CN217909268U - Back-washing pre-filter with improved structure - Google Patents
Back-washing pre-filter with improved structure Download PDFInfo
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- CN217909268U CN217909268U CN202221363868.4U CN202221363868U CN217909268U CN 217909268 U CN217909268 U CN 217909268U CN 202221363868 U CN202221363868 U CN 202221363868U CN 217909268 U CN217909268 U CN 217909268U
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Abstract
The utility model discloses a configuration amendment's leading filter of back flush, including valve head, filter flask and filter element group spare, filter element group spare fixed mounting is in the filter flask, and this filter element group spare includes the filter core and the water-locator that it distributes and have the water distribution hole on it, and the water-locator surrounds in the filter core to fall into the lower filter core of the last filter core on upper portion and lower part with the filter core, the leading filter of back flush still includes the axis of rotation and can be with the shutoff portion that above-mentioned water distribution hole shutoff was perhaps opened, the axis of rotation stretches into in the filter core from the top of valve head, the shutoff portion is fixed in the axis of rotation and rotates along with the axis of rotation together. The utility model discloses an axis of rotation is when rotating, and shutoff portion can rotate with walking to make the water distribution hole open or close, with this switching demand of accomplishing filtration state and back flush state, moreover the utility model discloses adopt the water purification back flush when the back flush, ensure to obtain the washing effect of ideal.
Description
Technical Field
The utility model relates to a leading filter especially indicates a leading filtration of back flush of institutional advancement, and this leading filter is convenient operation not only, and the back flush is respond well moreover.
Background
The applicant discloses a one-key backwashing prefilter in a patent 2021212418856, which comprises a valve head with a valve cavity, a water inlet and a water outlet, a filter flask, a filter element assembly, a reversing valve, a screw rod part and a lifting part, wherein the lower end of the filter flask forms a sewage discharge outlet, and the inner side of the filter element assembly forms a purified water cavity; a raw water cavity is formed outside the filter element component; the reversing valve is provided with a first flow passage which enables the water inlet to be communicated with the raw water cavity through rotation, and the water inlet is in a filtering state at the moment; the second flow channel enables the water inlet to be communicated with the water purifying cavity through rotation, and the second flow channel is in a back washing state; the reversing valve of the screw rod part synchronously rotates; the lifting part is connected to the screw rod part, a sealing plug used for opening or closing the sewage draining port is arranged on the lifting part, and the lifting part moves in a lifting mode along with the rotation of the screw rod part.
The structure utilizes the synchronous linkage of the reversing valve, the screw rod part and the lifting part, and when the structure is used, the switching of the filtering state and the back flushing state of the pre-filter can be completed only by rotating the knob while controlling the opening or closing of the sewage draining channel.
Although the operation is convenient, the raw water is used for backwashing (namely, the backwashing water is the unfiltered tap water) during backwashing, impurities on the outer side surface of the filter element can be effectively cleaned, and meanwhile, the impurities are attached to the inner surface of the filter screen, and finally, the backwashing effect is negatively influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a leading filter of back flush of institutional advancement, its aim at overcome the not good enough problem of back flush effect that prior art exists.
In order to achieve the purpose, the utility model provides a technical scheme as follows:
the utility model provides a pre-filter of back flush of institutional advancement, includes valve head, filter flask and filter element group spare, filter element group spare fixed mounting is in the filter flask, and this filter element group spare includes filter core and the water-locator that has the water distribution hole on it, and the water-locator surrounds in the filter core to divide into the filter core into the upper filter core on upper portion and the lower filter core of lower part, pre-filter of back flush still includes the axis of rotation and can be with the shutoff portion of above-mentioned water distribution hole shutoff or opening, the axis of rotation stretches into in the filter core from the top of valve head, the shutoff portion is fixed in the axis of rotation and rotates along with the axis of rotation.
The left end and the right end of the valve head are respectively provided with a water inlet and a water outlet, and the lower end of the valve head is provided with a filter flask connecting port; the upper end of the filter flask is fixedly connected with a filter flask connector of the valve head, the lower end of the filter flask is provided with a sewage discharge outlet, and the inner space formed by matching the filter flask and the valve head forms a water storage cavity.
