Self-cleaning filter with exhaust function

Abstract

The self-cleaning filter with the exhaust function comprises a shell, a filter material is fixedly installed in the shell, a liquid inlet pipe is fixedly communicated with the side wall of one side of the shell, and a liquid outlet pipe is fixedly communicated with the side, away from the liquid inlet pipe, of the shell. The top of the shell is provided with an exhaust assembly used for preventing the internal pressure difference of the shell from being too large, and through cooperative use of the shell and the exhaust assembly, when the internal pressure of the shell is too large, the internal pressure of the shell can be automatically discharged through the exhaust assembly, and the situation that the fluid filtering effect is disturbed by air resistance is avoided; through cooperative use of the fixed shell, the flushing assembly and the power assembly, the flushing assembly can be driven by the power assembly to perform reverse flushing on the filter material, and fine particles such as impurities accumulated on the filter material can be flushed and cleaned, so that the filtering effect of the filter material can be guaranteed, and the filter has a self-cleaning function; the use flexibility of the filter is further improved.

Description

Technical Field

[0001] This utility model relates to the field of fluid filtration technology, specifically a self-cleaning filter with exhaust function. Background Technology

[0002] Security filters, also known as precision filters, are devices used to remove fine particles from fluids. They are mainly used after multi-media pretreatment filtration and before membrane filtration equipment such as reverse osmosis and ultrafiltration to filter out fine substances (such as tiny quartz sand and activated carbon particles) after multi-media filtration, ensuring water filtration accuracy, guaranteeing fluid cleanliness, and ensuring the normal operation of subsequent equipment.

[0003] Existing filters primarily focus on filtration accuracy, throughput, and corrosion resistance in their design, while neglecting the treatment of gases entrained in the fluid. When a filter processes fluids with high gas content, the gas tends to accumulate inside the filter during the filtration process, forming gas clusters or bubbles. The presence of these gases not only occupies the effective filtration area of ​​the filter but also interferes with the normal flow path of the fluid, resulting in a significant reduction in filtration efficiency. Therefore, we need to propose a self-cleaning filter with exhaust function. Utility Model Content

[0004] The purpose of this invention is to provide a self-cleaning filter with exhaust function, which aims to solve the problems mentioned in the background art.

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

[0006] A self-cleaning filter with venting function includes a housing, in which filter media is fixedly installed. An inlet pipe is fixedly connected to one side wall of the housing, and an outlet pipe is fixedly connected to the side of the housing away from the inlet pipe. A venting component for venting excessive internal pressure differential is provided at the top of the housing. A fixing shell is fixedly embedded at the top of the housing, with an open bottom and communicating with the interior of the housing. A flushing component is provided on one side of the filter media, and a power component for moving the flushing component up and down is provided on the fixing shell.

[0007] Preferably, the exhaust assembly includes an exhaust sleeve, the outer wall of which has a plurality of exhaust ports arranged in a ring array, a sealing block is slidably connected inside the exhaust sleeve, a guide rod is fixedly connected to the top of the sealing block, and a return spring is sleeved on the outer wall of the guide rod.

[0008] Preferably, the top end of the return spring is fixedly connected to the inner top of the vent sleeve, and the bottom end of the return spring is fixedly connected to the top of the sealing block.

[0009] Preferably, the top end of the guide rod passes through the air outlet sleeve and is fixedly connected to a limiting block, the guide rod is slidably connected to the air outlet sleeve, and the bottom of the limiting block abuts against the top of the air outlet sleeve.

[0010] Preferably, the flushing assembly includes a fixing plate, which is disposed at the moving end of the power assembly. A flushing pipe is fixedly connected to the bottom of the fixing plate. A telescopic hose is fixedly connected to the outer wall of the flushing pipe. One end of the telescopic hose is fixedly connected to a water inlet pipe. The water inlet pipe is fixedly embedded inside the fixing shell, and one end of the water inlet pipe penetrates through the fixing shell.

[0011] Preferably, the power assembly includes a ball screw, the top end of which is rotatably mounted on the inner top of the fixed housing, the bottom end of which is rotatably mounted on the inner bottom of the housing, the top end of which penetrates the fixed housing and is connected to a drive motor, a drive block is threadedly connected to the outer wall of the ball screw, and one side of the fixed plate is fixedly connected to the drive block.

[0012] Preferably, a sliding rod is fixedly connected to the inner top of the fixed shell, the bottom end of the sliding rod is fixedly connected to the inner bottom of the shell, a slider is slidably sleeved on the outer wall of the sliding rod, and one side of the slider is fixedly connected to one side of the fixed plate.

