Integrated sand filter shell structure
By designing a pump mounting cavity and a robust connection structure within the integrated sand filter, the problems of mud and sand adhesion and unstable connection in the pump are solved, thus achieving pump protection and stable operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG BAISHILE TECH DEV CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-19
AI Technical Summary
In existing integrated sand filters, the water pump is prone to accumulating mud and sand, which can damage the motor. Furthermore, the connection between the base and the sand filter cartridge is unstable and prone to misalignment.
An integrated sand filter housing structure was designed, in which the water pump is installed in the water pump mounting cavity formed by the support plate and the base plate. The support plate and the base plate are provided with heat dissipation holes. The base and the sand filter cylinder are fixed by the boss and the annular groove to ensure connection stability. The base side wall is provided with heat dissipation groove.
It protects the water pump from sediment adhesion, extends its service life, and improves connection stability and heat dissipation, preventing misalignment caused by vibration.
Smart Images

Figure CN224252334U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sand filter technology, specifically to an integrated sand filter shell structure. Background Technology
[0002] A sand filter is a filtration device used to remove organic impurities from water. With the improvement of people's living standards, outdoor swimming pool water generally needs to be filtered with sand before use. As a small and portable device, the sand filter is particularly suitable for filtering outdoor swimming pool water.
[0003] In current integrated sand filters, the water pump is typically bolted to the bottom of the sand filter cartridge, which is then supported by a base. Because the water pump is directly exposed inside the base, it is prone to accumulating sediment, requiring cleaning, which is inconvenient. Furthermore, improper cleaning can easily damage the motor. In addition, the connection between the base and the sand filter cartridge in traditional integrated sand filter housings may be unstable, and the vibration generated during water pump operation can easily cause misalignment between the base and the sand filter cartridge. Therefore, there is an urgent need for an improved technology to solve this problem in the existing technology. Utility Model Content
[0004] The purpose of this invention is to provide an integrated sand filter housing structure to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated sand filter housing structure, including a sand filter cylinder, a base, and a cover plate. The bottom of the sand filter cylinder is connected to the base, and a cover plate is provided at the top of the sand filter cylinder. An upper cover is provided at the middle position of the upper surface of the cover plate. A support plate is provided inside the base, and a lower pump body mounting groove is provided on the upper surface of the support plate. A bottom plate is provided on the lower surface of the sand filter cylinder, and an upper pump body mounting groove is provided on the lower surface of the bottom plate. The upper and lower pump body mounting grooves cooperate with each other to form a water pump mounting cavity. An annular groove is provided on the outer periphery of the upper surface of the base. A boss is provided on the outer periphery of the bottom of the sand filter cylinder 1, and the boss cooperates with the annular groove. Two rows of heat dissipation holes are provided on the support plate, and the two rows of heat dissipation holes are obliquely arranged and in opposite directions. Several heat dissipation channels are provided on the side wall of the base.
[0006] Preferably, the present invention provides an integrated sand filter housing structure, wherein the base and the support plate are an integral structure.
[0007] Preferably, the present invention provides an integrated sand filter housing structure, wherein the sand filter cylinder and the base plate are an integral structure.
[0008] Preferably, the present invention provides an integrated sand filter housing structure, wherein the support plate is provided with a plurality of connecting seats, and the lower surface of the base plate is provided with a plurality of internal thread seats, wherein the internal thread seats correspond one-to-one with the connecting seats and are connected by screws.
[0009] Preferably, the present invention provides an integrated sand filter housing structure, wherein the top of the sand filter cylinder is connected to the cover plate by two semi-annular clamps.
[0010] Preferably, the present invention provides an integrated sand filter housing structure, wherein a connecting cylinder is provided in the middle of the cover plate, and water inlets and backflushing ports are provided on both sides of the connecting cylinder. A first filter plate is provided at the lower end of the cover plate and the connecting cylinder. The upper cover is connected to the top of the connecting cylinder, and the interior of the connecting cylinder is also connected to the top of the water outlet pipe. A water outlet is provided on one side of the upper cover, and the water outlet is connected to the water outlet pipe through the inner cavity of the upper cover. The water outlet pipe passes through the first filter plate and a second filter plate with a central arch is provided at the bottom. The outer periphery of the second filter plate is in close contact with the upper surface of the bottom plate.
[0011] Preferably, the integrated sand filter housing structure provided by this utility model includes a base with several recessed fixing platforms.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] (1) The base plate is provided with a lower pump body mounting groove, and the bottom plate of the sand filter cylinder is provided with an upper pump body mounting groove. The water pump can be enclosed in the water pump mounting cavity formed by the upper and lower pump body mounting grooves through the base plate and the bottom plate. This structure can protect the motor part of the water pump, thereby preventing the water pump from adhering to mud and sand and improving the service life of the water pump.
[0014] (2) The support plate has two rows of opposite and obliquely arranged heat dissipation holes, while the side wall of the base has several heat dissipation grooves, so as to ensure the heat dissipation effect when the water pump is running.
