CN221432292U - Laminated back flushing prefilter - Google Patents

Abstract

The utility model discloses a laminated back flush pre-filter, which comprises a machine head for water inlet and outlet and a filter bottle connected with the machine head, wherein a flow direction switching assembly is arranged in the machine head, a laminated skeleton and a moving mechanism are arranged in the filter bottle, the moving mechanism is arranged in the laminated skeleton, a laminated sheet is arranged on the outer side of the laminated skeleton, a filtering water through hole and a back flush water spray hole are arranged on the laminated skeleton, a flow direction switching hole is arranged on the moving mechanism, and the moving mechanism can movably open or close the filtering water through hole and close or open the flow direction switching hole through the flow direction switching assembly. The utility model can form excellent back flushing effect, can also achieve the effect that the ultra-large flux meets the requirements of users, brings very good experience to consumers, and realizes the effects that the water flow has higher flow velocity when the water flow flows in from outside to inside during filtering and can be filtered rapidly, and the water flow has higher pressure when the water flow flows out from inside to outside during back flushing and pollution discharge and can flush the impurities adhered to the lamination.

Description

Laminated back flushing prefilter

Technical Field

The utility model relates to the technical field of household water purification equipment, in particular to a laminated back flushing prefilter.

Background

When the existing laminated filter is used for filtering, water flows in from outside to inside, and the laminated filter blocks particulate impurities such as floaters, rust, silt and the like in the water; during back flushing, water flows out from inside to outside, and particles and sundries such as floaters, rust, silt and the like attached to the lamination are flushed. In order to meet the normal water requirement of users, the laminated filter needs to be ensured to have higher water flux during filtration, and in order to enable the laminated filter to be flushed with higher water pressure during back flushing, the filter needs small holes to increase back flushing pressure, the existing laminated filter cannot meet the requirements of filtration and back flushing at the same time, and a large number of small holes can only be used for achieving balance of the two. The developer also considered to use the macropores, but because the skeleton side is opened and is had the macropores, rivers are more dispersed from inside to outside, can not form high-pressure rivers to strike granule debris on the lamination, and the clearance grow between the lamination is accumulated for a long time to its filter fineness can not reach expected effect, influences filter life, brings bad experience for the consumer. Developers on the market are also considering that the efficiency of back flushing pollution discharge is improved through other pressurization modes.

Disclosure of utility model

The utility model aims to solve the technical problems and provide the laminated back flushing prefilter, which can form an excellent back flushing effect, can achieve that the ultra-large flux meets the requirements of users, brings very good experience to the consumers, and realizes the effects that the water flow can be filtered quickly when the water flow flows from outside to inside and the water flow can flow out from inside to outside when the water flow is filtered and the impurities attached to the lamination can be flushed when the back flushing blowdown is carried out.

The technical scheme adopted for solving the technical problems is as follows: the laminated back flushing prefilter comprises a machine head for water inlet and outlet and a filter flask connected with the machine head, wherein a flow direction switching assembly is arranged in the machine head, a laminated framework and a moving mechanism are arranged in the filter flask, the moving mechanism is arranged in the laminated framework, a laminated sheet is arranged on the outer side of the laminated framework, a filtering water hole and a back flushing water spraying hole are formed in the laminated framework, a flow direction switching hole is formed in the moving mechanism, the moving mechanism can movably open or close the filtering water hole, and the flow direction switching hole is closed or opened through the flow direction switching assembly; when the moving mechanism opens the filtering water through holes for filtering, the flow direction switching holes are blocked by the flow direction switching assembly to be closed; when the moving mechanism closes the filtering water through hole to back flush and blow down, the flow direction switching hole is communicated with the flow direction switching assembly to be opened. The filtering water through holes are large holes, the back flushing water spray holes are small holes, the large holes are large in flux for water to pass through, and one or more large holes can meet the normal water flow demands of users; the small holes are small in flux for water to pass through, and the same water flow can generate large flow velocity due to flowing out of the small holes, so that the effect of flushing the laminated sheet at higher pressure can be achieved. In the utility model, the filtering water through hole and the back flush water spray hole can be communicated into one hole or can be separated into two holes, when the filtering water through hole and the back flush water spray hole are communicated into one hole, the moving mechanism can movably open or close the filtering water through hole, but one side of the communicated back flush water spray hole is still open.

