Filter press mechanism and filter press thereof
By designing a protective mechanism at the output end of the hydraulic unit, the bellows can be quickly disassembled, solving the problem of difficult bellows maintenance in existing filter presses and improving maintenance efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR THIRD ENG BUREAU GRP SOUTH CHINA CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-12
AI Technical Summary
The existing hydraulic structure of filter presses, with its bellows fixed at the output end, makes maintenance difficult and hinders quick disassembly and maintenance.
A protective mechanism was designed, including a protective part and a quick-release part. The protective part is sleeved on the output end of the hydraulic unit and connected to the hydraulic unit through the quick-release part, so as to realize the quick disassembly and maintenance of the bellows.
The maintenance process at the output end of the hydraulic unit is simplified, allowing the bellows to be disassembled quickly and stably, thus improving maintenance efficiency.
Smart Images

Figure CN224345477U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filtration equipment, and in particular to a filter press mechanism and its filter press. Background Technology
[0002] Before performing the filter press operation, a filter cloth needs to be laid on the filter plate. Then, multiple sets of filter plates are pressed together by the pressing mechanism to seal the sides of the filter plates. After the slurry passes through the filter plate group, solid-liquid separation is achieved. The pressing mechanism is operated hydraulically to press and hold multiple sets of filter plates together.
[0003] The hydraulic mechanism uses the output of the hydraulic rod to drive the pressing plate to successively squeeze multiple filter plates closer together. Finally, with the help of the thrust plate, the multiple filter plates are tightly joined together. Since water flow is generated during the solid-liquid separation process, the output end of the existing hydraulic structure is fitted with a bellows, which is fixed with screws. This fixing method makes it very difficult to disassemble the bellows for maintenance of the hydraulic output end. In view of this, this solution proposes a filter press mechanism and its filter press to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a filter press mechanism and a filter press thereof to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a filter press mechanism, including a frame, a hydraulic unit disposed on one side of the frame, and further comprising:
[0006] The filter plate mechanism is inserted and connected to the middle of the frame. One end of the filter plate mechanism is connected to the output end of the hydraulic unit. The filter plate mechanism is driven to close and disperse by the hydraulic unit.
[0007] A protective mechanism is provided at the output end of the hydraulic unit. The protective mechanism includes a protective part and a quick-release part. The protective part is sleeved on the output end of the hydraulic unit, and the quick-release part is connected to the end of the protective part near the filter plate mechanism.
[0008] Preferably, the filter plate mechanism includes:
[0009] A thrust plate, which is fixedly connected to the middle of the frame and located at the end away from the hydraulic unit;
[0010] A pressure plate is slidably inserted into the middle of the frame, and one side of the pressure plate is fixedly connected to the output end of the hydraulic unit.
[0011] The filter plate unit, multiple sets of the filter plate units are horizontally arrayed and interspersed in the middle of the frame, and the multiple sets of the filter plate units are arranged between the thrust plate and the pressure plate on opposite sides;
[0012] Sliding guides, multiple sets of which are respectively disposed on both sides of the top of the frame, are used to guide the sliding of the filter plate unit and the pressing plate.
[0013] Preferably, the sliding guide includes:
[0014] A fixing block is fixedly connected to the top of the frame, and a support guide rod is fixedly connected to the top of the fixing block;
[0015] Sliding connecting blocks, multiple sets of sliding connecting blocks are respectively fixedly connected to both sides of multiple sets of filter plate units and pressing plates, and multiple sets of sliding connecting blocks are respectively slidably sleeved on the outer wall of multiple sets of support guide rods.
[0016] Preferably, the side wall of the frame is provided with a plurality of drain pipes, one end of each of the plurality of drain pipes passing through the middle of the frame, and the through end of the plurality of drain pipes corresponding to the drain end of the plurality of filter plate units after they are attached.
[0017] Preferably, the protective part includes a bellows, which is sleeved on the outer wall of the output end of the hydraulic unit. The output end of the hydraulic unit is fixedly connected to a connecting plate, and one end of the bellows is detachably fixed to the connecting plate via a quick-release part.
[0018] Preferably, one end of the corrugated pipe is provided with an L-shaped insert, the L-shaped insert is inserted into one side of the connecting plate, and one end of the L-shaped insert is inserted into the quick-release part.
