Laminated backwashing prefilter
By using the inner frame to switch the filtering water through holes and backwash water spray holes in the stacked backwash prefilter, combined with the optimization of the mechanical structure, the problems of small flow and unclean flushing in the prior art are solved, and the effects of large flow filtration and high-pressure backwashing are achieved.
Patent Information
- Application Number
- CN202421096681.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-05-17
AI Technical Summary
The existing stacked backwash pre-filters have problems with small flow and unclear flushing, especially the small hole skeleton structure has a small flow rate. When backwashing the large hole skeleton structure, it is impossible to produce large pressure splashes, resulting in poor lamination flushing effect.
The inner frame is used to switch the filtering water through holes and backwashing water spray holes on the laminate frame, and the laminate pressing member is loosened or pressed with mechanical structures such as the first lug and the first inclined slide, and the second lug and the second inclined slide rise or fall, thereby realizing large flow filtration and high-pressure backwash.
It realizes that high pressure cleaning of laminates is provided during backflushing while having large flow during filtration, making laminates cleaner and more stable and reliable mechanical structure.
Smart Images
Figure CN222841624U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water purification equipment, in particular to a laminated backwashing pre-filter. Background Art
[0002] When filtering, water flows in from the outside to the inside of the existing laminated filter, and the laminate intercepts floating objects, rust, silt and other granular debris in the water; when backwashing, water flows out from the inside to the outside, washing away floating objects, rust, silt and other granular debris attached to the laminate. There are three main structures of the skeleton of the existing laminated filter: one is that there is a layer of filter screen inside the laminate and the laminate skeleton, and the filtration is mainly based on the filter screen, and the laminate only intercepts large particles; one is based on the filtration of the laminate, and there are only small holes on the skeleton inside the laminate. During backwashing, the pressure of the small holes can achieve high-pressure water to wash the laminate; one is based on the filtration of the laminate, and there are only large holes on the skeleton inside the laminate. During filtration, due to the large flow channel, the flow rate during filtration is large.
[0003] The existing laminated backwash pre-filter has the following problems:
[0004] First, the stacked pre-filter has stacked sheets and filter screens: the stacked sheets are only for coarse filtration, and the actual filtration still relies on the filter screen. When discharging sewage, the backwashing water flow area is large, and high-pressure backwashing cannot be achieved, and the stacked sheets and filter screen cannot be cleaned;
[0005] Second, the laminated pre-filter has a small hole frame structure: during backwashing, in order to achieve the flushing effect, the small hole size is small, resulting in a small flow rate during filtration. Under the same flow rate, the laminated pre-filter with a small hole frame requires more laminates and a larger size;
[0006] Third, the skeleton of the laminated pre-filter is a large-pore structure: the large pores ensure the flow of the product, but during backwashing, the large pores have a large water flow area and cannot produce high-pressure water splashes, resulting in poor laminate flushing effect and incomplete flushing of the laminate. Utility Model Content
[0007] The utility model aims to solve the above technical problems and provides a laminated backwash pre-filter. The utility model solves the problem of small flow rate of small-pore skeleton structure and the problem of unclean flushing of large-pore skeleton structure in the prior art.
[0008] The technical solution adopted by the utility model to solve the above technical problems is: a laminated backwash pre-filter, including a head assembly for water inlet and outlet, a filter bottle connected to the head assembly, a filter assembly arranged in the filter bottle, and a sewage discharge assembly arranged below the filter assembly, the filter assembly includes a laminated frame arranged in the filter bottle, an inner frame arranged in the laminated frame and connected to the sewage discharge assembly, laminates are arranged on the outer side of the laminated frame, filter water holes and backwash water spray holes are arranged on the laminated frame, and through holes are arranged on the inner frame, and the sewage discharge assembly can rotate to drive the inner frame to connect or stagger the filter water holes with the through holes. In the filtering state, the filter water holes are connected with the through holes, and the water flows through the laminates to form a large flow from the filter water holes and the through holes after filtering, and then flows out from the head assembly after passing through the inner frame; the sewage discharge assembly is rotated, and the sewage discharge assembly drives the inner frame to rotate, thereby staggering the filter water holes and the through holes, and the water flows through the backwash water spray holes to clean the laminates, and then the sewage is discharged from the sewage discharge assembly. The through holes are strip-shaped holes or special-shaped holes, which can allow large through-flow water to flow through.
