CN211462291U - A piston filter and piston filter system - Google Patents

Abstract

The utility model discloses a piston filter, which comprises a filter pipe, a water outlet pipe, a sewage discharge pipe and a cleaning piston. The cleaning piston comprises a piston cylinder, the piston cylinder is movably accommodated in the filter pipe, and the filter pipe is provided with a filter hole and a sewage outlet, and an outlet The water pipe is sleeved at the filter hole of the filter pipe, and the piston cylinder blocks the sewage outlet, so that the sewage is filtered through the filter hole and discharged from the water outlet. The sewage pipe is connected with the sewage outlet. When the filter hole needs to be cleaned, the piston cylinder moves to scrape the filter The inner wall of the hole exposes the sewage outlet, and the sewage outlet discharges the sewage. The piston filter of the utility model adopts the filtering type separation of water and dirt, which can quickly and efficiently filter and separate the impurities and dirt in the water, and can also be used in pre- and post-filtering, and has a simple structure and takes up space. Small, easy to use and reliable. The utility model also relates to two piston-type filter systems comprising the above-mentioned piston-type filter.

Description

A piston filter and piston filter system

technical field

The utility model relates to a filter, in particular to a piston filter.

Background technique

In sewage treatment, the sundries, oil, etc. in the sewage are generally separated first, and the sewage is discharged separately. However, many sewage filter separators on the market generally have problems such as complex structure, high cost and large volume, etc. .

Utility model content

In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a piston filter with a simple structure, high separation efficiency of water, dirt and sundries and a small volume.

The purpose of this utility model adopts following technical scheme to realize:

A piston filter includes a filter pipe, a water outlet pipe, a sewage pipe and a cleaning piston, the cleaning piston includes a piston cylinder, the piston cylinder is movably accommodated in the filter pipe, and the filter pipe is provided with filter holes and sewage discharge. The water outlet pipe is sleeved at the filter hole of the filter pipe, and the piston cylinder blocks the sewage outlet, so that the sewage is filtered through the filter hole and discharged from the water outlet pipe. The sewage outlet is connected, and when the filter hole needs to be cleaned, the piston cylinder moves and scrapes the inner wall of the filter hole and exposes the sewage outlet, and the sewage outlet discharges the sewage.

Further, the cleaning piston further includes a base, the piston cylinder is fixedly mounted on the base, and the piston cylinder and the base are hollow structures.

Further, the top of the piston cylinder is provided with a conical inward chamfer.

Further, the cleaning piston further comprises a piston push rod, the piston push rod is fixed on the base, a push rod hole is provided at the bottom of the filter tube, and the piston push rod extends out of the push rod hole through the push rod hole. filter tube.

Further, the filter tube further includes a push rod sealing ring, and the push rod sealing ring is located in the push rod hole to seal the push rod hole and the piston push rod.

Further, the cleaning piston further includes a return spring and a baffle plate, the baffle plate is fixed to the piston push rod, one end of the return spring is fixed to the baffle plate, and the other end is fixed to the filter tube.

Further, the cleaning piston further includes a piston sealing ring, and the piston sealing ring is sleeved on the piston cylinder and located between the piston cylinder and the inner wall of the filter tube.

Further, the opening direction of the mouth of the water outlet pipe is perpendicular to the axial direction of the filter pipe.

A piston filter system includes a pool, a water pump, a driver and a pulverizer, the piston filter system also includes a piston filter, the water inlet of the piston filter is connected to the pool, and the water outlet is connected to the The water pump is connected, the sewage pipe is connected with the pulverizer, the driver drives the cleaning piston of the piston filter to move, the sewage enters the piston filter from the pool for filtration treatment, and the clean water passes through the water outlet from the water outlet. The water pump returns to the pool, and the residue cleaned by the cleaning piston is pulverized by the pulverizer and discharged.