The filter element divides the water storage cavity into a water purification area at the inner side of the filter element and a raw water area at the outer side of the filter element, the raw water area is communicated with the water inlet, and the water purification area is communicated with the water outlet; the water distributor surrounds the filter element, the filter element is divided into an upper filter element at the upper part and a lower filter element at the lower part, and the raw water area is divided into an upper cavity at the upper part and a lower cavity at the lower part by taking the water distributor as a boundary.
When the water distribution device works, the plugging part rotates along with the rotating shaft, and when the plugging part opens the water distribution holes, the water distribution holes are in a filtering state; when the plugging part plugs the water distribution hole (simultaneously, a drain outlet of the filter flask is opened), the filter flask is in a back washing state.
In a recommended embodiment, the lower end of the filter flask is provided with a sewage draining outlet; the back-flushing prefilter also comprises a piston part and an internal threaded pipe, wherein the internal threaded pipe is fixed on the inner side of the filter element, and the lower end of the internal threaded pipe penetrates through the bottom of the lower filter element; the piston part is in threaded connection with the inner threaded pipe, the piston part is connected to the lower end of the rotating shaft in a liftable mode, and a sealing plug capable of opening or closing the sewage draining port is formed at the bottom of the piston part. The rotating shaft, the piston portion and the internally threaded tube of the present embodiment cooperate with one another to form a screw assembly.
During filtering, the rotating shaft is rotated clockwise, the piston part moves downwards at the moment, and the sealing plug is blocked (closed) on the sewage discharge outlet, and meanwhile, the blocking part deviates (opens) the water distribution hole; at the moment, water flow enters the raw water area from the water inlet, enters the water purification area after being filtered by the filter element and finally flows out from the water outlet.
During back flushing, the rotating shaft is rotated anticlockwise, the piston part moves upwards at the moment, and the sealing plug is separated from (opened) the sewage discharge port; meanwhile, the plugging part plugs the water distribution holes; at the moment, water flow enters the upper cavity from the water inlet, enters the water purification area after being filtered by the upper filter element, then reversely enters the lower cavity from the lower filter element, and finally is discharged from the sewage discharge port.
As the utility model discloses a preferred embodiment, the axis of rotation can the simultaneous control sealing plug (go up and down) and shutoff portion (rotatory) motion when rotating, not only can satisfy the switching demand of filtration state and back flush state, moreover the utility model discloses adopt the water purification back flush when the back flush, ensure to obtain the washing effect of ideal.
In a recommended embodiment, when the plugging part rotates to the state that the water distribution hole is opened, the sealing plug closes the sewage discharge outlet; when the plugging part rotates to the state that the water distribution hole is plugged, the sealing plug opens the sewage outlet.
In a recommended embodiment, the upper filter element comprises an upper framework and an upper filter screen sleeved on the upper framework;
the lower filter element comprises a lower framework and a lower filter screen sleeved on the lower framework;
the water distributor comprises support frames and water distribution plates which are oppositely arranged, the support frames are fixed at the lower port of the upper framework, the water distribution plates are fixed and surround the upper port of the lower framework, and the water distribution holes are formed in the water distribution plates; the support frame comprises a support frame main body and an upper peripheral edge part positioned at the outer edge of the support frame main body; the water distribution plate comprises a water distribution plate main body and a lower peripheral edge part positioned at the outer edge of the water distribution plate main body, the upper peripheral edge part and the lower peripheral edge part are mutually butted, and a certain gap is kept between the support frame main body and the water distribution plate main body to serve as an assembly cavity;
the plugging part comprises a plurality of plugging sheets which can correspondingly plug the corresponding water distribution holes one by one, and each plugging sheet is positioned in the assembly cavity.
In a preferred embodiment, the blocking portion further includes a circular surrounding wall, and the inner side of each of the blocking pieces is fixed to the circular surrounding wall; the upper framework sealing sleeve is arranged on the circular surrounding wall.
In a recommended embodiment, the backwashing prefilter further comprises a limiting assembly for limiting the rotation angle of the rotating shaft.
