Secondary water supply device
By designing a limiting structure and locking device in the secondary water supply equipment, the filter can be easily disassembled and installed, solving the problem of inconvenient cleaning and replacement of the filter screen and improving the maintenance efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG HACH PUMP VALVE PIPE CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-05-29
AI Technical Summary
The existing secondary water supply equipment has a filtration mechanism that is not easy to disassemble and maintain, making it inconvenient to clean and replace the filter screen.
A secondary water supply device including a No. 1 filter and a No. 2 filter was designed. The rear side of the filter is connected to a sealing cap by a fixing bolt. The inner side wall is provided with a limiting structure and a locking device to facilitate the disassembly and installation of the filter screen.
It enables convenient disassembly and installation of the filter screen, improving the maintenance efficiency of the equipment.
Smart Images

Figure CN224300094U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of secondary water supply, specifically to a secondary water supply device. Background Technology
[0002] Secondary water supply refers to a water supply method that stores and pressurizes urban public water supply or self-built facility water supply before supplying it to users or for self-use through pipelines. It is mainly used to solve the water supply problem in high-rise buildings caused by insufficient municipal water supply pressure. A Chinese patent (authorization announcement number CN222435414U) discloses a secondary water supply device. This patented technology features an activated carbon filter screen inside the water inlet box above the water tank. The activated carbon filter screen adsorbs impurities in the tap water, resulting in good filtration performance. An ultraviolet germicidal lamp located on the top of the inner side of the water tank kills bacteria inside the tap water, further enhancing the sterilization performance of the secondary water supply device. However, this design does not allow for convenient disassembly and assembly of the filter mechanism, and it is not ideal for subsequent cleaning and maintenance of the filter screen. Therefore, those skilled in the art have provided a secondary water supply device to solve the problems mentioned in the background art. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a secondary water supply device, including a No. 1 filter, a flow regulator, a pressure gauge, a negative pressure suppressor, a No. 2 filter, a No. 1 delivery pipe, a No. 1 butterfly valve, a water pump, a No. 2 butterfly valve, a No. 2 delivery pipe, a No. 3 butterfly valve, a pressure tank, a check valve, and filter screens. The flow regulator is installed on the left end of the No. 1 filter, the pressure gauge is installed in the middle of the upper end of the flow regulator, and the negative pressure suppressor is installed on the left side of the upper end of the flow regulator. The No. 2 filter is installed on the lower left end of the outflow regulator, the No. 1 delivery pipe is installed on the left end of the No. 2 filter, the No. 1 butterfly valve is installed on the upper end of the No. 1 delivery pipe, the water pump is installed on the upper end of the No. 1 butterfly valve, the No. 2 butterfly valve is installed on the upper end of the water pump, the No. 2 delivery pipe is installed on the upper end of the No. 2 butterfly valve, the pressure tank is installed on the left side of the upper end of the No. 2 delivery pipe, the No. 3 butterfly valve is installed on the lower end of the pressure tank, and the check valve is installed on the right end of the No. 2 delivery pipe. Multiple filter screens are installed inside both the No. 1 and No. 2 filters.
[0004] Preferably, the rear sides of the No. 1 filter and the No. 2 filter are installed with the sealing cover by fixing bolts, and multiple sets of limiting structures are installed on the inner side walls of the No. 1 filter and the No. 2 filter. Each set of limiting structures consists of two limiting plates, and a limiting groove is provided between the two limiting plates.
[0005] Preferably, an insert plate can be inserted into the limiting groove, a backing plate is installed on the front side of the insert plate, and a filter screen is installed on the front side of the backing plate;
[0006] Preferably: a card plate is installed on the front side of the filter screen, and card beads are installed on the left and right side walls of the card plate. A concave handle is installed on the front side wall of the card plate. The card plate can be inserted into the card slot, and the card beads can be inserted into the card hole. The card hole is located on the left and right side walls of the card slot.
[0007] Preferably: a No. 1 connecting pipe is installed at the right end of the upper side wall of the flow regulator, and the No. 1 connecting pipe is connected to the No. 1 connecting pipe; a No. 3 connecting pipe is installed at the left end of the upper side wall of the flow regulator, and the No. 3 connecting pipe is connected to the negative pressure suppressor.
