanism (7) includes a mounting groove (71), a power component (72) and a locking component (73). The mounting groove (71) is located at the top center and bottom center of the plate frame body (1). The power component (72) and the locking component (73) are both located in the mounting groove (71).
4. The filter plate sealing assembly for a filter press according to claim 3, characterized in that: The power assembly (72) includes a first guide rod (724) fixedly connected to the length direction of the mounting groove (71). Two first fixing blocks (726) are symmetrically slidably sleeved on the first guide rod (724). A fixing plate (722) is fixedly installed on the side of the two first fixing blocks (726) away from the mounting cavity (10). An anti-slip pad (721) is fixedly installed on the side of the two fixing plates (722) away from each other. A first spring (723) is sleeved on the outside of the first guide rod (724). The first spring (723) is located between the two first fixing blocks (726). A compression wedge (725) is fixedly installed on the side of the two first fixing blocks (726) close to the mounting cavity (10).
5. The filter plate sealing assembly for a filter press according to claim 4, characterized in that: The locking assembly (73) includes two locking blocks (736) that slide symmetrically through the inner wall of the mounting cavity (10). On the side of each locking block (736) away from the mounting cavity (10), a pressure wedge (737) is fixedly installed that mates with the inclined groove on the compression wedge (725). On the side of each pressure wedge (737) away from the center of the mounting groove (71), a mounting plate (733) is fixedly installed. The top of the mounting plate (733) is fixedly connected to a component that is connected to the compression wedge (725). The side wall is fitted with a limiting block (735). The mounting plate (733) is fixedly installed with a second fixing block (732) on both the front and rear sides. The center of the second fixing block (732) is slidably penetrated by a second guide rod (731). The second guide rod (731) is fixedly installed on the bottom surface inside the mounting groove (71). The lower part of the second guide rod (731) is fitted with a second spring (734). The second spring (734) is located between the second fixing block (732) and the bottom surface inside the mounting groove (71).
6. The filter plate sealing assembly for a filter press according to claim 5, characterized in that: The sealing ring (5) has two locking grooves (8) symmetrically opened at the top and bottom, and the locking grooves (8) are engaged with the locking block (736).