An ultra-high pressure filter plate assembly for filter press

By installing a buffer protection component inside the filter plate body of the filter press, the problem of filter plate damage due to lack of buffer structure is solved, thus protecting the filter plate, extending its service life, and reducing equipment maintenance costs.

CN224485086UActive Publication Date: 2026-07-14HENGSHUI HAIHONG ENVIRONMENTAL EQUIP MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENGSHUI HAIHONG ENVIRONMENTAL EQUIP MFG CO LTD
Filing Date
2025-08-13
Publication Date
2026-07-14

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Abstract

The utility model provides a kind of ultra-high pressure filter plate assembly for filter press, it is related to filter press technical field, including filter plate main body, the inside of filter plate main body is provided with buffer protection assembly, the buffer protection assembly includes fixed frame, the upper and lower end surface of the fixed frame is connected with three groups of rubber buffer pad, the inside of the both sides of the fixed frame is equally provided with slot hole, the inside of slot hole is inserted with support rod, the central position of support rod is connected with damper. When using again in the utility model, pressure will impact buffer frame, buffer frame is extruded and will extrude filter plate main body, at this time, push plate will move, realize the extrusion of spring, cooperate damper to realize buffering effect, realize the protection of filter plate main body, avoid the pressure applied by hydraulic system when using directly acts on filter plate main body, cause the problem of filter plate main body to bear excessive pressure and damage, improve the service life of filter plate main body.
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Description

Technical Field

[0001] This utility model relates to the field of filter press technology, and in particular to an ultra-high pressure filter plate assembly for a filter press. Background Technology

[0002] A filter press is a mechanical device that effectively separates solid particles from liquid in a suspension by applying external pressure. It is a traditional solid-liquid separation device and is widely used in industries such as chemical, pharmaceutical, metallurgical, dye, food, brewing, ceramics and environmental protection.

[0003] As disclosed in announcement number CN220572748U, a filter plate assembly for an ultra-high pressure filter press includes a frame, a filter plate and water plate mechanism mounted on the frame, a mold opening device on the side of the frame, multiple hydraulic cylinders mounted at the ends of the frame, a feed inlet on the frame and located within the filter plate and water plate mechanism, and a high-pressure water device at the bottom of the frame. The filter plate and water plate mechanism includes multiple filter plate bodies and water plate bodies mounted on the frame. Each filter plate body has membranes snapped onto both sides, and each membrane has a filter cloth on its surface, positioned between adjacent filter plate bodies and water plate bodies. This filter plate assembly for an ultra-high pressure filter press is easier to maintain than existing technologies, and it protects the membranes from excessive pressure, thus increasing their service life and reducing the operating costs of the filter press.

[0004] Compared to existing filter presses, this patent makes maintenance easier. However, existing devices do not have a buffer structure on the surface of the filter plate during use. This causes the pressure applied by the hydraulic system to act directly on the filter plate, resulting in the filter plate being damaged due to excessive pressure. Utility Model Content

[0005] The purpose of this invention is to solve the problem that in existing devices, the surface of the filter plate does not have a buffer structure, which causes the pressure applied by the hydraulic system to act directly on the filter plate, resulting in the filter plate being damaged due to excessive pressure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an ultra-high pressure filter plate assembly for a filter press, comprising a filter plate body, wherein a buffer protection assembly is provided inside the filter plate body, the buffer protection assembly comprising a fixing frame, wherein three sets of rubber buffer pads are connected to the upper and lower surfaces of the fixing frame, wherein slots are provided inside both sides of the fixing frame, wherein a support rod is inserted into the slots, wherein a damper is connected to the center of the support rod, wherein springs are sleeved on both sides of the support rod, wherein a push plate is connected to the inner side of the spring, wherein a rotating rod is connected to the surface of the push plate, wherein a rotating shaft is connected to one side of the rotating rod, and a buffer frame is fixedly connected to the outer side of the rotating shaft.

[0007] Furthermore, the inner wall of the push plate is in contact with the outer surface of the rotating rod, and the push plate and the rotating rod form a rotatable connection.

