CN221906157U - Full-automatic double-net sewage-discharging pre-filter - Google Patents

Abstract

The utility model relates to the technical field of pre-filters, in particular to a fully automatic double-net sewage discharge pre-filter, comprising a motor assembly, a head assembly, a filter assembly and a sewage discharge assembly, wherein the motor assembly comprises a motor-driven telescopic rod, the head assembly comprises a filter bottle body, the filter assembly comprises an outer skeleton, an outer filter, rotating blades, scrapers, an inner skeleton and an inner filter, and the sewage discharge assembly comprises a switch shaft, a sealing cover and a pressure spring. The utility model can realize automatic sewage discharge processing of the filter, reduce maintenance costs and extend maintenance cycles.

Description

A fully automatic double-net sewage pre-filter

Technical Field

The utility model relates to the technical field of pre-filters, and specifically relates to a full-automatic double-net sewage discharge pre-filter.

Background Art

Since municipal tap water may contain rust, silt and other problems, a pre-filter is usually installed on the household pipe. The pre-filter in the prior art includes: a machine head, a filter bottle connected to the machine head at the upper end, and a drainage channel connected to the lower end of the filter bottle. A filter mesh frame is provided in the filter bottle, and a filter mesh is provided on the outer wall of the filter mesh frame. During use, water flows from the water inlet of the machine head into the gap between the filter bottle and the filter mesh, flows into the center of the filter mesh frame after being filtered by the filter mesh, and then flows from the center of the filter mesh frame to the water outlet of the machine head. The existing filter element assembly will become clogged after long-term use and needs to be replaced or cleaned. The limitation of the filter element is that the filter element must be disassembled for cleaning, which is quite time-consuming and laborious.

Utility Model Content

In view of the deficiencies in the prior art, the utility model aims to provide a fully automatic double-net sewage pre-filter.

To achieve the above purpose, the utility model provides the following technical solutions: a fully automatic double-net sewage pre-filter, including a motor assembly, a head assembly, a filter assembly and a sewage assembly, the motor assembly includes a motor-driven telescopic rod, the head assembly includes a filter bottle body, the filter assembly includes an outer frame, an outer filter, a rotating blade, a scraper, an inner frame and an inner filter, the sewage assembly includes a switch shaft, a sealing cover and a pressure spring,

The upper end of the filter bottle body is provided with a through hole penetrating to the bottom of the filter bottle body, the motor assembly is mounted on the upper end of the filter bottle body, and the motor-driven telescopic rod of the motor assembly extends from the upper end of the through hole of the filter bottle body into the filter bottle body.

The inner filter is mounted on the inner frame, the upper end of the inner frame is matched with the upper water outlet of the filter bottle body, the scraper is mounted on the outer side of the outer filter, the outer filter is mounted on the outer frame, the outer frame is sleeved on the outer side of the inner filter, the rotating blade is mounted on the upper end of the frame, and the rotating blade sleeve is rotatably mounted on the upper end of the inner frame.

The switch shaft is installed at the lower end of the through hole of the filter bottle body, and the upper end of the switch shaft extends into the filter bottle body and cooperates with the lower end of the motor-driven telescopic rod, the lower end of the switch shaft is sealed with the lower end side wall of the through hole of the filter bottle body, the sealing cover is arranged in the filter bottle body, and contacts and seals with the lower end openings of the outer frame and the inner frame, the pressure spring is installed in the filter bottle body and is located between the sealing cover and the through hole of the filter bottle body, and the sealing cover is fixedly connected to the switch shaft.

In some of the embodiments, a plurality of siphon grooves are vertically arranged on the inner wall of the outer frame, and the lower ends of the siphon grooves are flush with the lower end of the external bracket.

In some of the embodiments, a water channel booster is provided at the water inlet in the filter bottle body at the front end of the rotating blade.

In some of the embodiments, sealing rings are provided between the side of the motor-driven telescopic rod and the upper side wall of the through hole of the filter bottle body and between the lower end of the switch shaft and the lower side wall of the through hole of the filter bottle body.

In some embodiments, the cross-sectional diameter of a section from the lower end to the middle of the switch shaft is smaller than the overall cross-sectional diameter of the switch shaft.