[0009] Preferably, a valve core is provided in the head assembly, a first lug is provided on the valve core, a laminate pressing piece is provided above the laminate, a first inclined slide is provided on the laminate pressing piece, and the first lug is provided in the first inclined slide to raise the laminate pressing piece to loosen the laminate or lower it to compact the laminate. The arrangement of the first inclined slide and the first lug enables the laminate pressing piece to move up and down to loosen or compact the laminate, which is beneficial to better filtering effect in the compacted state, and beneficial to backwashing to clean impurities on the laminate in the loosened state.
[0010] Preferably, the machine head assembly includes a water inlet pipe, a water outlet pipe, and a machine head insert for connecting the water inlet pipe and the water outlet pipe, the valve core is arranged in the machine head insert, a first limit plate is provided on the machine head insert, a first limit groove is provided on the stacked pressing part, and the first limit plate is clamped in the first limit groove.
[0011] Preferably, a second limit plate is provided on the inner wall of the valve core, a second limit groove is provided above the inner frame, and the second limit plate and the second limit groove are clamped. The second limit plate and the second limit groove are clamped so that the valve core can rotate with the inner frame, and the rotation of the valve core drives the rotation of the first lug, and the rotation of the first lug raises or lowers the laminated pressing member along the first inclined slide.
[0012] Preferably, the sewage discharge assembly includes a sewage discharge shaft seat clamped with the inner frame, a sewage discharge shaft arranged in the sewage discharge shaft seat, and a sliding member arranged outside the sewage discharge shaft seat to open or close the sewage discharge shaft seat so that the sewage discharge shaft can be raised and lowered.
[0013] Preferably, a sewage pipe is provided on the sewage shaft seat, and the sewage shaft is inserted into the sewage pipe to be raised or lowered to open or close the sewage pipe; a third limiting groove is provided on the sewage shaft seat, and a third limiting plate is provided under the inner frame, and the third limiting plate is inserted into the third limiting groove to clamp the inner frame and the sewage shaft seat.
[0014] Preferably, a second lug is provided on the sewage discharge shaft, and a fourth limiting groove is provided on the sewage discharge shaft seat, and the second lug is inserted into the fourth limiting groove to clamp the sewage discharge shaft and the sewage discharge shaft seat.
[0015] Preferably, a second inclined slideway is provided on the sliding member, and the second lug passes through the fourth limiting groove and is inserted into the second inclined slideway.
[0016] Preferably, a second water outlet is provided on the valve core, a water inlet and a first water outlet are provided on the machine head insert, the water outlet pipe is connected to the first water outlet, and the second water outlet can be rotatably connected to the water inlet pipe or the water outlet pipe.
[0017] Preferably, a sewage discharge knob is provided on the outside of the sewage discharge assembly, and the sewage discharge pipe is inserted into the sewage discharge knob and clamped with the sewage discharge knob. The sewage discharge pipe and the sewage discharge knob are clamped, so that the sewage discharge pipe can be rotated by rotating the sewage discharge knob, which is convenient for users to use.
