Double-filter-screen circulating sewage pump

Abstract

The utility model discloses a double-filter-screen circulating sewage pump which comprises a main body mechanism. The main body mechanism comprises a sewage pump main body, a water outlet pipe installed on one side of the sewage pump main body, a water inlet pipe installed on the other side of the sewage pump main body, a four-way shell symmetrically fixed to the top end of the sewage pump main body, a control base rotationally arranged in an inner cavity of the four-way shell, and a servo motor installed at the top end of the four-way shell and connected with the control base through a shaft. The four-way shells are symmetrically arranged on the two sides of the sewage pump body, the filtering pieces are symmetrically arranged between the opposite four-way shells and communicate with the four-way shells on the two sides, the sewage discharge pipe is installed on the four-way shell on one side, and the water diversion piece is installed on the four-way shell on the other side and communicates with the water outlet pipe. The double-filter-screen circulating sewage pump has the advantages that the double-filter-screen circulating switching filtering is achieved, and the filter screens are automatically cleaned.

Description

Technical Field

[0001] This utility model relates to the field of sewage pump technology, specifically a dual-filter circulating sewage pump. Background Technology

[0002] Sewage pumps are a type of centrifugal impurity pump, available in various forms, including submersible and dry types. The most commonly used submersible pump is the QW type, while the most common dry sewage pumps are the W type horizontal and WL type vertical. They are primarily used to transport urban sewage, feces, or liquids containing fibrous materials, paper scraps, or other solid particles. The temperature of the transported medium is typically no higher than 80℃. Because the transported medium contains easily entangled or bundled fibers, the pump's flow channel is prone to clogging. Clogged pumps cannot function properly and may even burn out the motor, resulting in poor sewage discharge. Therefore, sewage pump inlets are generally equipped with filters.

[0003] The existing sewage pumps have the following drawbacks during use: the filter screen is usually set to a single screen, the filtration efficiency is low, and once the filter screen is clogged, cleaning is troublesome, time-consuming and laborious. Therefore, there is room for improvement. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows: a dual-filter circulating sewage pump, comprising: a main body, the main body including a sewage pump body, an outlet pipe installed on one side of the sewage pump body, an inlet pipe installed on the other side of the sewage pump, a four-way housing symmetrically fixed to the top of the sewage pump body, a control seat rotatably disposed in the inner cavity of the four-way housing, a servo motor installed on the top of the four-way housing and connected to the control seat by its shaft, filter elements symmetrically disposed between the opposite four-way housings and communicating with the two four-way housings, a sewage discharge pipe installed on one side of the four-way housing, and a water inlet element installed on the other side of the four-way housing and communicating with the outlet pipe.

[0006] The four-way housing includes an outer shell fixed to the top of the sewage pump, lateral pipes symmetrically fixed to both sides of the outer shell, a cleaning pipe installed on one side of the outer shell, and a water supply pipe installed on the other side of the outer shell.

[0007] In a preferred embodiment, the present invention can be further configured such that the water inlet component includes a water inlet pipe connecting the main body water inlet of the sewage pump and the water delivery pipe in the four-way housing on one side, and a flow sensor installed on the water inlet pipe.

[0008] In a preferred embodiment, the present invention can be further configured such that: the filter element includes a cylinder disposed between opposite four-way housings and a filter cartridge mounted on the inner wall of the cylinder, and both sides of the cylinder are connected to lateral pipes in the four-way housings on both sides through pipes.

[0009] In a preferred embodiment, the present invention can be further configured such that: a cross-shaped flow channel is provided inside the control seat, and a baffle is obliquely fixed on the inner wall of the cross-shaped flow channel to divide the cross-shaped flow channel into two L-shaped flow channels.

[0010] In a preferred embodiment, the present invention can be further configured such that the water inlet includes a water inlet pipe connecting the cleaning pipe and the water outlet pipe in a four-way housing on one side, and an electric valve installed on the water inlet pipe.

[0011] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0012] 1. In this utility model, two four-way housings are symmetrically arranged at the top of the sewage pump body, and two filter elements are symmetrically arranged between the opposing four-way housings. Both filter elements are connected to the four-way housings on both sides. A control seat is installed inside each four-way housing, and a cross-shaped flow channel is provided within the control seat. A baffle separates the cross-shaped flow channel into two L-shaped flow channels. Furthermore, a servo motor is installed at the top of the four-way housing to drive the control seat to rotate. Simultaneously, one four-way housing is connected to the sewage pump body through an inlet component. With the above arrangement, sewage enters through one four-way housing and flows into the control seat. Guided by the flow sensor, the wastewater enters the filter element on one side for filtration. The filtered wastewater then enters the four-way housing on the other side and, guided by the control seat, flows into the main body of the wastewater pump through the inlet. When the flow sensor in the inlet detects a decrease in the inlet flow, it indicates that the filter element on that side is clogged. The servo motors on both four-way housings are then activated, causing the control seat to rotate and introduce the wastewater into the filter element on the other side for filtration. Through the above setup, a dual-filter configuration is adopted, with the two filters taking turns to filter, effectively preventing the wastewater pump from becoming clogged and affecting its normal operation, thus increasing its practicality.

