Filter screen structure of circulating pump

Abstract

The utility model discloses a filter screen structure of a circulating pump, which relates to the technical field of circulating pumps and comprises a filter box, a water inlet pipeline and a water outlet pipeline are arranged on two sides of the filter box, the circulating pump is arranged at the water outlet end of the water outlet pipeline, a filter screen is arranged in the filter box, a scraper is arranged on the filter surface of the filter screen, and one side of the scraper is in contact with the filter surface of the filter screen. A screw rod is arranged at one end of the scraping plate, a servo motor is arranged at the upper end of the screw rod, a dirt collecting box is arranged on the bottom end face of the filtering box, a rectangular opening is formed in the inner bottom face of the filtering box, a sealing block is arranged in the rectangular opening and can do reciprocating linear motion in the horizontal direction, and a dirt discharging pipeline is arranged in the middle of the bottom end of the dirt collecting box; impurities in water are filtered through the filter screen, then the impurities on the surface of the filter screen are scraped off through the scraping plate, the smoothness of the filter screen is guaranteed, finally the rectangular opening is sealed through the sealing block, the collected impurities are discharged through the blow-off pipeline, and normal work of the circulating pump is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of circulating pumps, in particular to a filter screen structure of a circulating pump. Background Art

[0002] A circulating pump is a pump used to transport circulating liquid for reaction, absorption, separation, and absorption liquid regeneration in a device. Circulating pumps are mainly divided into two categories: household circulating pumps and industrial circulating pumps. They are used to circulate water in a system to maintain stable pressure and temperature in the system.

[0003] Existing circulation pumps are usually equipped with one or more layers of filter screens for filtration. Impurities filtered by the filter screens will adhere to the filter surface of the filter screen, resulting in poor filtration. In addition, the circulation pump needs to be stopped during cleaning, affecting the normal operation of the circulation pump.

[0004] In view of the above problems, the utility model provides a filter screen structure for a circulation pump. Utility Model Content

[0005] The purpose of the utility model is to provide a filter structure for a circulation pump, which filters impurities in water through the filter, and then scrapes off the impurities on the surface of the filter through a scraper to ensure the smoothness of the filter, and finally closes the rectangular opening through a sealing block, and uses a sewage pipe to discharge the collected impurities, which is convenient for cleaning the impurities, does not affect the normal operation of the circulation pump, improves the working efficiency, and thus solves the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filter screen structure of a circulating pump, comprising a filter box, water inlet pipes and water outlet pipes are arranged on both sides of the filter box, a circulating pump is arranged at the water outlet end of the outlet pipe, a filter screen is arranged inside the filter box, a scraper is arranged on the filtering surface of the filter screen, one side of the scraper contacts the filtering surface of the filter screen, a screw rod is arranged at one end of the scraper, a servo motor is arranged at the upper end of the screw rod, a dirt collecting box is arranged on the bottom end surface of the filter box, a rectangular opening is opened on the inner bottom surface of the filter box, a sealing block is arranged inside the rectangular opening, the sealing block can perform reciprocating linear motion in the horizontal direction, and a sewage discharge pipe is arranged in the middle of the bottom end of the dirt collecting box.

[0007] Furthermore, a U-shaped groove is provided on the inner wall of the filter box, and a rectangular frame is provided inside the U-shaped groove. The rectangular frame can slide along the inner wall of the U-shaped groove. Installation grooves are provided on both sides of the rectangular frame, and a number of evenly distributed screws are threadedly connected inside the installation groove. The filter screen is fixed to the inside of the installation groove by screws.

[0008] Furthermore, mutually symmetrical slide grooves are opened on the inner walls of both sides of the filter box, and sliders are fixedly connected to the two ends of the scraper. The sliders are slidably connected to the inner walls of the slide grooves. The two ends of the screw rod are rotatably connected to the inner walls of the two ends of the slide grooves through bearings. The screw rod is threadedly connected to the sliders, and one end of the screw rod extends upward to the upper end of the filter box and is fixedly connected to the output end of the servo motor.

[0009] Furthermore, an observation port is opened above the filter screen, a cover plate is provided above the observation port, a sealing gasket is fixedly connected between the cover plate and the observation port sealing portion, and fixing bolts are threadedly connected at the four corners of the cover plate.

[0010] Furthermore, a rectangular groove is provided inside the bottom end of the filter box, and the sealing block is slidably connected inside the rectangular groove. The sealing block can close the rectangular opening, and a threaded hole is provided in the middle of the inner wall of the rectangular groove near the water inlet pipe. A threaded rod is threadedly connected inside the threaded hole, and one end of the threaded rod is rotatably connected to the middle of the side of the sealing block through a bearing, and the end of the threaded rod away from the sealing block extends to the outside of the filter box and is fixedly connected to a handwheel.

