A pool pre-filter blowdown structure

Abstract

This utility model discloses a pre-filter drainage structure for swimming pools, including an outer tank with a filter element inside. Multiple grooves are formed on the outer wall of the outer tank, and fixing blocks are inserted into each groove. Grooves are formed at both ends of each groove. A slider is fixedly connected to the outer wall of each fixing block, and the slider is inserted into a groove on the inner wall of the outer tank's groove. A second strong magnet is embedded in the fixing block. A fixing ring is fitted onto the outer wall of the filter element, and a scraper is fixedly connected to the inner wall of the fixing ring, adhering to the surface of the filter element. A first strong magnet is embedded in the outer wall of the fixing ring, and the first and second strong magnets are magnetically attracted to each other. The scraper and the filter element are slidably connected. A drain pipe is connected to the bottom of the outer tank, and a drain valve is installed on the drain pipe. This device can discharge impurities from the surface of the filter element without opening the cover, thus ensuring the filtration quality of the filter element.

Description

Technical Field

[0001] This utility model relates to the field of pool pre-filter technology, specifically a pool pre-filter sewage discharge structure. Background Technology

[0002] A pool pre-filter is an important component for protecting the pool water circulation system. Its main purpose is to remove larger impurities and contaminants, such as leaves, insects, and mud, before the water enters the main filtration system. By pre-filtering these larger particles, the pre-filter can effectively reduce the burden on the main filtration system, extend its service life, and improve the efficiency and water cleanliness of the entire pool system.

[0003] Currently, pool pre-filters typically consist of an outer tank, an inner filter element, and a cover. Since the filter element is located inside the outer tank, it is inconvenient for surface impurities to be discharged, which can easily reduce the efficiency of the filter element. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a wastewater discharge structure for a pool pre-filter, in order to solve the problem mentioned in the background art that impurities on the surface of the pool pre-filter cartridge are not easily discharged.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pool pre-filter drainage structure, comprising an outer barrel, a filter element disposed inside the outer barrel, a groove formed on the outer wall of the outer barrel, a fixing block disposed inside the groove, a second strong magnet embedded in the fixing block, a fixing ring fitted on the outer wall of the filter element, a scraper fixedly connected to the inner wall of the fixing ring, the scraper adhering to the surface of the filter element, a first strong magnet embedded in the outer wall of the fixing ring, the first strong magnet and the second strong magnet being magnetically attracted and connected, the scraper and the filter element forming a sliding connection, a drain pipe connected to the bottom of the outer barrel, and a drain valve disposed on the drain pipe.

[0006] Preferably, the outer wall of the outer barrel is provided with multiple sliding grooves, each of which is fitted with a fixing block, and both ends of the multiple sliding grooves are provided with grooves.

[0007] Preferably, a slider is fixedly connected to the outer wall of the fixing block, and the slider is inserted into the groove of the inner wall of the outer barrel groove, and the slider matches the groove structure of the inner wall of the outer barrel groove.

[0008] Preferably, a handle is fixedly connected to one side of the fixing block, the other side of the fixing block has an arc-shaped structure, and the other side of the fixing block is attached to the outer wall of the outer barrel.

[0009] Preferably, both the fixing ring and the scraper are annular structures, and multiple scrapers are distributed longitudinally at equal intervals about the inner wall of the fixing ring.

[0010] Preferably, both the filter element and the water outlet pipe are provided with sealing rings on their outer walls, and the sealing rings are located at the gaps where the cover connects to the filter element and the water outlet pipe.

[0011] Preferably, a water inlet pipe is fixedly connected to one side of the outer barrel, a cover is fixedly connected to the top of the outer barrel, a water outlet pipe is fixedly connected to the top of the cover, and one end of the water outlet pipe is connected to the top of the filter element.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) This device can discharge impurities from the surface of the filter element without opening the cover, thus ensuring the filtration quality of the filter element.