[0013] 2. In this utility model, a drain pipe is provided on one side of the four-way housing, and a water inlet is provided on the other side of the four-way housing. The water inlet is connected to the water outlet pipe. When the filter element on one side is blocked, the servo motor drives the control seat to rotate, connecting the water inlet, the blocked filter element, and the drain pipe. At this time, water flows in through the water inlet and enters the blocked filter element under the guidance of the control seat, backwashing the blocked filter element, flushing out impurities, and then discharging them through the drain pipe via the control seat on the other side, thus completing the automatic cleaning of the filter element and further increasing its practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a partial structural cross-sectional view of the present invention;

[0016] Figure 3 This is a partial exploded view of the structure of this utility model;

[0017] Figure 4 This is a cross-sectional view and a schematic diagram of the control seat of this utility model.

[0018] Figure label:

[0019] 100. Main structure; 110. Sewage pump body; 120. Outlet pipe; 130. Inlet component; 131. Inlet pipe; 132. Flow sensor; 140. Four-way housing; 141. Outer shell; 142. Side pipe; 143. Sewage cleaning pipe; 144. Water supply pipe; 150. Control base; 151. Cross flow channel; 152. Baffle; 160. Servo motor; 170. Filter element; 171. Cylinder; 172. Filter cartridge; 180. Sewage discharge pipe; 190. Water inlet component; 191. Water inlet pipe; 192. Electric valve. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0021] Some embodiments of this utility model are described below with reference to the accompanying drawings.

[0022] Combination Figure 1-4 As shown, this embodiment provides a dual-filter circulating sewage pump, including: a main body 100.

[0023] The main structure 100 includes a sewage pump body 110, an outlet pipe 120 installed on one side of the sewage pump body 110, an inlet pipe 131 installed on the other side of the sewage pump, a four-way housing 140 symmetrically fixed to the top of the sewage pump body 110, a control seat 150 rotatably disposed in the inner cavity of the four-way housing 140, a servo motor 160 installed on the top of the four-way housing 140 and connected to the control seat 150 by its shaft, a filter element 170 symmetrically disposed between the opposite four-way housings 140 and communicating with the two four-way housings 140, a sewage discharge pipe 180 installed on one side of the four-way housing 140, and a water inlet element 190 installed on the other side of the four-way housing 140 and communicating with the outlet pipe 120.

[0024] The sewage pump body 110 is used to pump out sewage for subsequent treatment. The outlet pipe 120 is used to pump out the sewage. The inlet component 130 is used to introduce sewage into the sewage pump body 110. The inlet component 130 includes an inlet pipe 131 installed on the inlet of the sewage pump body 110 and a flow sensor 132 installed on the inlet pipe 131. The inlet pipe 131 is used to introduce sewage. The flow sensor 132 is used to monitor the flow in the inlet pipe 131 in real time. When the flow in the inlet pipe 131 decreases, it can be determined that the filter element 170 is blocked.

[0025] The four-way housing 140 is symmetrically fixed on the sewage pump body 110. The four-way housing includes an outer shell 141 fixed to the top of the sewage pump, lateral pipes 142 symmetrically fixed on both sides of the outer shell 141, a cleaning pipe 143 installed on one side of the outer shell 141, and a water supply pipe 144 installed on the other side of the outer shell 141.

[0026] The outer casing 141 is used to install the control base 150 to ensure the stability of the control base 150 when rotating. The side pipe 142 is used to connect to the filter element 170 to facilitate the introduction of sewage into the filter element 170 or the discharge of filtered sewage. The water supply pipe 144 in the four-way casing 140 on one side is used to introduce sewage into the filter element 170. The water supply pipe 144 in the four-way casing 140 on the other side is connected to the water inlet pipe 131 to send the filtered sewage into the sewage pump body 110.

[0027] The filter element 170 is used to filter sewage, including a cylinder 171 disposed between the four-way housings 140 and a filter cartridge 172 installed on the inner wall of the cylinder 171. Both sides of the cylinder 171 are connected to the lateral pipes 142 in the four-way housings 140 on both sides through pipes to facilitate the entry and exit of sewage. The filter screen is used to filter impurities in the sewage.

[0028] The control seat 150 is used to control the flow of sewage into the filter element 170 on one side or the other side. It is rotatably mounted in the inner cavity of the four-way housing 140. The control seat 150 is provided with a cross channel 151. A baffle 152 is obliquely fixed on the inner wall of the cross channel 151 to divide the cross channel 151 into two L-shaped channels. One L-shaped channel is used to connect the water supply pipe 144 with the side pipe 142 on one side, which facilitates the introduction and exit of sewage into and out of the filter element 170. The other L-shaped channel is used to connect the cleaning pipe 143 with the side pipe 142 on the other side, which facilitates the cleaning of the clogged filter element 170.