[0019] Preferably, the quick-release part includes an insert rod that is inserted into the connecting plate in a horizontal direction. One end of the insert rod passes through one end of the L-shaped insert block. A limiting groove is provided on the side wall where the insert rod intersects with the connecting plate. A top support spring is provided in the limiting groove. A limiting slider is fixedly connected to the outer wall of the insert rod. The limiting slider is slidably inserted into the limiting groove.
[0020] A filter press employs the aforementioned filter pressing mechanism, comprising a mixing tank, wherein a feed pipe and a discharge pipe are respectively provided at both ends of the mixing tank, and the end of the discharge pipe away from the mixing tank is connected in a through-flow manner to a thrust plate.
[0021] Preferably, the bottom of the mixing tank is provided with a support wedge, the support wedge is used for the inclined support of the mixing tank, and the end of the mixing tank connected to the feed pipe is higher than the end connected to the discharge pipe.
[0022] The technical effects and advantages of this utility model are as follows:
[0023] This utility model features a protective mechanism. The protective part is fitted onto the outer wall of the hydraulic unit's output end to protect it during retraction and extension. The protective part is electrically connected to the hydraulic unit's output end via a quick-release mechanism. This structural combination allows for rapid and stable disassembly of the protective part, facilitating maintenance of the hydraulic unit's output end. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0025] Figure 2 This is a side view of the overall structure of this utility model.
[0026] Figure 3 This is a top view of the overall structure of this utility model.
[0027] Figure 4 This is a schematic diagram showing the structural connection between the hydraulic unit and the protective mechanism of this utility model.
[0028] Figure 5 This is a cross-sectional view of the connection between the hydraulic unit and the bellows of this utility model.
[0029] Figure 6 This utility model Figure 5 A magnified schematic diagram of the structure at point A in the middle.
[0030] In the diagram: 1. Frame; 2. Thrust plate; 3. Pressure plate; 4. Filter plate unit; 401. Drain pipe; 5. Fixing block; 501. Support guide rod; 6. Sliding connecting block; 7. Hydraulic unit; 701. Connecting plate; 8. Bellows; 801. L-shaped insert; 802. Insert rod; 803. Limiting slider; 804. Top support spring; 9. Mixing tank; 901. Feed pipe; 902. Discharge pipe; 10. Supporting inclined block. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] refer to Figure 1-6 As shown;
[0033] Example 1: This utility model provides a filter press mechanism, including a frame 1, a hydraulic unit 7 disposed on one side of the frame 1, and further including:
[0034] The filter plate mechanism is inserted and connected in the middle of the frame 1. One end of the filter plate mechanism is connected to the output end of the hydraulic unit 7. The filter plate mechanism is driven to close and disperse by the hydraulic unit 7.
[0035] Specifically, the filter plate mechanism includes:
[0036] Thrust plate 2 is fixedly connected to the middle of frame 1 and located at the end away from hydraulic unit 7;
[0037] It should be noted that the middle part of the frame 1 has a rectangular open structure, the thrust plate 2 is fixedly connected to one end of the frame 1, and the middle part of the thrust plate 2 and the connection end of the frame 1 are provided with a feeding channel in the horizontal direction.
[0038] The clamping plate 3 is slidably inserted into the middle of the frame 1, and one side of the clamping plate 3 is fixedly connected to the output end of the hydraulic unit 7.
[0039] It should be noted that the clamping plate 3 is fixedly connected to the output end of the hydraulic unit 7. When the output end of the hydraulic unit 7 extends or retracts, it drives the clamping plate 3 to move horizontally.
[0040] Filter plate unit 4, multiple sets of filter plate units 4 are horizontally arrayed and interspersed in the middle of the frame 1, and multiple sets of filter plate units 4 are arranged between the thrust plate 2 and the clamping plate 3 on opposite sides. Multiple drain pipes 401 are provided on the side wall of the frame 1, one end of each drain pipe 401 passes through the middle of the frame 1, and the through end of the multiple drain pipes 401 corresponds to the drain end of the multiple sets of filter plate units 4 after they are attached.