[0011] Furthermore, a valve is fixedly installed in the middle of the sewage pipe.

[0012] Furthermore, a sealing layer is fixedly attached to the inner wall of the rectangular groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] The utility model provides a filter screen structure of a circulation pump, first, the water inlet pipe is fixedly connected to the water inlet pipe, and the water outlet pipe is fixedly connected to the water inlet end of the circulation pump, and the circulation pump is started. The water passing through the filter box will be filtered by the filter screen, which can effectively filter out impurities in the water, and then the servo motor is started, and the output end of the servo motor rotates to drive the rotation of the screw rod, and the rotation of the screw rod drives the slider to perform reciprocating linear motion in the vertical direction, so that the scraper performs reciprocating motion in the vertical direction to scrape impurities on the surface of the filter screen, ensuring the smoothness of the filter screen, and the scraped impurities will fall from the rectangular opening to the inside of the dirt collecting box. After filtering for a period of time, the staff manually turns the handwheel to drive the threaded rod to rotate, and the threaded rod rotates inside the threaded hole, and then drives the sealing block to slide inside the rectangular groove, thereby realizing the closure of the rectangular opening, and then opens the valve to discharge the collected impurities from the sewage pipe, which is convenient for cleaning the impurities, does not affect the normal operation of the circulation pump, and improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the sewage pipe in the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the filter box in the present utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the observation port in the present utility model;

[0019] Figure 5 This is a schematic structural diagram of the sealing block in the present invention;

[0020] Figure 6 This is a schematic structural diagram of the sealing gasket in the present invention;

[0021] Figure 7 It is a structural schematic diagram of the filter screen in this utility model.

[0022] In the figure: 1. Filter box; 2. Water inlet pipe; 3. Water outlet pipe; 4. Circulation pump; 5. Observation port; 6. Cover plate; 7. Sealing gasket; 8. Fixing bolt; 9. Servo motor; 10. U-shaped groove; 11. Rectangular frame; 12. Mounting slot; 13. Filter screen; 14. Screw; 15. Slide; 16. Slider; 17. Scraper; 18. Screw; 19. Rectangular opening; 20. Rectangular groove; 21. Sealing layer; 22. Sealing block; 23. Threaded hole; 24. Threaded rod; 25. Handwheel; 26. Dirt collecting box; 27. Drain pipe; 28. Valve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in 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.

[0024] In order to solve the technical problems that the existing circulation pump is usually equipped with one or more layers of filter screens for filtration, the impurities filtered by the filter screen will adhere to the filter surface of the filter screen, resulting in poor filtration of the filter screen, and the circulation pump needs to be stopped during cleaning, affecting the normal operation of the circulation pump, such as Figure 1-7 As shown, the following preferred technical solutions are provided:

[0025] A filter screen structure for a circulation pump includes a filter box 1, with water inlet pipes 2 and water outlet pipes 3 provided on both sides of the filter box 1, a circulation pump 4 provided at the water outlet end of the outlet pipe 3, a filter screen 13 provided inside the filter box 1, a filtering surface of the filter screen 13 provided with a scraper 17, one side of the scraper 17 contacts the filtering surface of the filter screen 13, a screw rod 18 provided at one end of the scraper 17, a servo motor 9 provided at the upper end of the screw rod 18, a dirt collecting box 26 provided at the bottom end surface of the filter box 1, a rectangular opening 19 provided on the inner bottom surface of the filter box 1, a sealing block 22 provided inside the rectangular opening 19, the sealing block 22 can make reciprocating linear motion in the horizontal direction, and a sewage discharge pipe 27 provided at the middle part of the bottom end of the dirt collecting box 26.

[0026] Specifically, first, the water inlet pipe 2 is fixedly connected to the water inlet pipe, and the water outlet pipe 3 is fixedly connected to the water inlet end of the circulation pump 4. The circulation pump 4 is started, and the water passing through the filter box 1 will be filtered by the filter screen 13, which can effectively filter out impurities in the water. Then, the servo motor 9 is started, and the output end of the servo motor 9 drives the screw rod 18 to rotate. The rotation of the screw rod 18 drives the scraper 17 to make a reciprocating linear motion in the vertical direction to scrape off the impurities on the surface of the filter screen 13, ensuring the smoothness of the filter screen 13. The scraped impurities will fall from the rectangular opening 19 to the inside of the dirt collecting box 26. When the filtration is completed, the impurities will be removed. After a while, the staff manually moves the sealing block 22 in the horizontal direction to close the rectangular opening 19, and then discharges the collected impurities from the sewage pipe 27 without affecting the normal operation of the circulation pump 4. The purpose of this design is to filter the impurities in the water through the filter screen 13, and then use the scraper 17 to scrape off the impurities on the surface of the filter screen 13 to ensure the smoothness of the filter screen 13. Finally, the rectangular opening 19 is closed by the sealing block 22, and the collected impurities are discharged through the sewage pipe 27, which facilitates the cleaning of impurities, does not affect the normal operation of the circulation pump 4, and improves work efficiency.