[0008] Furthermore, the push plate and the spring form an elastic structure, and the rotating rod is rotatably connected to the buffer frame via a rotating shaft.

[0009] Furthermore, the rubber cushioning pad is circular in shape and made of rubber.

[0010] Furthermore, the buffer frame is rectangular in shape, and the spring is made of titanium alloy.

[0011] Furthermore, both sides of the filter plate body are connected to a disassembly assembly, which includes a threaded rod and a handle connected to the rear end of the threaded rod.

[0012] Furthermore, a bearing sleeve is connected to the surface of the threaded rod near the throttle, and a moving block is connected to the other side surface of the threaded rod.

[0013] Furthermore, the movable block has a threaded hole inside, a locking block is connected to the front end of the movable block, and locking grooves are provided on both sides of the fixing frame.

[0014] Furthermore, the position and size of the slot match the position and size of the block, the block and the slot form an engaging connection, and the threaded rod and the throttle form a fixed connection.

[0015] Furthermore, the threaded rod and the bearing sleeve form a rotatable connection, and the threaded rod and the movable block form a threaded connection through the threaded hole.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] 1. In this utility model, when in use, the pressure will impact the buffer frame, and the buffer frame will be squeezed against the filter plate body. At this time, the push plate will move to squeeze the spring. With the help of the damper, a buffering effect can be achieved, which protects the filter plate body and avoids the problem that the pressure applied by the hydraulic system will directly act on the filter plate body during use, causing the filter plate body to be damaged due to excessive pressure. This improves the service life of the filter plate body.

[0018] 2. In this utility model, the spring and damper may experience elastic fatigue after prolonged use, which will affect the buffering effect. At this time, the handle can be turned to pull the block out of the slot, and then the entire fixing frame can be replaced to avoid the problem of elastic fatigue affecting normal use. Attached Figure Description

[0019] Figure 1 This utility model provides a three-dimensional structural schematic diagram of an ultra-high pressure filter plate assembly for a filter press;

[0020] Figure 2 This utility model provides a three-dimensional structural diagram of an ultra-high pressure filter plate assembly for a filter press from another angle.

[0021] Figure 3 This utility model provides a partially exploded structural diagram of an ultra-high pressure filter plate assembly for a filter press;

[0022] Figure 4 This utility model provides a cross-sectional structural diagram of an ultra-high pressure filter plate assembly for a filter press;

[0023] Figure 5 This invention presents an exploded structural diagram of an ultra-high pressure filter plate assembly for a filter press.

[0024] Legend: 1. Filter plate body; 2. Buffer protection assembly; 201. Fixing frame; 202. Rubber buffer pad; 203. Groove; 204. Support rod; 205. Damper; 206. Spring; 207. Push plate; 208. Rotating rod; 209. Rotating shaft; 210. Buffer frame; 3. Disassembly and assembly assembly; 301. Threaded rod; 302. Rotary handle; 303. Bearing sleeve; 304. Moving block; 305. Threaded hole; 306. Locking block; 307. Locking groove. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Example 1, as Figure 1 - Figure 4As shown, this utility model provides an ultra-high pressure filter plate assembly for a filter press, including a filter plate body 1. A buffer protection assembly 2 is provided inside the filter plate body 1. The buffer protection assembly 2 includes a fixing frame 201. Three sets of rubber buffer pads 202 are connected to the upper and lower surfaces of the fixing frame 201. Slots 203 are opened inside both sides of the fixing frame 201. Support rods 204 are inserted into the slots 203. A damper 205 is connected to the center of the support rod 204. Springs 206 are sleeved on both sides of the support rod 204. A push plate 207 is connected to the inner side of the spring 206. A rotating rod 208 is connected to the surface of the device. A rotating shaft 209 is connected to one side of the rotating rod 208. A buffer frame 210 is fixedly connected to the outside of the rotating shaft 209. The inner wall of the push plate 207 is in contact with the outer surface of the rotating rod 208. The push plate 207 and the rotating rod 208 form a rotating connection. The push plate 207 and the spring 206 form an elastic structure. The rotating rod 208 is connected to the buffer frame 210 through the rotating shaft 209. The rubber buffer pad 202 is circular in shape and made of rubber. The buffer frame 210 is rectangular in shape. The spring 206 is made of titanium alloy.

