CN221155627U - Filter screen cleaning structure of pre-filter - Google Patents

Abstract

The utility model provides a filter screen cleaning structure of a pre-filter, and belongs to the technical field of water treatment. It has solved the problem of how to improve the clean convenience to the filter screen. In this filter screen cleaning structure of pre-filter, pre-filter is including having the shell of inlet channel and play water channel, be equipped with the inner chamber in the shell with the filter flask of the inner intercommunication of inlet channel, be equipped with in the filter flask be the filter screen of tube-shape, just the inner of play water channel with filter screen inner chamber intercommunication, filter flask bottom has the drainage channel, and filter screen cleaning structure includes ultrasonic vibrator and has the swivel mount of cleaning brush, ultrasonic vibrator electricity is connected in the shell and stretches into in the filter screen, the swivel mount rotates to be connected in the filter flask and around the filter screen sets up, just the cleaning brush with filter screen surface looks. This leading filter's filter screen cleaning structure can improve the clean convenience to the filter screen.

Description

Filter screen cleaning structure of pre-filter

Technical Field

The utility model belongs to the technical field of water treatment, and relates to a filter screen cleaning structure of a pre-filter.

Background

The pre-filter is a water treatment device which is widely applied in life nowadays, is generally assembled on a household pipe and is used for filtering tap water before household so as to prevent impurities such as rust, sediment, algae and the like from entering.

The prefilter in the prior art generally comprises a shell with a water inlet channel and a water outlet channel, wherein a circuit assembly for controlling the filter to work, a pressure gauge for detecting water pressure and a filter flask with a filter screen inside are arranged in the shell, a water inlet communicated with the water inlet channel of the shell and a water outlet channel connected with the water outlet channel are arranged on the filter flask, the filter screen is assembled in the filter flask and then covered outside the water outlet channel, that is, after water is input from the outside, the water flow sequentially passes through the water inlet channel and the water inlet and enters the filter flask, and then is filtered through small holes on the filter flask, so that impurities are blocked by the filter flask, and the filtered water is discharged from the filter flask through the water outlet channel and is input into a room.

Although the pre-filter in the prior art can filter impurities in a short time, after long-time use, the amount of impurities attached to the filter screen is increased, so that the filter screen is blocked, the flow rate of water is reduced, the condition of the filter screen is required to be periodically and frequently checked by a user, and the filter screen is detached, cleaned or replaced by the pre-filter, so that the operation is very inconvenient.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, and provides a filter screen cleaning structure of a pre-filter, which aims to solve the technical problems that: how to improve the cleaning convenience of the filter screen.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a filter screen cleaning structure of pre-filter, pre-filter is including having the shell of inlet channel and play water channel, be equipped with the inner chamber in the shell with the filter flask of inlet channel inner intercommunication, be equipped with in the filter flask be the filter screen of tube-shape, just the inner of play water channel with filter screen inner chamber intercommunication, its characterized in that, filter flask bottom has the drainage channel, and filter screen cleaning structure includes ultrasonic vibrator and has the swivel mount of cleaning brush, ultrasonic vibrator electricity is connected in the shell and stretches into in the filter screen, the swivel mount rotates to be connected in the filter flask and around the filter screen sets up, just the cleaning brush with the filter screen surface offsets and pastes.

The filter screen cleaning structure of the pre-filter cleans the filter screen through the matching of the ultrasonic vibrator and the rotating frame with the cleaning brush when the quantity of impurities attached to the filter screen increases after a certain period of use, at the same time, the water outlet channel is in a closed state, the water inlet channel and the water outlet channel are in an open state, so that water entering the filter bottle is directly discharged through the water outlet channel, the rotating frame connected with the cleaning brush rotates around the filter screen in the process, the cleaning brush is used for carrying out the outer surface of the filter screen, impurities are peeled off from the filter screen under the matching action of the water flow and are discharged along with the water outlet channel, and meanwhile, the ultrasonic vibrator is also started, so that the water flow resonates along with the ultrasonic vibrator, the cleaning brush is matched with the vibrating action of the ultrasonic vibrator to clean the filter screen, and the filter screen can be cleaned conveniently and rapidly by the ultrasonic vibrator.

