Security filter

Abstract

The utility model relates to the technical field of filter equipment, in particular to a security filter which comprises a barrel, a top cover is arranged at the top of the barrel, a plurality of filter elements are arranged in the barrel, a limiting ring is arranged below the inner wall of the barrel, and an upper rotating plate and a lower rotating plate are arranged at the upper end and the lower end of each filter element respectively. The lower rotating plate is located above the limiting ring, rotating sealing rings are arranged on the outer edge of the upper rotating plate and the outer edge of the lower rotating plate correspondingly, a plurality of pushing plates are arranged below the upper rotating plate in the circumferential direction, a water inlet pipe working towards the pushing plates is arranged above the side wall of the barrel, and a water outlet pipe is arranged at the bottom of the barrel. And a blow-off pipe is arranged on the side wall of the barrel and positioned above the lower rotating plate.

Description

Technical Field

[0001] This utility model relates to the field of filter equipment technology, specifically a security filter. Background Technology

[0002] Security filters, also known as precision filters, typically have a stainless steel outer shell and use tubular filter elements such as PP melt-blown, wire-burned, pleated, titanium, and activated carbon filters as filtration elements. Different filter elements are selected based on different filtration media and design processes to meet the requirements of the effluent water quality.

[0003] When existing security filters are in use, the filter element near the inlet pipe is constantly subjected to the impact of the water flow pressure in the inlet pipe. Long-term use will cause the filter element near the inlet pipe to be damaged and need to be replaced with a new filter element, which will increase the cost of later use and maintenance. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a security filter. The water flow impacts the push plate, which drives the upper and lower rotating plates to rotate synchronously. At this time, the filter element rotates with the upper and lower rotating plates. The water flow entering the cylinder will rotate along the side wall of the cylinder. This not only avoids the water flow from impacting the filter element, but also ensures that the water flow rotates inside the cylinder. The centrifugal force when the filter element rotates can prevent more impurities from adhering to the surface of the filter element.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A security filter includes a cylindrical body with a top cover. Multiple filter elements are disposed inside the cylindrical body. A limiting ring is located on the lower part of the inner wall of the cylindrical body. An upper rotating plate and a lower rotating plate are respectively located at the upper and lower ends of each filter element, with the lower rotating plate positioned above the limiting ring. Rotary sealing rings are provided at the outer edges of both the upper and lower rotating plates. Multiple pushing plates are circumferentially disposed below the upper rotating plate. A water inlet pipe is located above the side wall of the cylindrical body, facing the pushing plates. A water outlet pipe is located at the bottom of the cylindrical body. A drain pipe is located above the lower rotating plate on the side wall of the cylindrical body.

[0007] Preferably, a support seat is provided on the side wall of the cylinder, and a rotating support arm is provided on the support seat. A threaded rod facing the top cover is threadedly installed at the end of the rotating support arm away from the support seat. A handle is provided at the top of the threaded rod, a bearing seat is provided at the top of the top cover, and a bearing adapted to the bearing seat is provided at the bottom of the threaded rod.

[0008] Preferably, the upper rotating plate and the lower rotating plate are provided with corresponding mounting holes, the upper and lower ends of the filter element are respectively installed in the corresponding mounting holes, the top of the filter element is provided with a handle, and the bottom of the filter element is provided with a water outlet.

[0009] Preferably, a spiral scraper is provided between the bottom side of the push plate and the top of the lower rotating plate, and the side of the scraper abuts against the inner wall of the cylinder.

[0010] Preferably, the side of the cylinder is provided with a viewing window, which is made of tempered glass.

[0011] Preferably, valves are provided on the inlet pipe, outlet pipe and sewage pipe.

[0012] Preferably, the push plate and the scraper are detachably connected, and the upper and lower ends of the filter element are detachably connected to the upper rotating plate and the lower rotating plate, respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model has a simple structure. The water flow impacts the push plate, causing the upper and lower rotating plates to rotate synchronously. At this time, the filter element rotates along with the upper and lower rotating plates. The water flow entering the cylinder will rotate along the side wall of the cylinder. This not only avoids the water flow from impacting the filter element, but also ensures that the water flow rotates inside the cylinder. The centrifugal force when the filter element rotates can prevent more impurities from adhering to the surface of the filter element.

[0015] 2. When the device is working, the handle can drive the threaded rod to rotate upward on the L-shaped rotating support arm, thereby causing the top cover to separate from the upper end of the cylinder. Since the rotating support arm is mounted on the support base, it is convenient to remove the top cover from the top of the cylinder by rotating the rotating support arm after the top cover is separated from the cylinder, so that the filter element inside the cylinder can be taken out for maintenance and cleaning.

[0016] 3. The viewing window of this device allows operators to easily observe the condition of the filter element inside the cylinder. This facilitates timely detection of filter element damage or excessive impurities, enabling timely cleaning or replacement. The tempered glass viewing window is not only strong but also corrosion-resistant, ensuring the safety and reliability of the equipment while allowing operators to easily observe the internal condition of the cylinder.

