Water purification filter for urban and rural water supply network
By introducing a fixing mechanism into the water purification filter of urban and rural water supply networks, the problem of low filter replacement efficiency has been solved, enabling rapid replacement and efficient maintenance, and improving the sealing performance and applicability of the filter.
Patent Information
- Application Number
- CN202520140865.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-21
AI Technical Summary
In the existing technology, the filter housing of the water purification filter for urban and rural water supply networks is equipped with multiple filter screens, and each filter screen is installed independently by bolts, resulting in low replacement efficiency.
The system employs a fixing mechanism, including a C-shaped frame, a support plate, and a knob screw. The design of the knob screw and fixing plate allows multiple filter screens to be securely fixed to the filter housing, and the semi-circular cover and sealing gasket enable quick disassembly and replacement.
It improves the efficiency of filter replacement, ensures stable filtration performance, enhances the sealing performance and applicability of the filter, and simplifies the maintenance process.
Smart Images

Figure CN223760583U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water purification technology for urban and rural water supply networks, and in particular to a water purification filter for urban and rural water supply networks. Background Technology
[0002] Urban and rural water supply networks are pipeline networks used to transport and distribute water in cities. They include facilities such as water sources, pumping stations, pipe networks, and water towers. They are crucial to ensuring the safety of residents' drinking water. As the "blood vessels" of urban infrastructure, water supply networks bear the important mission of delivering clean and safe drinking water to thousands of households. They connect multiple facilities such as water plants, pumping stations, and reservoirs to form a huge water circulation system.
[0003] Existing patent CN222274316U discloses a water purification filter for urban and rural water supply networks, including a filter housing. Drainage pipes are installed at both ends of the filter housing, and a water quality detector is installed inside each drainage pipe. Five sets of limiting grooves are formed at the top of the filter housing, and a movable cover assembly is installed inside each limiting groove. The movable cover assembly includes a sealing cover movably installed inside the limiting groove, and protrusions are installed on both sides of the sealing cover. This prior art, by installing a water quality detector, fixes the drainage pipes at both ends of the filter housing, facilitating the smooth delivery of drinking water through the drainage pipes. After filtration, the drinking water is tested by the water quality detector, which measures the water's color, turbidity, and pH value to determine if the water quality meets requirements. If the water quality does not meet the requirements, the water quality detector issues an alarm, prompting workers to repair the filter.
[0004] However, in the aforementioned prior art, the filter housing is equipped with multiple filter screens. Since each filter screen is installed independently by bolts, this method is extremely inconvenient when replacing all the filter screens at the same time, thus reducing the replacement efficiency. Utility Model Content
[0005] The purpose of this utility model is to provide a water purification filter for urban and rural water supply networks, which aims to solve the technical problem that in the existing technology, multiple filter screens are set on the filter shell, and since each filter screen is independently installed by bolts, it is extremely inconvenient to replace all the filter screens at the same time, thus reducing the replacement efficiency.
[0006] To achieve the above objectives, this utility model employs a water purification filter for urban and rural water supply networks, comprising two fixing mechanisms and a filter housing. Each fixing mechanism includes a C-shaped frame and a support plate. Multiple knob screws are threaded onto the C-shaped frame, and a fixing plate is positioned below each knob screw. Sliding grooves are provided on both inner sides of the C-shaped frame. An anti-detachment plate is provided at one end of the support plate. Multiple retaining slots are provided inside the filter housing, and filter screens are placed within each retaining slot. A first semi-circular through hole is provided above each retaining slot for the filter screen to pass through. The filter housing has multiple second semi-circular through holes on its upper part for the filter screen to pass through. A semi-circular cover is provided between the first and second semi-circular through holes. An extension block is provided at both ends of the semi-circular cover. The C-shaped frame is slidably connected to the support plate and is located on the support plate. The fixing plate abuts against the corresponding extension block and is located on the multiple extension blocks. The multiple extension blocks are located between the fixing plate and the support plate. The support plate is fixedly connected to the filter housing and is located on the outside of the filter housing.