In the filter screen cleaning structure of the pre-filter, the rotating frame is cylindrical, a plurality of water passing ports are formed in the circumferential direction at intervals, and the cleaning brush is provided with at least one group and extends from the upper end of the inner wall of the rotating frame to the lower end of the inner wall of the rotating frame.

The rivers that lets in the water inlet and get into specifically filter in the water inlet entering filter screen of seting up on the swivel mount side, install the cleaning brush in the swivel mount have at least a set of, and its one end extends to the swivel mount upper end, and the other end extends to the swivel mount lower extreme to ensure that the cleaning brush can be abundant when rotating with the filter screen outer wall contact, in order to guarantee the cleaning effect to impurity.

In the filter screen cleaning structure of the pre-filter, the filter screen cleaning structure further comprises a rotating sleeve which is gear-shaped and is penetrated at two ends, the bottom of the rotating sleeve is provided with an annular edge which is inserted into the drainage channel and is attached to the inner wall of the drainage channel, and the top of the rotating sleeve is provided with a connecting column connected with the rotating frame.

The rotating sleeve can ensure circumferential positioning of the rotating sleeve through the annular edge inserted in the drainage channel, is connected with the rotating frame through the connecting column, and is in an opening state with the water inlet channel, water flows are discharged out of the drainage channel after being filled with the rotating sleeve, kinetic energy of the rotating sleeve can be transferred to the rotating sleeve when the rotating sleeve is continuously and outwards output after the rotating sleeve is filled with the water flowing in the process, the rotating sleeve takes the annular edge as a central point to perform circumferential rotation, the rotating sleeve drives the rotating frame to perform circumferential rotation around the filter screen, and therefore the cleaning brush cleans the outer side face of the filter screen.

In the filter screen cleaning structure of the pre-filter, the bottom of the filter bottle is provided with the steady flow cover arranged around the rotating sleeve, the top of the steady flow cover is provided with the abdication hole, and the connecting column extends out of the abdication hole.

Through the setting of stationary flow cover for ensure that the rivers act on the power of rotating on the cover and remain unanimous all the time, avoid partial rivers's vortex effect to cause the unable steady circumferential direction action of carrying on of rotating the cover, and the spliced pole stretches out through the hole of stepping down on the stationary flow cover specifically, in order to realize that the adapter sleeve can drive swivel mount pivoted while guarantee that the rivers that have impurity can outwards discharge.

In the filter screen cleaning structure of the pre-filter, the bottom of the rotating frame is provided with an upper toothed ring protruding downwards, the top of the steady flow cover is provided with a lower toothed ring protruding upwards, and the upper toothed ring is meshed with the lower toothed ring and surrounds the connecting column.

Through the meshing cooperation of last insection ring and lower insection ring for the rotating sleeve can drive the swivel mount and do homeopathic or anticlockwise direction rotation, and under carrying out normal operating condition, and leading filter, because go up insection ring and lower insection ring and be in intermeshing's state, can't drive swivel mount and carry out reverse rotation, thereby avoid when carrying out normal filtration to rivers the cleaning brush through the circumference outer wall of filter screen, avoid the filter effect to receive its influence, and when clean work goes on, because the meshing cooperation of last insection ring and lower insection ring, make the swivel mount carry out circumferential rotation in addition around the filter screen in the rotation process, also can carry out reciprocating motion in the axial, with this cleaning brush to the cleaning effect of filter screen outer wall that improves.

In the filter screen cleaning structure of the pre-filter, a polygonal limiting hole is formed in the bottom of the rotating frame, the shape of the connecting column is the same as that of the limiting hole and penetrates through the limiting hole, and a water gap communicated with the yielding hole is formed between the circumferential outer wall of the connecting column and the circumferential inner wall of the limiting hole.

