CN220758197U - Combined pretreatment filter element - Google Patents

Abstract

The utility model discloses a combined pretreatment filter element, which comprises a cylinder body, wherein the bottom end of the cylinder body is connected with a bottom cover through screw thread rotation, the top end of the cylinder body is connected with a top cover through screw thread rotation, an annular plate is fixed inside the bottom end of the top cover, the surface of the annular plate is fixedly connected with a filtering structure, and the top end of the side wall of the cylinder body is fixedly connected with a water inlet pipe. According to the utility model, the barrel, the bottom cover, the top cover, the filtering structure, the back flushing pipe, the brush and the motor are arranged, the filtering structure is screwed at the bottom end of the top cover through threads, and the top cover and the bottom cover are respectively screwed at the top end and the bottom end of the barrel through threads, so that the components of each part of the filter element can be quickly combined and detached. And when the filter screen of this filter core appears blockking up, can twist off the bottom, then back flush to the filter screen through the recoil pipe, drive the brush to rotate to scrub the filter screen in cooperation with the motor, can realize the self-cleaning of filter screen, improve the convenience of use.

Description

Combined pretreatment filter element

Technical Field

The utility model relates to the technical field of water purifiers, in particular to a combined pretreatment filter element.

Background

The water purifier is also called a water purifier and a water quality purifier, and is water treatment equipment for carrying out deep filtration and purification treatment on water according to the use requirement of water. The water purifier generally refers to a small-sized purifier used in home. The technical core is a filter membrane in the filter element device, and the main technology is derived from three types of ultrafiltration membranes, RO reverse osmosis membranes and nanofiltration membranes.

Usually, a filter is adopted to pretreat water before the water purifier is used for purifying the water, so that large-particle impurities in the water can be removed. However, the filter element of the existing filter is generally of an integral structure, and with the use of the filter, the filter screen in the filter element can be blocked to different degrees, so that the water passing efficiency is reduced. Therefore, the filter element in the filter needs to be manually and periodically disassembled for cleaning, but each disassembly and cleaning are relatively time-consuming, so the utility model provides the combined pretreatment filter element capable of being automatically cleaned.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a combined pretreatment filter element.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a modular pretreatment filter core, includes the barrel, the barrel bottom is connected with the bottom through the screw thread rotation, the barrel top is connected with the top cap through the screw thread rotation, top cap bottom internal fixation has the annular plate, annular plate fixedly connected with filtration, barrel lateral wall top fixedly connected with inlet tube, top cap middle part fixedly connected with drain pipe, the drain pipe top is fixed with the three-way pipe, other both ends of three-way pipe are fixedly connected with outlet pipe and recoil pipe respectively, the top cap bottom is equipped with the scrubbing structure who washs filtration, the top cap middle part is equipped with the rotatory drive structure of drive scrubbing structure.

Further, annular grooves are formed in the top end and the bottom end of the side wall of the cylinder body, and sealing rings are clamped in the annular grooves. The sealing ring can increase the tightness of the top cover, the bottom cover and the cylinder body after being connected.

Further, the filtering structure comprises a filtering cylinder, a plurality of openings are formed in the side wall of the filtering cylinder, and a filtering screen is fixed on the inner wall of the filtering cylinder. The filter screen can filter large particle impurities in water.

Furthermore, valves are fixedly connected to the middle parts of the water inlet pipe, the water outlet pipe and the backflushing pipe. The water inlet pipe, the water outlet pipe and the backflushing pipe can be opened or closed through the valve.

Further, brushing structure is including being fixed in two connecting rods of annular plate inner wall, two connecting rod adjacent end fixedly connected with sleeve jointly, the inside rotation of sleeve is connected with the vertical axis, vertical axis bottom mounting has the horizontal pole, the recess has all been seted up at the horizontal pole both ends, the inside sliding connection of recess has the telescopic link, the one end fixedly connected with brush that the telescopic link is located outside the recess. The filter screen of the filter structure can be brushed by the brush.

Further, the telescopic rod and the inner wall of the groove are fixedly connected with a spring. The telescopic rod is pushed outwards to move towards the groove through the elasticity of the spring, so that the hairbrush can be attached to the surface of the filter screen.