Preferably, the moving mechanism comprises a grating switching framework arranged in the laminated framework and a drain assembly capable of moving up and down, the grating switching framework is provided with a flow direction switching hole, the drain assembly comprises a drain shaft connected with the grating switching framework, and the drain shaft can move up and down to drive the grating switching framework to open or close the filtering water through hole and close or open the flow direction switching hole through the flow direction switching assembly.

Preferably, the grid switching framework is provided with a first through hole and a second through hole, the second through hole is communicated with the backwashing water spray holes, and the grid switching framework can align or stagger the first through hole with the filtering water spray holes.

Preferably, the flow direction switching assembly comprises a flow direction switching seat and a flow direction switching cover arranged below the flow direction switching seat, the flow direction switching seat comprises a seat body and a first pipe body arranged in the middle, a third through hole is formed between the seat body and the first pipe body, the flow direction switching cover comprises a cover body and a second pipe body arranged in the middle, a grid switching framework penetrates through the second pipe body and then is inserted into the first pipe body, and the flow direction switching hole is blocked or exposed by the second pipe body.

Preferably, a framework seat is arranged on the grid switching framework, a fourth through hole is arranged on the side face of the flow direction switching seat, and the framework seat can movably open or close the fourth through hole. When in a filtering state, the framework seat compresses the flow direction switching cover at the lower part so that the lamination is compressed, and the fourth through hole is opened; when in a pollution discharge state, the framework seat moves upwards, so that the flow direction switching cover releases the lamination and the fourth through hole is closed.

Preferably, the frame seat is provided with a first hook portion, the flow direction switching cover is provided with a second hook portion, and the second hook portion is arranged above the first hook portion. Through the setting of first hook and second hook for when the skeleton stand moved up, first hook and second hook card were established, make the skeleton stand unable to move up, prevent that the blowdown axle from deviating from the blowdown seat.

Preferably, a fifth through hole is formed in the bottom of the skeleton base, and the fifth through hole is communicated with the flow direction switching hole in a pollution discharge state. When in a filtering state, the bottom of the framework seat is arranged on the flow direction switching cover, and the fifth through hole and the flow direction switching hole are closed; when the sewage is discharged, the framework seat moves upwards, the fifth through hole and the flow direction switching hole are opened, and water flows into the grid switching framework through the fifth through hole and the flow direction switching hole after passing through the water inlet pipe.

Preferably, the sewage disposal assembly further comprises a sewage disposal seat and a sewage disposal knob, wherein the sewage disposal seat is arranged in the sewage disposal knob and is clamped with the sewage disposal knob, and the sewage disposal seat is in threaded connection with the sewage disposal shaft. Through above-mentioned technical scheme, when rotatory blowdown knob, the blowdown seat is established by the card, and the blowdown axial of threaded connection with the blowdown seat reciprocates to with the grid switch skeleton reciprocates.

Preferably, the drain shaft is provided with a drain hole, the filter flask is internally provided with a narrow opening, and the drain hole can extend out of the narrow opening or retract into the narrow opening along with the drain shaft. According to the technical scheme, when the filter is in a filtering state, the filter flask is sealed by the sewage draining shaft in the sewage draining Kong Suru narrow opening, water flows from the water inlet pipe of the machine head into the filter flask after passing through the third through hole and the fourth through hole, and after passing through the filtering water through holes and the first through hole, the back flushing water spraying hole and the second through hole after being filtered by the lamination, the water flows upwards from the water outlet pipe of the machine head due to the fact that the lower filter flask narrow opening is sealed by the sewage draining shaft; when in a sewage draining state, the sewage draining knob is rotated, the sewage draining shaft moves upwards, the sewage draining hole is exposed from the narrow opening, the flow direction switching hole is exposed from the second pipe body, water flow enters the grating switching framework from the water inlet pipe of the machine head through the flow direction switching hole, at the moment, the first through hole on the grating switching framework is staggered with the filtering water through hole, the water flow sprays the lamination from the second through hole and the back flushing water spraying hole, and sewage is discharged after flowing into the sewage draining hole from the filter flask.

Preferably, the grid switching framework is provided with an inner ring, the sewage draining shaft is provided with a bump, and the bump is clamped with the inner ring after the sewage draining shaft is inserted into the inner ring. Through the arrangement of the inner ring and the convex blocks, the sewage draining shaft is clamped with the rotary framework, and the rotary framework and the sewage draining shaft cannot be separated.