Through setting up spliced pole and spacing hole into polygonal shape for the spliced pole outer wall can realize the circumferential rotation action of swivel mount with spacing downthehole wall cooperation, simultaneously, the concrete size of spliced pole is less than spacing hole size, thereby realizes forming the water clearance that the intercommunication was yielded between spliced pole outer wall and the filtration pore inner wall, guarantees that the rivers that have impurity can normally outwards discharge.

In the filter screen cleaning structure of the pre-filter, a mounting channel which is communicated with the cavity in the filter flask is vertically formed in the shell and above the filter flask, a circuit board is connected in the shell, the ultrasonic vibrator is in threaded connection with the mounting channel and extends into the filter screen, and the ultrasonic vibrator is electrically connected with the circuit board.

Ultrasonic vibrator one end specifically and installation passageway looks spiro union, and the other end stretches into in the filter screen through the installation passageway, when the circuit board in the casing starts it for be in the vibration state of water in the filter screen, when discharging to the drainage channel through the mesh of filter screen, can make the rivers that are in vibration state drive the impurity resonance that is attached to on the filter screen outer wall, thereby make impurity spall by the filter screen, and circuit board specifically installs in the top of filter flask, also can effectively prevent that it from touching rivers and taking place the short circuit.

Compared with the prior art, the filter screen cleaning structure of the pre-filter has the following advantages: the rotating frame drives the cleaning brush to brush the outer surface of the filter screen, the impurity on the outer side surface of the filter screen is peeled off by matching with flowing water flow, and meanwhile, the flowing water flow is driven to resonate by the vibration of the ultrasonic filter, so that the cleaning brush is assisted to improve the cleaning effect on the filter screen.

Drawings

Fig. 1 is a schematic structural view of a screen cleaning structure of the present prefilter.

Fig. 2 is a cross-sectional view taken along the A-A direction in fig. 1.

Fig. 3 is a partial enlarged view at a in fig. 2.

Fig. 4 is a partial enlarged view at B in fig. 2.

Fig. 5 is a schematic structural view of the rotating frame.

Fig. 6 is a schematic view of a structure of another view of the rotating frame.

Fig. 7 is a schematic structural view of the rotating sleeve.

FIG. 8 is a schematic structural view and a partial enlarged view of the filter flask

In the figure, 1, a shell; 11. a water inlet channel; 12. a water outlet channel; 13. a mounting channel; 14. a circuit board; 2. a filter flask; 21. a filter screen; 22. a drainage channel; 23. a steady flow cover; 231. a relief hole; 232. a lower toothed ring; 3. an ultrasonic vibrator; 4. a rotating frame; 41. a cleaning brush; 42. a water passing port; 43. an upper toothed ring; 44. a limiting hole; 5. a rotating sleeve; 51. an annular rim; 52. a connecting column; 6. and (3) water passing gaps.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 8, in the filter screen cleaning structure of the pre-filter, the pre-filter comprises a shell 1 which is in a strip shape and is vertically arranged, two sides of the shell 1 are respectively provided with a water inlet channel 11 and a water outlet channel 12, a filter bottle 2 which is vertically arranged is connected in the shell 1 in a screwed connection manner, the filter bottle is specifically made of transparent plastic, inner end ports of the water inlet channel 11 and the water outlet channel 12 are all positioned at the top of the filter bottle 2, the inner end ports of the water outlet channel 12 are arranged around the inner end ports of the water inlet channel 11, a filter screen 21 which is made of stainless steel materials and is in a cylinder shape is arranged in the filter bottle 2, and the upper end of the filter screen 21 is clamped with the inner end ports of the water outlet channel 12, so that the inner end ports of the water inlet channel 11 and the water outlet channel 12 are separated.