[0008] Preferably, No. 4 connecting pipes are installed at both ends of the lower side wall of the current regulator, and No. 2 connecting pipes are installed at the middle position of the lower side of the current regulator, and No. 2 connecting pipes are connected to No. 2 connecting pipes.
[0009] Preferably: three No. 5 connecting pipes are installed on the upper side wall of the No. 1 conveying pipe, the No. 5 connecting pipes are connected to the No. 3 connecting pipe, the No. 1 butterfly valve is installed on the No. 3 connecting pipe, and the other end of the No. 3 connecting pipe is connected to the water pump.
[0010] Preferably, the other end of the water pump is connected to the No. 4 connecting pipe, the No. 2 butterfly valve is installed on the No. 4 connecting pipe, the other end of the No. 4 connecting pipe is connected to the No. 6 connecting pipe, the No. 6 connecting pipe is installed on the lower side wall of the No. 2 conveying pipe, and the right end of the No. 2 conveying pipe is connected to the No. 3 conveying pipe.
[0011] The technical effects and advantages of this utility model are as follows:
[0012] 1. When it is necessary to replace or clean the filter screens inside the No. 1 and No. 2 filters later, loosen the fixing bolts and remove the sealing cover. Pull the concave handle outwards. The locking beads on both sides of the locking plate will disengage from the locking holes on both sides of the locking groove under force. At this time, the filter screen can be replaced or cleaned. When installation is required, since multiple sets of limiting structures are installed on the inner side walls of the No. 1 and No. 2 filters, each set of limiting structures consists of two limiting plates. There is a limiting groove between the two limiting plates. Simply insert the insert plate into the limiting groove. The operation is simple, disassembly and assembly are convenient, and work efficiency is improved. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a secondary water supply device provided in an embodiment of this application;
[0014] Figure 2 This is a partial structural diagram of a secondary water supply device provided in an embodiment of this application. Figure 1 ;
[0015] Figure 3 This is a partial structural diagram of a secondary water supply device provided in an embodiment of this application. Figure 2 ;
[0016] Figure 4This is a partial exploded structural diagram of a secondary water supply device provided in an embodiment of this application;
[0017] Figure 5 This is a secondary water supply device provided in an embodiment of this application. Figure 4 Enlarged schematic diagram of structure A;
[0018] Figure 6 This is a secondary water supply device provided in an embodiment of this application. Figure 4 An enlarged schematic diagram of the B structure.
[0019] In the diagram: 1. Inlet pipe; 2. Filter No. 1; 3. Connecting pipe No. 1; 4. Flow regulator; 5. Pressure gauge; 6. Negative pressure suppressor; 7. Connecting pipe No. 2; 8. Filter No. 2; 9. Delivery pipe No. 1; 10. Connecting pipe No. 3; 11. Butterfly valve No. 1; 12. Water pump; 13. Connecting pipe No. 4; 14. Butterfly valve No. 2; 15. Delivery pipe No. 2; 16. Butterfly valve No. 3; 17. Pressure tank; 18. Check valve; 19. Delivery pipe No. 3 ; 20. Sealing cap; 21. Fixing bolt; 22. Filter screen; 201. Limiting plate; 202. Limiting groove; 203. Slot; 204. Slot; 401. Connecting pipe No. 1; 402. Connecting pipe No. 2; 403. Connecting pipe No. 3; 404. Connecting pipe No. 4; 901. Connecting pipe No. 5; 1501. Connecting pipe No. 6; 2201. Support plate; 2202. Insert plate; 2203. Locking plate; 2204. Locking bead; 2205. Recessed handle. Detailed Implementation
[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.