[0018] The method of using the utility model is as follows:
[0019] In the filtering state, water flows in from the water inlet pipe, enters the cavity between the filter bottle and the stack through the cavity between the head insert and the valve core, at this time, the filter water hole and the through hole are aligned to achieve a large flow rate during filtering, and the water flows through the gap between the stacks, the filter water hole and the through hole, and then enters the stack frame and the inner frame. The water flows upward and flows out through the first water outlet and the second water outlet into the water outlet pipe;
[0020] When in the sewage discharge state, rotating the sewage discharge knob will switch the filtering state to the sewage discharge state. The rotation of the sewage discharge knob drives the sewage discharge shaft seat to rotate. The rotation of the sewage discharge shaft seat drives the inner frame clamped with the sewage discharge shaft seat to rotate. The rotation of the inner frame drives the valve core to rotate. After the valve core rotates, the second water outlet on the valve core is aligned with the water inlet pipe. Due to the rotation of the valve core, the valve core drives the laminated pressing part to rise to loosen the laminated sheets, and the gap between the laminated sheets increases. The inner frame rotates, the through holes on the inner frame and the filtering water holes on the laminated sheet frame are staggered, and the filtering water holes on the inner frame are aligned with the reverse The flushing water spray holes are aligned, the filtration water holes on the laminate frame are closed, and the backwashing water spray holes are small holes, which form high-pressure flushing of the laminate; water flows from the water inlet pipe through the second water outlet into the inner frame, and the water flows out from the through holes and the backwashing water spray holes to flush the laminate, and the water flows into the cavity between the filter bottle and the laminate after flushing the laminate. At this time, the rotation of the sewage shaft seat drives the sewage shaft to rotate, and the second lug slides on the second inclined slide, and the sewage shaft rises to open the sewage pipe, and the sewage flows out from the cavity between the filter bottle and the laminate to the sewage pipe for discharge.
[0021] The utility model has the following beneficial effects:
[0022] 1. The utility model adopts an inner frame to switch the filtering water holes and backwashing water spray holes on the lamination frame, which can not only ensure a large flow during filtration, but also ensure high pressure cleaning of the laminations during backwashing, making the laminations cleaner;
[0023] 2. The utility model adopts the first lug and the first inclined slide to loosen or compress the laminated sheets by the laminated sheet pressing member, and uses the second lug and the second inclined slide to raise or lower the sewage discharge shaft to open or close the sewage discharge pipe, making the mechanical structure more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a structural diagram of the filtering state.
[0025] Figure 2 yes Figure 1 Cross-sectional view along the AA direction.
[0026] Figure 3 It is a structural diagram of the sewage discharge state.
[0027] Figure 4 yes Figure 3 Cross-sectional view along direction BB.
[0028] Figure 5 It is a structural diagram of the valve core.
[0029] Figure 6 It is a structural diagram of the valve core from another perspective.
[0030] Figure 7 It is a schematic diagram of the structure of the internal skeleton.
[0031] Figure 8 It is a structural diagram of the laminated skeleton.
[0032] Fig. 9 It is a structural schematic diagram of the laminated clamping member.
[0033] Fig.10 It is a structural diagram of the sewage discharge shaft seat.
[0034] Fig.11 It is a structural diagram of the sewage discharge shaft.
[0035] Fig.12 It is a structural schematic diagram of the sliding part.
[0036] Fig.13 It is a structural schematic diagram of the sewage discharge component.
[0037] Fig.14 It is a structural diagram of the machine head insert.
[0038] In the figure: 1, head assembly, 11, valve core, 111, first lug, 112, second limit plate, 113, second water outlet, 12, water inlet pipe, 13, water outlet pipe, 14, head insert, 141, first limit plate, 142, first water outlet, 143, water inlet, 2, filter bottle, 3, laminate skeleton, 31, filtration water hole, 32, backwash water spray hole, 4, inner skeleton, 41, through hole, 42, second limit groove, 43, third limit plate, 5, laminate, 6, laminate clamping member, 61, first inclined slide, 62, first limit groove, 7, sewage shaft seat, 71, sewage pipe, 72, third limit groove, 73, fourth limit groove, 8, sewage shaft, 81, second lug, 9, sliding member, 91, second inclined slide, 10, sewage knob. DETAILED DESCRIPTION
[0039] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.
