CN215462458U - Dirt suction device for backwashing filter - Google Patents
Dirt suction device for backwashing filter Download PDFInfo
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- CN215462458U CN215462458U CN202121639624.XU CN202121639624U CN215462458U CN 215462458 U CN215462458 U CN 215462458U CN 202121639624 U CN202121639624 U CN 202121639624U CN 215462458 U CN215462458 U CN 215462458U
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- main shaft
- flow equalizing
- dirt
- inlet
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Abstract
The utility model discloses a dirt absorbing device for a backwashing filter, which is rotationally connected inside a filter element and comprises a main shaft, a guide shaft, a pressure spring, a linear bearing, a retainer ring, a flow equalizing disc and a balance block, wherein the main shaft is hollow, one end of the main shaft is open, one side of the main shaft is provided with a mounting seat corresponding to the two ends of the main shaft, one end of the guide shaft is provided with a base, the base is fixed with the mounting seat, and the axial direction of the guide shaft is vertical to the axial direction of the main shaft; the outer side wall of the linear bearing is provided with a connecting plate, the linear bearing is installed on the guide shaft in a matching way, the retainer ring is fixedly connected to one end of the guide shaft far away from the main shaft, the pressure spring is connected to the outer side of the guide shaft, and two ends of the pressure spring are respectively abutted to the base and the connecting plate; the inner part of the flow equalizing disc is provided with a containing cavity, two opposite ends of the flow equalizing disc are respectively fixed with the connecting plate, the middle part of one side of the flow equalizing disc is communicated with a connecting sleeve, the middle part of one side of the main shaft is communicated with a sleeve, and the connecting sleeve is connected to the outer peripheral side of the sleeve in a sliding manner; the other side of flow equalizing dish is equipped with into dirty mouthful, and the balancing piece is fixed with the main shaft and is kept away from the opposite side of flow equalizing dish.
Description
Technical Field
The utility model relates to the technical field of filters, in particular to a dirt absorbing device for a backwashing filter.
Background
The existing backwashing filter dirt absorbing device adopts a scanning structure, a dirt absorbing assembly is composed of a plurality of cleaning rollers tightly attached to the surface of a filter screen, a rotating rod of the dirt absorbing assembly can drive the cleaning rollers to rotate and can slide along the filter screen in a linear mode, and the backwashing filter of the structure is large in size. Secondly, two rectangular sewage suction ports are symmetrically distributed at two sides of a rotating shaft of the sewage suction structure, and due to the influence of welding errors of a main shaft assembly of the sewage suction structure, the relative position of the sewage suction ports is difficult to control, so that constant-flow sewage discharge at any time during backwashing operation is difficult to guarantee.
Therefore, how to provide a dirt suction device for a back washing filter, which has a compact structure and a good dirt suction effect, is a problem that needs to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model provides a dirt suction device for a backwashing filter, which is simple in structure and stable in dirt suction effect.
In order to achieve the purpose, the utility model adopts the following technical scheme: a dirt suction device for a backwashing filter is rotationally connected inside a filter element and comprises a main shaft, a guide shaft, a pressure spring, a linear bearing, a check ring, a flow equalizing disc and a balance block, wherein the main shaft is hollow, one end of the main shaft is open, mounting seats are integrally arranged at positions, corresponding to the two ends of the main shaft, of one side of the main shaft respectively, a base is arranged at one end of the guide shaft, the base is fixedly connected with the mounting seats, and the axial direction of the guide shaft is vertical to the axial direction of the main shaft; the outer side wall of the linear bearing is provided with a connecting plate, the linear bearing is installed on the guide shaft in a matching manner, the retainer ring is fixedly connected to one end of the guide shaft, which is far away from the main shaft, the pressure spring is connected to the outer side of the guide shaft, and two ends of the pressure spring are respectively abutted to the base and the connecting plate;
the flow equalizing disc is internally provided with a containing cavity, two opposite ends of the flow equalizing disc are provided with mounting plates, the mounting plates are respectively and fixedly connected with corresponding connecting plates, the middle part of one side of the flow equalizing disc is connected and communicated with a connecting sleeve, the middle part of one side of the main shaft is communicated with a sleeve corresponding to the position of the connecting sleeve, and the connecting sleeve is connected to the outer peripheral side of the sleeve in a sliding manner in parallel with the axial direction of the connecting sleeve; the other side of the flow equalizing disc is provided with a sewage inlet which corresponds to the inner surface of the filter element; the balance block is fixedly connected with the main shaft and is far away from the other side of the flow equalizing disc.
