A basket strainer with replaceable screen

Abstract

The utility model relates to filter technical field, and disclose a kind of replaceable filter screen's basket type pipeline water outlet filter, the filter screen renewal difficult complicated, the filter cartridge cannot continue to use when replacing the shortcoming of existing technology is solved.The replaceable filter screen's basket type pipeline water outlet filter, including pipeline main body: the outside of pipeline main body is connected with pressing block, the lower portion of pipeline main body is connected with filter cartridge, the bottom of filter cartridge is connected with bottom cover, the upper portion of filter cartridge is connected with sealing ring, the inside of filter cartridge is provided with filter screen mechanism, the outside of filter cartridge is connected with snap ring, the inside of snap ring is also connected with reset spring, by being provided with double filter screen structure to make that filter screen is replaced and does not stop working, and hang in the bottom of pipeline main body to avoid the influence of outflow of blockage, and press rotating can remove the disassembly of filter cartridge, and it is convenient to replace overhaul.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a basket-type pipe outlet filter with replaceable filter screen. Background Technology

[0002] A straight-through basket filter typically includes a housing, an inlet, an outlet, and a basket filter cartridge, with the inlet and outlet on the same axis. In existing straight-through basket filters, the bottom of the housing is flat, and the bottom of the filter cartridge is parallel to the central axis of the inlet and outlet. The liquid to be filtered flows into the housing through the inlet and into the filter cartridge. After being filtered, it flows into the space between the outer wall of the filter cartridge and the inner wall of the housing, and then flows out through the outlet. This type of straight-through basket filter has a simple structure, but the filter cartridge occupies a large space in the housing, while the space between the outer wall of the filter cartridge and the inner wall of the housing is small. This results in high fluid resistance through the filter, leading to low filtration efficiency.

[0003] The "straight-through inclined basket filter" disclosed in the prior art publication number "CN103801133A" can significantly reduce the fluid resistance flowing through the filter and improve the filtration efficiency by increasing the space between the outer wall of the filter cartridge and the inner wall of the housing and guiding the liquid after filtration through the filter cartridge to the outlet side.

[0004] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist:

[0005] In existing pipeline filters, although traditional basket filters have a filter cartridge structure, the filter screen and the isolation plate are often designed as a whole. When cleaning, the pipeline needs to be shut down and the entire filter cartridge needs to be disassembled, which is cumbersome and time-consuming. In addition, the inlet and outlet are connected to the pipeline, and long-term operation will increase the system pressure drop and even block the pipeline. Utility Model Content

[0006] The technical problem to be solved by this utility model is that the existing technology has the disadvantages of difficult and cumbersome filter screen replacement and the filter cartridge cannot be used again when it is replaced. To this end, we propose a basket-type pipeline outlet filter with replaceable filter screen.

[0007] To achieve the above objectives, this application adopts the following technical solution: a basket-type pipe outlet filter with replaceable filter screen, comprising a pipe body: a pressing block is connected to the outer side of the pipe body, a filter cylinder is connected to the lower part of the pipe body, a bottom cover is connected to the bottom of the filter cylinder, a sealing ring is connected to the upper part of the filter cylinder, a filter screen mechanism is provided inside the filter cylinder, a retaining ring is connected to the outer side of the filter cylinder, and a return spring is also connected to the inner side of the retaining ring.

[0008] Preferably, the inside of the pipe body is provided with an "L" shaped groove, and pressing blocks are symmetrically distributed on both sides of the pipe body. Rubber is provided at the connection between the pressing block and the pipe body, and the pressing block is used to quickly press the retaining ring for easy disassembly.

[0009] Preferably, the filter mechanism includes a movable plate, a rubber sheet, a rotating rod, a partition, and a filter screen. The movable plate is located inside the filter cartridge and can change the direction of the outflowing water to facilitate subsequent filtration.

[0010] Preferably, rotating rods are symmetrically distributed on the front and rear sides of the movable plate, and the rotating rods are connected to the filter cartridge by a rotatable connection. Arc-shaped rubber sheets are also connected to the upper and lower sides of the movable plate to ensure the sealing of the movable plate and prevent water leakage.

[0011] Preferably, the baffle is located at the bottom center of the filter cartridge, and filter screens are symmetrically distributed on both sides of the baffle. The filter screens have a basket-type structure, and the filter screens are connected to the filter cartridge by magnetic attraction. The filter screens and the filter cartridge work together to achieve water filtration.

[0012] Preferably, the bottom cover and the filter cartridge are connected by a threaded connection. The bottom cover has a hollow center and the inner edge of the bottom cover is the same size as the inner edge of the filter screen. The bottom cover supports the filter screen and prevents it from falling off.

