Filter with self-cleaning function

Abstract

The utility model provides a filter with a self-cleaning function, and belongs to the technical field of filters, the filter comprises a shell, the shell is a bent hollow pipe, and the shell comprises two connecting ports. According to the scheme, the filter box, the cleaning part and the dust collecting pipe are arranged, the cleaning part moves relative to the surface of the filter cloth, the cleaning effect on the filter cloth is achieved, the filtering performance of the filter cloth is recovered, impurities scraped off by the cleaning part fall into the dust collecting pipe, and the bottom opening of the filter box is closed along with the cleaning part, so that dust can settle into the dust collecting pipe; therefore, impurities are prevented from continuously floating around the filter cloth, and the filter cloth can be kept clean.

Description

Technical Field

[0001] This application relates to the field of filter technology, and in particular to a filter with a self-cleaning function. Background Technology

[0002] Air filters are devices installed in air handling systems. Their main function is to capture fine particles in the air, such as dust, pollen, and bacteria. They are suitable for places with high air quality requirements, such as medical facilities, laboratories, and cleanrooms.

[0003] Existing air filters typically have filters to separate fine particles. For example, an air filter with self-cleaning function, with announcement number CN221256978U, can achieve good filtration results through a first filter and a second filter.

[0004] However, when using this device, the effect of cleaning the first or second filter screen by backflushing is not good, and the impurities that are cleaned off cannot be collected well, which affects the use of the air handling system.

[0005] Therefore, we propose a filter with a self-cleaning function. Utility Model Content

[0006] In view of this, the purpose of this application is to provide a filter with a self-cleaning function to improve the cleaning effect of the filter screen.

[0007] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0008] A filter with a self-cleaning function includes a housing, the housing being a curved hollow tube, the housing including two connection ports;

[0009] An air intake pipe is connected to one of the connection ports of the housing;

[0010] A dust collection pipe, which is connected to another connection port of the housing;

[0011] A filter box, which is connected above the connection between the dust collection pipe and the housing;

[0012] Filter cloth, which is fixed to the side of the filter box facing the inner ring of the housing;

[0013] Guide post, the guide post being fixed to the top of the inside of the filter box;

[0014] A cleaning component, which is slidably disposed on the outside of the guide post.

[0015] Preferably, the bending angle of the housing is 180°, the air inlet pipe is tangent to the inner ring of the housing, and the dust collection pipe is tangent to the outer ring of the housing;

[0016] The air intake pipe and the dust collection pipe are arranged parallel to each other.

[0017] Preferably, the angle between the filter box and the dust collection pipe is 90°, and a baffle is hinged to the side of the filter box facing the inner ring of the housing, and the hinge axis of the baffle and the filter box coincides with the center of the inner ring of the housing.

[0018] Preferably, the cleaning component is a brush, and a linear bearing is provided at the connection between the cleaning component and the guide post.

[0019] Preferably, the outer wall of the cleaning component is fitted to the outer wall of the filter box.

[0020] Preferably, the rear end of the housing is connected to an air outlet pipe, and a fan is installed inside the air outlet pipe.

[0021] Preferably, a stopcock is provided at the bottom of the dust collection pipe.

[0022] Compared with the prior art, this application has at least the following advantages:

[0023] In the above solution, by setting up a filter box, a cleaning component, and a dust collection pipe, the cleaning component moves relative to the surface of the filter cloth to achieve the cleaning effect of the filter cloth, restore the filtration performance of the filter cloth, and the impurities scraped off by the cleaning component fall into the dust collection pipe. As the cleaning component closes the bottom opening of the filter box, the dust can settle into the dust collection pipe, thereby preventing impurities from continuing to float around the filter cloth and keeping the filter cloth clean.

[0024] In the above scheme, by setting up a shell, an air inlet pipe and a dust collection pipe, the airflow and centrifugal force are used to enable the dust-laden gas to be automatically separated after entering the shell. After the air enters the inner cavity of the shell, it is guided by the curved wall and rotates. The impurities in the air flow along the inner wall of the outer ring of the shell under the action of centrifugal force, so that relatively clean gas is obtained on the inner wall of the inner ring of the shell, thereby extending the service life of the filter cloth.