[0040] like Figure 1-13 As shown, the utility model is a laminated backwash pre-filter, including a head assembly 1 for water inlet and outlet, a filter bottle 2 connected to the head assembly 1, a filter assembly arranged in the filter bottle 2, and a sewage discharge assembly arranged below the filter assembly, the filter assembly includes a laminated frame 3 arranged in the filter bottle 2, an inner frame 4 arranged in the laminated frame 3 and connected to the sewage discharge assembly, laminates 5 are arranged on the outer side of the laminated frame 3, a filter water hole 31 and a backwash water spray hole 32 are arranged on the laminated frame 3, a through hole 41 is arranged on the inner frame 4, and the sewage discharge assembly can rotate to drive the inner frame 4 to connect or stagger the filter water hole 31 with the through hole 41. The figure in this embodiment only illustrates that when the filtering water hole 31 is connected with the through hole 41, the through hole 41 is staggered with the backwashing water hole 32. It is also possible that when the filtering water hole 31 is connected with the through hole 41, the backwashing water hole 32 is also connected with the through hole 41. In this case, the inner skeleton is rotated, the filtering water hole 31 is staggered with the water hole 41, and the backwashing water hole 32 is still connected with the through hole 41.
[0041] A valve core 11 is provided in the head assembly 1, a first lug 111 is provided on the valve core 11, a stack pressing piece 6 is provided above the stack, a first inclined slide 61 is provided on the stack pressing piece 6, and the first lug 111 is provided in the first inclined slide 61 to raise the stack pressing piece 6 to loosen the stack or lower it to compress the stack.
[0042] The machine head assembly 1 includes a water inlet pipe 12, a water outlet pipe 13, and a machine head insert 14 for connecting the water inlet pipe 12 and the water outlet pipe 13. The valve core 11 is arranged in the machine head insert 14. The machine head insert 14 is provided with a first limit plate 141. The stacked pressing part 6 is provided with a first limit groove 62. The first limit plate 141 is clamped in the first limit groove 62.
[0043] A second limiting plate 112 is disposed on the inner wall of the valve core 11 , a second limiting groove 42 is disposed above the inner frame 4 , and the second limiting plate 112 is clamped with the second limiting groove 42 .
[0044] The sewage discharge assembly includes a sewage discharge shaft seat 7 clamped with the inner frame 4, a sewage discharge shaft 8 arranged in the sewage discharge shaft seat 7, and a sliding member 9 arranged outside the sewage discharge shaft seat 7 to open or close the sewage discharge shaft seat 7 so that the sewage discharge shaft 8 can be raised and lowered.
[0045] A sewage pipe 71 is provided on the sewage shaft seat 7, and the sewage shaft 8 is inserted into the sewage pipe 71 to be raised or lowered to open or close the sewage pipe 71; a third limiting groove 72 is provided on the sewage shaft seat 7, and a third limiting plate 43 is provided under the inner frame 4. The third limiting plate 43 is inserted into the third limiting groove 72 to clamp the inner frame 4 and the sewage shaft seat 7.
[0046] The sewage discharge shaft 8 is provided with a second lug 81 , and the sewage discharge shaft seat 7 is provided with a fourth limiting groove 73 . The second lug 81 is inserted into the fourth limiting groove 73 to clamp the sewage discharge shaft 8 and the sewage discharge shaft seat 7 .
[0047] The sliding member 9 is provided with a second inclined slideway 91 , and the second lug 81 passes through the fourth limiting groove 73 and is inserted into the second inclined slideway 91 .
[0048] The valve core 11 is provided with a second water outlet 113 , the head insert 14 is provided with a water inlet 143 and a first water outlet 142 , the water outlet pipe 13 is connected to the first water outlet 142 , and the second water outlet 113 is rotatably connected to the water inlet pipe 12 or the water outlet pipe 13 .
[0049] A sewage discharge knob 10 is disposed on the outside of the sewage discharge assembly, and the sewage discharge pipe 71 is inserted into the sewage discharge knob 10 and is locked with the sewage discharge knob 10 .
[0050] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0051] It should be noted that when an element is referred to as being "fixed on" or "provided on" another element, it may be directly located on the other element or indirectly located on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.