[0013] Preferably, the retaining ring is located on both sides of the center of the filter cartridge, and the retaining ring is slidably connected to the retaining groove below the pipe body. The retaining ring and the filter cartridge form a spring reset structure through a reset spring. The retaining ring is pressed by the reset spring, so that the retaining ring is locked at the pressing block.

[0014] Preferably, the sealing ring is located at the top of the filter cartridge, the sealing ring is made of rubber, and the diameter of the sealing ring is larger than the gap between the filter cartridge and the pipe body. The sealing ring enhances the sealing effect and prevents leakage.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] In this utility model, the filter cartridge can be quickly disassembled to prevent blockage of the water outlet pipe: the filter cartridge is equipped with a suspension structure at the bottom of the water outlet pipe, so that the filter cartridge is located at the bottom of the water outlet pipe, which allows for quick disassembly and maintenance when the filter cartridge is blocked. In addition, the filter cartridge is equipped with a pressing block and a retaining ring to achieve double locking and fixing with a spring, which ensures that the fixing is firm and the disassembly and maintenance are convenient.

[0017] This utility model features a dual-filter structure, allowing for continuous operation during filter replacement and maintenance: a movable plate is installed above the filter screen, which can be moved during filter removal to direct water flow to the other side, ensuring continuous operation of the outlet pipe during filter replacement and enabling uninterrupted replacement. Furthermore, the filter screen requiring maintenance automatically descends after the bottom cover is unscrewed, improving disassembly efficiency. Attached Figure Description

[0018] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the filter mechanism of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the filter screen of this utility model;

[0022] Figure 4 This is a bottom view of the filter cartridge structure of this utility model.

[0023] Legend: 1. Pipe body; 2. Filter screen mechanism; 201. Movable plate; 202. Rubber sheet; 203. Rotating rod; 204. Partition plate; 205. Filter screen; 3. Bottom cover; 4. Filter cylinder; 5. Snap ring; 6. Return spring; 7. Sealing ring; 8. Pressing block. Detailed Implementation

[0024] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0025] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides a technical solution: a basket-type pipe outlet filter with replaceable filter screen, including a pipe body 1; a pressing block 8 is connected to the outside of the pipe body 1; a filter cylinder 4 is connected to the bottom of the pipe body 1; a bottom cover 3 is connected to the bottom of the filter cylinder 4; a sealing ring 7 is connected to the top of the filter cylinder 4; a filter screen mechanism 2 is provided inside the filter cylinder 4; a retaining ring 5 is connected to the outside of the filter cylinder 4; and a return spring 6 is also connected to the inside of the retaining ring 5.

[0026] Reference Figure 1 , Figure 2 and Figure 4 As shown in this embodiment: the inside of the pipe body 1 is provided with an "L" shaped groove, and pressing blocks 8 are symmetrically distributed on both sides of the pipe body 1. Rubber is provided at the connection between the pressing block 8 and the pipe body 1. The retaining ring 5 can be quickly pressed by pressing the pressing block 8, which facilitates disassembly.

[0027] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in this embodiment: the filter mechanism 2 includes a movable plate 201, a rubber sheet 202, a rotating rod 203, a partition 204, and a filter screen 205. The movable plate 201 is located inside the filter cartridge 4. The movable plate 201 changes the direction of the outflow water to facilitate subsequent filtration. The rotating rod 203 is symmetrically distributed on the front and rear sides of the movable plate 201. The rotating rod 203 is connected to the filter cartridge 4 by a rotating connection. The upper and lower sides of the movable plate 201 are also connected to the arc-shaped rubber sheet 202. The rubber sheet 202 ensures the sealing of the movable plate 201 and prevents water leakage. The partition 204 is located at the center bottom of the filter cartridge 4. The filter screen 205 is symmetrically distributed on both sides of the partition 204. The filter screen 205 has a basket-type structure. The filter screen 205 is connected to the filter cartridge 4 by a magnetic connection. The filter screen 205 and the filter cartridge 4 work together to achieve water filtration.

[0028] Reference Figure 1 and Figure 4 As shown in this embodiment: the bottom cover 3 and the filter cylinder 4 are connected by a threaded connection. The bottom cover 3 has a hollow center. The inner edge of the bottom cover 3 is the same size as the inner edge of the filter screen 205. The bottom cover 3 supports the filter screen 205 to prevent it from falling off. The retaining ring 5 is located on both sides of the center of the filter cylinder 4. The retaining ring 5 and the retaining groove below the pipe body 1 are in a sliding connection structure. The retaining ring 5 and the filter cylinder 4 form a spring reset structure through the return spring 6. The return spring 6 squeezes the retaining ring 5 so that the retaining ring 5 is locked at the pressing block 8.