[0021] Example: Please refer to Figures 1-6This embodiment provides a secondary water supply device, including a primary filter 2, a flow regulator 4, a pressure gauge 5, a negative pressure suppressor 6, a secondary filter 8, a primary delivery pipe 9, a primary butterfly valve 11, a water pump 12, a secondary butterfly valve 14, a secondary delivery pipe 15, a secondary butterfly valve 16, a pressure tank 17, a check valve 18, and a filter screen 22. The flow regulator 4 is installed on the left end of the primary filter 2, the pressure gauge 5 is installed in the middle of the upper end of the flow regulator 4, the negative pressure suppressor 6 is installed on the left side of the upper end of the flow regulator 4, and the outflow regulator 4... A second filter 8 is installed at the lower left end. A first conveying pipe 9 is installed at the left end of the second filter 8. A first butterfly valve 11 is installed at the upper end of the first conveying pipe 9. A water pump 12 is installed at the upper end of the first butterfly valve 11. A second butterfly valve 14 is installed at the upper end of the water pump 12. A second conveying pipe 15 is installed at the upper end of the second butterfly valve 14. A pressure tank 17 is installed on the left side of the upper end of the second conveying pipe 15. A third butterfly valve 16 is installed at the lower end of the pressure tank 17. A check valve 18 is installed at the right end of the second conveying pipe 15. Multiple filter screens 22 are installed inside both the first filter 2 and the second filter 8.
[0022] Specifically, the rear sides of filter 2 and filter 8 are installed with the sealing cover 20 via fixing bolts 21. Multiple sets of limiting structures are installed on the inner side walls of filter 2 and filter 8. Each set of limiting structures consists of two limiting plates 201. A limiting groove 202 is provided between the two limiting plates 201. An insert plate 2202 can be inserted into the limiting groove 202. A stop plate 2201 is installed on the front side of the insert plate 2202. A filter screen 22 is installed on the front side of the stop plate 2201. A clamping plate 2203 is installed on the front side of the filter screen 22. Clamping beads 2204 are installed on the left and right side walls of the clamping plate 2203. A concave handle 2205 is installed on the front side wall of the clamping plate 2203. The clamping plate 2203 can be inserted into the clamping groove 203. The clamping beads 2204 can be inserted into the clamping hole 204. The clamping hole 204 is located on the left and right side walls of the clamping groove 203.
[0023] A connecting pipe 401 is installed at the right end of the upper side wall of the flow regulator 4, and the connecting pipe 401 connects to the connecting pipe 3. A connecting pipe 403 is installed at the left end of the upper side wall of the flow regulator 4, and the connecting pipe 403 connects to the negative pressure suppressor 6. A connecting pipe 404 is installed at both the left and right ends of the lower side wall of the flow regulator 4. A connecting pipe 402 is installed at the middle of the lower side of the flow regulator 4, and the connecting pipe 402 connects to the connecting pipe 7. A connecting pipe 404 is installed on the upper side wall of the first delivery pipe 9. Connecting pipe 901 is No. 5. Connecting pipe 901 is connected to connecting pipe 10. Butterfly valve 11 is installed on connecting pipe 10. The other end of connecting pipe 10 is connected to water pump 12. The other end of water pump 12 is connected to connecting pipe 13. Butterfly valve 14 is installed on connecting pipe 13. The other end of connecting pipe 13 is connected to connecting pipe 1501. Connecting pipe 1501 is installed on the lower side wall of conveying pipe 15. The right end of conveying pipe 15 is connected to conveying pipe 19.
[0024] The working principle of this utility model is as follows:
[0025] When using a secondary water supply device, if the filter screens 22 inside the No. 1 filter 2 and No. 2 filter 8 need to be replaced or cleaned later, loosen the fixing bolt 21 and remove the sealing cover 20. Pull the concave handle 2205 outward. The locking beads 2204 on both sides of the locking plate 2203 will disengage from the locking holes 204 on both sides of the locking groove 203 under the force. At this time, the filter screen 22 can be replaced or cleaned. When installation is required, since multiple sets of limiting structures are installed on the inner sidewalls of the No. 1 filter 2 and No. 2 filter 8, each set of limiting structures consists of two limiting plates 201. There is a limiting groove 202 between the two limiting plates 201. Insert the insert plate 2202 into the limiting groove 202. The operation is simple, the disassembly and assembly are convenient, and the work efficiency is improved.