Preferably, the machine head comprises a water inlet pipe, a water outlet pipe, a runner piece and a copper head, wherein the runner piece is respectively connected with the water inlet pipe and the water outlet pipe, a runner pipe is arranged on the runner piece and is communicated with the water inlet pipe, the runner pipe is arranged above the flow direction switching seat, and the water inlet pipe, the water outlet pipe and the runner piece are all arranged in the copper head. The water inlet pipe, the water outlet pipe and the runner piece are protected by copper heads, so that the service life and the texture of the product are prolonged; through the runner pipe arrangement on the runner piece, the rivers get into the back from the inlet tube.

Preferably, the first pipe body is provided with a first groove at the outer side, and the runner piece is clamped in the first groove. Through the first groove setting, fix the runner piece, prevent to lead to runner piece and the flow direction to switch the seat and take place the deviation because of the rivers impact.

The utility model has the beneficial effects that:

1. The utility model can form excellent back flushing effect, can also achieve the effect that the ultra-large flux meets the requirements of users, brings very good experience to consumers, and realizes the effects that the water flow has higher flow rate when the water flow flows in from outside to inside during filtering and can be filtered quickly, and the water flow has higher pressure when the water flow flows out from inside to outside during back flushing and pollution discharge and can flush the impurities attached to the lamination;

2. The utility model overcomes the technical bias of increasing the back flushing pressure by adopting other pressurizing modes in the current market, and the technical route in the market is in disorder and reverse under the conditions of reducing the cost and simplifying the technical mode under the condition of simultaneously meeting the requirements of filtering and back flushing;

3. The utility model realizes sewage discharge and back flushing by rotating the sewage discharge knob, and has simple operation.

Drawings

Fig. 1 is a schematic view of the structure of the filtering state of the present utility model.

Fig. 2 is a cross-sectional view taken along A-A of fig. 1.

Fig. 3 is a schematic view of the structure of the sewage disposal state of the present utility model.

Fig. 4 is a cross-sectional view of fig. 3 taken along the direction B-B.

Fig. 5 is a schematic structural view of a laminated armature.

Fig. 6 is a schematic structural diagram of a grille switching skeleton.

Fig. 7 is a schematic view of another view of the grating switching skeleton.

Fig. 8 is a schematic structural view of the drain shaft.

FIG. 9 is a schematic diagram of a drain shaft and grille switching framework.

Fig. 10 is a schematic structural diagram of the flow direction switching assembly and the grid switching framework.

Fig. 11 is a schematic structural view of the flow direction switching assembly.

Fig. 12 is a schematic structural view of the flow direction switching seat.

Fig. 13 is a schematic structural view of the flow direction switching cover.

Fig. 14 is a schematic structural view of the water inlet pipe, the water outlet pipe and the runner.

In the figure: 1. the filter head comprises a head body, 11, a water inlet pipe, 12, a water outlet pipe, 13, a runner piece, 131, a runner pipe, 14, a copper head, 2, a filter bottle, 21, a narrow opening, 3, a flow direction switching assembly, 31, a flow direction switching seat, 311, a seat body, 312, a first pipe body, 3121, a first groove, 313, a third through hole, 314, a fourth through hole, 32, a flow direction switching cover, 321, a cover body, 322, a second pipe body, 323, a second hook part, 4, a laminated frame, 41, a filtering water through hole, 42, a back flushing water spraying hole, 5, a laminated, 6, a grating switching frame, 61, a flow direction switching hole, 62, a first through hole, 63, a second through hole, 64, a frame seat, 641, a first hook part, 642, a fifth through hole, 65, an inner ring, 7, a sewage discharging assembly, 71, a sewage shaft, 711, a sewage discharging hole, 712, a bump, 72, a sewage seat, 73, a sewage knob, 731, a second groove, 74, a sewage discharging sleeve, 741 and a boss.

Detailed Description

The utility model is further described below with reference to the drawings and embodiments.