[0007] The two fixing mechanisms are symmetrically arranged on the outside of the filter shell, and the fixing mechanisms are also arranged between the multiple extension blocks and the filter shell.
[0008] The semicircular cover has sealing gaskets on both sides, and the sealing gaskets abut against the first semicircular through hole, the second semicircular through hole and the semicircular cover.
[0009] The filter housing is provided with a drain pipe at both ends, and a flange is provided at the end of each drain pipe away from the filter housing.
[0010] The filter housing has multiple mounting tubes at its lower part, and each mounting tube extends to the inner bottom of the corresponding slot seat. A threaded cap is threaded on the lower part of the mounting tube, and an anti-deviation rod is provided on the threaded cap. A spring is sleeved on the anti-deviation rod, and the spring abuts against the lower part of the corresponding filter screen.
[0011] The knob screw is provided with a limiting ring below it, and the fixing plate has multiple limiting grooves. The limiting ring is rotatably connected to the fixing plate and is located in the corresponding limiting groove.
[0012] This utility model discloses a water purification filter for urban and rural water supply networks, comprising two fixing mechanisms and a filter housing. Each fixing mechanism includes a C-shaped frame and a support plate. Multiple knob screws are threaded onto the C-shaped frame, and a fixing plate is positioned below each knob screw. Sliding grooves are provided on both inner sides of the C-shaped frame. An anti-detachment plate is provided at one end of the support plate. Multiple retaining slots are provided inside the filter housing, and filter screens are placed within each retaining slot. A first semi-circular through-hole for the filter screen to pass through is located above each retaining slot, and multiple second semi-circular through-holes for the filter screen to pass through are located above the filter housing. A [missing information - likely a type of gap or opening] is provided between the first and second semi-circular through-holes. The semi-circular cover has extension blocks at both ends. The design of the C-shaped frame, support plate, knob screw, and fixing plate allows multiple semi-circular covers and multiple filter screens to be securely fixed to the filter housing, while also facilitating disassembly. Operators can easily control the pressing state of the fixing plate by adjusting the knob screw, thus enabling rapid replacement of the filter screens. This method solves the technical problem of the filter housing having multiple filter screens, where each screen is independently installed with bolts, making simultaneous replacement of all screens extremely inconvenient and reducing replacement efficiency. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a three-dimensional view of the present invention.
[0015] Figure 2 This is the front view of this utility model.
[0016] Figure 3 This is the utility model Figure 2 A cross-sectional view along line AA in the middle.
[0017] Figure 4 This is the utility model Figure 2 A cross-sectional view along the BB line.
[0018] Figure 5 This is the utility model Figure 4 A cross-sectional view of the CC line.
[0019] Figure 6 This is the utility model Figure 5 A magnified view of a section at point D.
[0020] Figure 7 This is a schematic diagram showing the disassembled filter shell and card slot in this utility model.
[0021] Figure 8 This is a schematic diagram of the semi-circular cover in this utility model.