The utility model has the beneficial effects that: the utility model relates to a dirt absorbing device for a backwashing filter, which is provided with a main shaft, a guide shaft, a pressure spring, a linear bearing, a retainer ring, a flow equalizing disc and a balance block, wherein the guide shaft is fixedly connected to one side of the main shaft, the flow equalizing disc is used for absorbing dirt and is connected with the linear bearing, the linear bearing is installed on the guide shaft in a matching way, the retainer ring limits the displacement of the linear bearing, the pressure spring is connected to the periphery of the guide shaft, two ends of the pressure spring are abutted against the linear bearing and the guide shaft, the middle part of one side of the flow equalizing disc is connected and communicated with a connecting sleeve, the middle part of one side of the main shaft is communicated with a sleeve corresponding to the position of the connecting sleeve, the flow equalizing disc can move for a certain distance towards the main shaft under the action of the guide shaft and the pressure spring, the flow equalizing disc is ensured to be tightly attached to the inner surface of a filter element inner framework when rotating along with the circumferential direction of the main shaft, fluid bypass is avoided, and the dirt absorbing effect is good.
Preferably, the open end of the main shaft is connected with a sewage discharge pipe.
Preferably, two ends of the balance weight are fixedly connected with a support, and the support is fixedly connected with the side wall of the main shaft.
Preferably, the dirty mouthful of advancing includes dirty mouthful and lower dirty mouthful of advancing, it is the rectangle to advance dirty mouthful and lower dirty mouthful of advancing, it staggers with dirty mouthful upper and lower position down to advance dirty mouthful, a side of advancing dirty mouthful and the width direction that the homonymy limit of lower dirty mouthful corresponds the flow equalizing disc have predetermined distance L.
Preferably, the predetermined distance L between the width direction that the upper sewage inlet corresponds the flow equalizing disc with the lower sewage inlet is half of the filter core ripples pleat distance, when the upper sewage inlet corresponds the filter core ripples pleat peak position, the lower sewage inlet corresponds the filter core ripples pleat valley position, perhaps when the upper sewage inlet corresponds the filter core ripples pleat valley position, the lower sewage inlet corresponds the filter core ripples pleat peak position.
Preferably, a sealing ring is arranged on the outer peripheral side of the sleeve and is in adaptive connection with the connecting sleeve.
Drawings
FIG. 1 is a first schematic view of a dirt suction apparatus for a back-flushing filter according to the present invention;
FIG. 2 is a second schematic view of a dirt suction device for a back-flushing filter according to the present invention;
FIG. 3 is a third schematic view of a dirt suction device for a back-flushing filter according to the present invention;
FIG. 4 is an enlarged view of the dirt absorbing apparatus for the back flush filter of the present invention at the A position;
FIG. 5 is an assembly view of a dirt suction apparatus for a back flush filter according to the present invention;
fig. 6 is a schematic diagram of a soil pick-up device for a back flush filter according to the present invention.
The device comprises a filter element 1, a main shaft 2, a guide shaft 3, a pressure spring 4, a linear bearing 5, a retainer ring 6, a flow equalizing disc 7, a balance weight 8, a mounting seat 9, a base 10, a connecting plate 11, a connecting sleeve 12, a sleeve 13, a dirt inlet 14, a dirt inlet 1401, a dirt inlet 1402, a dirt inlet 15, a support 16, a speed reducing motor 16, an inlet 17, an outlet 18, a mounting plate 19, backwash fluid 20, filtered fluid 21 and filtered fluid 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to the attached drawings 1 to 6 of the utility model, according to the embodiment of the utility model, the dirt suction device for the backwashing filter is rotatably connected inside the filter element 1 and comprises a main shaft 2, a guide shaft 3, a pressure spring 4, a linear bearing 5, a retainer ring 6, a flow equalizing disc 7 and a balance block 8, wherein the main shaft 2 is hollow and one end of the main shaft is open, the positions of one side of the main shaft 2 corresponding to the two ends of the main shaft are respectively and integrally provided with a mounting seat 9, one end of the guide shaft 3 is provided with a base 10, the base 10 is fixedly connected with the mounting seat 9, and the axial direction of the guide shaft 3 is vertical to the axial direction of the main shaft 2; the outer side wall of the linear bearing 5 is provided with a connecting plate 11, the linear bearing 5 is installed on the guide shaft 3 in a matching manner, the retainer ring 6 is fixedly connected to one end of the guide shaft 3 far away from the main shaft 2, the pressure spring 4 is connected to the outer side of the guide shaft 3, and two ends of the pressure spring are respectively abutted to the base 10 and the connecting plate 11;
the flow equalizing disc 7 is internally provided with a containing cavity, two opposite ends of the flow equalizing disc are provided with mounting plates 19, the mounting plates 19 are respectively and fixedly connected with connecting plates 11 at corresponding positions, the middle part of one side of the flow equalizing disc 7 is connected and communicated with a connecting sleeve 12, the middle part of one side of the main shaft 2 is communicated with a sleeve 13 at a position corresponding to the connecting sleeve, and the connecting sleeve 12 is connected to the outer peripheral side of the sleeve 13 in a sliding manner; the other side of the flow equalizing disc 7 is provided with a sewage inlet 14, and the sewage inlet 14 corresponds to the inner surface of the filter element 1; the balance weight 8 is fixedly connected with the main shaft 2 and is far away from the other side of the flow equalizing disc 7.