In a recommended embodiment, the limiting component comprises a limiting protrusion and an arc-shaped groove, and the limiting protrusion is arranged on the top surface of the water distribution plate main body facing the plugging part; the arc-shaped groove is formed in the bottom surface, facing the water distribution plate main body, of the blocking portion, and the limiting protrusion is clamped into the arc-shaped groove and can move along the arc-shaped groove.
In a preferred embodiment, the rotation angle of the rotating shaft is N, the maximum stroke of the sealing plug is S, and the pitch of the internally threaded tube is L, S = L × N/360.
In a recommended embodiment, the backwashing pre-filter further comprises a scraping and brushing sleeve sleeved on the lower filter element, and the scraping and brushing sleeve comprises a sleeve body and a plurality of blades fixed on the sleeve body; and a corresponding flow guide mechanism is arranged on each water distribution hole, and the water outlet end of the flow guide mechanism is close to and faces the blades.
In a recommended embodiment, the backwashing prefilter further comprises an electric actuator capable of driving the rotating shaft to rotate, and an output end of the electric actuator is connected to an upper end of the rotating shaft.
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
the utility model discloses an axis of rotation is when rotating, and shutoff portion can rotate with walking to make the water distribution hole open or close, with this switching demand of accomplishing filtration state and back flush state, moreover the utility model discloses adopt the water purification back flush when the back flush, ensure to obtain the washing effect of ideal.
Drawings
FIG. 1 is a schematic cross-sectional view of a filtration state according to an embodiment.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a schematic sectional view showing the structure of the rotating shaft and the piston portion of the embodiment when they are not mounted.
Fig. 4 is a schematic perspective view of main components in the water storage chamber according to an embodiment.
Fig. 5 is an exploded view of the components of fig. 4.
Fig. 6 is an exploded structure diagram of the water distributor.
Fig. 7 is a perspective view of the blocking portion.
Fig. 8 is a schematic structural view of the blocking portion from another view angle.
Fig. 9 is a schematic cross-sectional structure diagram of the second embodiment.
FIG. 10 is a schematic perspective view of the second embodiment.
Fig. 11 is a schematic perspective view of a water distribution plate according to a second embodiment.
Detailed Description
For further understanding of the present invention, the present invention will be described in detail with reference to the following examples, which are provided for illustration of the present invention but are not intended to limit the scope of the present invention.
Example one
Referring to fig. 1, a structurally improved backwash pre-filter includes: the filter comprises a valve head 1, a filter bottle 2, a filter element assembly, a rotating shaft 51, a piston part 52, an internal threaded pipe 53 and a blocking part.
The left side of valve head 1 is equipped with water inlet 11, and the right side of valve head 1 is equipped with delivery port 12, and the lower extreme of valve head 1 is equipped with the filter flask connector (not marked in the figure), is equipped with spacer 13 in the valve head 1 for prevent that the water that water inlet 11 flowed in from directly flowing out from delivery port 12.
The upper end of the filter flask 2 is fixedly connected with the filter flask connecting port of the valve head 1, the lower end of the filter flask 2 is provided with a sewage discharge outlet 21, and the inner space formed by the filter flask 2 and the valve head 1 is matched to form a water storage cavity (not marked in the figure).
The filter element assembly is fixedly arranged in the water storage cavity and comprises a filter element 3 and a water distributor 4. Referring to fig. 3, the upper port of the filter element 3 is tightly pressed on the lower port of the spacer 13, and the water storage cavity is divided into a water purification area 101 inside the filter element 3 and a raw water area 102 outside the filter element 3, the raw water area 102 is communicated with the water inlet 11, and the water purification area 101 is communicated with the water outlet 12.
The water distributor 4 surrounds the filter element 3, and a plurality of water distribution holes 40 surrounding the filter element 3 are arranged on the water distributor 4 at equal intervals. It divides the filter element 3 into an upper filter element at the upper part and a lower filter element at the lower part, and the raw water area 102 is divided into an upper cavity 103 at the upper part and a lower cavity 104 at the lower part by taking the water distributor 4 as a boundary.