[0022] 1-Filter housing, 2-C-shaped frame, 3-Support plate, 4-Knob screw, 5-Fixing plate, 6-Slide groove, 7-Anti-detachment plate, 8-Card slot seat, 9-Filter screen, 10-First semi-circular through hole, 11-Second semi-circular through hole, 12-Semi-circular cover, 13-Extension block, 14-Sealing gasket, 15-Drainage pipe, 16-Flange, 17-Mounting pipe, 18-Threaded cover, 19-Anti-deviation rod, 20-Spring, 21-Limiting ring, 22-Limiting groove. Detailed Implementation
[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0024] Please see Figures 1 to 8This utility model provides a water purification filter for urban and rural water supply networks, including two fixing mechanisms and a filter shell 1. The fixing mechanism includes a C-shaped frame 2 and a support plate 3. The C-shaped frame 2 is threaded with multiple knob screws 4, and a fixing plate 5 is provided below the multiple knob screws 4. The two inner sides of the C-shaped frame 2 are provided with sliding grooves 6. One end of the support plate 3 is provided with an anti-detachment plate 7. The filter shell 1 is provided with multiple slot seats 8, and a filter screen 9 is provided in the slot seats 8. The upper part of the slot seats 8 has a first semi-circular through hole 10 for the filter screen 9 to pass through. The upper part of the filter shell 1 has multiple second semi-circular through holes 11 for the filter screen 9 to pass through. A semi-circular cover 12 is provided between the first semi-circular through hole 10 and the second semi-circular through hole 11. Both ends of the semi-circular cover 12 are provided with extension blocks 13. The C-shaped frame 2 is slidably connected to the support plate 3 and is located on the support plate 3. The fixed plate 5 abuts against the corresponding extension block 13 and is located on multiple extension blocks 13. All extension blocks 13 are located between the fixed plate 5 and the support plate 3. The support plate 3 is fixedly connected to the filter housing 1 and is located on the outside of the filter housing 1. The slot seat 8 and replaceable filter screen 9 inside the filter facilitate regular inspection and replacement, ensuring consistently high filtration efficiency. Simultaneously, the semi-circular cover 12 allows for cleaning or replacement of the filter screen 9 without complete disassembly, improving maintenance efficiency. The combination of the C-shaped frame 2, the support plate 3, the knob screw 4, and the fixed plate 5 provides a flexible installation and disassembly mechanism for the filter. This design allows operators to easily open the fixing mechanism when maintenance or replacement of multiple filter screens 9 is required, without the need for extensive disassembly of the entire filter.
[0025] The two fixing mechanisms are symmetrically arranged on the outside of the filter shell 1, and the fixing mechanisms are also arranged between the multiple extension blocks 13 and the filter shell 1.
[0026] Secondly, sealing gaskets 14 are provided on both sides of the semi-circular cover 12, and the sealing gaskets 14 abut against the first semi-circular through hole 10, the second semi-circular through hole 11 and the semi-circular cover 12. The sealing gaskets 14 provided on the semi-circular cover 12 effectively prevent water from leaking from the gap between the first semi-circular through hole 10, the second semi-circular through hole 11 and the semi-circular cover 12. This design improves the sealing performance of the filter and ensures the safety and cleanliness of the water.
[0027] Furthermore, both ends of the filter housing 1 are provided with drainage pipes 15, and the ends of the two drainage pipes 15 furthest from the filter housing 1 are provided with flanges 16. The design of the drainage pipes 15 and the flanges 16 allows the filter to be easily connected to the water supply network, and also facilitates connection and expansion with other pipes or equipment. This design improves the applicability and flexibility of the filter.
[0028] In addition, a plurality of mounting tubes 17 are provided below the filter housing 1, and the plurality of mounting tubes 17 extend to the inner bottom of the corresponding slot seat 8. A threaded cap 18 is threadedly provided below the mounting tube 17, and an anti-deviation rod 19 is provided on the threaded cap 18. A spring 20 is sleeved on the anti-deviation rod 19, and the spring 20 abuts against the lower part of the corresponding filter screen 9. Through the combination of the threaded cap 18 below the mounting tube 17, the anti-deviation rod 19 and the spring 20, the filter screen 9 can be automatically popped out when it is replaced, thereby further improving the replacement efficiency.
[0029] Meanwhile, a limiting ring 21 is provided below the knob screw 4, and the fixing plate 5 has multiple limiting grooves 22. The limiting ring 21 is rotatably connected to the fixing plate 5 and is located in the corresponding limiting groove 22. The setting of the limiting ring 21 and the limiting groove 22 makes it easy for the knob screw 4 to rotate with the fixing plate 5 when it is threadedly connected to the C-shaped frame 2, thereby pushing the fixing plate 5.
