CN204952410U - Leading filter and cleaning device with self -cleaning function - Google Patents

Abstract

The utility model relates to the field of water purification equipment, and discloses a pre-filter with self-cleaning function and a cleaning device thereof. The pre-filter with self-cleaning function includes a shell and a filter screen (10 ), also includes cleaning device, and cleaning device comprises motor (2), rotating shaft (11) and the bristle (13) that is fixed on the rotating shaft (11), and rotating shaft (11) stretches in the filter screen (10), and motor (2) The rotating shaft (11) is driven to rotate, and the bristle (13) rotates with the rotating shaft (11) to clean the inner wall of the filter screen (10). The utility model uses a cleaning device to clean the inside of the filter screen, completely solves the problem that the filter screen of the pre-filter is not easy to clean, reduces the cleaning and maintenance cost of the filter itself, prevents the surface of the filter screen from being easily blocked, and maximizes It fully protects the filter element of the water purifier, greatly prolongs the service life of the filter element of the water purifier, and brings tangible benefits to consumers.

Description

Pre-filter with self-cleaning function and its cleaning device

technical field

The utility model relates to the field of water purification equipment, in particular to a pre-filter with self-cleaning function.

Background technique

In the existing household water purification industry, the most commonly used products in our daily life are reverse osmosis water purifiers and ultrafiltration water purifiers, but water purification products have certain requirements for water sources, such as municipal tap water, The water pressure requirement is 0.1 to 0.4MPa, which is not a problem for cities and developed counties and towns. However, for the vast rural areas of China, the water quality in many places is very poor, and some even have no tap water. It's all underground well water, very turbid, and they are the ones who need water purification products the most. Due to the poor water quality in rural areas, the filter elements of our commonly used water purifiers are quickly blocked after installation and use, and the filter elements must be replaced, that is, the service life of the filter elements is very short. Even if the water purifier is equipped with a pre-filter, the pre-filter will soon be blocked by impurities such as sediment and needs to be cleaned frequently, and the cleaning of the pre-filter is difficult for most consumers. Complete, so ordinary water purification products are not suitable for practical use in rural areas.

Contents of the invention

Aiming at the disadvantage that the water purifier in the prior art is not suitable for use in rural areas, the utility model provides a pre-filter with self-cleaning function.

In order to solve the above technical problems, the utility model is solved through the following technical solutions:

The pre-filter with self-cleaning function includes a shell, a filter screen installed in the shell, and a cleaning device. The cleaning device includes a motor, a rotating shaft and bristles fixed on the rotating shaft. The rotating shaft extends into the filter screen and is driven by the motor. The rotating shaft rotates, and the bristles rotate with the rotating shaft to clean the inner wall of the filter screen.

Preferably, the cleaning device further includes a coupling, and the motor shaft of the motor is connected to the rotating shaft through the coupling.

Preferably, a sewage outlet is provided at the bottom of the housing, and the sewage outlet communicates with the inside of the filter screen. When the sewage outlet is opened, the water inside the filter screen flows out from the sewage outlet.

Preferably, the sewage outlet is also connected with a first electromagnetic valve. The first electromagnetic valve is opened, and the sewage is discharged from the sewage outlet.

Preferably, the casing is provided with a water inlet and a water outlet, the water inlet is connected to the inside of the filter screen, the water outlet is connected to the periphery of the filter screen, and the water outlet is also connected to a second solenoid valve.

Preferably, the housing includes an upper cover and a main body, the main body has a three-way structure, the left and right ends of the main body are respectively a water inlet and a water outlet, the sewage outlet is located at the lower part of the main body, and the lower end of the upper cover is connected to the main body through threads.

Preferably, the motor is located inside the upper cover, a waterproof support sheet is provided between the upper cover and the main body, and the motor shaft of the motor passes through the waterproof support sheet. The waterproof supporting sheet is a plastic sheet, a sealing ring is arranged between the side wall of the plastic sheet and the shell, the motor shaft passes through the plastic sheet, the waterproof supporting sheet plays a role of supporting the motor, and can prevent water from contacting the motor at the same time.

The cleaning device of the pre-filter comprises a motor, a rotating shaft and bristles fixed on the rotating shaft, and the motor drives the rotating shaft to rotate.

Preferably, a shaft coupling is also included, and the motor shaft of the motor drives the rotating shaft to rotate through the shaft coupling.

Compared with the prior art, the utility model has obvious advantages: the utility model uses a cleaning device to clean the inside of the filter screen, completely solves the problem that the filter screen of the pre-filter is not easy to clean, and reduces the cleaning and maintenance of the filter itself Low cost, so that the surface of the filter screen will not be easily blocked, protect the filter element of the water purifier to the greatest extent, greatly prolong the service life of the filter element of the water purifier, and bring tangible benefits to consumers.

Description of drawings

Fig. 1 is the structural representation of embodiment 1.