[0025] In the above solution, by setting up a filter box and a baffle, when the airflow inside the housing weakens, the cleaning component cleans the filter cloth by moving downwards. The baffle swings downwards due to its own gravity until it adheres to the surface of the filter cloth. The baffle reduces the number of impurities that pass through the filter cloth during the cleaning process. At the same time, the baffle supports the filter cloth and keeps it straight, so that the cleaning component can make good contact with the filter cloth and achieve a good cleaning effect. Attached Figure Description

[0026] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0027] Figure 1 This is a schematic diagram of the overall structure in this application;

[0028] Figure 2 This is a schematic diagram of the cross-sectional structure of the shell in this application;

[0029] Figure 3 This is a schematic diagram of the filter box structure in this application;

[0030] Figure 4 This is a schematic diagram of the cleaning component structure in this application;

[0031] Figure 5 This is a schematic diagram of the fan structure in this application.

[0032] [Figure Labels]

[0033] 1. Housing 1, Air outlet pipe 101, Fan 102, Air inlet pipe 2, Dust collection pipe 3, Plug 301, Filter box 4, Baffle 401, Filter cloth 5, Guide column 6, Cleaning component 7, Linear bearing 701. Detailed Implementation

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 4 The filter shown in this application has a self-cleaning function and includes a housing 1, which is a curved hollow tube and has two connection ports.

[0035] Air intake pipe 2, which is connected to one of the connection ports of housing 1;

[0036] Dust collection pipe 3 is connected to another connection port of housing 1;

[0037] Filter box 4 is connected above the connection between dust collection pipe 3 and housing 1;

[0038] Filter cloth 5 is fixed to the side of the filter box 4 facing the inner ring of the housing 1;

[0039] Guide column 6, the guide column 6 is fixed to the top of the inside of the filter box 4;

[0040] Cleaning component 7 is slidably mounted on the outside of guide post 6;

[0041] During installation, the housing 1 is installed in the piping of the air handling system, and the end outlet of the housing 1 is installed in the air intake piping of the external air handling system, or the air intake pipe 2 is installed in the air outlet piping of the external air handling system.

[0042] Using the working pressure of the external air handling system, air is driven into the housing 1 through the intake pipe 2. After entering the inner cavity of the housing 1, the air is rotated by the guiding effect of its curved wall. Impurities in the air flow along the inner wall of the outer ring of the housing 1 under the action of centrifugal force, thereby obtaining relatively clean gas in the inner wall of the inner ring of the housing 1.

[0043] Impurities flowing along the inner wall of the outer ring of the housing 1 have inertia and are collected by the dust collection pipe 3. The gas in the inner ring of the housing 1 continues to flow into the filter box 4. The airflow lifts the cleaning component 7 to the top of the filter box 4, so that the air can be filtered by the filter cloth 5 to separate the impurities and obtain cleaner air.

[0044] After the device has been working for a period of time, when the filter cloth 5 is heavily contaminated by impurities, the cleaning component 7 is lowered under its own gravity by adjusting the flow rate of the external airflow. The cleaning component 7 cleans the surface of the filter cloth 5, thereby restoring the filtration performance of the filter cloth 5.

[0045] The impurities scraped off by the cleaning component 7 fall into the dust collection pipe 3, and the cleaning component 7 seals the bottom opening of the filter box 4, allowing the dust to settle into the dust collection pipe 3, thereby preventing the impurities from continuing to float around the filter cloth 5. Subsequently, the external airflow speed can be restored, allowing the entire device to continue to work.

[0046] In this embodiment, as Figures 2-5 As shown, the bending angle of the housing 1 is 180°, the air inlet pipe 2 is tangent to the inner ring of the housing 1, and the dust collection pipe 3 is tangent to the outer ring of the housing 1.

[0047] The air intake pipe 2 and the dust collection pipe 3 are arranged parallel to each other;

[0048] The gas entering the housing 1 through the intake pipe 2 has a certain flow velocity, so the dust it carries also has inertia. After the gas carries the dust into the housing, the airflow flows along the inner cavity of the housing 1. Under the action of its own inertia, the dust first hits the inner wall of the outer ring of the housing 1, and then the dust flows along the inner wall of the outer ring of the housing 1 with the airflow. A good separation effect is obtained through centrifugal force.

[0049] Dust, under its own gravity and the blowing of the airflow, flows along the inner wall of the outer ring of the shell 1 and then enters the dust collection pipe 3. The dust collection pipe 3 is a closed structure, so the airflow can continue to flow to the filter box 4, thereby achieving a good dust collection effect.

[0050] The included angle between the filter box 4 and the dust collection pipe 3 is 90°. A baffle 401 is hinged to the side of the filter box 4 facing the inner ring of the housing 1. The hinge axis of the baffle 401 and the filter box 4 coincides with the center of the inner ring of the housing 1.