As shown in fig. 1-14, the laminated back flush prefilter of the present utility model comprises a machine head 1 for water inlet and outlet, a filter flask 2 connected with the machine head 1, a flow direction switching assembly 3 arranged in the machine head 1, a laminated frame 4 arranged in the filter flask 2, and a moving mechanism arranged in the laminated frame 4, wherein the laminated frame 4 is provided with a laminated 5 on the outer side, the laminated frame 4 is provided with a filtering water through hole 41 and a back flush water spray hole 42, the moving mechanism is provided with a flow direction switching hole 61, and the moving mechanism can movably open or close the filtering water through hole 41 and close or open the flow direction switching hole 61 through the flow direction switching assembly 3.

The moving mechanism comprises a grating switching framework 6 and a drain assembly 7 which can move up and down, wherein the grating switching framework 6 is arranged in the laminated framework 4, the drain assembly 7 comprises a drain shaft 71 which is connected with the grating switching framework 6, the drain shaft 71 can move up and down to drive the grating switching framework 6 to open or close the filtering water through hole 41, and the drain assembly 3 can close or open the drain assembly 61.

The grid switching framework 6 is provided with a first through hole 62 and a second through hole 63, one second through hole 63 is communicated with a plurality of back flushing water spray holes 42, and the grid switching framework 6 can movably align or stagger the first through hole 62 with the filtering water spray holes 41.

The flow direction switching assembly 3 comprises a flow direction switching seat 31 and a flow direction switching cover 32 arranged below the flow direction switching seat 31, the flow direction switching seat 31 comprises a seat body 311 and a first pipe body 312 arranged in the middle, a third through hole 313 is arranged between the seat body 311 and the first pipe body 312, the flow direction switching cover 32 comprises a cover body 321 and a second pipe body 322 arranged in the middle, the grid switching framework 6 penetrates through the second pipe body 322 and then is inserted into the first pipe body 312, and the flow direction switching hole 61 is blocked or exposed by the second pipe body 322.

The grid switching framework 6 is provided with a framework seat 64, the side surface of the flow direction switching seat 31 is provided with a fourth through hole 314, and the framework seat 64 can movably open or close the fourth through hole 314.

The frame mount 64 is provided with a first hook 641, the flow direction switching cover 32 is provided with a second hook 323, and the second hook 323 is provided above the first hook 641.

The sewage assembly 7 further comprises a sewage seat 72 and a sewage knob 73, wherein the sewage seat 72 is arranged in the sewage knob 73 and is clamped with the sewage knob 73, and the sewage seat 72 is in threaded connection with the sewage shaft 71.

The drain shaft 71 is provided with a drain hole 711, the filter flask 2 is internally provided with a narrow opening 21, and the drain hole 711 can extend out of the narrow opening 21 or retract into the narrow opening 21 along with the drain shaft 71.

The grating switching framework 6 is provided with an inner ring 65, the sewage draining shaft 71 is provided with a convex block 712, and the convex block 712 is clamped with the inner ring 65 after the sewage draining shaft 71 is inserted into the inner ring 65.

The machine head 1 comprises a water inlet pipe 11, a water outlet pipe 12, a runner piece 13 and a copper head 14, wherein the runner piece 13 is respectively connected with the water inlet pipe 11 and the water outlet pipe 12, a runner pipe 131 is arranged on the runner piece 13, the runner pipe 131 is communicated with the water inlet pipe 11, the runner pipe 131 is arranged above a flow direction switching seat 31, and the water inlet pipe 11, the water outlet pipe 12 and the runner piece 13 are all arranged in the copper head 14.

The bottom of the frame seat 64 is provided with a fifth through hole 642, and the fifth through hole 642 is communicated with the flow direction switching hole 61 in a sewage discharge state.

The first pipe 312 has a first groove 3121 on the outer side thereof, and the runner 13 is engaged in the first groove 3121.

The outside of the flow direction switching seat 31 is provided with a drain sleeve 74, the drain sleeve 74 is in threaded connection with the filter flask 2, the outside of the drain knob 73 is provided with a second groove 731, the lower side of the drain sleeve 74 is provided with a protruding part 741, and the protruding part 741 is clamped in the second groove 731.