Further, the driving structure comprises a motor fixed on the upper surface of the top cover, a driving shaft at the bottom of the motor penetrates through the top cover and is fixedly connected with a driving gear, the top end of the vertical shaft is fixedly connected with a driven gear, and the driving gear is meshed with the driven gear. Therefore, the motor can drive the hairbrush to rotate, and the filter screen can be brushed.

The utility model has the beneficial effects that:

when the filter element is used, the filter structure, the back flushing pipe, the brush and the motor are arranged, the filter structure is screwed at the bottom end of the top cover through threads, and the top cover and the bottom cover are screwed at the top end and the bottom end of the cylinder respectively through threads, so that the assembly and the disassembly of all parts of the filter element can be realized rapidly. And when the filter screen of this filter core appears blockking up, can twist off the bottom, then back flush to the filter screen through the recoil pipe, drive the brush to rotate to scrub the filter screen in cooperation with the motor, can realize the self-cleaning of filter screen, improve the convenience of use.

Drawings

FIG. 1 is an overall cross-sectional view of the present utility model;

FIG. 2 is a perspective view of a filter structure of the present utility model;

fig. 3 is an enlarged view at a in fig. 1.

Legend description:

1. a cylinder; 2. a bottom cover; 3. a top cover; 4. an annular plate; 5. a filtering structure; 51. a filter cartridge; 52. an opening; 53. a filter screen; 6. a seal ring; 7. a water inlet pipe; 8. a drain pipe; 9. a three-way pipe; 10. a water outlet pipe; 11. a backwash tube; 12. a brush; 13. a connecting rod; 14. a sleeve; 15. a vertical axis; 16. a cross bar; 17. a groove; 18. a telescopic rod; 19. a spring; 20. a driven gear; 21. a motor; 22. a driving gear.

Detailed Description

As shown in fig. 1-3, the combined pretreatment filter element comprises a barrel 1, the bottom end of the barrel 1 is connected with a bottom cover 2 through screw thread rotation, the top end of the barrel 1 is connected with a top cover 3 through screw thread rotation, an annular plate 4 is fixed inside the bottom end of the top cover 3, a filtering structure 5 is fixedly connected to the surface of the annular plate 4, a water inlet pipe 7 is fixedly connected to the top end of the side wall of the barrel 1, a water outlet pipe 10 and a backflushing pipe 11 are fixedly connected to the middle part of the top cover 3, a three-way pipe 9 is fixed to the top end of the water outlet pipe 8, two ends of the three-way pipe 9 are respectively fixedly connected with the water outlet pipe 10 and the backflushing pipe 11, a brushing structure for cleaning the filtering structure 5 is arranged at the bottom end of the top cover 3, and a driving structure for driving the brushing structure to rotate is arranged in the middle of the top cover 3. Valves are fixedly connected to the middle parts of the water inlet pipe 7, the water outlet pipe 10 and the backwash pipe 11. The water inlet pipe 7, the water outlet pipe 10 and the backflushing pipe 11 can be opened or closed by valves on the water inlet pipe 7, the water outlet pipe 10 and the backflushing pipe 11.

As shown in fig. 1, annular grooves are formed in the top end and the bottom end of the side wall of the cylinder body 1, and sealing rings 6 are clamped in the annular grooves. The sealing performance of the joint of the top cover 3, the bottom cover 2 and the cylinder body 1 can be improved through the sealing ring 6.

As shown in fig. 1 and 2, the filtering structure 5 includes a filtering cylinder 51, a plurality of openings 52 are formed in the side wall of the filtering cylinder 51, and a filtering screen 53 is fixed on the inner wall of the filtering cylinder 51. Large particle impurities in the water can be filtered through the filter 53. When the filter structure 5 needs to be replaced, the filter structure 5 can be directly screwed off the annular plate 4 for replacement.

As shown in fig. 1 and 3, the brushing structure comprises two connecting rods 13 fixed on the inner wall of the annular plate 4, the adjacent ends of the two connecting rods 13 are fixedly connected with a sleeve 14, a vertical shaft 15 is rotatably connected inside the sleeve 14, a cross rod 16 is fixed at the bottom end of the vertical shaft 15, grooves 17 are formed in two ends of the cross rod 16, telescopic rods 18 are slidably connected inside the grooves 17, and one end, located outside the grooves 17, of each telescopic rod 18 is fixedly connected with a brush 12. The telescopic rod 18 and the inner wall of the groove 17 are fixedly connected with a spring 19. Under the elastic force of the spring 19, the brush 12 can be tightly attached to the filter screen 53 of the filter structure 5.