Referring to fig. 5, the upper filter core includes a tubular and hollow upper frame 31 and an upper filter screen 32 sleeved on the upper frame 31; the lower filter element comprises a tubular and hollow lower framework 33 and a lower filter screen 34 sleeved on the lower framework 33.
Referring to fig. 2, 5 and 6, the water distributor 4 includes a support frame 41 and a water distribution plate 42, the support frame 41 fixes the lower port of the upper framework 31 at intervals, the water distribution plate 42 fixes and surrounds the upper port of the lower framework 33, and the water distribution holes 40 are spaced apart from each other and arranged on the water distribution plate 42. Each support frame 41 includes a support frame main body 411 at the middle and an upper peripheral portion 412 located at the outer edge of the support frame main body 411, and it can be seen that the upper peripheral portion 412 protrudes downward from the support frame main body 411. The water distribution plate 42 includes a circular middle water distribution plate main body 421 and a lower peripheral edge portion 422 surrounding the outer edge of the water distribution plate main body 421, and it can be seen from the figure that the height of the lower peripheral edge portion 422 is greater than that of the water distribution plate main body 421. When assembling, the upper peripheral part 412 and the lower peripheral part 422 are butted against each other, and a certain gap is kept between the support frame main body 411 and the water distribution plate main body 421 to form the assembling chamber 400.
Referring to fig. 3 and 4, as a preferred embodiment of the present invention, the rotating shaft 51, the liftable piston 52 and the internal threaded tube 53 cooperate to form a screw assembly. The internal threaded pipe 53 is fixed to the inner side of the filter element 3, an internal thread is arranged in the internal threaded pipe 53, and the lower end of the internal threaded pipe penetrates through the bottom of the lower filter element. The piston part 52 is of a sleeve structure with an open upper end, and a sealing plug 520 is formed at the bottom of the piston part 52, and the sealing plug 520 is opposite to the sewage discharge port 21 of the filter bottle 2. The rotating shaft 51 is inserted into the filter element 3 from the top of the valve head 1, and the lower end of the rotating shaft 51 is inserted into the piston portion 52 from the open end of the piston portion 52, the piston portion 52 can move up and down relative to the rotating shaft 51, and the piston portion 52 is screwed into the internally threaded tube 53. When the rotating shaft 51 rotates, the piston portion 52 moves up and down in the internal thread pipe 53, and at this time, the sealing plug 520 also moves up and down, so that the sealing plug 520 opens or closes the sewage draining port 21.
Referring to fig. 7, the backwash pre-filter further includes a blocking part 6 capable of blocking the water distribution holes 40 one by one, and the blocking part 6 is fixed to the rotating shaft 51 and rotates together with the rotating shaft 51.
The plugging part 6 comprises a circular surrounding wall 61 and a plurality of plugging pieces 62 capable of plugging corresponding water distribution holes 40 one by one, the circular surrounding wall 61 comprises a circular surrounding wall main body 611 and a limiting ring 612, the limiting ring 612 surrounds the lower port of the circular surrounding wall main body 611, and the inner side of each plugging piece 62 is fixed to the limiting ring 612.
The upper framework 31 is arranged on the circular surrounding wall body 611 in a sealing manner; the plugging pieces 62 are spaced from each other, and the inner ends of the plugging pieces 62 are fixed to the outer periphery of the limiting ring 612. As can be seen, the blocking pieces 62 are approximately fan-shaped, and when installed, each of the blocking pieces 62 is installed in the assembly cavity 400.
Referring to fig. 6 and 8, the backwash pre-filter further comprises a limiting component for limiting the rotation angle of the rotation shaft 51, the limiting component comprises a limiting protrusion 423 and an arc-shaped groove 613 which are matched with each other (the central angle corresponding to the arc-shaped groove 613 is 180 degrees), and the limiting protrusion 423 is arranged on the top surface of the water distribution plate main body 421 facing the blocking part 6; the arc groove 613 is provided on the bottom surface of the stopper ring 612 facing the water distribution plate main body 421, and the stopper protrusion 423 is caught in the arc groove 613 and is movable along the arc groove 613.
