Anti-clogging self-priming pump

Abstract

The utility model discloses a kind of anti-clogging self-priming pumps, including self-priming pump main body, the water inlet end of self-priming pump main body is connected with first connecting pipe, filter mechanism for filtering water body is equipped on the first connecting pipe, the filter mechanism includes two first shunt pipes arranged on the first connecting pipe, the end of the first shunt pipe away from the first connecting pipe is equipped with filter, top cover is threadedly connected on the filter, filter screen is equipped in the filter.The utility model is provided with the filter mechanism of the device, by the parallel design of two filters, two first shunt pipes and two second shunt pipes, when the filter screen in one filter is blocked, it can be quickly switched to another filter to work, without shutting down self-priming pump main body, solve the drawbacks that traditional single filter needs to be maintained by stopping, especially suitable for agricultural irrigation, industrial circulating water and other continuous operation scenes.

Description

Technical Field

[0001] This utility model relates to the field of self-priming pump technology, and in particular to an anti-clogging self-priming pump. Background Technology

[0002] Self-priming pumps are a type of fluid transport device that can automatically draw in liquid without pre-filling the suction pipe. Their core is to use the high-speed rotation of the impeller to create negative pressure in the pump chamber, which draws in the liquid to be transported and pressurizes it for discharge. They are widely used in agricultural irrigation, industrial circulating water, municipal water supply and drainage, sewage treatment and other scenarios.

[0003] Traditional self-priming pump filtration systems typically consist of a single filter and a single filter element. The filter intercepts impurities through internal filter screens, filter cotton, and other filter elements. This structure has significant drawbacks: Firstly, the filter element is prone to clogging after prolonged use. In such cases, the self-priming pump must be completely shut down, the filter disassembled, and the filter element removed for cleaning or replacement. For continuous operation scenarios (such as industrial circulating water systems or peak agricultural irrigation periods), a single downtime for maintenance can take 20-60 minutes, leading to production interruptions or irrigation delays, severely impacting operational efficiency. To address these issues, this invention proposes an anti-clogging self-priming pump. Utility Model Content

[0004] The main objective of this invention is to provide a self-priming pump that prevents clogging, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A clog-resistant self-priming pump includes a self-priming pump body. A first connecting pipe is connected to the water inlet end of the self-priming pump body. A filter mechanism for filtering water is provided on the first connecting pipe. The filter mechanism includes two first branch pipes disposed on the first connecting pipe. A filter is connected to the end of each first branch pipe away from the first connecting pipe. A top cover is threaded onto the filter. A filter screen is provided inside the filter. A second branch pipe communicating with the filter's interior is provided on the filter. The opposite ends of the two second branch pipes are connected to a second connecting pipe. A first sealing ring is provided inside the top cover. Multiple support legs are fixedly connected to the lower end of the filter. A sewage discharge mechanism for discharging wastewater is provided below the filter.

[0006] Preferably, the sewage discharge mechanism includes a sewage discharge pipe disposed at the lower end of the filter, and the sewage discharge pipe is equipped with a valve.

[0007] Preferably, an installation cylinder is fixedly connected to the upper end of the filter screen, and a connecting rod is threadedly connected inside the installation cylinder. The upper end of the connecting rod is fixedly connected to the top of the inner part of the top cover.

[0008] Preferably, a fixing ring is fixedly connected to the inner wall of the filter, and a second sealing ring is provided on the fixing ring.

[0009] Preferably, the first diversion pipe is equipped with a flow meter, and the top cover is equipped with a controller and an alarm.

[0010] Preferably, the top cover is provided with an observation window, and a buzzer and a handle are installed on the top cover.

[0011] Compared with the prior art, the present invention has the following beneficial effects: This device is equipped with a filtration mechanism. Through the parallel design of two filters, two first diversion pipes and two second diversion pipes, when the filter screen in one filter is clogged, it can quickly switch to the operation of the other filter without shutting down the self-priming pump. This solves the drawback of traditional single filters requiring shutdown for maintenance and is especially suitable for scenarios that require continuous operation, such as agricultural irrigation and industrial circulating water. This device is equipped with a sewage discharge mechanism. The sewage discharge pipe is directly connected to the bottom of the filter. When cleaning, you only need to open the valve to quickly discharge the deposited sewage and some loose impurities. Compared with the traditional method of "scooping with an external container", the operation time is shortened to 1-2 minutes, and secondary pollution caused by sewage spillage is avoided, which significantly improves the convenience of cleaning. This device is equipped with a fixing ring, which provides stable support for the filter screen and works with the second sealing ring to seal the gap between the filter screen and the filter, preventing unfiltered water from flowing around it. This device is equipped with flow meters, controllers, etc. The flow meter on the first branch pipe monitors the flow in real time, and the controller, alarm and buzzer on the top cover form a dual warning of sound and light, which avoids impeller wear of the self-priming pump body due to long-term insufficient flow, and greatly extends the service life of the equipment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a self-priming pump for preventing clogging proposed in this utility model; Figure 2 This is a bottom view of an anti-clogging self-priming pump proposed in this utility model; Figure 3 for Figure 2 Enlarged view of the structure at point A; Figure 4 This is a side view of a self-priming pump designed to prevent clogging according to this utility model. Figure 5 This is another side view of the anti-clogging self-priming pump proposed in this utility model.