[0041] It should be noted that the filter plate unit 4 consists of a filter frame and a filter cloth. The filter cloth is wrapped around both sides of the filter frame. After being squeezed by the pressing plate 3, the filter plate unit 4 is tightly attached and located between the thrust plate 2 and the pressing plate 3, thus forming a filter press channel. The medium to be filtered enters the filter press channel through the feed channel at the frame 1 and the thrust plate 2, and is filtered in the filter press channel. The filtered liquid is discharged through the drain channel on the side of the frame 1 and then discharged through the drain pipe 401. The filter residue forms a filter cake on the side of the filter frame after being squeezed by hydraulic pressure, and is removed after the multiple filter plate units 4 are separated.
[0042] Multiple sliding guides are respectively set on both sides of the top of the frame 1. The sliding guides are used to guide the sliding of the filter plate unit 4 and the pressing plate 3.
[0043] Furthermore, the sliding guide includes:
[0044] Fixed block 5 is fixedly connected to the top of frame 1, and a support guide rod 501 is fixedly connected to the top of fixed block 5;
[0045] Sliding connecting blocks 6, multiple sets of sliding connecting blocks 6 are respectively fixedly connected to both sides of multiple sets of filter plate units 4 and pressing plates 3, and multiple sets of sliding connecting blocks 6 are respectively slidably sleeved on the outer wall of multiple sets of support guide rods 501.
[0046] It should be noted that by fitting the sliding connecting block 6 onto the support guide rod 501, the movement of the filter plate unit 4 and the pressing plate 3 is restricted, so as to ensure that multiple filter plate units 4 can fit tightly together after being squeezed by the hydraulic unit 7, thereby forming a stable filter pressing channel.
[0047] The protective mechanism is located at the output end of the hydraulic unit 7. The protective mechanism includes a protective part and a quick-release part. The protective part is sleeved on the output end of the hydraulic unit 7, and the quick-release part is connected to the end of the protective part near the filter plate mechanism.
[0048] Specifically, the protective part includes a bellows 8, which is sleeved on the outer wall of the output end of the hydraulic unit 7. The output end of the hydraulic unit 7 is fixedly connected to a connecting plate 701, and one end of the bellows 8 is detachably fixed to the connecting plate 701 through a quick-release part.
[0049] It should be noted that, by setting the bellows 8, when the output end of the hydraulic unit 7 is driven to extend or retract, the bellows 8 extends or retracts following the drive of the hydraulic unit 7, thereby using the bellows 8 to wrap and protect the output end of the hydraulic unit 7.
[0050] Specifically, one end of the bellows 8 is provided with an L-shaped plug 801, which is inserted and connected to one side of the connecting plate 701, and one end of the L-shaped plug 801 is inserted into the quick-release part.
[0051] Furthermore, the quick-release part includes an insertion rod 802, which is inserted and connected to the connecting plate 701 in a horizontal direction. One end of the insertion rod 802 passes through one end of the L-shaped insert 801. A limiting groove is provided on the side wall at the insertion point of the insertion rod 802 and the connecting plate 701. A top support spring 804 is provided in the limiting groove. A limiting slider 803 is fixedly connected to the outer wall of the insertion rod 802. The limiting slider 803 is slidably inserted and connected in the limiting groove.
[0052] It should be noted that an L-shaped slot is provided on the side of the connecting plate 701 near the output end of the hydraulic unit 7. The L-shaped insert 801 is made of soft material. When connecting the bellows 8 to the connecting plate 701, the L-shaped insert 801 is inserted into the L-shaped slot, and the insert rod 802 is inserted into the L-shaped insert 801 to fix the L-shaped insert 801 in the L-shaped slot. When it is necessary to disassemble the connection between the bellows 8 and the connecting plate 701, the insert rod 802 is pulled away from the connecting plate 701 to release the insertion between the insert rod 802 and the L-shaped insert 801. At this time, the L-shaped insert 801 can be pulled out from the L-shaped slot, so that the bellows 8 can be freely extended and retracted for maintenance of the output end of the hydraulic unit 7.
[0053] Example 2: A filter press, using a filter press mechanism from Example 1, includes a mixing tank 9. The mixing tank 9 has a feed pipe 901 and a discharge pipe 902 at its two ends, respectively. The end of the discharge pipe 902 away from the mixing tank 9 is connected to the thrust plate 2.
[0054] Specifically, a support inclined block 10 is provided at the bottom of the mixing tank 9. The support inclined block 10 is used for the inclined support of the mixing tank 9, and the end of the mixing tank 9 connected to the feed pipe 901 is higher than the end connected to the discharge pipe 902.