[0030] When replacing multiple filter screens 9 using this invention, the corresponding knob screws 4 on the C-shaped frame 2 are rotated counterclockwise in sequence to reduce the holding force between the fixing plate 5 and the extension block 13. The C-shaped frame 2 is then gently pushed to slide on the support plate 3 until it completely detaches from the multiple extension blocks 13 above the filter housing 1. After the C-shaped frame 2 is completely detached, the multiple semi-circular covers 12 can be easily removed from between the corresponding first semi-circular through holes 10 and second semi-circular through holes 11. At this point, the multiple filter screens 9 have lost the fixation of the semi-circular covers 12 and can be easily removed from the slot 8. Then, the new multiple filter screens 9 are placed into the corresponding slot 8 in the original direction. Align the holes of the filter screen 9 with the first semi-circular through hole 10 and the second semi-circular through hole 11, place the plurality of semi-circular covers 12 back between the first semi-circular through hole 10 and the second semi-circular through hole 11, and ensure that the extension block 13 of the semi-circular cover 12 abuts against the support plate 3. Slide the C-shaped frame 2 back onto the plurality of extension blocks 13, and rotate the corresponding knob screw 4 clockwise so that the fixing plate 5 abuts tightly against the extension block 13, thereby fixing the semi-circular cover 12 and the filter screen 9. This method solves the technical problem that the filter shell 1 has multiple filter screens 9, and since each filter screen 9 is installed independently by bolts, it is extremely inconvenient to replace all the filter screens 9 at the same time, thus reducing the replacement efficiency.
[0031] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.
Claims
1. A water purification filter for urban and rural water supply network, characterized in that it comprises two fixing mechanisms and a filter shell, the fixing mechanism comprises a C-shaped frame and a support plate, a plurality of knob screws are arranged on the C-shaped frame in a threaded manner, a fixing plate is arranged below the plurality of knob screws, sliding grooves are arranged on both inner sides of the C-shaped frame, a anti-off plate is arranged at one end of the support plate, a plurality of clamping groove seats are arranged in the filter shell, a filter screen is arranged in the clamping groove seat, a first semicircular through hole for the filter screen to pass through is arranged above the clamping groove seat, a plurality of second semicircular through holes for the filter screen to pass through are arranged above the filter shell, a semicircular cover is arranged between the first semicircular through hole and the second semicircular through hole, extension blocks are arranged at both ends of the semicircular cover, the C-shaped frame is in sliding connection with the support plate and located on the support plate, the fixing plate is in abutment with the corresponding extension block and located on the plurality of extension blocks, and the plurality of extension blocks are located between the fixing plate and the support plate, the support plate is in fixed connection with the filter shell and located on the outer side of the filter shell.
2. The water purification filter for urban and rural water supply network according to claim 1, characterized in that the two fixing mechanisms are symmetrically arranged on the outer side of the filter shell respectively, and the fixing mechanism is further arranged between the plurality of extension blocks and the filter shell.
3. The water purification filter for urban and rural water supply network according to claim 2, characterized in that the semicircular cover is provided with sealing pads on both sides, and the sealing pads are in abutment between the first semicircular through hole, the second semicircular through hole and the semicircular cover.
4. The water purification filter for urban and rural water supply network according to claim 3, characterized in that the filter shell is provided with drainage pipes at both ends, and the two drainage pipes are provided with flanges at the ends away from the filter shell.
5. The water purification filter for urban and rural water supply network according to claim 4, characterized in that the filter shell is provided with a plurality of mounting pipes below, and the plurality of mounting pipes respectively extend to the inner bottom of the corresponding clamping groove seat, the mounting pipe is provided with a threaded cover below in a threaded manner, the threaded cover is provided with an anti-deviation rod, the anti-deviation rod is sleeved with a spring, and the spring is in abutment below the corresponding filter screen.
6. The water purification filter for urban and rural water supply network according to claim 5, characterized in that the knob screw is provided with a limiting ring below, the fixing plate has a plurality of limiting grooves, and the limiting ring is in rotational connection with the fixing plate and located in the corresponding limiting groove.