Drainage filtering pipeline

Abstract

The utility model relates to the technical field of drainage engineering, and provides a drainage filtering pipeline which comprises a pipeline main body and a filtering device communicated with the pipeline main body, the filtering device comprises a filtering body, and the filtering body is communicated with the pipeline main body through a water inlet and a water outlet. A sewage discharging cavity is detachably fixed to the bottom of the filtering body, the interior of the filtering body is divided into a filtering cavity and a water outlet cavity through a vertically-arranged filtering net, the water inlet is communicated with the filtering cavity, the water outlet is communicated with the water outlet cavity, and a cleaning device is arranged in the filtering cavity and comprises a cleaning brush attached to the surface of the filtering net. A connecting rod is arranged between the cleaning brush and the pollution discharge cavity, one end of the connecting rod is clamped with the cleaning brush, and the other end of the connecting rod is universally connected with the pollution discharge cavity. The utility model has the beneficial effects that the filter screen can be synchronously cleaned by using the cleaning brush while the sewage discharge cavity is cleaned, and the filter screen does not need to be cleaned independently, so that the filtering efficiency is improved, and the maintenance cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage engineering, and in particular to a drainage filtering pipeline. Background Art

[0002] Generally, pipes with filtering functions are connected to filters on the pipeline. The filter is generally composed of a stainless steel filter screen, a sewage discharge part, a transmission device, and an electrical control part. During operation, the water to be filtered enters from the water inlet, flows through the filter screen, and enters the user's required pipeline through the outlet for process circulation. The particulate impurities in the water are trapped inside the filter screen. In this continuous cycle, more and more particles are trapped, and the filtration speed becomes slower and slower. However, the imported sewage continues to enter continuously, and the filter holes will become smaller and smaller, thus generating a pressure difference between the inlet and outlet. When the pressure difference reaches the set value, the differential pressure transmitter transmits an electrical signal to the controller, which controls the start of the drive motor to drive the shaft to rotate through the transmission component. At the same time, the sewage outlet opens and is discharged from the sewage outlet. When the filter screen is cleaned, the pressure difference drops to the minimum value, and the system returns to the initial filtering state and the system operates normally.

[0003] However, in the existing filter pipe, after the dirt at the sewage outlet is discharged, there will still be residual dirt on the filter screen that has not fallen off, so the filter screen needs to be cleaned regularly. Utility Model Content

[0004] The utility model provides a drainage filter pipe, which can simultaneously clean the filter screen with a cleaning brush while cleaning the sewage cavity, and does not need to be cleaned separately, thereby improving the filtering efficiency and saving maintenance costs.

[0005] To this end, the technical solutions adopted are as follows:

[0006] A drainage filter pipe comprises a pipe body and a filter device connected to the pipe body, the filter device comprising a filter body, the filter body being connected to the pipe body via a water inlet and a water outlet, a sewage discharge chamber being detachably fixed to the bottom of the filter body, the interior of which is divided into a filter chamber and a water outlet chamber by a vertically arranged filter screen, the water inlet being connected to the filter chamber via a one-way valve, the water outlet being connected to the water outlet chamber via a one-way valve, and a cleaning device being provided inside the filter chamber.

[0007] The cleaning device includes a cleaning brush that fits the surface of the filter screen. The cleaning brush is slidably connected to the inner wall of the filter body along the vertical direction. There is a connecting rod between the cleaning brush and the sewage discharge chamber. One end of the connecting rod is clamped with the cleaning brush, and the other end is universally connected to the sewage discharge chamber.

[0008] A further technical solution is that a push rod is fixed on the cleaning brush, and a supporting boss is fixed at the entrance of the sewage discharge chamber. When the cleaning brush is located on the top of the filter screen, the push rod abuts against the supporting boss.

[0009] A further technical solution is that both sides of the cleaning brush are in contact with the inner wall of the filter body and are fixed with sliders, and the inner wall of the filter body is provided with a slide groove matching the slider, and the slide groove is arranged along the movement direction of the cleaning brush.

[0010] A further technical solution is that there are multiple filter bodies, and the multiple filter bodies are connected and fixed in sequence through the water outlet and the water inlet.

[0011] A further technical solution is that the cleaning brush includes a brush head and a fixed block, and the connecting rod and the pushing rod are both connected to the fixed block.