[0027] Further, such as Figure 3 and Figure 7 As shown, the following preferred technical solutions are provided:

[0028] A U-shaped groove 10 is provided on the inner wall of the filter box 1, and a rectangular frame 11 is provided inside the U-shaped groove 10. The rectangular frame 11 can slide along the inner wall of the U-shaped groove 10. Mounting grooves 12 are provided on both sides of the rectangular frame 11. Several evenly distributed screws 14 are threadedly connected to the inside of the mounting groove 12. The filter screen 13 is fixedly connected to the inside of the mounting groove 12 by the screws 14. The purpose of this design is to facilitate the fixing of the filter screen 13 on the rectangular frame 11 by the screws 14, and then by sliding the rectangular frame 11 in the U-shaped groove 10, it is convenient to place the filter screen 13 inside the filter box 1, thereby facilitating the maintenance and replacement of the filter screen 13.

[0029] Further, such as Figure 1 and Figure 3As shown, the following preferred technical solutions are provided:

[0030] Symmetrical slides 15 are provided on the inner walls of both sides of the filter box 1, and sliders 16 are fixedly connected at both ends of the scraper 17. The sliders 16 are slidably connected to the inner walls of the slides 15, and the two ends of the screw rod 18 are rotatably connected to the inner walls of the two ends of the slide 15 through bearings. The screw rod 18 is threadedly connected to the slider 16, and one end of the screw rod 18 extends upward to the upper end of the filter box 1 and is fixedly connected to the output end of the servo motor 9. The purpose of this design is to drive the rotation of the screw rod 18 by the rotation of the output end of the servo motor 9, and the rotation of the screw rod 18 drives the slider 16 to perform reciprocating linear motion in the vertical direction, so that the scraper 17 can perform reciprocating motion in the vertical direction to scrape off impurities on the surface of the filter screen 13, thereby ensuring the smoothness of the filter screen 13.

[0031] Further, such as Figure 4 and Figure 6 As shown, the following preferred technical solutions are provided:

[0032] An observation port 5 is provided above the filter 13, and a cover plate 6 is provided above the observation port 5. A sealing gasket 7 is fixedly connected to the sealing portion between the cover plate 6 and the observation port 5, and fixing bolts 8 are threadedly connected to the four corners of the cover plate 6. The purpose of this design is to enable the filter 13 to be replaced through the observation port 5. The cover plate 6 can close the observation port 5, and the sealing gasket 7 can ensure sealing to prevent water from flowing out of the observation port 5.

[0033] Further, such as Figure 2 and Figure 5 As shown, the following preferred technical solutions are provided:

[0034] A rectangular groove 20 is provided inside the bottom end of the filter box 1, and a sealing block 22 is slidably connected inside the rectangular groove 20. The sealing block 22 can close the rectangular opening 19. A threaded hole 23 is provided in the middle of the inner wall of the rectangular groove 20 near the water inlet pipe 2. A threaded rod 24 is threadedly connected inside the threaded hole 23. One end of the threaded rod 24 is rotatably connected to the middle of the side of the sealing block 22 through a bearing, and the end of the threaded rod 24 away from the sealing block 22 extends to the outside of the filter box 1 and is fixedly connected to a handwheel 25. The purpose of this design is to drive the threaded rod 24 to rotate by rotating the handwheel 25, and the threaded rod 24 rotates inside the threaded hole 23, thereby driving the sealing block 22 to slide inside the rectangular groove 20, thereby achieving the closure of the rectangular opening 19.

[0035] Further, such as Figure 2 As shown, the following preferred technical solutions are provided:

[0036] A valve 28 is fixedly installed in the middle of the sewage pipe 27. The purpose of this design is to realize the opening and closing of the sewage pipe 27 through the valve 28.

[0037] Further, such as Figure 5 As shown, the following preferred technical solutions are provided:

[0038] A sealing layer 21 is fixedly attached to the inner wall of the rectangular groove 20 . The purpose of this design is to ensure the sealing between the sealing block 22 and the rectangular groove 20 through the sealing layer 21 .