[0028] The effect achieved in Embodiment 1 is that, during the actual operation of the filter press, when the hydraulic system is activated and pressure is applied, this pressure is precisely transmitted to the buffer frame 210, driving the buffer frame 210 to move smoothly and controllably toward the surface of the fixed frame 201. During the movement of the buffer frame 210, it forms a dynamic connection with the rotating rod 208 via the rotating shaft 209. As the buffer frame 210 continues to advance, the rotating shaft 209 drives the rotating rod 208 to rotate around its own axis. While rotating, one end of the rotating rod 208 contacts the push plate 207 and generates an interaction force, thereby pushing the push plate 207 to move along the axial direction of the support rod 204. The movement of the push plate 207 is not without obstruction; it gradually approaches and compresses the pre-set spring 206. When compressed, spring 206 undergoes elastic deformation based on its elastic properties, storing some energy and applying a spring force opposite to the compression direction to push plate 207, thus providing initial buffering. Simultaneously, damper 205 also functions. Under the compression of buffer frame 210, the damping medium inside damper 205 generates flow resistance, which automatically adjusts with the changing speed of buffer frame 210, creating a dynamic damping effect. Damper 205 and spring 206 work together to form a highly efficient shock absorption and buffering system. Spring 206 primarily absorbs and releases energy, while damper 205 dissipates energy, preventing excessive vibration and rebound. The pressure applied by the hydraulic system undergoes multiple stages of buffering and attenuation before reaching the filter plate body 1. The enormous pressure that might have directly acted on the filter plate body 1 is shared and mitigated by buffer frame 210, rotating rod 208, push plate 207, spring 206, and damper 205. This ensures that the filter plate body 1 will not be subjected to excessive pressure during actual use, effectively avoiding problems such as deformation and damage to the filter plate body 1 caused by excessive pressure, significantly improving the service life of the filter plate body 1, reducing equipment maintenance costs and downtime, and providing a reliable guarantee for the stable operation of the filter press.

[0029] Example 2, as Figure 1 and Figure 5As shown, both sides of the filter plate body 1 are connected to a disassembly assembly 3. The disassembly assembly 3 includes a threaded rod 301. The rear end of the threaded rod 301 is connected to a handle 302. A bearing sleeve 303 is connected to the surface of the threaded rod 301 near the handle 302. A moving block 304 is connected to the other side of the threaded rod 301. A threaded hole 305 is opened inside the moving block 304. A locking block 306 is connected to the front end of the moving block 304. Both sides of the fixed frame 201 are provided with a locking groove 307. The position and size of the locking groove 307 match the position and size of the locking block 306. The locking block 306 and the locking groove 307 form a locking connection. The threaded rod 301 and the handle 302 form a fixed connection. The threaded rod 301 and the bearing sleeve 303 form a rotatable connection. The threaded rod 301 and the moving block 304 form a threaded connection through the threaded hole 305.

[0030] The effect achieved in Embodiment 2 is that, after prolonged use, the spring 206 and damper 205 will experience elastic fatigue, affecting the buffering effect. At this point, the fixing bracket 201 can be replaced, and the handle 302 can be rotated forward, allowing the threaded rod 301 to rotate forward. The bearing sleeve 303 can stabilize the threaded rod 301, improving its stability during rotation. When the threaded rod 301 rotates forward, it also interacts with the moving block 304 through the threaded hole 305, resulting in forward threaded rotation. This allows the moving block 304 to move outward and pull the locking block 306 out of the slot 307. Then, the old fixing bracket 201 can be removed from the filter plate body 1, and the new fixing bracket 201 can be pushed into the filter plate body 1. The reverse handle 302 drives the threaded rod 301 to reverse, so that the moving block 304 can drive the locking block 306 into the slot 307 through the reverse thread rotation, thereby fixing the fixing bracket 201. In this way, the entire fixing bracket 201 can be replaced, avoiding the problem of elastic fatigue affecting normal use.