Referring to fig. 5-7, a drainage channel 22 is formed in the bottom of the filter flask 2 along the vertical direction, a ball valve is rotationally connected to the drainage channel 22, a steady flow cover 23 which is hollow is integrally formed in the inner bottom wall of the filter flask 2, a yielding hole 231 which is communicated with the drainage channel 22 and the inner cavity of the filter flask 2 is formed in the top of the steady flow cover 23, the filter screen cleaning structure comprises a cylindrical rotating frame 4 and a gear-shaped rotating sleeve 5, a plurality of strip-shaped water passing holes 42 are formed in the outer wall of the rotating frame in the circumferential direction, three groups of cleaning brushes 41 which are abutted against the outer side surface of the filter net 21 are arranged on the inner wall of the rotating frame at intervals along the circumferential direction, and each group of cleaning brushes 41 extends from the upper end edge of the rotating frame 4 to the lower end edge of the rotating frame 4.

The inside cavity that is of rotation cover 5 just runs through the setting at both ends, the annular that is cyclic annular and downward bulge setting is had in its bottom along 51, the top has the spliced pole 52 of vertical setting, rotation cover 5 is pegged graft with the inner port of drain channel 22 along 51 through the annular, thereby realize rotation cover 5 circumference location in stationary flow cover 23, spacing hole 44 (concrete shape is the same with spliced pole 52, all is long circular) that is the polygon is offered to the bottom center department of swivel mount 4, spliced pole 52 passes hole 231 of stepping down and stretches into in spacing hole 44, make form water clearance 6 between the circumference outer wall of spliced pole 52 and the circumference inner wall of spacing hole 44.

As shown in fig. 6 and 8, the bottom of the rotating frame 4 is provided with an upper insection ring 43 which surrounds the limiting hole 44 and protrudes downwards, the top of the steady flow cover 23 is provided with a lower insection ring 232 which surrounds the abdication hole 231 and protrudes upwards, and the upper insection ring 43 and the lower insection ring are engaged by insection matching on the end surfaces of each other.

In addition, the installation passageway 13 has been seted up along vertical to the shell 1 and be located between inlet channel 11 and the outlet channel 12, and the shell 1 is interior and be located inlet channel 11 and outlet channel 12 top and have circuit board 14 through the locking of screw, and this filter screen cleaning structure still includes the ultrasonic vibrator 3 that is the bar column, and its lower extreme passes installation passageway 13 and outlet channel 12 inner and stretches into in the filter screen 21, and its upper end realizes the spiro union with the internal thread cooperation on the installation passageway 13 inner wall and is fixed, and the upper end of ultrasonic vibrator 3 carries out the electricity through wire and circuit board 14 and is connected.

Working principle: when the dirt cleaning work is carried out, the water inlet channel 11 and the water outlet channel 22 are in an open state, the water outlet channel 12 is in a closed state, water flows downwards through the subsequent water pressure and the water outlet channel, water flows in the process through the water passing gap 6 and the yielding holes 231 and is discharged from the water outlet channel 22, the in-process flow stabilizing cover 23 and the rotating sleeve 5 are filled with water, the rotating sleeve 5 can be subjected to certain buoyancy when the flow stabilizing cover 23 is filled with water, the rotating sleeve 5 is enabled to circumferentially rotate by taking the annular edge 51 as a datum point along with the spiral flow direction of the water flow, at the moment, the rotating sleeve 5 is matched with the inner wall of the limiting holes 44 through the connecting columns 52 to drive the rotating frame 4 in the circumferential direction, so that the rotating frame 4 rotates around the filter screen 21, at the moment, the cleaning brush 41 abutted against the outer side surface of the filter screen 21 can continuously brush the outer side surface of the filter screen 21, impurities attached to the outer side surface of the filter screen 21 are peeled off along with the water flow and discharged from the water outlet channel 22, on the basis, the upper toothed ring 43 and the lower toothed ring 232 are matched with the water flow, the rotating frame 4 can be driven by the ultrasonic wave filter screen 4 to move along the rotating frame, and the ultrasonic filter screen can be driven to the filter screen 21 to move along the inner side of the filter screen, and the filter screen can be driven to move along the filter screen 2, and the filter screen can move along the filter screen 2 relatively to the inner side, and the filter screen can be relatively clean along the filter screen 2.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although terms such as the housing 1, the water inlet passage 11, the water outlet passage 12, the installation passage 13, the circuit board 14, the filter flask 2, the filter screen 21, the water discharge passage 22, the flow stabilizing cover 23, the relief hole 231, the lower toothed ring 232, the ultrasonic vibrator 3, the rotating frame 4, the cleaning brush 41, the water passing hole 42, the upper toothed ring 43, the limiting hole 44, the rotating sleeve 5, the annular rim 51, the connection post 52, the water passing gap 6, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims (7)