[0051] The angle between the filter box 4 and the dust collection pipe 3 is 90 degrees, which can effectively separate particulate matter and airflow. When the particulate matter flowing along the inner wall of the outer ring of the shell 1 is subjected to inertia and its own gravity, the particulate matter moves obliquely upward along the bottom edge of the shell 1 in a parabolic motion, and it is caught by the opening of the dust collection pipe 3. The airflow is unaffected and can continue to flow to the filter cloth 5.

[0052] By setting baffle 401, under the action of airflow inside housing 1, baffle 401 swings away from the filter cloth 5, so that the filtered air can be discharged from the end of housing 1.

[0053] When the airflow inside the housing 1 decreases, the cleaning component 7 cleans the filter cloth 5 by moving downwards. The baffle 401 swings downwards due to its own gravity until it adheres to the surface of the filter cloth 5. The baffle 401 reduces the number of impurities that pass through the filter cloth 5 during the cleaning process. At the same time, the baffle 401 supports the filter cloth 5 and keeps it straight, so that the cleaning component 7 can make good contact with the filter cloth 5 and achieve a good cleaning effect.

[0054] The cleaning component 7 is a brush, and a linear bearing 701 is provided at the connection between the cleaning component 7 and the guide post 6.

[0055] The brush 7 has fine and soft bristles and a large surface area, which can scrape off the impurities on the contaminated parts by rubbing the filter cloth 5, thus achieving a good cleaning effect.

[0056] The outer wall of the cleaning component 7 is fitted to the outer wall of the filter box 4;

[0057] The cleaning component 7 is guided and limited by the filter box 4, so that the cleaning component 7 fits the surface of the filter cloth 5, while preventing the cleaning component 7 from squeezing the filter cloth 5 and causing damage. Furthermore, the cleaning component 7 can seal the bottom opening of the filter box 4 to prevent floating particles from falling back onto the filter cloth 5.

[0058] The rear end of the housing 1 is connected to an air outlet pipe 101, and a fan 102 is installed inside the air outlet pipe 101.

[0059] External pipes can be connected to both the front and rear sides of the inner ring of the housing 1. By setting the air outlet pipe 101 and the fan 102, it is beneficial to create a negative pressure environment inside the housing 1, which can generate and guide airflow.

[0060] A stopcock 301 is provided at the bottom of the dust collection pipe 3;

[0061] The plug 201 facilitates the discharge of impurities from the dust collection pipe 3.

Claims

1. A filter with a self-cleaning function, characterized in that, Includes a housing (1), which is a curved hollow tube, and the housing (1) includes two connection ports; An air intake pipe (2) is connected to one of the connection ports of the housing (1); Dust collection pipe (3), which is connected to another connection port of housing (1); The filter box (4) is connected above the connection between the dust collection pipe (3) and the housing (1); Filter cloth (5), the filter cloth (5) is fixed to the side of the filter box (4) facing the inner ring of the housing (1); Guide post (6), the guide post (6) is fixed to the top of the inside of the filter box (4); Cleaning component (7) is slidably disposed on the outside of guide post (6).

2. The filter with self-cleaning function according to claim 1, characterized in that: The bending angle of the housing (1) is 180°, the air inlet pipe (2) is tangent to the inner ring of the housing (1), and the dust collection pipe (3) is tangent to the outer ring of the housing (1). The air intake pipe (2) and the dust collection pipe (3) are arranged parallel to each other.

3. The filter with self-cleaning function according to claim 1, characterized in that: The included angle between the filter box (4) and the dust collection pipe (3) is 90°. A baffle (401) is hinged to the side of the filter box (4) facing the inner circle of the housing (1). The hinge axis of the baffle (401) and the filter box (4) coincides with the center of the inner circle of the housing (1).

4. The filter with self-cleaning function according to claim 1, characterized in that: The cleaning component (7) is a brush, and a linear bearing (701) is provided at the connection between the cleaning component (7) and the guide post (6).

5. The filter with self-cleaning function according to claim 1, characterized in that: The outer wall of the cleaning component (7) is fitted to the outer wall of the filter box (4).

6. The filter with self-cleaning function according to claim 1, characterized in that: The rear end of the housing (1) is connected to an air outlet pipe (101), and a fan (102) is installed inside the air outlet pipe (101).

7. The filter with self-cleaning function according to claim 1, characterized in that: A stopcock (301) is provided at the bottom of the dust collection pipe (3).

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