In some of the embodiments, the motor assembly also includes a control board, limit switch 1 and limit switch 2, the control board is connected to the control end of the motor assembly, the signal ends of limit switch 1 and limit switch 2 are connected to the input end of the control board, limit switch 1 and limit switch 2 are installed in an up and down manner on the motor assembly at the motor drive telescopic rod, and a limit block is arranged on the motor drive telescopic rod between limit switch 1 and limit switch 2.

In some embodiments, the distance between the limit switch 1 and the limit switch 2 is the rod length of the small end cross-section diameter on the switch shaft.

The mesh openings of the outer filter are larger than the mesh openings of the inner filter.

Compared with the prior art, the utility model has the beneficial effect that, through the cooperation of the motor drive and the filter screen rotation structure, the impurities in the filter can be discharged regularly, thereby extending the filter maintenance cycle and reducing labor costs.

Details of one or more embodiments of the present application are presented in the following drawings and descriptions to make other features, purposes and advantages of the present application more concise and easy to understand. The present application is fully described and understood through the embodiments of the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is an overall cross-sectional view of the utility model;

FIG2 is a schematic diagram of the structure of the filter assembly of the present invention;

FIG3 is a front view of the filter assembly of the present invention;

FIG4 is an exploded view of the filter assembly of the present invention;

FIG5 is an exploded view of the inner filter of the present invention;

FIG6 is a schematic diagram of the outer skeleton structure of the present invention;

FIG7 is a top cross-sectional view of the filter mechanism of the present invention;

FIG8 is a sewage discharge view of the filter of the present invention.

In the figure: 1. Motor assembly; 2. Motor-driven telescopic rod; 3. Filter bottle body; 4. External frame; 5. External filter; 6. Rotating blades; 7. Scraper; 8. Internal frame; 9. Internal filter; 10. Switch shaft; 11. Sealing cover; 12. Pressure spring; 13. Through hole; 14. Water channel booster; 15. Control panel; 16. Limit switch 1; 17. Limit switch 2; 18. Limit block; 19. Siphon trough.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1-8. The utility model provides a technical solution: a fully automatic double-net sewage pre-filter, including a motor component 1, a head component, a filter component and a sewage component, the motor component 1 includes a motor-driven telescopic rod 2, the head component includes a filter bottle body 3, the filter component includes an outer frame 4, an outer filter 5, a rotating blade 6, a scraper 7, an inner frame 8 and an inner filter 9, the sewage component includes a switch shaft 10, a sealing cover 11 and a pressure spring 12,

The upper end of the filter bottle body 3 is provided with a through hole 13 penetrating to the bottom of the filter bottle body 3, the motor assembly 1 is mounted on the upper end of the filter bottle body 3, and the motor-driven telescopic rod 2 of the motor assembly 1 extends from the upper end of the through hole 13 of the filter bottle body 3 into the filter bottle body 3.

The inner filter 9 is mounted on the inner frame 8, the upper end of the inner frame 8 is matched with the upper water outlet of the filter bottle body 3, the scraper 7 is mounted on the outer side of the outer filter 5, the outer filter 5 is mounted on the outer frame 4, the outer frame 4 is sleeved on the outer side of the inner filter 9, the rotating blade 6 is mounted on the upper end of the frame, and the rotating blade 6 is sleeved and rotatably mounted on the upper end of the inner frame 8,

The switch shaft 10 is installed at the lower end of the through hole 13 of the filter bottle body 3, and the upper end of the switch shaft 10 extends into the filter bottle body 3 and cooperates with the lower end of the motor-driven telescopic rod 2. The lower end of the switch shaft 10 is sealed with the lower end side wall of the through hole 13 of the filter bottle body 3. The sealing cover 11 is arranged in the filter bottle body 3 and contacts and seals with the lower end openings of the outer frame 4 and the inner frame 8. The pressure spring 12 is installed in the filter bottle body 3 and is located between the sealing cover 11 and the through hole 13 of the filter bottle body 3. The sealing cover 11 is fixedly connected to the switch shaft 10.

A plurality of siphon grooves 19 are vertically arranged on the inner wall of the outer frame 4, and the lower ends of the siphon grooves 19 are flush with the lower end of the external rack.

Since the internal space of the filter is limited, the distance between the outer frame 4 and the inner filter screen 9 is relatively small. Therefore, during the sewage discharge operation, due to the small distance, sewage may remain in the gap and be incompletely discharged. By setting the siphon groove 19, the space between the outer frame 4 and the inner filter screen 9 can be sucked, and the sewage between the outer frame 4 and the inner filter screen 9 can be discharged smoothly through the action of the siphon force.