[0031] Working principle: During use, pressure impacts the buffer frame 210, which is then squeezed against the filter plate body 1. At this time, the push plate 207 moves, compressing the spring 206. The damper 205, under the compression of the buffer frame 210, also works with the spring 206 to provide shock absorption and cushioning, protecting the filter plate body 1 and preventing the pressure applied by the hydraulic system from directly acting on the filter plate body 1, thus avoiding damage due to excessive pressure. This improves the service life of the filter plate body 1. Over time, the spring 206 and damper 205 may experience elastic fatigue, affecting the cushioning effect. In this case, the handle 302 can be rotated to pull the locking block 306 out of the slot 307, and then the entire fixing frame 201 can be replaced to prevent elastic fatigue from affecting normal use.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A high-pressure filter plate assembly for a filter press, comprising a filter plate body (1), characterized in that: The filter plate body (1) is provided with a buffer protection component (2) inside; The buffer protection component (2) includes a fixed frame (201). Three sets of rubber buffer pads (202) are connected to the upper and lower surfaces of the fixed frame (201). Slots (203) are opened inside both sides of the fixed frame (201). A support rod (204) is inserted into the slot (203). A damper (205) is connected to the center of the support rod (204). Springs (206) are sleeved on both sides of the support rod (204). A push plate (207) is connected to the inner side of the spring (206). A rotating rod (208) is connected to the surface of the push plate (207). A rotating shaft (209) is connected to one side of the rotating rod (208). A buffer frame (210) is fixedly connected to the outer side of the rotating shaft (209).

2. The ultra-high pressure filter plate assembly for a filter press according to claim 1, characterized in that: The inner wall of the push plate (207) is in contact with the outer surface of the rotating rod (208), and the push plate (207) and the rotating rod (208) form a rotatable connection.

3. The ultra-high pressure filter plate assembly for a filter press according to claim 2, characterized in that: The push plate (207) and the spring (206) form an elastic structure, and the rotating rod (208) is rotatably connected to the buffer frame (210) through the rotating shaft (209).

4. The ultra-high pressure filter plate assembly for a filter press according to claim 3, characterized in that: The rubber buffer pad (202) is circular in shape and made of rubber.

5. The ultra-high pressure filter plate assembly for a filter press according to claim 4, characterized in that: The buffer frame (210) is rectangular in shape, and the spring (206) is made of titanium alloy.

6. The ultra-high pressure filter plate assembly for a filter press according to claim 1, characterized in that: The filter plate body (1) is connected to two sides of a disassembly assembly (3), the disassembly assembly (3) includes a threaded rod (301), and a throttle (302) is connected to the rear end of the threaded rod (301).

7. The ultra-high pressure filter plate assembly for a filter press according to claim 6, characterized in that: The threaded rod (301) is connected to a bearing sleeve (303) on the surface near the throttle (302), and a moving block (304) is connected to the other side surface of the threaded rod (301).

8. The ultra-high pressure filter plate assembly for a filter press according to claim 7, characterized in that: The movable block (304) has a threaded hole (305) inside, and a locking block (306) is connected to the front end of the movable block (304). The two sides of the fixing frame (201) are provided with locking grooves (307).

9. The ultra-high pressure filter plate assembly for a filter press according to claim 8, characterized in that: The position and size of the slot (307) match the position and size of the block (306), the block (306) and the slot (307) form an engaging connection, and the threaded rod (301) and the throttle (302) form a fixed connection.

10. The ultra-high pressure filter plate assembly for a filter press according to claim 9, characterized in that: The threaded rod (301) and the bearing sleeve (303) form a rotatable connection, and the threaded rod (301) and the moving block (304) form a threaded connection through the threaded hole (305).