[0013] In the diagram: 1 Self-priming pump body, 2 First connecting pipe, 3 First diversion pipe, 4 Filter, 5 Top cover, 6 Filter screen, 7 Second diversion pipe, 8 Second connecting pipe, 9 Sewage pipe, 10 First sealing ring, 11 Mounting cylinder, 12 Connecting rod, 13 Handle, 14 Second sealing ring, 15 Fixing ring, 16 Flow meter, 17 Observation window, 18 Alarm, 19 Controller, 20 Buzzer. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] like Figure 1-5 As shown, a clog-resistant self-priming pump includes a self-priming pump body 1, which is a device in the prior art, such as the L-series self-priming pump from Xinlai Group. The water inlet end of the self-priming pump body 1 is connected to a first connecting pipe 2. The first connecting pipe 2 is equipped with a filter mechanism for filtering water. The filter mechanism includes two first diversion pipes 3 set on the first connecting pipe 2. The first diversion pipes 3 are equipped with valves, and the second diversion pipes 7 are also equipped with valves. The end of the first diversion pipe 3 away from the first connecting pipe 2 is connected to a filter 4. A top cover 5 is threadedly connected to the filter 4. A filter screen 6 is provided inside the filter 4. The filter 4 is equipped with a second diversion pipe 7 that communicates with its interior. The opposite ends of the two second diversion pipes 7 are connected to a second connecting pipe 8. A first sealing ring 10 is provided inside the top cover 5. Multiple support legs are fixedly connected to the lower end of the filter 4.

[0016] The filter 4 is equipped with a sewage discharge mechanism for discharging sewage. The sewage discharge mechanism includes a sewage discharge pipe 9 located at the lower end of the filter 4. The sewage discharge pipe 9 is equipped with a valve. By opening the valve on the sewage discharge pipe 9, the sewage inside the filter 4 can be discharged directly from the sewage discharge pipe 9 without the need to use an external container to scoop out the sewage.

[0017] In this utility model, the upper end of the filter screen 6 is fixedly connected to the mounting cylinder 11, and the mounting cylinder 11 is internally threaded with a connecting rod 12. The upper end of the connecting rod 12 is fixedly connected to the top of the top cover 5. When disassembling, the filter screen 6 can be taken out simultaneously by unscrewing the top cover 5 with the handle 13. There is no need to reach into the filter 4 separately to disassemble the filter components. The maintenance efficiency is improved by more than 60%, and the contact between the hands and sewage and impurities is avoided, reducing the risk of operation.

[0018] In this invention, a fixing ring 15 is fixedly connected to the inner wall of the filter 4, and a second sealing ring 14 is provided on the fixing ring 15. The fixing ring 15 provides stable support for the filter screen 6 and prevents the filter screen 6 from shifting due to water flow impact. The second sealing ring 14 fills the gap between the filter screen 6 and the inner wall of the filter 4, preventing unfiltered water from "flowing around" and entering the second diversion pipe 7 through the gap, ensuring that all water is filtered by the filter screen 6, and maintaining a filtration efficiency of over 95%, thus solving the problem of "filtration failure" caused by insufficient sealing in traditional filters.

[0019] In this utility model, a flow meter 16 is provided on the first diversion pipe 3, and a controller 19 and an alarm 18 are provided on the top cover 5. The flow meter 16 monitors the water flow speed in the first diversion pipe 3 in real time. When the filter screen 6 is blocked and the flow rate drops to a preset threshold (such as 50% of the rated flow rate), the flow meter 16 transmits a signal to the controller 19, and the controller 19 triggers the alarm 18 to start, realizing the "blockage warning" function. Compared with the traditional "fault detection" mode, it can provide a warning 10-15 minutes in advance, avoid impeller wear of the self-priming pump body 1 due to long-term insufficient flow, and extend the service life of the equipment.

[0020] In this utility model, the top cover 5 is provided with an observation window 17, and a buzzer 20 and a handle 13 are installed on the top cover 5. The observation window 17 is made of a transparent and impact-resistant material (such as polycarbonate), allowing operators to visually view the amount of impurities accumulated in the filter 4, assisting in judging the degree of blockage and avoiding misjudgment based solely on flow data. The handle 13 has an "arc-shaped anti-slip design" to facilitate forcefully unscrewing the top cover 5. The buzzer 20 and the alarm 18 form a "dual warning of sound and light," which can effectively remind operators even in noisy industrial environments.