[0029] The water inlet 190 includes a water inlet pipe 191 connecting the cleaning pipe 143 and the outlet pipe 120 in the four-way housing 140 on one side, and an electric valve 192 installed on the water inlet pipe 191. The water inlet pipe 191 is connected to the water supply pipe 144 in the four-way housing 140 and the inlet pipe 131, which can reverse the water flow in the outlet pipe 120 to the filter element 170 to backwash the filter cartridge 172 and flush out impurities. The drain pipe 180 is connected to the cleaning pipe 143 in the four-way housing 140 on the other side, and is used to discharge impurities from the backwash.

[0030] The working principle and usage process of this utility model are as follows: During use, wastewater enters through the water supply pipe 144 on one side of the four-way housing 140. At this time, the L-shaped flow channel in one side of the control seat 150 connects the filter element 170 on that side with the water supply pipe 144, and the L-shaped flow channel in the other side of the control seat 150 also connects the filter element 170 on that side with the water supply pipe 144. The wastewater enters the filter element 170 on that side, is filtered by the filter cartridge 172, and then sent to the wastewater pump through the inlet pipe 131. Under the action of the wastewater pump, it is discharged through the outlet pipe 120. When the flow sensor 132 detects a decrease in the flow rate of the inlet pipe 131, it can be determined that the filter cartridge 172 on that side is blocked. The servo motors 160 on both sides are then activated, driving the control seats 150 in the four-way housings 140 on both sides to rotate. At this time, the L-shaped flow channel in one side control seat 150 connects the other side filter element 170 and water supply pipe 144, and the L-shaped flow channel in the other side control seat 150 connects the other side filter element 170 and water supply pipe 144, completing the switching of filter cartridge 172, so that the sewage filtration operation can continue. At the same time, the rotation of the filter seat connects the water inlet 190, the clogged filter element 170 and the sewage discharge pipe 180. At this time, the electric valve 192 opens, and the water in the outlet pipe 120 enters through the water inlet pipe 191 and enters the clogged filter element 170 under the guidance of the control seat 150, backwashing the clogged filter cartridge 172, flushing out impurities, etc., and entering the sewage discharge pipe 180 through the other side control seat 150 for discharge, completing the automatic cleaning of filter element 170.

[0031] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A dual-filter circulating sewage pump, comprising: The main body (100) is characterized in that it includes a sewage pump body (110), an outlet pipe (120) installed on one side of the sewage pump body (110), an inlet pipe (131) installed on the other side of the sewage pump, a four-way housing (140) symmetrically fixed to the top of the sewage pump body (110), a control seat (150) rotatably disposed in the inner cavity of the four-way housing (140), a servo motor (160) installed on the top of the four-way housing (140) and connected to the control seat (150) by its shaft, a filter element (170) symmetrically disposed between the opposite four-way housings (140) and communicating with the two four-way housings (140), a sewage pipe (180) installed on one side of the four-way housing (140), and a water inlet element (190) installed on the other side of the four-way housing (140) and communicating with the outlet pipe (120). The four-way housing (140) includes an outer shell (141) fixed to the top of the sewage pump, lateral pipes (142) symmetrically fixed on both sides of the outer shell (141), a cleaning pipe (143) installed on one side of the outer shell (141), and a water supply pipe (144) installed on the other side of the outer shell (141).

2. The dual-filter circulating sewage pump according to claim 1, characterized in that, The inlet component (130) includes an inlet pipe (131) that connects the inlet of the sewage pump body (110) to the water delivery pipe (144) in the four-way housing (140) on one side, and a flow sensor (132) installed on the inlet pipe (131).

3. The dual-filter circulating sewage pump according to claim 1, characterized in that, The filter element (170) includes a cylinder (171) disposed between the four-way housings (140) and a filter cartridge (172) installed on the inner wall of the cylinder (171). Both sides of the cylinder (171) are connected to the lateral pipes (142) in the four-way housings (140) on both sides through pipes.

4. The dual-filter circulating sewage pump according to claim 1, characterized in that, The control seat (150) is provided with a cross-shaped flow channel (151), and a baffle (152) is obliquely fixed on the inner wall of the cross-shaped flow channel (151) to divide the cross-shaped flow channel (151) into two L-shaped flow channels.

5. A dual-filter circulating sewage pump according to claim 1, characterized in that, The water inlet (190) includes a water inlet pipe (191) that connects the cleaning pipe (143) and the water outlet pipe (120) in the four-way housing (140) on one side, and an electric valve (192) installed on the water inlet pipe (191).

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