[0014] (2) This device uses a movable fixing ring fitted on the outer wall of the filter element. The inner wall of the fixing ring is equipped with a scraper that adheres to the surface of the filter element. At the same time, a manually sliding fixing block is set on the outer wall of the outer barrel. The fixing block is magnetically connected to the fixing ring. Thus, the fixing ring is driven to slide during the manual sliding of the fixing block, so that the scraper on the inner wall of the fixing ring scrapes off the impurities on the surface of the filter element, making it easy for the impurities to be discharged from the drain pipe, thus ensuring the filtration quality of the filter element.

[0015] (3) This device embeds a second strong magnet and a first strong magnet inside the fixing block and the fixing ring respectively. Under the principle of opposite poles attracting each other, the fixing block and the fixing ring can be tightly attracted, so that impurities on the surface of the filter element can be discharged without opening the cover. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the sewage discharge structure of a swimming pool pre-filter according to the present invention;

[0017] Figure 2 This is a cross-sectional view of the sewage discharge structure of a swimming pool pre-filter according to this utility model;

[0018] Figure 3 This utility model relates to a wastewater discharge structure for a swimming pool pre-filter. Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a top view of the connection between the fixing ring and the fixing block in the sewage discharge structure of a swimming pool pre-filter according to this utility model.

[0020] In the diagram: 1. Cover; 2. Sealing ring; 3. Outlet pipe; 4. Inlet pipe; 5. Outer tub; 6. Drain valve; 7. Drain pipe; 8. Filter element; 9. Scraper; 10. Fixing ring; 11. First strong magnet; 12. Handle; 13. Second strong magnet; 14. Fixing block; 15. Sliding block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4This utility model provides a technical solution: a pool pre-filter drainage structure, including an outer tank 5, a filter element 8 inside the outer tank 5, and sealing rings 2 on the outer walls of both the filter element 8 and the outlet pipe 3. The sealing rings 2 are located at the gaps connecting the cover 1 and the filter element 8 and the outlet pipe 3. This structure improves the sealing performance through the sealing rings 2, preventing water leakage at the connection between the filter element 8 and the outlet pipe 3 and the cover 1. The outer wall of the outer tank 5 has multiple sliding grooves, each containing a fixing block 14. Grooves are provided at both ends of the multiple sliding grooves. This structure allows the fixing blocks 14 to slide linearly within the outer tank 5, improving the linearity of the movement of the fixing blocks 14. The outer wall of the fixing block 14 is fixedly connected to a slider 15, which is inserted into a groove in the inner wall of the outer tub 5. The slider 15 matches the groove structure of the inner wall of the outer tub 5. This structure prevents the fixing block 14 from detaching from the outer tub 5 by setting the slider 15. A handle 12 is fixedly connected to one side of the fixing block 14, and the other side of the fixing block 14 has an arc-shaped structure and fits against the outer wall of the outer tub 5. This structure makes it easier to operate the fixing block 14 by setting the handle 12. A water inlet pipe 4 is fixedly connected to one side of the outer tub 5, and a cover 1 is fixedly connected to the top of the outer tub 5. A water outlet pipe 3 is fixedly connected to the top of the cover 1. The end is connected to the top of the filter element 8. The cover 1 of this structure is fixedly connected to the outer barrel 5 by bolts. The water outlet pipe 3 is connected to the cover 1 by a flange. One end of the water outlet pipe 3 is connected to the water pump. Valves (not shown in the figure) are installed on both the water inlet pipe 4 and the water outlet pipe 3. During the sewage discharge process, the valves of the water inlet pipe 4 and the water outlet pipe 3 are in the closed state. There is water inside the outer barrel 5. A sliding groove is opened on the outer wall of the outer barrel 5. A fixing block 14 is set inside the sliding groove. A second strong magnet 13 is embedded in the fixing block 14. A fixing ring 10 is fitted on the outer wall of the filter element 8. The fixing ring 10 and the scraper 9 are both annular structures. Multiple scraper 9s are distributed longitudinally at equal intervals around the inner wall of the fixing ring 10. This structure is... Multiple scrapers 9 can improve the effect of scraping impurities from the surface of the filter element 8. By setting the scraper 9 with a ring structure, the scraper 9 can clean impurities more thoroughly and avoid omissions. The scraper 9 is fixedly connected to the inner wall of the fixing ring 10 and is attached to the surface of the filter element 8. The outer wall of the fixing ring 10 is embedded with a first strong magnet 11. The first strong magnet 11 and the second strong magnet 13 have opposite polarities and are magnetically attracted to each other. The scraper 9 and the filter element 8 are slidably connected. The bottom of the outer barrel 5 is connected to a drain pipe 7, and a drain valve 6 is set on the drain pipe 7. By opening it, impurities and sewage can be discharged smoothly.