[0021] When in use, the operator must first check the status of each valve (all are initially closed), the sealing performance of the first sealing ring 10 and the second sealing ring 14, and ensure that there is no leakage in the self-priming pump body 1, each pipeline and filter 4. Connect the second connecting pipe 8 to the external pipeline and put it into the water body to be transported. Connect the outlet end of the self-priming pump body 1 to the external water demand equipment through the pipeline to complete the preliminary preparation. Normal filtration stage: Open the valves of the first diversion pipe 3 and the second diversion pipe 7 corresponding to one of the filters 4 (keep the valve of the other filter 4 closed), and start the self-priming pump body 1; the water to be transported enters the first diversion pipe 3 in the open state through the first connecting pipe 2 and flows into the filter 4; when the water passes through the filter screen 6, impurities are intercepted on the surface of the filter screen 6, and the filtered clean water flows into the second connecting pipe 8 through the second diversion pipe 7, and finally enters the self-priming pump body 1, which pressurizes and transports it to the target location; Clogging warning and switching phase: As impurities accumulate on the surface of filter screen 6, the flow rate in the first diversion pipe 3 gradually decreases; when the flow meter 16 detects that the flow rate is lower than the preset threshold, it transmits a signal to the controller 19, and the controller 19 simultaneously activates the alarm 18 (light warning) and the buzzer 20 (sound warning); after the operator confirms through the observation window 17 that the filter screen 6 in the filter 4 is clogged, he closes the valves of the first diversion pipe 3 and the second diversion pipe 7 corresponding to the filter 4, and at the same time opens the corresponding valve of another standby filter 4; the standby filter 4 immediately enters the working state, and the water is switched to be filtered in the filter 4. The entire switching process does not require shutting down the self-priming pump body 1, achieving continuous delivery; Cleaning stage of clogged filter 4: After the switch is completed, open the drain pipe 9 valve at the lower end of the clogged filter 4. The sewage and loose impurities deposited in the filter 4 will be discharged through the drain pipe 9. After the sewage is drained, unscrew the top cover 5 counterclockwise by using the handle 13. The top cover 5 will simultaneously remove the connecting rod 12, the mounting cylinder 11, and the filter screen 6. After cleaning the impurities on the surface of the filter screen 6 (or replacing it with a new filter screen 6), put the filter screen 6 back into the filter 4, ensuring that the bottom of the filter screen 6 is tightly fitted with the second sealing ring 14 on the fixing ring 15. Then, screw the top cover 5 back clockwise and close the drain pipe 9 valve. The filter 4 will then return to standby mode, waiting for the next switch.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A clog-resistant self-priming pump, comprising a self-priming pump body (1), characterized in that, The self-priming pump body (1) is connected to a first connecting pipe (2) at the water inlet end. The first connecting pipe (2) is provided with a filter mechanism for filtering water. The filter mechanism includes two first diversion pipes (3) set on the first connecting pipe (2). The end of the first diversion pipe (3) away from the first connecting pipe (2) is connected to a filter (4). The filter (4) is threaded with a top cover (5). The filter (4) is provided with a filter screen (6). The filter (4) is provided with a second diversion pipe (7) connected to its interior. The two second diversion pipes (7) are connected to a second connecting pipe (8) at opposite ends. The top cover (5) is provided with a first sealing ring (10). The filter (4) is fixedly connected with multiple support legs at its lower end. The filter (4) is provided with a sewage discharge mechanism for discharging sewage.

2. The anti-clogging self-priming pump according to claim 1, characterized in that, The sewage discharge mechanism includes a sewage pipe (9) located at the lower end of the filter (4), and a valve is provided on the sewage pipe (9).

3. The anti-clogging self-priming pump according to claim 2, characterized in that, The filter screen (6) is fixedly connected to the upper end of the mounting cylinder (11), and the mounting cylinder (11) is threaded with a connecting rod (12). The upper end of the connecting rod (12) is fixedly connected to the top of the top cover (5).

4. The anti-clogging self-priming pump according to claim 3, characterized in that, The filter (4) has a fixed ring (15) fixedly connected to its inner wall, and a second sealing ring (14) is provided on the fixed ring (15).

5. A self-priming pump for preventing clogging according to claim 4, characterized in that, The first diversion pipe (3) is equipped with a flow meter (16), and the top cover (5) is equipped with a controller (19) and an alarm (18).

6. A self-priming pump for preventing clogging according to claim 5, characterized in that, The top cover (5) is provided with an observation window (17) at the upper end, and a buzzer (20) and a handle (13) are installed at the upper end of the top cover (5).

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