FIG. 2 is a schematic diagram of the water flow of normal water outlet in Example 1. FIG.

Fig. 3 is a schematic diagram of the flow of water flowing out of the sewage outlet in Example 1.

The names of the parts indicated by the numbers in the attached drawings are as follows: 1—top cover, 2—motor, 3—waterproof support piece, 5—coupling, 6—water outlet, 7—water inlet, 9—filter screen support Frame, 10—filter screen, 11—rotating shaft, 12—main body, 13—bristle, 14—drain outlet, 15—the first solenoid valve, 16—the second solenoid valve.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

Example 1

The pre-filter with self-cleaning function, as shown in Figure 1, includes a housing, a filter screen support frame 9 installed in the housing, the inside of the filter screen support frame 9 is provided with a filter screen 10, and also includes a cleaning device, a cleaning device It includes a motor 2 , a rotating shaft 11 , a coupling 5 and bristles 13 fixed on the rotating shaft 11 , and the rotating shaft 11 extends into the filter screen 10 . The motor shaft of the motor 2 is connected with the rotating shaft 11 through the shaft coupling 5, the motor 2 drives the rotating shaft 11 to rotate, and the bristles 13 rotate with the rotating shaft 11 to clean the inner wall of the filter screen 10.

The housing includes an upper cover 1 and a main body 12, the main body 12 is a three-way structure, the sewage outlet 14 is located at the lower part of the main body 12, and the lower end of the upper cover 1 is connected to the main body 12 through threads. The casing is provided with a water inlet 7 and a water outlet 6 , the water inlet 7 is connected to the inside of the filter screen 10 , the water outlet 6 is connected to the periphery of the filter screen 10 , and the water outlet 6 is also connected to a second solenoid valve 16 . The motor 2 is located inside the upper cover 1 , and a waterproof support sheet 3 is provided between the upper cover 1 and the main body 12 , and the motor shaft of the motor 2 passes through the waterproof support sheet 3 .

When the first solenoid valve 15 is closed and the second solenoid valve 16 is opened, the water flows out from the water outlet 6 through the filter screen, as shown in FIG. 2 .

A sewage outlet 14 is provided at the bottom of the housing, and the sewage outlet 14 communicates with the inside of the filter screen 10 , and the sewage outlet 14 is also connected with a first solenoid valve 15 . When the second solenoid valve 16 is closed and the first solenoid valve 15 is opened, the water inside the filter screen 10 flows out from the sewage outlet 14, as shown in FIG. 3 .

In a word, the above descriptions are only preferred embodiments of the present utility model, and all equal changes and modifications made according to the patent scope of the utility model should fall within the scope of the utility model patent.

Claims (7)

1. A pre-filter with self-cleaning function, comprising a housing, a filter screen (10) installed in the housing, characterized in that it also includes a cleaning device, which includes a motor (2), a rotating shaft (11) and a fixed The bristle (13) on the rotating shaft (11), the rotating shaft (11) stretches in the filter screen (10), the motor (2) drives the rotating shaft (11) to rotate, and the brush hair (13) rotates with the rotating shaft (11) to clean the filter screen ( 10) Inner wall, the cleaning device also includes a coupling (5), and the motor shaft of the motor (2) drives the rotating shaft (11) to rotate through the coupling (5). 2. The pre-filter with self-cleaning function according to claim 1, characterized in that: the bottom of the housing is provided with a sewage outlet (14), and the sewage outlet (14) communicates with the filter screen (10) inside, and the sewage outlet is opened Port (14), the water in the filter screen (10) flows out from the sewage outlet (14). 3. The pre-filter with self-cleaning function according to claim 1, characterized in that: the housing is provided with a water inlet (7) and a water outlet (6), and the water inlet (7) is connected to the filter screen (10) Inside, the water outlet (6) communicates with the periphery of the filter screen (10), and the water outlet (6) is also connected with a second electromagnetic valve (16). 4. The pre-filter with self-cleaning function according to claim 1, characterized in that: the housing includes an upper cover (1) and a main body (12), the main body (12) is a three-way structure, and the sewage outlet (14 ) is located at the bottom of the main body (12), and the lower end of the loam cake (1) is connected with the main body (12) by threads. 5. The pre-filter with self-cleaning function according to claim 4, characterized in that: the motor (2) is located inside the upper cover (1), and a waterproof filter is provided between the upper cover (1) and the main body (12). The support sheet (3), the motor shaft of the motor (2) passes through the waterproof support sheet (3). 6. The cleaning device of the pre-filter is characterized in that: it comprises a motor (2), a rotating shaft (11) and a bristle (13) fixed on the rotating shaft (11), and the motor (2) drives the rotating shaft (11) to rotate. 7. The cleaning device of the pre-filter according to claim 6, characterized in that: it also includes a coupling (5), and the motor shaft of the motor (2) drives the rotating shaft (11) to rotate through the coupling (5) .