[0039] To sum up: first, the water inlet pipe 2 is fixedly connected to the water inlet pipe, and the water outlet pipe 3 is fixedly connected to the water inlet end of the circulation pump 4. The circulation pump 4 is started, and the water passing through the filter box 1 will be filtered by the filter screen 13, which can effectively filter out impurities in the water. Then the servo motor 9 is started, and the output end of the servo motor 9 rotates to drive the rotation of the screw rod 18. The rotation of the screw rod 18 drives the slider 16 to perform reciprocating linear motion in the vertical direction, thereby realizing the scraper 17 to perform reciprocating motion in the vertical direction to scrape the impurities on the surface of the filter screen 13, ensuring the smoothness of the filter screen 13. The scraped impurities will fall from the rectangular opening 19 to the inside of the dirt collecting box 26. After filtering for a period of time, the staff manually rotates the handwheel 25 to drive the threaded rod 24 to rotate, and the threaded rod 24 rotates inside the threaded hole 23, thereby driving the sealing block 22 to slide inside the rectangular groove 20, thereby achieving the closing of the rectangular opening 19, and then opening the valve 28 to discharge the collected impurities from the sewage pipe 27, which is convenient for cleaning impurities, does not affect the normal operation of the circulation pump 4, and improves work efficiency.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter screen structure for a circulating pump, comprising a filter box (1), characterized in that: Water inlet pipes (2) and water outlet pipes (3) are provided on both sides of the filter box (1), and a circulating pump (4) is provided at the water outlet end of the water outlet pipe (3). A filter screen (13) is provided inside the filter box (1), and a scraper (17) is provided on the filtering surface of the filter screen (13). One side of the scraper (17) contacts the filtering surface of the filter screen (13). A screw rod (18) is provided at one end of the scraper (17), and a servo motor (9) is provided at the upper end of the screw rod (18). A dirt collecting box (26) is provided at the bottom end surface of the filter box (1), and a rectangular opening (19) is provided on the inner bottom surface of the filter box (1). A sealing block (22) is provided inside the rectangular opening (19), and the sealing block (22) can perform reciprocating linear motion in the horizontal direction. A sewage discharge pipe (27) is provided at the middle part of the bottom end of the dirt collecting box (26).

2. The filter screen structure of a circulating pump according to claim 1, characterized in that: The inner wall of the filter box (1) is provided with a U-shaped groove (10), and a rectangular frame (11) is provided inside the U-shaped groove (10). The rectangular frame (11) can slide along the inner wall of the U-shaped groove (10), and mounting grooves (12) are provided on both sides of the rectangular frame (11). The mounting groove (12) is internally threaded with a plurality of evenly distributed screws (14), and the filter screen (13) is fixedly connected to the inside of the mounting groove (12) by the screws (14).

3. The filter screen structure of a circulating pump according to claim 1, characterized in that: The inner walls of both sides of the filter box (1) are provided with symmetrical chute grooves (15), and the two ends of the scraper (17) are fixedly connected with sliders (16), and the sliders (16) are slidably connected to the inner walls of the chute groove (15). The two ends of the screw rod (18) are rotatably connected to the inner walls of the two ends of the chute groove (15) through bearings. The screw rod (18) is threadedly connected to the sliders (16), and one end of the screw rod (18) extends upward to the upper end of the filter box (1) and is fixedly connected to the output end of the servo motor (9).

4. The filter screen structure of a circulating pump according to claim 1, characterized in that: An observation port (5) is provided above the filter screen (13), a cover plate (6) is provided above the observation port (5), a sealing gasket (7) is fixedly connected to the sealing portion between the cover plate (6) and the observation port (5), and fixing bolts (8) are threadedly connected to the four corners of the cover plate (6).

5. The filter screen structure of a circulating pump according to claim 1, characterized in that: A rectangular groove (20) is provided inside the bottom end of the filter box (1), and a sealing block (22) is slidably connected inside the rectangular groove (20). The sealing block (22) can close the rectangular opening (19). A threaded hole (23) is provided in the middle of the inner wall of the rectangular groove (20) near the water inlet pipe (2). A threaded rod (24) is threadedly connected inside the threaded hole (23). One end of the threaded rod (24) is rotatably connected to the middle of the side of the sealing block (22) through a bearing. The end of the threaded rod (24) away from the sealing block (22) extends to the outside of the filter box (1) and is fixedly connected to a hand wheel (25).

6. The filter screen structure of a circulating pump according to claim 1, characterized in that: A valve (28) is fixedly installed in the middle of the sewage pipe (27).

7. The filter screen structure of a circulation pump according to claim 5, characterized in that: A sealing layer (21) is fixedly attached to the inner wall of the rectangular groove (20).

Images