1. The utility model provides a filter screen cleaning structure of pre-filter, pre-filter is including shell (1) that has inlet channel (11) and play water channel (12), be equipped with the inner chamber in shell (1) with filter flask (2) of inlet channel (11) inner intercommunication, be equipped with in filter flask (2) and be tubular filter screen (21), just the inner of play water channel (12) with filter screen (21) inner chamber intercommunication, a serial communication port, filter flask (2) bottom has drainage channel (22), and filter screen cleaning structure includes ultrasonic vibrator (3) and swivel mount (4) that have cleaning brush (41), ultrasonic vibrator (3) electricity are connected in shell (1) and are stretched into in filter screen (21), swivel mount (4) swivelling joint in filter flask (2) and around filter screen (21) set up, just cleaning brush (41) with filter screen (21) surface offsets and pastes.

2. The filter screen cleaning structure of the pre-filter according to claim 1, wherein the rotating frame (4) is cylindrical and is provided with a plurality of water passing ports (42) arranged at intervals along the circumferential direction, and the cleaning brush (41) is provided with at least one group and extends from the upper end of the inner wall of the rotating frame (4) to the lower end of the inner wall of the rotating frame (4).

3. The filter screen cleaning structure of a prefilter according to claim 1 or 2, further comprising a rotating sleeve (5) having a gear shape and having two ends penetrating through, wherein the bottom of the rotating sleeve (5) is provided with an annular edge (51) inserted into the drain passage (22) and attached to the inner wall of the drain passage (22), and the top of the rotating sleeve (5) is provided with a connecting column (52) connected with the rotating frame (4).

4. A screen cleaning structure of a pre-filter according to claim 3, characterized in that the bottom of the filter flask (2) is provided with a steady flow cover (23) arranged around the rotating sleeve (5), the top of the steady flow cover (23) is provided with a yielding hole (231), and the connecting column (52) extends out of the yielding hole (231).

5. The filter screen cleaning structure of the pre-filter according to claim 4, wherein an upper toothed ring (43) protruding downwards is arranged at the bottom of the rotating frame (4), a lower toothed ring (232) protruding upwards is arranged at the top of the steady flow cover (23), and the upper toothed ring (43) is meshed with the lower toothed ring (232) and is arranged around the connecting column (52).

6. The filter screen cleaning structure of the pre-filter according to claim 4, wherein a polygonal limiting hole (44) is formed in the bottom of the rotating frame (4), the shape of the connecting column (52) is the same as that of the limiting hole (44) and is arranged in the limiting hole (44) in a penetrating manner, and a water passing gap (6) communicated with the yielding hole (231) is formed between the circumferential outer wall of the connecting column (52) and the circumferential inner wall of the limiting hole (44).

7. A filter screen cleaning structure of a prefilter according to claim 3, characterized in that a mounting channel (13) which is communicated with the cavity in the filter flask (2) is vertically formed in the housing (1) and is positioned above the filter flask (2), a circuit board (14) is connected in the housing (1), the ultrasonic vibrator (3) is screwed in the mounting channel (13) and extends into the filter screen (21), and the ultrasonic vibrator (3) is electrically connected with the circuit board (14).