[0013] Preferably, a drain pipe is fixedly connected to the bottom of the housing, and a valve is provided on the outer wall of the drain pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention, through the combined use of a housing and an exhaust assembly, allows for the automatic release of excessive internal pressure when the pressure inside the housing becomes too high, preventing air resistance from interfering with the fluid filtration effect. Furthermore, by combining a fixed housing, a flushing assembly, and a power assembly, the power assembly drives the flushing assembly to perform reverse flushing of the filter media, effectively cleaning up accumulated impurities and other fine particles. This ensures the filtration effect of the filter media, giving the filter a self-cleaning function and further enhancing the flexibility of filter use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the axial side structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the housing of this utility model;

[0019] Figure 4This is a schematic diagram of the exhaust assembly of this utility model;

[0020] Figure 5 This is a schematic diagram of the flushing assembly and power assembly of this utility model.

[0021] In the diagram: 1. Housing; 2. Filter media; 3. Inlet pipe; 4. Outlet pipe; 5. Exhaust assembly; 501. Exhaust sleeve; 502. Exhaust port; 503. Sealing block; 504. Guide rod; 505. Return spring; 6. Fixed housing; 7. Flushing assembly; 701. Fixed plate; 702. Flushing pipe; 703. Telescopic hose; 704. Water inlet pipe; 8. Power assembly; 801. Ball screw; 802. Drive motor; 803. Drive block; 9. Limit block; 10. Slide rod; 11. Slider; 12. Drain pipe. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 This utility model provides a technical solution:

[0024] A self-cleaning filter with venting function includes a housing 1. A filter media 2 is fixedly installed inside the housing 1. The filter media 2 can be made of wire mesh, non-woven fabric, or fiber media. An inlet pipe 3 is fixedly connected to one side wall of the housing 1, and an outlet pipe 4 is fixedly connected to the side of the housing 1 away from the inlet pipe 3. Fluid enters the interior of the housing 1 through the inlet pipe 3, is filtered by the filter media 2, and the clean fluid is discharged through the outlet pipe 4. A venting assembly 5 is provided on the top of the housing 1 to prevent excessive pressure differential inside the housing 1. By using the housing 1 and the venting assembly 5 together, when the pressure inside the housing 1 is too high, the pressure inside the housing 1 can be automatically released through the venting assembly 5. To avoid air resistance interfering with the fluid filtration effect, a fixed shell 6 is fixedly embedded in the top of the housing 1. The bottom of the fixed shell 6 is open and communicates with the interior of the housing 1. A flushing component 7 is provided on one side of the filter media 2. A power component 8 is provided on the fixed shell 6 for moving the flushing component 7 up and down. By setting the fixed shell 6, the flushing component 7 and the power component 8 in cooperation, the flushing component 7 can be driven by the power component 8 to perform reverse flushing of the filter media 2. This can flush and clean the fine particles such as impurities accumulated on the filter media 2, thereby ensuring the filtration effect of the filter media 2 and enabling the filter to have a self-cleaning function, which is conducive to further improving the flexibility of filter use.

[0025] Specifically, the exhaust assembly 5 includes an exhaust sleeve 501. The bottom of the exhaust sleeve 501 is connected to the inside of the housing 1. Several sets of exhaust ports 502 are arranged in a ring array on the outer wall of the exhaust sleeve 501. A sealing block 503 is slidably connected inside the exhaust sleeve 501. A guide rod 504 is fixedly connected to the top of the sealing block 503. A return spring 505 is sleeved on the outer wall of the guide rod 504. When the internal pressure of the housing 1 is too high, the air pressure can push the sealing block 503 upward along the axial direction of the guide rod 504 until the sealing block 503 passes through several exhaust ports 502. At this time, the gas can be discharged through the exhaust ports 502.

[0026] Furthermore, the top end of the return spring 505 is fixedly connected to the inner top of the air outlet sleeve 501, and the bottom end of the return spring 505 is fixedly connected to the top of the sealing block 503. When the sealing block 503 moves upward, the return spring 505 is in a compressed state. When the air pressure inside the housing 1 is discharged, the return force of the return spring 505 drives the sealing block 503 to return to its original position.

[0027] Furthermore, the top end of the guide rod 504 passes through the vent sleeve 501 and is fixedly connected to the limiting block 9. The guide rod 504 is slidably connected to the vent sleeve 501, and the bottom of the limiting block 9 abuts against the top of the vent sleeve 501. By setting the guide rod 504, the sealing block 503 is limited, making its movement process more stable.

[0028] In this embodiment, the flushing assembly 7 includes a fixing plate 701, which is disposed at the moving end of the power assembly 8. A flushing pipe 702 is fixedly connected to the bottom of the fixing plate 701. A telescopic hose 703 is fixedly connected to the outer wall of the flushing pipe 702. One end of the telescopic hose 703 is fixedly connected to a water inlet pipe 704. The water inlet pipe 704 is fixedly embedded inside the fixing shell 6, and one end of the water inlet pipe 704 penetrates through the fixing shell 6. The water inlet pipe 704 is connected to an external water source in advance, and the external water source is pumped into the telescopic hose 703 by a power device (water pump, not shown in the figure). The filter material 2 can be flushed in reverse through the flushing pipe 702, and the fine particles such as impurities accumulated on the filter material 2 can be flushed and cleaned, thereby ensuring the filtration effect of the filter material 2.