[0029] Reference Figure 1 and Figure 4 As shown in this embodiment: the sealing ring 7 is located at the top of the filter cartridge 4. The sealing ring 7 is made of rubber. The diameter of the sealing ring 7 is larger than the gap between the filter cartridge 4 and the pipe body 1. The sealing effect is enhanced by the sealing ring 7 to prevent leakage.

[0030] Working principle: First, when using, align the retaining ring 5 with the L-groove below the main body of the pipe 1 and push the filter cylinder 4 so that the retaining ring 5 slides inside the L-groove until it reaches the corner and can no longer push the filter cylinder 4. Then rotate the filter cylinder 4 so that the retaining ring 5 begins to move vertically in the groove. When the retaining ring 5 reaches the pressing block 8, because the pressing block 8 is provided with a groove, the return spring 6 drives the retaining ring 5 to lock into the groove, thus completing the fixing of the filter cylinder 4. When disassembling, squeeze the pressing blocks 8 on both sides so that the retaining ring 5 fits against the surface of the filter cylinder 4. After rotating in the opposite direction at a certain angle, pull the filter cylinder 4 to complete the disassembly.

[0031] As described above, during use, the movable plate 201 rotates via the rotating rod 203, and the rubber sheet 202 on one side adheres to one side of the filter cylinder 4, serving a similar purpose as a guide plate to reduce water resistance and guide water flow. The water flows towards the filter screen 205 on one side. After long-term use, if it is necessary to clean the filter screen 205, unscrew the bottom cover 3. At this time, the filter screen 205 that needs to be cleaned will automatically fall down due to the accumulation of a large amount of impurities inside, the weight of which is greater than the magnetic attraction force. After falling, the operator can reach into the filter cylinder 4, move the movable plate 201 to the other side, replace the filter screen 205, and then close the bottom cover 3 again.

[0032] It is important to note that the retaining ring 5 is made of a flexible material; otherwise, it would not be able to slide inside the groove below the main pipe body 1. Spring steel could be used instead.

[0033] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A basket-type pipe outlet filter with replaceable filter screen, characterized in that, The system includes a main pipe body, a pressing block connected to the outside of the main pipe body, a filter cylinder connected to the bottom of the main pipe body, a bottom cover connected to the bottom of the filter cylinder, a sealing ring connected to the top of the filter cylinder, a filter screen mechanism provided inside the filter cylinder, a retaining ring connected to the outside of the filter cylinder, and a return spring connected to the inside of the retaining ring.

2. The basket-type pipe outlet filter with replaceable filter screen according to claim 1, characterized in that: The inside of the pipe body is provided with an "L" shaped groove, and pressing blocks are symmetrically distributed on both sides of the pipe body. Rubber is provided at the connection between the pressing blocks and the pipe body.

3. A basket-type pipe outlet filter with replaceable filter screen according to claim 1, characterized in that: The filter mechanism includes a movable plate, a rubber sheet, a rotating rod, a partition, and a filter screen, with the movable plate located inside the filter cartridge.

4. A basket-type pipe outlet filter with replaceable filter screen according to claim 3, characterized in that: Rotating rods are symmetrically distributed on the front and rear sides of the movable plate. The rotating rods are connected to the filter cartridge by a rotatable connection. Arc-shaped rubber sheets are also connected to the upper and lower sides of the movable plate.

5. A basket-type pipe outlet filter with replaceable filter screen according to claim 4, characterized in that: The baffle is located at the bottom center of the filter cartridge, and filter screens are symmetrically distributed on both sides of the baffle. The filter screens have a basket-like structure, and the filter screens are connected to the filter cartridge by magnetic attraction.

6. A basket-type pipe outlet filter with replaceable filter screen according to claim 5, characterized in that: The bottom cover is connected to the filter cartridge by a threaded connection. The bottom cover has a hollow center, and the inner edge of the bottom cover is the same size as the inner edge of the filter screen.

7. A basket-type pipe outlet filter with replaceable filter screen according to claim 1, characterized in that: The retaining rings are located on both sides of the center of the filter cartridge. The retaining rings are slidably connected to the retaining grooves below the main body of the pipe. The retaining rings and the filter cartridge form a spring return structure through a return spring.

8. A basket-type pipe outlet filter with replaceable filter screen according to claim 1, characterized in that: The sealing ring is located at the top of the filter cartridge. The sealing ring is made of rubber and its diameter is larger than the gap between the filter cartridge and the main body of the pipe.

Images