As shown in fig. 1 and 3, the driving structure comprises a motor 21 fixed on the upper surface of the top cover 3, a driving shaft at the bottom of the motor 21 penetrates through the top cover 3 and is fixedly connected with a driving gear 22, the top end of the vertical shaft 15 is fixedly connected with a driven gear 20, and the driving gear 22 is meshed with the driven gear 20. Under the transmission of the driving gear 22 and the driven gear 20, the motor 21 can drive the vertical shaft 15, the cross rod 16 and the brush 12 to rotate, and the brush 12 is utilized to brush the filter screen 53.

Working principle: when the water purifier is in normal use, the valve on the back flushing pipe 11 is closed, the valves on the water inlet pipe 7 and the water outlet pipe 10 are opened, water enters the barrel 1 from the water inlet pipe 7, is filtered by the filter screen 53, and is discharged from the water outlet pipe 10 through the water outlet pipe 8, so that the pretreatment of the water is realized. When the filter screen 53 needs to be cleaned, the valves on the water inlet pipe 7 and the water outlet pipe 10 are closed, the valves on the back flushing pipe 11 are opened, the bottom cover 2 is screwed off, the back flushing pipe 11 is used for flushing water into the filter cylinder 51, meanwhile, the motor 21 is started, the motor 21 is used for driving the brush 12 to rotate, the brush 12 brushes the filter screen 53, and therefore the automatic cleaning of the filter structure 5 is achieved, and after the cleaning is finished, the bottom cover 2 is screwed on.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (7)

1. The utility model provides a modular pretreatment filter core, includes barrel (1), its characterized in that: barrel (1) bottom is connected with bottom (2) through the screw thread rotation, barrel (1) top is connected with top cap (3) through the screw thread rotation, top cap (3) bottom internal fixation has annular plate (4), annular plate (4) fixedly connected with filtration (5), barrel (1) lateral wall top fixedly connected with inlet tube (7), top cap (3) middle part fixedly connected with drain pipe (8), drain pipe (8) top is fixed with three-way pipe (9), other both ends of three-way pipe (9) are fixedly connected with outlet pipe (10) and recoil pipe (11) respectively, top cap (3) bottom is equipped with the scrubbing structure of wasing filtration (5), top cap (3) middle part is equipped with the rotatory drive structure of drive scrubbing structure.

2. A combined pretreatment cartridge according to claim 1, wherein: annular grooves are formed in the top end and the bottom end of the side wall of the cylinder body (1), and sealing rings (6) are clamped in the annular grooves.

3. A combined pretreatment cartridge according to claim 1, wherein: the filter structure (5) comprises a filter cylinder (51), a plurality of openings (52) are formed in the side wall of the filter cylinder (51), and a filter screen (53) is fixed on the inner wall of the filter cylinder (51).

4. A combined pretreatment cartridge according to claim 1, wherein: valves are fixedly connected to the middle parts of the water inlet pipe (7), the water outlet pipe (10) and the backflushing pipe (11).

5. A combined pretreatment cartridge according to claim 1, wherein: the brushing structure comprises two connecting rods (13) fixed on the inner wall of the annular plate (4), two connecting rods (13) are fixedly connected with sleeves (14) at adjacent ends, vertical shafts (15) are connected to the inner parts of the sleeves (14) in a rotating mode, transverse rods (16) are fixed to the bottom ends of the vertical shafts (15), grooves (17) are formed in two ends of each transverse rod (16), telescopic rods (18) are connected to the inner parts of the grooves (17) in a sliding mode, and brushes (12) are fixedly connected to one ends of the telescopic rods (18) located outside the grooves (17).

6. A combined pretreatment cartridge according to claim 5, wherein: the telescopic rod (18) and the inner wall of the groove (17) are fixedly connected with a spring (19) together.

7. A combined pretreatment cartridge according to claim 5, wherein: the driving structure comprises a motor (21) fixed on the upper surface of the top cover (3), a driving shaft at the bottom of the motor (21) penetrates through the top cover (3) and is fixedly connected with a driving gear (22), the top end of the vertical shaft (15) is fixedly connected with a driven gear (20), and the driving gear (22) is meshed with the driven gear (20).