[0055] It should be noted that the mixing tank 9 draws the liquid to be treated through the feed pipe 901. After the liquid is drawn into the mixing tank 9, the reaction agent is added to help the liquid flocculate and precipitate. Then, the treated liquid is pressurized and transported to the filter press mechanism through the discharge pipe 902 for filter press treatment.
[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A filter press mechanism, comprising a frame (1), wherein a hydraulic unit (7) is disposed on one side of the frame (1), characterized in that, Also includes: The filter plate mechanism is inserted and connected in the middle of the frame (1). One end of the filter plate mechanism is connected to the output end of the hydraulic unit (7). The filter plate mechanism is driven to close and disperse by the hydraulic unit (7). The protective mechanism is located at the output end of the hydraulic unit (7). The protective mechanism includes a protective part and a quick-release part. The protective part is sleeved on the output end of the hydraulic unit (7), and the quick-release part is connected to the end of the protective part near the filter plate mechanism.
2. The filter press mechanism according to claim 1, characterized in that, The filter plate mechanism includes: Thrust plate (2), which is fixedly connected to the middle of the frame (1) and located at the end away from the hydraulic unit (7); A clamping plate (3) is slidably inserted into the middle of the frame (1), and one side of the clamping plate (3) is fixedly connected to the output end of the hydraulic unit (7). The filter plate unit (4) is horizontally arrayed and interspersed in the middle of the frame (1), and the filter plate unit (4) is disposed between the thrust plate (2) and the clamping plate (3) on opposite sides. Sliding guides, multiple sets of the sliding guides are respectively set on both sides of the top of the frame (1), the sliding guides are used to guide the sliding of the filter plate unit (4) and the pressing plate (3).
3. A filter press mechanism according to claim 2, characterized in that, The sliding guide includes: A fixing block (5) is fixedly connected to the top of the frame (1), and a support guide rod (501) is fixedly connected to the top of the fixing block (5); Sliding connecting blocks (6), multiple sets of the sliding connecting blocks (6) are respectively fixedly connected to both sides of multiple sets of filter plate units (4) and pressing plates (3), and multiple sets of the sliding connecting blocks (6) are respectively slidably sleeved on the outer wall of multiple sets of support guide rods (501).
4. A filter press mechanism according to claim 2, characterized in that, The side wall of the frame (1) is provided with a plurality of drain pipes (401), one end of each drain pipe (401) passes through the middle of the frame (1), and the through end of the plurality of drain pipes (401) corresponds to the drain end of the plurality of filter plate units (4) after they are attached.
5. A filter press mechanism according to claim 1, characterized in that, The protective part includes a bellows (8), which is sleeved on the outer wall of the output end of the hydraulic unit (7). The output end of the hydraulic unit (7) is fixedly connected to a connecting plate (701), and one end of the bellows (8) is detachably fixed to the connecting plate (701) through a quick-release part.
6. A filter press mechanism according to claim 5, characterized in that, One end of the corrugated pipe (8) is provided with an L-shaped plug (801), which is inserted into one side of the connecting plate (701), and one end of the L-shaped plug (801) is inserted into the quick-release part.
7. A filter press mechanism according to claim 6, characterized in that, The quick-release part includes an insert rod (802), which is horizontally connected to the connecting plate (701). One end of the insert rod (802) passes through one end of the L-shaped insert (801). A limiting groove is provided on the side wall of the insertion rod (802) where it intersects with the connecting plate (701). A top support spring (804) is provided in the limiting groove. A limiting slider (803) is fixedly connected to the outer wall of the insert rod (802). The limiting slider (803) is slidably inserted into the limiting groove.
8. A filter press, employing a filter press mechanism comprising any one of claims 1-7, characterized in that, It includes a mixing tank (9), with a feed pipe (901) and a discharge pipe (902) respectively provided at both ends of the mixing tank (9), and the end of the discharge pipe (902) away from the mixing tank (9) is connected to the thrust plate (2).
9. A filter press according to claim 8, characterized in that, The bottom end of the mixing tank (9) is provided with a support inclined block (10), which is used for the inclined support of the mixing tank (9), and the end of the mixing tank (9) connected to the feed pipe (901) is higher than the end connected to the discharge pipe (902).