Specifically, the flow equalizing disc is communicated with the main shaft through the connecting sleeve and the sleeve to form a sewage discharge channel, and the sewage inlet adsorbs sewage impurities on the inner surface of the filter element, enters the main shaft through the flow equalizing disc, the connecting sleeve and the sleeve and is discharged through the open end. The main shaft is connected with the gear motor in a transmission mode, and power is provided to enable the flow equalizing disc to rotate circumferentially.
More specifically, the open end of the main shaft 2 is connected with a sewage discharge pipe, and the sewage and impurities are discharged out of the filter.
In some embodiments, the two ends of the balance weight 8 are fixedly connected with the support 15, the support 15 is fixedly connected with the side wall of the main shaft 2, and the pressure on the two sides of the main shaft is balanced through the arrangement of the balance weight, so that the main shaft rotates more stably, the energy loss is reduced, and the service life of the structural component is prolonged.
In other embodiments, the dirt inlet 14 includes an upper dirt inlet 1401 and a lower dirt inlet 1402, both the upper dirt inlet 1401 and the lower dirt inlet 1402 are rectangular, the upper dirt inlet 1401 and the lower dirt inlet 1402 are staggered in vertical position, and one side of the upper dirt inlet 1401 and the same side of the lower dirt inlet correspond to a predetermined distance L in the width direction of the flow equalizing disc 7.
Specifically, the predetermined distance L between the width direction of the equal flow plate corresponding to the upper dirt inlet 1401 and the lower dirt inlet 1402 is half of the filter core wave pleat pitch, when the upper dirt inlet 1401 corresponds to the filter core wave pleat peak position, the lower dirt inlet 1402 corresponds to the filter core wave pleat valley position, or when the upper dirt inlet 1401 corresponds to the filter core wave pleat valley position, the lower dirt inlet 1402 corresponds to the filter core wave pleat peak position, and when the filter is specifically cleaned, the upper dirt inlet and the lower dirt inlet are staggered, so that the dirt intake amount of the dirt inlet at any moment is constant.
More specifically, the periphery side of sleeve pipe 13 sets up the sealing washer, and the sealing washer prevents that the filth in the homoflow dish from flowing backward to the filter core in with adapter sleeve 12 adaptation connection, improves filth cleaning performance.
When the flow equalizing disc rotates circumferentially, the inner surface of the filter element is fully covered, and the dirt absorbing effect is good.
The specific application principle of the utility model is as follows: the device is rotatably arranged in a filter element, a main shaft penetrates through an end cover at the top of the filter element and is in transmission connection with a speed reduction motor 16, the filter element comprises an inner framework, an outer framework and a filter cylinder, the filter cylinder is positioned between the inner framework and the outer framework and is fixed with the end cover at the top, the filter cylinder is wavy and has wave crests and wave troughs, the inner frameworks are fixed at two ends of the filter cylinder, the size of an inner arc ring where the inner framework is positioned is equal to that of an inner arc ring where the wave crest of the filter cylinder is positioned, the side edge of a flow equalizing disc is abutted against the inner framework of the filter element, so that the flow equalizing disc can adsorb dirt remained on the inner surface of the filter cylinder, when a liquid medium is normally filtered, the medium enters from an inlet 17 of a filter, is intercepted by the filter element and flows out from an outlet 18, when the dirt is reversely cleaned, the main shaft rotates, the flow equalizing disc rotates circumferentially, each wave pleat section of the filter element is abutted against a dirt suction port to form a self-cleaning chamber, and the dirt is discharged through the main shaft, the sewage discharge effect is stable. Completely covering the inner surface of the filter element. The dirt in each corrugation can be discharged without influencing the flow, and the dirt cleaning effect is stable.