[0026] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. A secondary water supply device, characterized in that, The system includes a No. 1 filter (2), a flow regulator (4), a pressure gauge (5), a negative pressure suppressor (6), a No. 2 filter (8), a No. 1 delivery pipe (9), a No. 1 butterfly valve (11), a water pump (12), a No. 2 butterfly valve (14), a No. 2 delivery pipe (15), a No. 3 butterfly valve (16), a pressure tank (17), a check valve (18), and a filter screen (22). The flow regulator (4) is installed on the left end of the No. 1 filter (2). The pressure gauge (5) is installed in the middle of the upper end of the flow regulator (4). The negative pressure suppressor (6) is installed on the left side of the upper end of the flow regulator (4). The No. 2 filter screen (22) is installed on the lower left end of the outflow regulator (4). The filter (8) has a No. 1 delivery pipe (9) installed on the left end of the No. 2 filter (8), a No. 1 butterfly valve (11) installed on the upper end of the No. 1 delivery pipe (9), a water pump (12) installed on the upper end of the No. 1 butterfly valve (11), a No. 2 butterfly valve (14) installed on the upper end of the water pump (12), a No. 2 delivery pipe (15) installed on the upper end of the No. 2 delivery pipe (14), a pressure tank (17) installed on the left side of the upper end of the No. 2 delivery pipe (15), a No. 3 butterfly valve (16) installed on the lower end of the pressure tank (17), a check valve (18) installed on the right end of the No. 2 delivery pipe (15), and multiple filter screens (22) installed inside both the No. 1 filter (2) and the No. 2 filter (8).
2. The secondary water supply equipment according to claim 1, characterized in that, The first filter (2) and the second filter (8) are installed on the rear side of the sealing cover (20) by fixing bolts (21).
3. A secondary water supply device according to claim 2, characterized in that, Multiple sets of limiting structures are installed on the inner sidewalls of the No. 1 filter (2) and the No. 2 filter (8). Each set of limiting structures consists of two limiting plates (201), and a limiting groove (202) is provided between the two limiting plates (201).
4. A secondary water supply device according to claim 3, characterized in that, A plate (2202) can be inserted into the limiting groove (202). A stop plate (2201) is installed on the front side of the plate (2202), and a filter screen (22) is installed on the front side of the stop plate (2201).
5. A secondary water supply device according to claim 4, characterized in that, The filter screen (22) is equipped with a card plate (2203) on the front side. Card beads (2204) are installed on the left and right side walls of the card plate (2203). A recessed handle (2205) is installed on the front side wall of the card plate (2203).
6. A secondary water supply device according to claim 5, characterized in that, The card plate (2203) can be inserted into the card slot (203), and the card bead (2204) can be inserted into the card hole (204). The card hole (204) is located on the left and right side walls of the card slot (203).
7. A secondary water supply device according to claim 1, characterized in that, The first connecting pipe (401) is installed at the right end of the upper side wall of the flow regulator (4), and the first connecting pipe (401) is connected to the first connecting pipe (3). The third connecting pipe (403) is installed at the left end of the upper side wall of the flow regulator (4), and the third connecting pipe (403) is connected to the negative pressure suppressor (6). The fourth connecting pipe (404) is installed at both the left and right ends of the lower side wall of the flow regulator (4). The second connecting pipe (402) is installed at the middle of the lower side of the flow regulator (4), and the second connecting pipe (402) is connected to the second connecting pipe (7).
8. A secondary water supply device according to claim 1, characterized in that, Three No. 5 connecting pipes (901) are installed on the upper side wall of the No. 1 conveying pipe (9). The No. 5 connecting pipe (901) is connected to the No. 3 connecting pipe (10). The No. 1 butterfly valve (11) is installed on the No. 3 connecting pipe (10). The other end of the No. 3 connecting pipe (10) is connected to the water pump (12). The other end of the water pump (12) is connected to the No. 4 connecting pipe (13). The No. 2 butterfly valve (14) is installed on the No. 4 connecting pipe (13). The other end of the No. 4 connecting pipe (13) is connected to the No. 6 connecting pipe (1501). The No. 6 connecting pipe (1501) is installed on the lower side wall of the No. 2 conveying pipe (15).
9. A secondary water supply device according to claim 8, characterized in that, The right end of the second conveying pipe (15) is connected to the third conveying pipe (19).