[0029] Specifically, the power assembly 8 includes a ball screw 801. The top end of the ball screw 801 is rotatably mounted on the inner top of the fixed housing 6, and the bottom end of the ball screw 801 is rotatably mounted on the inner bottom of the housing 1. The top end of the ball screw 801 passes through the fixed housing 6 and is connected to a drive motor 802. A drive block 803 is threadedly connected to the outer wall of the ball screw 801. One side of the fixed plate 701 is fixedly connected to the drive block 803. The output shaft of the drive motor 802 can drive the ball screw 801 to rotate in the forward or reverse direction, thereby driving the drive block 803 to reciprocate along the axial direction of the ball screw 801. This can drive the fixed plate 701 and the flushing pipe 702 to move up and down, thereby thoroughly flushing the impurities accumulated on the filter media 2.

[0030] Furthermore, a slide rod 10 is fixedly connected to the inner top of the fixed shell 6, and the bottom end of the slide rod 10 is fixedly connected to the inner bottom of the shell 1. A slider 11 is slidably sleeved on the outer wall of the slide rod, and one side of the slider 11 is fixedly connected to one side of the fixed plate 701. By setting the slide rod 10 and the slider 11 to work together, the fixed plate 701 and the flushing pipe 702 are limited, making them more stable when moving up and down.

[0031] In addition, a drain pipe 12 is fixedly connected to the bottom of the housing 1. A valve is provided on the outer wall of the drain pipe 12. By providing the drain pipe 12, the wastewater used for rinsing the filter material 2 can be discharged easily.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning filter with exhaust function, characterized in that: The device includes a housing (1), in which filter media (2) is fixedly installed. An inlet pipe (3) is fixedly connected to one side wall of the housing (1), and an outlet pipe (4) is fixedly connected to the side of the housing (1) away from the inlet pipe (3). An exhaust assembly (5) for venting excessive pressure difference inside the housing (1) is provided at the top of the housing (1). A fixed shell (6) is fixedly embedded at the top of the housing (1). The bottom of the fixed shell (6) is open and communicates with the inside of the housing (1). A flushing assembly (7) is provided on one side of the filter media (2), and a power assembly (8) for moving the flushing assembly (7) up and down is provided on the fixed shell (6).

2. A self-cleaning filter with exhaust function according to claim 1, characterized in that: The exhaust assembly (5) includes an exhaust sleeve (501), and a plurality of exhaust ports (502) are arranged in a ring array on the outer wall of the exhaust sleeve (501). A sealing block (503) is slidably connected inside the exhaust sleeve (501), and a guide rod (504) is fixedly connected to the top of the sealing block (503). A return spring (505) is sleeved on the outer wall of the guide rod (504).

3. A self-cleaning filter with exhaust function according to claim 2, characterized in that: The top end of the return spring (505) is fixedly connected to the inner top of the vent sleeve (501), and the bottom end of the return spring (505) is fixedly connected to the top of the sealing block (503).

4. A self-cleaning filter with exhaust function according to claim 3, characterized in that: The top end of the guide rod (504) passes through the air outlet sleeve (501) and is fixedly connected to the limiting block (9). The guide rod (504) is slidably connected to the air outlet sleeve (501), and the bottom of the limiting block (9) abuts against the top of the air outlet sleeve (501).

5. A self-cleaning filter with exhaust function according to claim 1, characterized in that: The flushing assembly (7) includes a fixing plate (701), which is disposed at the moving end of the power assembly (8). A flushing pipe (702) is fixedly connected to the bottom of the fixing plate (701). A telescopic hose (703) is fixedly connected to the outer wall of the flushing pipe (702). One end of the telescopic hose (703) is fixedly connected to a water inlet pipe (704). The water inlet pipe (704) is fixedly embedded inside the fixing shell (6), and one end of the water inlet pipe (704) penetrates the fixing shell (6).

6. A self-cleaning filter with exhaust function according to claim 5, characterized in that: The power assembly (8) includes a ball screw (801), the top end of which is rotatably mounted on the inner top of the fixed housing (6), the bottom end of which is rotatably mounted on the inner bottom of the housing (1), the top end of which penetrates the fixed housing (6) and is connected to a drive motor (802), and a drive block (803) is threadedly connected to the outer wall of the ball screw (801), and one side of the fixed plate (701) is fixedly connected to the drive block (803).

7. A self-cleaning filter with exhaust function according to claim 6, characterized in that: A slide rod (10) is fixedly connected to the inner top of the fixed shell (6). The bottom end of the slide rod (10) is fixedly connected to the inner bottom of the shell (1). A slider (11) is slidably sleeved on the outer wall of the slide rod (10). One side of the slider (11) is fixedly connected to one side of the fixed plate (701).

8. A self-cleaning filter with exhaust function according to claim 1, characterized in that: The bottom of the housing (1) is fixedly connected to a drain pipe (12), and a valve is provided on the outer wall of the drain pipe (12).

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