[0017] 4. This device has a scraper that can come into contact with the inside of the cylinder by setting a scraper between the top of the push plate and the bottom rotating plate. When the upper and lower rotating plates drive the filter element to rotate, the spiral scraper can scrape off the impurities attached to the inner wall of the cylinder. Since the scraper is spiral, the scraped impurities can be carried to the top of the bottom rotating plate, so that when the drain pipe is opened, the impurities can be discharged from the drain pipe. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0020] Figure 3 This is a cross-sectional view of the present invention;

[0021] Figure 4 This is a schematic diagram showing the installation position of the scraper.

[0022] In the diagram: 1. Cylinder; 2. Top cover; 3. Support base; 4. Rotary support arm; 5. Threaded rod; 6. Handle; 7. Limiting ring; 8. Upper rotating plate; 9. Lower rotating plate; 10. Filter element; 11. Push plate; 12. Inlet pipe; 13. Outlet pipe; 14. Drain pipe; 15. Scraper; 16. Handle; 17. Viewing window. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] A security filter, with the following structure Figures 1-4 As shown, the device includes a cylindrical body 1, a top cover 2 on the top of the cylindrical body 1, multiple filter elements 10 inside the cylindrical body 1, a limiting ring 7 on the lower part of the inner wall of the cylindrical body 1, an upper rotating plate 8 and a lower rotating plate 9 at the upper and lower ends of the filter elements 10 respectively, the lower rotating plate 9 being located above the limiting ring 7, a rotating sealing ring being provided at the outer edge of both the upper rotating plate 8 and the lower rotating plate 9, multiple pushing plates 11 being provided circumferentially below the upper rotating plate 8, a water inlet pipe 12 being provided above the side wall of the cylindrical body 1 facing the pushing plates 11, a water outlet pipe 13 being provided at the bottom of the cylindrical body 1, and a sewage discharge pipe 14 being provided above the lower rotating plate 9 on the side wall of the cylindrical body 1.

[0026] Since the upper and lower ends of multiple filter elements 10 are connected to the upper rotating plate 8 and the lower rotating plate 9 respectively, and the water flow direction of the inlet pipe 12 is set towards the push plate 11, under the action of the water flow impacting the push plate 11, the upper rotating plate 8 and the lower rotating plate 9 can be driven to rotate synchronously by the impact force of the water flow. At this time, the filter elements 10 rotate simultaneously with the upper rotating plate 8 and the lower rotating plate 9, and the water flowing into the cylinder 1 will rotate along the side wall of the cylinder 1. Since the upper rotating plate 8 and the lower rotating plate 9 are provided with rotating sealing rings (rotating sealing rings are existing technology and will not be described in detail here), it can ensure that the water entering the cylinder 1 is sealed by the upper rotating plate 8 and the lower rotating plate 9. The water flows from the filter element 10 to the drain pipe at the bottom of the cylinder 1. The impurities filtered by the filter element 10 can be discharged from the cylinder 1 through the drain pipe 14 by water flushing when filtration stops. Since the water inlet pipe 12 is set towards the push plate 11, it can avoid direct impact on the filter element 10, avoid damage to the filter element 10 due to long-term use, and ensure the service life of the filter element 10. Since the filter element 10 can rotate with the upper rotating plate 8 and the lower rotating plate 9 under the impact of the water flow in the water inlet pipe 12, it can ensure that the water flow rotates inside the cylinder 1. The centrifugal force when the filter element 10 rotates can prevent more impurities from adhering to the surface of the filter element 10.

[0027] The cylinder 1 has a support seat 3 on its side wall, and a rotating support arm 4 is provided on the support seat 3. The end of the rotating support arm 4 away from the support seat 3 is threadedly installed with a threaded rod 5 facing the top cover 2. The top of the threaded rod 5 is provided with a handle 6. The top of the top cover 2 is provided with a bearing seat. The bottom of the threaded rod 5 is provided with a bearing that is compatible with the bearing seat.

[0028] When it is necessary to open the top cover 2 and take out the filter element 10 inside the cylinder 1, the handle 6 can drive the threaded rod 5 to rotate upward on the L-shaped rotating support arm 4, thereby causing the top cover 2 to separate from the upper end of the cylinder 1. Since the rotating support arm 4 is rotatably mounted on the support base 3, it is convenient to remove the top cover 2 from the top of the cylinder 1 by rotating the rotating support arm 4 after the top cover 2 is separated from the cylinder 1, so that the filter element 10 inside the cylinder 1 can be taken out for maintenance and cleaning.

[0029] The upper rotating plate 8 and the lower rotating plate 9 are provided with corresponding mounting holes. The upper and lower ends of the filter element 10 are respectively installed in the corresponding mounting holes. The top end of the filter element 10 is provided with a handle 16, and the bottom end of the filter element 10 is provided with a water outlet.

[0030] The handle 16 facilitates the removal of the filter element 10 from between the upper rotating plate 8 and the lower rotating plate 9. When filtering water, the water containing impurities is located between the upper rotating plate 8 and the lower rotating plate 9. After being filtered by the filter element 10, the preliminarily purified water flows from the outlet at the bottom of the filter element 10 to the outlet pipe 13.