[0023] Working principle: When using the pre-filter drain structure of this swimming pool, if it is necessary to discharge impurities inside the outer tank 5, first close the valves on the inlet pipe 4 and the outlet pipe 3. At this time, the outer tank 5 is filled with water. Then, hold the handle 12 on the outer wall of the outer tank 5 and push the handle 12 downwards. This will cause the handle 12 to drive the fixing block 14 to slide downwards in the groove on the outer wall of the outer tank 5. When the fixing block 14 slides, it will drive the fixing ring 10 to move synchronously under the action of the second strong magnet 13 and the first strong magnet 11. This will cause the scraper 9 on the inner side of the fixing ring 10 to push and scrape the impurities on the outer wall of the filter element 8 downwards, causing the impurities to fall into the water. When the fixing ring 10 and the scraper 9 are pushed to the bottom of the filter element 8, open the drain valve 6 to discharge the impurities and sewage from the drain pipe 7. Then, push the handle 12 upwards to reset the fixing block 14, the scraper 9, and the fixing ring 10.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A swimming pool pre-filter blowdown structure, comprising an outer barrel (5), the inner part of the outer barrel (5) is provided with a filter core (8), characterized in that: The outer barrel (5) has a groove on its outer wall. A fixing block (14) is provided inside the groove. A second strong magnet (13) is embedded in the fixing block (14). A fixing ring (10) is fitted on the outer wall of the filter element (8). A scraper (9) is fixedly connected to the inner wall of the fixing ring (10). The scraper (9) is attached to the surface of the filter element (8). A first strong magnet (11) is embedded in the outer wall of the fixing ring (10). The first strong magnet (11) and the second strong magnet (13) are magnetically attracted to each other. The scraper (9) and the filter element (8) are slidably connected. A drain pipe (7) is connected to the bottom of the outer barrel (5). A drain valve (6) is provided on the drain pipe (7).

2. A pool pre-filter waste structure according to claim 1, wherein: The outer wall of the outer barrel (5) is provided with multiple sliding grooves, and a fixing block (14) is inserted into each of the multiple sliding grooves. The two ends of the multiple sliding grooves are provided with grooves.

3. A pool pre-filter waste structure according to claim 1, wherein: The outer wall of the fixed block (14) is fixedly connected to a slider (15), which is inserted into the groove of the inner wall of the outer barrel (5). The slider (15) matches the groove structure of the inner wall of the outer barrel (5).

4. A pool pre-filter waste structure according to claim 1, wherein: One side of the fixing block (14) is fixedly connected to a handle (12), and the other side of the fixing block (14) has an arc-shaped structure. The other side of the fixing block (14) is attached to the outer wall of the outer barrel (5).

5. A pool pre-filter waste structure according to claim 1, wherein: Both the fixing ring (10) and the scraper (9) are annular structures, and multiple scrapers (9) are distributed longitudinally at equal intervals about the inner wall of the fixing ring (10).

6. A pool pre-filter waste structure according to claim 1, wherein: The outer walls of the filter element (8) and the water outlet pipe (3) are provided with sealing rings (2), which are located at the gaps where the cover (1) connects to the filter element (8) and the water outlet pipe (3).

7. A pool pre-filter waste structure according to claim 1, wherein: A water inlet pipe (4) is fixedly connected to one side of the outer barrel (5), a cover (1) is fixedly connected to the top of the outer barrel (5), a water outlet pipe (3) is fixedly connected to the top of the cover (1), and one end of the water outlet pipe (3) is connected to the top of the filter element (8).

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