[0052] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating relative importance or indicating the number of technical features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
Claims
1. A laminated backwash pre-filter, characterized in that: The invention comprises a head assembly (1) for water inlet and outlet, a filter bottle (2) connected to the head assembly (1), a filter assembly arranged in the filter bottle (2), and a sewage discharge assembly arranged below the filter assembly, wherein the filter assembly comprises a laminated frame (3) arranged in the filter bottle (2), an inner frame (4) arranged in the laminated frame (3) and connected to the sewage discharge assembly, laminated sheets (5) are arranged on the outer side of the laminated frame (3), a filter water hole (31) and a backwash water spray hole (32) are arranged on the laminated frame (3), a through hole (41) is arranged on the inner frame (4), and the sewage discharge assembly can rotate to drive the inner frame (4) to connect or stagger the filter water hole (31) with the through hole (41); A valve core (11) is provided in the machine head assembly (1), a first lug (111) is provided on the valve core (11), a laminate pressing piece (6) is provided above the laminate, a first inclined slideway (61) is provided on the laminate pressing piece (6), and the first lug (111) is provided in the first inclined slideway (61) to raise the laminate pressing piece (6) to loosen the laminate or lower it to compress the laminate.
2. The laminated backwash pre-filter according to claim 1 is characterized in that: The machine head assembly (1) comprises a water inlet pipe (12), a water outlet pipe (13), and a machine head insert (14) for connecting the water inlet pipe (12) and the water outlet pipe (13); the valve core (11) is arranged in the machine head insert (14); a first limit plate (141) is arranged on the machine head insert (14); a first limit groove (62) is arranged on the laminated pressing member (6); and the first limit plate (141) is clamped in the first limit groove (62).
3. The laminated backwash pre-filter according to claim 1 or 2, characterized in that: A second limiting plate (112) is provided on the inner wall of the valve core (11), a second limiting groove (42) is provided above the inner frame (4), and the second limiting plate (112) and the second limiting groove (42) are clamped together.
4. The laminated backwash pre-filter according to claim 1 is characterized in that: The sewage discharge assembly comprises a sewage discharge shaft seat (7) clamped with the inner frame (4), a sewage discharge shaft (8) arranged in the sewage discharge shaft seat (7), and a sliding member (9) arranged outside the sewage discharge shaft seat (7) and enabling the sewage discharge shaft (8) to be raised or lowered to open or close the sewage discharge shaft seat (7).
5. The laminated backwash pre-filter according to claim 4 is characterized in that: A sewage pipe (71) is provided on the sewage shaft seat (7), and the sewage shaft (8) is inserted into the sewage pipe (71) to be raised or lowered to open or close the sewage pipe (71); a third limiting groove (72) is provided on the sewage shaft seat (7), and a third limiting plate (43) is provided below the inner frame (4); the third limiting plate (43) is inserted into the third limiting groove (72) to clamp the inner frame (4) and the sewage shaft seat (7).
6. The laminated backwash pre-filter according to claim 5, characterized in that: A second lug (81) is provided on the sewage discharge shaft (8), a fourth limiting groove (73) is provided on the sewage discharge shaft seat (7), and the second lug (81) is inserted into the fourth limiting groove (73) to clamp the sewage discharge shaft (8) and the sewage discharge shaft seat (7).
7. The laminated backwash pre-filter according to claim 6 is characterized in that: The sliding member (9) is provided with a second inclined slideway (91), and the second lug (81) passes through the fourth limiting groove (73) and is inserted into the second inclined slideway (91).
8. The laminated backwash pre-filter according to claim 4 is characterized in that: The valve core (11) is provided with a second water outlet (113), the machine head insert (14) is provided with a water inlet (143) and a first water outlet (142), the water outlet pipe (13) is connected to the first water outlet (142), and the second water outlet (113) is rotatably connected to the water inlet pipe (12) or to the water outlet pipe (13).
9. The laminated backwash pre-filter according to claim 5, characterized in that: A sewage discharge knob (10) is provided on the outside of the sewage discharge assembly, and the sewage discharge pipe (71) is inserted into the sewage discharge knob (10) and is locked with the sewage discharge knob (10).