Specifically, because the internal surface of inner frame has fluctuation, the flow equalizing disc can move certain distance towards the main shaft under the effect of guiding shaft and pressure spring, guarantees that the flow equalizing disc hugs closely the internal surface of filter core inner frame when following main shaft circumferential direction, avoids the fluid bypass, and the soil pick-up is effectual.
For the device and the using method disclosed by the embodiment, the description is simple because the device and the using method correspond to the method disclosed by the embodiment, and the relevant points can be referred to the description of the method part.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A dirt suction device for a backwashing filter is rotationally connected inside a filter element (1) and is characterized by comprising a main shaft (2), a guide shaft (3), a pressure spring (4), a linear bearing (5), a retainer ring (6), a flow equalizing disc (7) and a balance block (8), wherein the main shaft (2) is hollow, one end of the main shaft is open, mounting seats (9) are integrally arranged at positions, corresponding to the two ends, of one side of the main shaft (2), a base (10) is arranged at one end of the guide shaft (3), the base (10) is fixedly connected with the mounting seats (9), and the axial direction of the guide shaft (3) is vertical to the axial direction of the main shaft (2); the outer side wall of the linear bearing (5) is provided with a connecting plate (11), the linear bearing (5) is installed on the guide shaft (3) in a matching mode, the retainer ring (6) is fixedly connected to one end, far away from the main shaft (2), of the guide shaft (3), the pressure spring (4) is connected to the outer side of the guide shaft (3), and two ends of the pressure spring are respectively abutted to the base (10) and the connecting plate (11);
the flow equalizing disc (7) is internally provided with a containing cavity, mounting plates (19) are arranged at two opposite ends of the flow equalizing disc (7), the mounting plates (19) are respectively and fixedly connected with the corresponding connecting plates (11), the middle part of one side of the flow equalizing disc (7) is connected and communicated with a connecting sleeve (12), the middle part of one side of the main shaft (2) is communicated with a sleeve (13) corresponding to the position of the connecting sleeve, and the connecting sleeve (12) is slidably connected to the outer peripheral side of the sleeve (13); a sewage inlet (14) is formed in the other side of the flow equalizing disc (7), and the sewage inlet (14) corresponds to the inner surface of the filter element (1); the balance block (8) is fixedly connected with the main shaft (2) and is far away from the other side of the flow equalizing disc (7).
2. The dirt suction device for the backflushing filter according to claim 1, wherein the open end of the main shaft (2) is connected with a drain pipe.
3. The dirt suction device for the backflushing filter according to claim 1, wherein two ends of the balance block (8) are fixedly connected with a support (15), and the support (15) is fixedly connected with the side wall of the main shaft (2).
4. The dirt suction device for the backflushing washing filter according to claim 1, characterized in that the dirt inlet (14) comprises an upper dirt inlet (1401) and a lower dirt inlet (1402), the upper dirt inlet (1401) and the lower dirt inlet (1402) are both rectangular, the upper dirt inlet (1401) and the lower dirt inlet (1402) are staggered in vertical position, and a predetermined distance L is formed between one side of the upper dirt inlet (1401) and the same side of the lower dirt inlet in the width direction of the flow equalizing disc (7).
5. The dirt suction device for the backflushing washing filter according to claim 4, wherein the predetermined distance L between the upper dirt inlet (1401) and the lower dirt inlet (1402) corresponding to the width direction of the flow equalizing disc is half of the filter core corrugation pitch, when the upper dirt inlet (1401) corresponds to the filter core corrugation crest position, the lower dirt inlet (1402) corresponds to the filter core corrugation trough position, or when the upper dirt inlet (1401) corresponds to the filter core corrugation trough position, the lower dirt inlet (1402) corresponds to the filter core corrugation crest position.
6. The dirt suction device for the back flush filter according to claim 1, wherein a sealing ring is arranged on the outer peripheral side of the sleeve (13), and the sealing ring is in adaptive connection with the connecting sleeve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121639624.XU CN215462458U (en) | 2021-07-19 | 2021-07-19 | Dirt suction device for backwashing filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121639624.XU CN215462458U (en) | 2021-07-19 | 2021-07-19 | Dirt suction device for backwashing filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215462458U true CN215462458U (en) | 2022-01-11 |
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ID=79727798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121639624.XU Active CN215462458U (en) | 2021-07-19 | 2021-07-19 | Dirt suction device for backwashing filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215462458U (en) |
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2021
- 2021-07-19 CN CN202121639624.XU patent/CN215462458U/en active Active
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