[0031] The side of the cylinder 1 is provided with a viewing window 17, which is made of tempered glass.

[0032] The viewing window 17 allows operators to observe the condition of the filter element 10 inside the cylinder 1, enabling them to promptly detect when the filter element 10 is damaged or has accumulated a lot of impurities, and to clean or replace it. The tempered glass viewing window 17 is not only strong but also corrosion-resistant, making it easy for operators to observe the internal condition of the cylinder 1 and ensuring the safety and reliability of the equipment.

[0033] Valves are installed on the inlet pipe 12, outlet pipe 13 and sewage pipe 14.

[0034] When water containing impurities is initially filtered, the valve of the drain pipe 14 is closed, and the valves of the inlet pipe 12 and the outlet pipe 13 are opened, so that the water containing impurities can be filtered by the filter element 10. When it is necessary to clean the impurities between the upper rotating plate 8 and the lower rotating plate 9 inside the cylinder 1, the valve of the outlet pipe 13 is closed, and the valves of the inlet pipe 12 and the drain pipe 14 are opened, so that the impurities inside the cylinder 1 can be flushed out. Then, the filter element 10 is cleaned by opening the top cover 2, and the impurities attached to the inside of the cylinder 1 are further cleaned.

[0035] Example 2

[0036] Based on Embodiment 1, a spiral scraper 15 is provided between the bottom side of the push plate 11 and the top of the lower rotating plate 9, and the side of the scraper 15 abuts against the inner wall of the cylinder 1. The push plate 11 and the scraper 15 are detachably connected, and the upper and lower ends of the filter element 10 are detachably connected to the upper rotating plate 8 and the lower rotating plate 9, respectively.

[0037] Because the water containing impurities is separated by the filter element 10 between the upper rotating plate 8 and the lower rotating plate 9, the impurities will adhere to the inner wall of the cylinder 1 under the rotation of the water flow. By setting a scraper 15 between the top of the push plate 11 and the lower rotating plate 9 that can abut against the inside of the cylinder 1, when the upper rotating plate 8 and the lower rotating plate 9 drive the filter element 10 to rotate, the spiral scraper 15 can scrape off the impurities attached to the inner wall of the cylinder 1. Since the scraper 15 is spiral, the scraped impurities can be carried to the top of the lower rotating plate 9, so that when the drain pipe 14 is opened, the impurities can be discharged from the drain pipe 14. Then, while separating the upper rotating plate 8 from the filter element 10, the scraper 15 is separated from the push plate 11, so that the operator can clean the impurities on the surface of the filter element 10 after separating the filter element 10 from the lower rotating plate 9.

[0038] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations, additions, subtractions, or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A security filter comprising a cylinder (1), a top cover (2) is arranged on the top of the cylinder (1), a plurality of filter elements (10) are arranged in the interior of the cylinder (1), characterized in that, A limiting ring (7) is provided at the bottom of the inner wall of the cylinder (1). An upper rotating plate (8) and a lower rotating plate (9) are provided at the upper and lower ends of the filter element (10). The lower rotating plate (9) is located above the limiting ring (7). A rotating sealing ring is provided at the outer edge of both the upper rotating plate (8) and the lower rotating plate (9). Multiple push plates (11) are provided circumferentially below the upper rotating plate (8). A water inlet pipe (12) is provided above the side wall of the cylinder (1) and faces the push plate (11). A water outlet pipe (13) is provided at the bottom of the cylinder (1). A sewage pipe (14) is provided above the lower rotating plate (9) on the side wall of the cylinder (1).

2. A security filter according to claim 1, wherein The cylinder (1) has a support seat (3) on its side wall. The support seat (3) has a rotating support arm (4). The end of the rotating support arm (4) away from the support seat (3) is threaded with a threaded rod (5) facing the top cover (2). The top of the threaded rod (5) has a handle (6). The top of the top cover (2) has a bearing seat. The bottom of the threaded rod (5) has a bearing that matches the bearing seat.

3. A security filter according to claim 1, wherein, The upper rotating plate (8) and the lower rotating plate (9) are provided with corresponding mounting holes. The upper and lower ends of the filter element (10) are respectively installed in the corresponding mounting holes. The top of the filter element (10) is provided with a handle (16), and the bottom of the filter element (10) is provided with a water outlet.

4. The security filter of claim 1, wherein, A spiral scraper (15) is provided between the bottom side of the push plate (11) and the top of the lower rotating plate (9), and the side of the scraper (15) abuts against the inner wall of the cylinder (1).

5. The security filter of claim 1, wherein, The side of the cylinder (1) is provided with a viewing window (17), which is made of tempered glass.

6. A security filter according to claim 1, wherein Valves are provided on the inlet pipe (12), outlet pipe (13) and sewage pipe (14).

7. A security filter according to claim 1, wherein The push plate (11) is detachably connected to the scraper (15), and the upper and lower ends of the filter element (10) are detachably connected to the upper rotating plate (8) and the lower rotating plate (9), respectively.

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