[0015] (3) The bottom of the sand filter cartridge is engaged with the annular groove on the upper surface of the base through a boss, thereby ensuring the connection stability between the sand filter cartridge and the base. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the base structure;
[0018] Figure 3 This is a schematic diagram of a sand filter cartridge structure;
[0019] Figure 4This is a front view structural diagram of the present invention;
[0020] Figure 5 For the appendix Figure 4 Schematic diagram of the cross-sectional structure at point AA;
[0021] Figure 6 This is a schematic diagram of the structure of the present invention located at the top cover;
[0022] Figure 7 This is a schematic diagram showing the positional relationship between the base and the water pump.
[0023] In the diagram: 1. Sand filter cartridge; 2. Base; 3. Cover plate; 4. Top cover; 5. Support plate; 6. Lower pump body mounting groove; 7. Base plate; 8. Upper pump body mounting groove; 9. Annular groove; 10. Boss; 11. Heat dissipation hole; 12. Heat dissipation channel; 13. Connecting seat; 14. Threaded seat; 15. Semi-annular clamp; 16. Connecting cylinder; 17. Water inlet; 18. Backflush port; 19. First filter plate; 20. Water outlet pipe; 21. Water outlet; 22. Second filter plate; 23. Recessed fixing platform; 24. Water pump. Detailed Implementation
[0024] The technical solution of this 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 this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0025] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] Please see Figure 1-6This utility model provides a technical solution: an integrated sand filter shell structure, including a sand filter cylinder 1, a base 2, and a cover plate 3. The bottom of the sand filter cylinder 1 is connected to the base 2. A support plate 5 is provided with several connecting seats 13. The lower surface of the base plate 7 is provided with several internal thread seats 14. The internal thread seats 14 correspond one-to-one with the connecting seats 13 and are connected by screws. This structure realizes the connection between the sand filter cylinder 1 and the base 2. The top of the sand filter cylinder 1 is provided with a cover plate 3, and the top of the sand filter cylinder 1 is connected to the cover plate 3 by two semi-annular clamps 15. The middle position of the upper surface of the cover plate 3 is provided with an upper cover 4. The base 2 is provided with a support plate 5 inside. The base 2 and the support plate 5 are an integral structure to ensure the structural strength of the support plate 5 and facilitate processing. The upper surface of the support plate 5 is provided with a lower pump body mounting groove 6. The lower surface of the sand filter cylinder 1 is provided with a bottom... The base plate 7, sand filter cylinder 1, and base plate 7 are integrated to ensure the structural strength of the base plate 7 and facilitate processing. The lower surface of the base plate 7 has an upper pump body mounting groove 8. The upper pump body mounting groove 8 and the lower pump body mounting groove 6 cooperate to form a water pump mounting cavity. A water pump 24 is installed in the water pump mounting cavity formed by the lower pump body mounting groove 6 and the upper pump body mounting groove 8. The water pump 24 is installed between the base 2 and the sand filter cylinder 1, thus achieving integrated installation. The outer periphery of the upper surface of the base has an annular groove 9. The outer periphery of the bottom of the sand filter cylinder 1 has a boss 10. The boss 10 cooperates with the annular groove 9. The support plate 5 has two rows of heat dissipation holes 11. The two rows of heat dissipation holes 11 are obliquely arranged and in opposite directions. The side wall of the base 2 has several heat dissipation channels 12. The base 2 also has several recessed fixing platforms 23, which are used to achieve overall fixed installation through the cooperation of bolts.
[0027] A connecting cylinder 16 is provided in the middle of the cover plate 3. Inlet 17 and backwash port 18 are provided on both sides of the connecting cylinder 16. A first filter plate 19 is provided at the lower end of the cover plate 3 and the connecting cylinder 16. The upper cover 4 is connected to the top of the connecting cylinder 16. The inside of the connecting cylinder 16 is also connected to the top of the outlet pipe 20. An outlet 21 is provided on one side of the upper cover 4. The outlet 21 is connected to the outlet pipe 20 through the inner cavity of the upper cover 4. The outlet pipe 20 passes through the first filter plate 19 and has a second filter plate 22 with a central arch at the bottom. The outer periphery of the second filter plate 22 is in close contact with the upper surface of the bottom plate. After the water enters the sand filter cylinder 1 from the inlet 17, it is filtered by the first filter plate 19 and the connecting filter plate 20, enters the inner cavity of the upper cover 4 through the outlet pipe 20, and is discharged from the outlet 21, thereby realizing sand filtration.