[0012] A further technical solution is that the sewage discharge chamber and the filter body are connected by threads, and a sealing ring is provided at the connection.

[0013] A further technical solution is that the bottom of the filter screen has a bend, and the bend is located above the sewage discharge cavity.

[0014] The working principle and beneficial effects of this application are:

[0015] By providing a cleaning brush and connecting it to the sewage chamber, when the sewage chamber is removed, the cleaning brush can be pulled at the same time to clean the dirt on the surface of the filter screen, so that there is no need to clean the filter screen separately, thereby improving the use efficiency of the filter pipe, avoiding the accumulation of dirt on the surface of the filter screen, extending its service life, and improving the overall filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present application will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1 This is a schematic diagram of the overall structure of this application;

[0018] Figure 2 This is a schematic diagram of the internal structure of this application;

[0019] Figure 3 This is a schematic structural diagram of the filtering device described in this application;

[0020] Figure 4 This is a schematic structural diagram of an embodiment of the present application;

[0021] Figure 5 for Figure 3 A magnified view of the structure of the middle part A;

[0022] Figure 6 for Figure 3 A magnified view of the structure of part B in the middle.

[0023] In the figure: 100, filter body; 101, water inlet; 102, water outlet; 103, one-way valve; 1, sewage discharge chamber; 11, supporting boss; 12, sealing ring; 2, filter screen; 21, bend; 3, filter chamber; 4, water outlet chamber; 5, cleaning device; 51, cleaning brush; 511, brush head; 512, fixing block; 52, connecting rod; 53, push rod; 6, slider; 61, slide groove. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figure 1-Figure 4 As shown, a drainage filter pipe includes a pipe body and a filter device connected to the pipe body, the filter device includes a filter body 100, the filter body 100 is connected to the pipe body through a water inlet 101 and a water outlet 102, a sewage chamber 1 is detachably fixed at the bottom of the filter body 100, and the interior is divided into a filter chamber 3 and a water outlet chamber 4 by a vertically arranged filter screen 2, the water inlet 101 is connected to the filter chamber 3 through a one-way valve 103, and the water outlet 102 is connected to the water outlet chamber 4 through a one-way valve 103, and a cleaning device 5 is provided inside the filter chamber 3.

[0026] The cleaning device 5 includes a cleaning brush 51 that contacts the surface of the filter 2. The cleaning brush 51 includes a brush head 511 and a fixing block 512. The connecting rod 52 and the push rod 53 are both connected to the fixing block 512. The cleaning brush 51 is vertically slidably connected to the inner wall of the filter body 100. A connecting rod 52 is provided between the cleaning brush 51 and the sewage chamber 1. One end of the connecting rod 52 is engaged with the cleaning brush 51, and the other end is universally connected to the sewage chamber 1.

[0027] During use of the device, the pipe body is connected to the filter device, water flows into the water inlet 101 and flows into the filter chamber 3, enters the water outlet chamber 4 after being filtered by the filter screen 2, and flows out through the water outlet 102. During this process, filtered dirt will gradually accumulate on the surface of the filter screen 2 and inside the sewage chamber 1. When the dirt reaches a certain level, the sewage chamber 1 needs to be removed for cleaning. Due to the action of the connecting rod 52, when the sewage chamber 1 is removed, the connecting rod 52 moves outward together, thereby driving the cleaning brush 51 connected to the other end to move along the surface of the filter screen 2 to clean the surface of the filter screen 2.

[0028] When the cleaning brush 51 moves to the bottom of the filter 2, the buckle at the connection between the connecting rod 52 and the cleaning brush 51 can be opened, so as to completely remove the sewage chamber 1 and connect the connecting rod 52 for cleaning. After cleaning, the connecting rod 52 is re-connected, and the cleaning brush 51 is pushed to the top of the filter 2 using the connecting rod 52, and the sewage chamber 1 and the filter body 100 are fixed. The filter 2 will be cleaned during the reciprocating process of the cleaning brush 51.

[0029] By providing a cleaning brush 51 and connecting it to the sewage chamber 1, when the sewage chamber 1 is removed, the cleaning brush 51 can be pulled at the same time to clean the dirt on the surface of the filter screen 2, so that there is no need to clean the filter screen 2 separately, thereby improving the use efficiency of the filter pipe, avoiding the accumulation of dirt on the surface of the filter screen 2, extending its service life, and improving the overall filtration efficiency.