A water channel booster 14 is provided at the front end of the rotating blade 6 at the water inlet of the filter bottle body 3 .

The water channel booster 14 is a small hole water inlet device arranged at the water inlet of the filter bottle body 3. The water pressure at the water inlet increases the water outlet pressure after passing through the water channel booster 14 due to the smaller aperture and faster water flow, which can drive the rotating blades 6 to rotate, so that the outer filter screen 5 is driven to rotate through the rotating blades 6, and the scraper 7 on the outer filter screen 5 is used to brush the inner wall of the filter bottle body 3.

Sealing rings are provided between the side of the motor-driven telescopic rod 2 and the upper side wall of the through hole 13 of the filter bottle body 3 and between the lower end of the switch shaft 10 and the lower side wall of the through hole 13 of the filter bottle body 3 .

By setting up multiple sealing rings, tap water can be prevented from overflowing from the through hole 13 to the outside of the filter, while improving the matching effect between the switch shaft 10 and the through hole 13, and tap water will not overflow when the motor drives the telescopic rod 2 to move up and down.

The cross-sectional diameter of a section from the lower end to the middle of the switch shaft 10 is smaller than the overall cross-sectional diameter of the switch shaft 10 .

By setting the diameter of the small end, a sewage discharge opening is formed between the lower end opening of the through hole 13 and the switch shaft 10 after the switch shaft 10 moves downward, so as to facilitate the discharge of filtered impurities.

The motor assembly 1 further includes a control board 15, a limit switch 16 and a limit switch 2 17. The control board 15 is connected to the control end of the motor assembly 1. The signal ends of the limit switch 1 16 and the limit switch 2 17 are connected to the input end of the control board 15. The limit switch 1 16 and the limit switch 2 17 are installed on the motor assembly 1 in an up-and-down manner at the motor-driven telescopic rod 2. A limit block 18 is provided on the motor-driven telescopic rod 2 between the limit switch 1 16 and the limit switch 2 17. The spacing between the limit card 1 and the limit switch 2 17 is the rod length of the small end cross-section diameter on the switch shaft 10.

By setting the two limit switches, the motor can rotate to drive the telescopic rod to move up and down between the two limit switches, thereby ensuring the opening and closing of the switch shaft 10.

The mesh size of the outer filter screen 5 is larger than the mesh size of the inner filter screen 9 .

Large particles of impurities are filtered through the outer filter 5, and small particles of impurities are filtered through the inner filter 9, so that double-net filtration is achieved and the filtering effect of tap water is improved.

Through the technical solution, in normal use, the sealing cover 11 is pressed against the lower openings of the outer frame 4 and the inner frame 8 by the action of the pressure spring 12, so that the outer filter 5 and the lower part of the inner filter 9 are sealed, and at the same time, the outer frame 4 can be positioned by the limit of the sealing cover 11, so that when the tap water passes through the rotating blade 6, the rotating blade 6 does not rotate, and the tap water is filtered through the outer filter 5 and then discharged from the water outlet of the filter bottle body 3;

After using it for a period of time, it is necessary to remove the impurities accumulated in the filter; by closing the water outlet end of the filter, this closing method can be set at the water outlet end of the filter for manual closing or set a solenoid valve for electric drive automatic closing to achieve outlet closing; then the motor is driven by the control board 15, so that the motor rotation drives the motor drive telescopic rod 2 to move downward, and pushes the switch shaft 10 to move downward, when the switch shaft 10 moves down to the small end side wall of the switch shaft 10, the lower end of the through hole 13 of the filter bottle body 3 is opened, and the impurities of the filter bottle body 3 are discharged from the through hole 13 by the action of water flow, and then the switch shaft 10 continues to move downward and the sealing cover 11 is under the action of the switch shaft 10. Overcoming the spring resistance and moving downward, when the lifting rod contacts the lower limit switch, the sealing cover 11 is completely out of contact with the lower end of the filter. At this time, the pressure of the tap water can drive the rotating blade 6 to rotate, so that the rotating blade 6 drives the outer frame 4 and the outer filter 5 to rotate, so that the scraper 7 brushes the side wall of the filter bottle body 3. At the same time, the vortex formed when the outer filter 5 rotates can also detach the impurities attached to the outer filter 5 and the inner filter 9, so that the impurities are discharged from the lower end of the filter. At the same time, the sewage and impurities between the outer frame 4 and the inner filter 9 are discharged outward from the sewage discharge channel through the siphon force of the siphon groove 19; after completing the sewage discharge, the motor assembly 1 works upward and stops working when it contacts the upper limit switch. At the same time, when working upward to close the sewage discharge channel, the sealing cover 11 moves upward under the action of the spring, so that the sealing cover 11 is sealed with the lower ends of the outer frame 4 and the inner frame 8. At the same time, the sealing cover 11 drives the switch shaft 10 to move upward, so that the lower end of the switch shaft 10 is sealed and closed with the through hole 13; then after the outlet end of the filter is opened, the tap water filtration can continue.