[0028] Assembly method and operating principle: First, the sand filter cartridge 1, base 2, and cover plate 3 are obtained through injection molding. Then, the water pump 24 is installed in the pump body mounting groove 6 at the lower end of the support plate 5 using bolts. Figure 7As shown, the bottom of the sand filter cartridge 1 is then connected to the base 2. At this time, the upper end of the water pump 24 is located in the upper pump body mounting groove 8 of the base plate 7. The screws are passed through the connecting seat 13 and fastened to the internal thread seat 14 to complete the connection between the base 2 and the sand filter cartridge 1, and at the same time, the water pump 24 is fixed. The first filter plate 19 is put on the water outlet pipe 20 and installed in the middle position of the cover plate 3 with screws. The second filter plate 22 is connected to the bottom of the water outlet pipe 20. Finally, the upper cover 4 is connected to the top of the connecting cylinder 16 with bolts and nuts. The water outlet pipe 20 and the second filter plate 22 are inserted into the sand filter cartridge 1, and the cover plate 3 and the sand filter cartridge 1 are connected by two semi-circular clamps 15 to complete the assembly. During operation, the outlet of the water pump 24 is connected to the inlet 17 on one side of the connecting cylinder 16 via a hose. Water from the pool is drawn out by the water pump 24 and enters the sand filter cylinder 1 through the inlet 17. After being filtered by the first and second filter screens, the water rises from the outlet 21 and enters the upper cover 4, finally exiting from the outlet 21. It should be noted that the upper cover 4 is equipped with a switch; during sand filtration, the backwash port 18 is closed. This utility model has a reasonable structure. The support plate 5 of the base 2 is provided with a lower pump body mounting groove 6, and the bottom plate 7 of the sand filter cylinder 1 is provided with an upper pump body mounting groove 8. The water pump 24 can be installed in the water pump mounting cavity 9 formed by the upper pump body mounting groove 8 and the lower pump body mounting groove 6 through the support plate 5 and the bottom plate 7. This structure can protect the motor part of the water pump 24, thereby preventing the water pump 24 from adhering to mud and sand, and improving the service life of the water pump 24. In addition, the support plate 5 is provided with two rows of opposite and obliquely arranged heat dissipation holes 11, and the side wall of the base 2 is provided with several heat dissipation channels 12, thereby ensuring the heat dissipation effect of the water pump 24 during operation. The bottom of the sand filter cylinder 1 is engaged with the annular groove 9 on the upper surface of the base 2 through the boss 10, thereby ensuring the connection stability between the sand filter cylinder 1 and the base 2.
[0029] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.
[0030] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.
Claims
1. An integrated sand filter housing structure, characterized by: The system includes a sand filter cartridge (1), a base (2), and a cover plate (3). The bottom of the sand filter cartridge (1) is connected to the base (2). The top of the sand filter cartridge (1) is provided with a cover plate (3). An upper cover (4) is provided in the middle of the upper surface of the cover plate (3). A support plate (5) is provided inside the base (2). A lower pump body mounting groove (6) is provided on the upper surface of the support plate (5). A bottom plate (7) is provided on the lower surface of the sand filter cartridge (1). An upper pump body mounting groove (8) is opened on the lower surface of the bottom plate (7). The upper pump body mounting groove (8) and the lower pump body mounting groove (6) cooperate with each other to form a water pump mounting cavity. The outer periphery of the upper surface of the base (2) is provided with an annular groove (9). The outer periphery of the bottom of the sand filter cylinder (1) is provided with a boss (10). The boss (10) cooperates with the annular groove (9). The support plate (5) is provided with two rows of heat dissipation holes (11). The two rows of heat dissipation holes (11) are obliquely arranged and in opposite directions. The side wall of the base (2) is provided with several heat dissipation channels (12).
2. An integrated sand filter housing structure according to claim 1, characterized in that: The base (2) and the support plate (5) are an integral structure.
3. An integrated sand filter housing structure according to claim 1, characterized in that: The sand filter cylinder (1) and the bottom plate (7) are an integral structure.
4. The one-piece sand filter housing structure of claim 1, wherein: The pallet (5) is provided with several connecting seats (13), and the lower surface of the base plate (7) is provided with several internal thread seats (14). The internal thread seats (14) correspond one-to-one with the connecting seats (13) and are connected by screws.
5. The one-piece sand filter housing structure of claim 1, wherein: The top of the sand filter cylinder (1) is connected to the cover plate (3) by two semi-annular clamps (15).
6. An integrated sand filter housing structure according to claim 1, characterized in that: A connecting cylinder (16) is provided in the middle of the cover plate (3). A water inlet (17) and a backflushing port (18) are provided on both sides of the connecting cylinder (16). A first filter plate (19) is provided at the lower end of the cover plate (3) and the connecting cylinder (16). The upper cover (4) is connected to the top of the connecting cylinder (16). The inside of the connecting cylinder (16) is also connected to the top of the water outlet pipe (20). A water outlet (21) is provided on one side of the upper cover (4). The water outlet (21) is connected to the water outlet pipe (20) through the inner cavity of the upper cover (4). The water outlet pipe (20) passes through the first filter plate (19) and a second filter plate (22) with a central arch is provided at the bottom. The outer periphery of the second filter plate (22) is in close contact with the upper surface of the bottom plate (7).
7. An integrated sand filter housing structure according to claim 1, characterized in that: The base (2) is also provided with several recessed fixing platforms (23).