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected or indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing the utility model based on the orientation or positional relationship shown in the drawings, and are not to be construed as limiting the utility model, as the indicating device or element must have a particular orientation, be constructed and operated in a particular orientation.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating relative importance or indicating the number of technical features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Claims (10)

1. The utility model provides a lamination formula back flush prefilter which characterized in that: including aircraft nose (1) that are used for business turn over water, filter flask (2) that are connected with aircraft nose (1), be equipped with flow direction switching assembly (3) in aircraft nose (1), be equipped with lamination skeleton (4) and mobile mechanism in filter flask (2), mobile mechanism establishes in lamination skeleton (4), lamination skeleton (4) outside is equipped with lamination (5), be equipped with filtration water hole (41) and back flush hole (42) on lamination skeleton (4), be equipped with flow direction switching hole (61) on the mobile mechanism, mobile mechanism is mobilizable to open or close filtration water hole (41) and to close or open flow direction switching hole (61) through flow direction switching assembly (3).

2. The laminated backwash pre-filter according to claim 1 wherein: the moving mechanism comprises a grating switching framework (6) arranged in the laminated framework (4) and a drain assembly (7) capable of moving up and down, a flow direction switching hole (61) is formed in the grating switching framework (6), the drain assembly (7) comprises a drain shaft (71) connected with the grating switching framework (6), the drain shaft (71) can move up and down to drive the grating switching framework (6) to open or close the filtering water through hole (41) and close or open the flow direction switching hole (61) through the flow direction switching assembly (3).

3. The laminated backwash pre-filter according to claim 2 wherein: the grid switching framework (6) is provided with a first through hole (62) and a second through hole (63), one second through hole (63) is communicated with a plurality of back flushing water spraying holes (42), and the grid switching framework (6) can movably align or stagger the first through hole (62) with the filtering water through holes (41).

4. A laminated backwash pre-filter according to claim 2 or 3, characterised in that: the flow direction switching assembly (3) comprises a flow direction switching seat (31) and a flow direction switching cover (32) arranged below the flow direction switching seat (31), the flow direction switching seat (31) comprises a seat body (311) and a first pipe body (312) arranged in the middle, a third through hole (313) is formed between the seat body (311) and the first pipe body (312), the flow direction switching cover (32) comprises a cover body (321) and a second pipe body (322) arranged in the middle, a grid switching framework (6) penetrates through the second pipe body (322) and then is inserted into the first pipe body (312), and the flow direction switching hole (61) is blocked or exposed by the second pipe body (322).

5. The laminated backwash pre-filter as claimed in claim 4 wherein: the grid switching framework (6) is provided with a framework seat (64), the side surface of the flow direction switching seat (31) is provided with a fourth through hole (314), and the framework seat (64) can movably open or close the fourth through hole (314).

6. The laminated backwash pre-filter of claim 5 wherein: the frame seat (64) is provided with a first hook (641), the flow direction switching cover (32) is provided with a second hook (323), and the second hook (323) is arranged above the first hook (641).

7. The laminated backwash pre-filter according to claim 2 or 3 or 5 or 6, wherein: the sewage disposal assembly (7) further comprises a sewage disposal seat (72) and a sewage disposal knob (73), the sewage disposal seat (72) is arranged in the sewage disposal knob (73) and is clamped with the sewage disposal knob (73), and the sewage disposal seat (72) is in threaded connection with the sewage disposal shaft (71).

8. The laminated backwash pre-filter as claimed in claim 7 wherein: the drain shaft (71) is provided with a drain hole (711), the filter flask (2) is internally provided with a narrow opening (21), and the drain hole (711) can extend out of the narrow opening (21) or retract into the narrow opening (21) along with the drain shaft (71).

9. The laminated backwash pre-filter of claim 8 wherein: an inner ring (65) is arranged on the grid switching framework (6), a lug (712) is arranged on the sewage draining shaft (71), and the lug (712) is clamped with the inner ring (65) after the sewage draining shaft (71) is inserted into the inner ring (65).

10. The laminated backwash pre-filter as claimed in claim 4 wherein: the machine head (1) comprises a water inlet pipe (11), a water outlet pipe (12), a runner piece (13) and a copper head (14), wherein the runner piece (13) is respectively connected with the water inlet pipe (11) and the water outlet pipe (12), a runner pipe (131) is arranged on the runner piece (13), the runner pipe (131) is communicated with the water inlet pipe (11), the runner pipe (131) is arranged above a flow direction switching seat (31), and the water inlet pipe (11), the water outlet pipe (12) and the runner piece (13) are all arranged in the copper head (14).