In this embodiment, the rotation angle of the rotating shaft 51 is 180 degrees, the movement stroke of the sealing plug 520 is S, the pitch of the internally threaded tube 53 is L, and S =1/2L.
During filtering, the rotating shaft 51 is rotated clockwise (180 degrees), at this time, the piston part 52 moves downwards, and the sealing plug 520 is plugged in the sewage draining exit 21, and meanwhile, the plugging part 6 deviates from the water distributing hole 40; the water flow enters the raw water area 102 from the water inlet 11, enters the water purification area 101 after being filtered by the filter element 3, and finally flows out from the water outlet 12.
During back flushing, the rotating shaft 51 is rotated anticlockwise (180 degrees), and the piston part 52 moves upwards at the moment, so that the sealing plug 520 is separated from the sewage discharge port 21; meanwhile, the plugging part 6 plugs the water distribution holes 40; the water flow enters the upper cavity 103 from the water inlet 11, enters the water purifying area 101 after being filtered by the upper filter element, then reversely enters the lower cavity 104 from the lower filter element, and finally is discharged from the sewage discharge outlet 21.
The utility model discloses an axis of rotation when rotating, can simultaneous control sealing plug 520 (go up and down) and shutoff portion 6 (rotatory) motion, not only can satisfy the switching demand of filtration state and back flush state, moreover the utility model discloses adopt the water purification back flush when the back flush, ensure to obtain the washing effect of ideal.
In addition, the rotating shaft in this embodiment may be rotated manually as needed, or may be rotated by installing an electric actuator (not shown in the figure).
Example two
Referring to fig. 9 and fig. 10, the present embodiment is substantially the same as the first embodiment, and the main difference is that:
the second backwash pre-filter of this embodiment further includes a scraping brush sleeve 7 (scraping brush sleeve is provided with bristles or scraping strips and the like scraping brush components), the scraping brush sleeve 7 is sleeved on the lower filter core, and the scraping brush sleeve 7 includes a sleeve body and a plurality of blades 72 fixed on the sleeve body 71 at intervals. Referring also to fig. 11, the water distribution holes 40 of this embodiment are provided with corresponding flow guide mechanisms 8, and the water outlet ends 80 of the flow guide mechanisms 8 are close to and face the blades 72. Each of the diversion mechanisms 8 includes a diversion inner wall 81, a diversion outer wall 82 and an inclined flow baffle 83, the inner side of each flow baffle 83 is fixedly connected with the diversion inner wall 81, and the outer side of each flow baffle 83 is fixedly connected with the diversion outer wall 82.
The water flow flowing out from the flow guide mechanism 8 directly impacts the blades 72 of the scraping and brushing sleeve, so that the scraping and brushing sleeve 7 rotates at a high speed by taking the filter element as a central shaft, and a more ideal cleaning effect is achieved.
The present invention has been described in detail with reference to the embodiments, but the above description is only for the purpose of describing the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (10)
1. The utility model provides a pre-filter of institutional advancement's back flush, includes valve head, filter flask and filter element group spare, filter element group spare fixed mounting is in the filter flask, and this filter element group spare includes the filter core and the water-locator that has the water distribution hole on it, and the water-locator surrounds in the filter core to fall into the lower filter core of the last filter core on upper portion and lower part with the filter core, its characterized in that: the backwash pre-filter also comprises a rotating shaft and a blocking part which can block or open the water distribution holes, the rotating shaft extends into the filter element from the top of the valve head, and the blocking part is fixed on the rotating shaft and rotates along with the rotating shaft.
2. The backwash pre-filter as set forth in claim 1, wherein: the lower end of the filter flask is provided with a sewage outlet; the backwashing prefilter further comprises a piston part and an internal threaded pipe, wherein the internal threaded pipe is fixed on the inner side of the filter element, and the lower end of the internal threaded pipe penetrates through the bottom of the lower filter element; the piston part is in threaded connection with the internal threaded pipe, the piston part is connected to the lower end of the rotating shaft in a liftable mode, and a sealing plug capable of opening or closing the sewage draining outlet is formed at the bottom of the piston part.