After multiple cycles of periodic sewage discharge in the above process, the filter can be manually disassembled for cleaning or maintenance to completely remove impurities. By reducing the manual disassembly and maintenance cycle, the filter service life can be increased and labor costs can be reduced.

The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. A full-automatic double-net sewage pre-filter is characterized in that: the machine head assembly comprises a filter flask body, the filter screen assembly comprises an outer framework, an outer filter screen, a rotating blade, a scraping blade, an inner framework and an inner filter screen, the sewage disposal assembly comprises a switch shaft, a sealing cover and a pressure spring,

The upper end of the filter flask body is provided with a through hole penetrating to the bottom of the filter flask body, the motor component is arranged at the upper end of the filter flask body, the motor of the motor component drives the telescopic rod to extend into the filter flask body from the upper end of the through hole of the filter flask body,

The inner filter screen is arranged on the inner framework, the upper end of the inner framework is matched with the water outlet at the upper end of the filter flask body, the scraping blade is arranged on the outer side of the outer filter screen, the outer filter screen is arranged on the outer framework, the outer framework is sleeved on the outer side of the inner filter screen, the rotating blades are arranged at the upper end of the framework, the rotating blades are sleeved on the upper end of the inner framework in a rotating way,

The utility model discloses a filter flask, including filter flask body, sealed lid, pressure spring, sealed lid and filter flask body, the through-hole lower extreme department at the filter flask body is installed to the switch axle, and the switch axle upper end stretches into the filter flask body and cooperates with the lower extreme of motor drive telescopic link, the lower extreme of switch axle and the sealed cooperation of through-hole lower extreme lateral wall of filter flask body, sealed lid setting is in the filter flask body to contact with the lower extreme opening of exoskeleton and inner frame and seal, pressure spring installs in the filter flask body and is located between sealed lid and the through-hole department of filter flask body, sealed lid and switch axle fixed connection.

2. A fully automatic twin-wire blowdown pre-filter according to claim 1, characterized in that: a plurality of siphon grooves are vertically formed in the inner wall of the outer framework, and the lower ends of the siphon grooves are flush with the lower ends of the outer hanging frames.

3. A fully automatic twin-wire blowdown pre-filter according to claim 1, characterized in that: the front end of the rotary blade at the water inlet in the filter flask body is provided with a waterway booster.

4. A fully automatic twin-wire blowdown pre-filter according to claim 1, characterized in that: sealing rings are arranged between the side face of the motor driving telescopic rod and the side wall of the upper end of the through hole of the filter flask body and between the lower end of the switch shaft and the side wall of the lower end of the through hole of the filter flask body.

5. A fully automatic twin-wire blowdown pre-filter according to claim 1, characterized in that: the section diameter from the lower end to the middle part of the switch shaft is smaller than the whole section diameter of the switch shaft.

6. A fully automatic twin-wire blowdown pre-filter according to claim 5, characterized in that: the motor assembly further comprises a control board, a first limit switch and a second limit switch, the control board is connected with the control end of the motor assembly, the signal ends of the first limit switch and the second limit switch are connected with the input end of the control board, the first limit switch and the second limit switch are arranged on the motor assembly in an up-down mode and located at the motor driving telescopic rod, and a limiting block is arranged between the first limit switch and the second limit switch on the motor driving telescopic rod.

7. The fully automatic double-net blowdown pre-filter of claim 6, wherein: the distance between the first limit switch and the second limit switch is the length of the rod with the diameter of the section of the small end on the switch shaft.

8. A fully automatic twin-wire blowdown pre-filter according to claim 1, characterized in that: the meshes of the outer filter screen are larger than those of the inner filter screen.