[0030] like Figure 3 As shown, a push rod 53 is fixed on the cleaning brush 51, and the push rod 53 is located on both sides of the cleaning brush 51. A supporting boss 11 is fixed at the entrance of the sewage chamber 1. When the cleaning brush 51 is located on the top of the filter screen 2, the push rod 53 abuts against the supporting boss 11, so that the supporting boss 11 on the sewage chamber 1 can be used to push the push rod 53 to reset the cleaning brush 51, thereby assisting the function of the connecting rod 52 and avoiding the disadvantage that the connecting rod 52 is relatively flexible and has an excessive range of motion when pushed for reset.

[0031] In addition, both sides of the cleaning brush 51 are in contact with the inner wall of the filter body 100 and are fixed with sliders 6. The inner wall of the filter body 100 is provided with a slide groove 61 that matches the slider 6. The slide groove 61 is arranged along the movement direction of the cleaning brush 51, thereby making the reciprocating movement of the cleaning brush 51 more convenient.

[0032] like Figure 4 As shown, in the overall connection of the pipe body, multiple filter bodies 100 can be interconnected or dispersed in different locations within the pipe body, thereby further enhancing water filtration. The sewage chamber 1 and the filter body 100 are connected by a threaded connection, and a sealing ring 12 is provided at the connection, which facilitates disassembly during use and prevents water leakage.

[0033] like Figure 2 As shown, the bottom of the filter screen 2 has a bend 21, and the bend 21 is located above the sewage chamber 1, so that when the sewage chamber 1 is removed, there will be no interference with the filter screen 2, and it is also easier to produce and install.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A drainage filter pipe, comprising a pipe body and a filter device connected to the pipe body, wherein the filter device comprises a filter body (100), and the filter body (100) is connected to the pipe body through a water inlet (101) and a water outlet (102), and is characterized in that: The bottom of the filter body (100) is detachably fixed with a sewage discharge chamber (1), and the interior is divided into a filter chamber (3) and a water outlet chamber (4) by a vertically arranged filter screen (2). The water inlet (101) is connected to the filter chamber (3) through a one-way valve (103), and the water outlet (102) is connected to the water outlet chamber (4) through a one-way valve (103). The filter chamber (3) has a cleaning device (5) inside. The cleaning device (5) comprises a cleaning brush (51) that is in contact with the surface of the filter screen (2), the cleaning brush (51) being slidably connected to the inner wall of the filter body (100) in a vertical direction, a connecting rod (52) being provided between the cleaning brush (51) and the sewage discharge chamber (1), one end of the connecting rod (52) being clamped to the cleaning brush (51), and the other end being universally connected to the sewage discharge chamber (1); A push rod (53) is fixed on the cleaning brush (51), and a support boss (11) is fixed at the entrance of the sewage discharge chamber (1). When the cleaning brush (51) is located on the top of the filter screen (2), the push rod (53) abuts against the support boss (11); When the sewage discharge chamber (1) is removed, the connecting rod (52) moves outward together, driving the cleaning brush (51) connected to the other end to move along the surface of the filter screen (2), thereby cleaning the surface of the filter screen (2).

2. A drainage filter pipe according to claim 1, characterized in that: Both sides of the cleaning brush (51) are in contact with the inner wall of the filter body (100) and are fixed with sliders (6). The inner wall of the filter body (100) is provided with a slide groove (61) matching the slider (6), and the slide groove (61) is arranged along the movement direction of the cleaning brush (51).

3. A drainage filter pipe according to claim 1, characterized in that: There are multiple filter bodies (100), and the multiple filter bodies (100) are connected and fixed in sequence through the water outlet (102) and the water inlet.

4. A drainage filter pipe according to claim 1, characterized in that: The cleaning brush (51) comprises a brush head (511) and a fixed block (512), and the connecting rod (52) and the pushing rod (53) are both connected to the fixed block (512).

5. The drainage filter pipe according to claim 1, characterized in that: The sewage discharge chamber (1) and the filter body (100) are connected via threads, and a sealing ring (12) is provided at the connection.

6. The drainage filter pipe according to claim 1, characterized in that: The bottom of the filter screen (2) has a bend (21), and the bend (21) is located above the sewage discharge chamber (1).

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