3. The backwash pre-filter as set forth in claim 2, wherein: when the plugging part rotates to the state that the water distribution hole is opened, the sealing plug closes the sewage draining outlet; when the plugging part rotates to the state that the water distribution hole is plugged, the sealing plug opens the sewage discharge port.
4. The backwash pre-filter as set forth in claim 1, wherein:
the upper filter element comprises an upper framework and an upper filter screen sleeved on the upper framework;
the lower filter element comprises a lower framework and a lower filter screen sleeved on the lower framework;
the water distributor comprises support frames and water distribution plates which are oppositely arranged, the support frames are fixed at the lower port of the upper framework, the water distribution plates are fixed and surround the upper port of the lower framework, and the water distribution holes are formed in the water distribution plates; the support frame comprises a support frame main body and an upper peripheral edge part positioned at the outer edge of the support frame main body; the water distribution plate comprises a water distribution plate main body and a lower peripheral edge part positioned at the outer edge of the water distribution plate main body, the upper peripheral edge part and the lower peripheral edge part are mutually butted, and a certain gap is kept between the support frame main body and the water distribution plate main body to serve as an assembly cavity;
the plugging part comprises a plurality of plugging sheets which can correspondingly plug the corresponding water distribution holes one by one, and each plugging sheet is positioned in the assembly cavity.
5. The backwash pre-filter according to claim 4, wherein: the plugging part also comprises a circular surrounding wall, and the inner side of each plugging sheet is fixed on the circular surrounding wall; the upper framework sealing sleeve is arranged on the circular surrounding wall.
6. The backwash pre-filter as set forth in claim 4, wherein: the backwashing prefilter also comprises a limiting component used for limiting the rotation angle of the rotating shaft.
7. The backwash pre-filter according to claim 6, wherein: the limiting component comprises a limiting bulge and an arc-shaped groove, and the limiting bulge is arranged on the top surface of the water distribution plate main body facing the plugging part; the arc-shaped groove is arranged on the bottom surface of the plugging part facing the water distribution plate main body, and the limiting protrusion is clamped in the arc-shaped groove and can move along the arc-shaped groove.
8. The backwash pre-filter as set forth in claim 6, wherein: the rotation angle of the rotating shaft is N, the maximum stroke of the sealing plug is S, the pitch of the internally threaded pipe is L, and S = L × N/360.
9. The backwash pre-filter as set forth in claim 1, wherein: the backwashing prefilter also comprises a scraping and brushing sleeve sleeved on the lower filter element, and the scraping and brushing sleeve comprises a sleeve body and a plurality of blades fixed on the sleeve body; and a corresponding flow guide mechanism is arranged on each water distribution hole, and the water outlet end of the flow guide mechanism is close to and faces the blades.
10. The backwash pre-filter as set forth in claim 1, wherein: the back-washing pre-filter also comprises an electric actuator which can drive the rotating shaft to rotate, and the output end of the electric actuator is connected to the upper end of the rotating shaft.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220959958 | 2022-04-25 | ||
| CN2022209599583 | 2022-04-25 |
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| Publication Number | Publication Date |
|---|---|
| CN217909268U true CN217909268U (en) | 2022-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221363868.4U Active CN217909268U (en) | 2022-04-25 | 2022-06-02 | Back-washing pre-filter with improved structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116440576A (en) * | 2023-06-19 | 2023-07-18 | 河南平和滤清器有限公司 | Filter element mounting structure of filter |
| CN117339283A (en) * | 2023-12-06 | 2024-01-05 | 江苏兄弟管业制造有限公司 | Filter assembly with pollution discharge function and use method thereof |
-
2022
- 2022-06-02 CN CN202221363868.4U patent/CN217909268U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116440576A (en) * | 2023-06-19 | 2023-07-18 | 河南平和滤清器有限公司 | Filter element mounting structure of filter |
| CN116440576B (en) * | 2023-06-19 | 2023-09-12 | 河南平和滤清器有限公司 | Filter element mounting structure of filter |
| CN117339283A (en) * | 2023-12-06 | 2024-01-05 | 江苏兄弟管业制造有限公司 | Filter assembly with pollution discharge function and use method thereof |
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