A piston filter system includes a check valve, a driver and a pulverizer, the piston filter system further includes a piston filter, the water inlet of the piston filter is connected with a water source, and the water outlet is connected with a water pipe, The sewage pipe is connected to the check valve and then connected to the pulverizer. The driver drives the cleaning piston of the piston filter to move, and the water enters the piston filter from the water source for filtration treatment. The water outlet enters the used water pipe, and the residue cleaned by the cleaning piston is crushed by the pulverizer and discharged after passing through the check valve.

Compared with the prior art, the piston filter of the utility model adopts the filtering type separation of water, dirt and sundries, which can quickly and efficiently separate water, dirt and sundries, and can also be used in pre-filtering and post-filtering, and its structure is simple. , takes up less space, and is convenient and reliable to use.

1. In this piston filter structure, a cleaning piston is set in the filter tube, and the filter is filtered through the filter hole of the filter tube. When cleaning the dirt, the piston is pushed to clean the inner wall of the filter hole, and the filtration and cleaning are realized through a simple pipe and piston structure. ;

2. The use of different filter plates (filters) with different filter hole sizes can be used for water and dirt separators, or pre/post filters, with a wide range of applications;

3. The piston filter structure has a cleaning piston in the filter tube, so the filter tube can be the same size as the ordinary water tube, and the water outlet tube only needs to be slightly larger than the filter tube, occupying less space and improving the user's space utilization.

Description of drawings

Fig. 1 is the perspective view of the utility model piston filter;

Fig. 2 is an exploded view of the piston filter of Fig. 1;

3 is a perspective view of a filter tube of the piston filter of FIG. 2;

4 is a cross-sectional view of the filter tube of FIG. 3;

5 is a perspective view of a cleaning piston of the piston filter of FIG. 2;

Fig. 6 is the perspective view of the water outlet pipe of the piston filter of Fig. 2;

Fig. 7 is a perspective cross-sectional view of the piston filter of Fig. 1;

8 is a cross-sectional view of the piston filter of FIG. 1;

9 is a schematic diagram of a use state of the piston filter of FIG. 1;

Fig. 10 is another use state schematic diagram of the piston filter of Fig. 1;

Fig. 11 is another schematic diagram of the use state of the piston filter of Fig. 1;

12 is a schematic structural diagram of a piston filter system of the present invention;

FIG. 13 is a schematic structural diagram of another piston filter system of the present invention.

In the figure: 100, piston filter; 10, filter tube; 11, water inlet; 12, filter hole; 13, sewage outlet; 14, push rod hole; 15, push rod sealing ring; 20, cleaning piston; 21, Piston cylinder; 22, base; 23, piston push rod; 24, piston sealing ring; 25, return spring; 26, baffle; 30, water outlet pipe; 31, filter nozzle; 32, water outlet; 40, sewage pipe; 50, pool; 60, water pump; 70, driver; 80, grinder; 90, check valve.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be another intermediate component through which it is fixed. When a component is said to be "connected" to another component, it can be directly connected to the other component or there may be another intermediate component present at the same time. When a component is said to be "disposed on" another component, it may be directly disposed on the other component or there may be another intermediate component present at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to FIGS. 1 to 11 , a piston filter 100 of the present invention includes a filter pipe 10 , a cleaning piston 20 , a water outlet pipe 30 and a sewage pipe 40 .

The filter tube 10 is a tubular structure with an open top, and the filter tube 10 is provided with at least one water inlet 11 and a sewage outlet 13. A plurality of filter holes 12 are opened on the side wall of the filter tube 10 . The filter hole 12 is used to filter oily residue and the like. The bottom of the filter tube 10 is provided with a push rod hole 14. The push rod hole 14 has a built-in push rod sealing ring 15. The push rod sealing ring 15 is used to prevent the water in the filter tube 10 from flowing out from the gap between the piston push rod 23 and the push rod hole 14. Ensure the tightness of the filter tube 10 during operation.

The cleaning piston 20 includes a piston cylinder 21 , a base 22 , a piston push rod 23 , a piston sealing ring 24 , a return spring 25 and a baffle 26 . The piston cylinder 21 is fixed on the base 22 and the piston cylinder 21 and the base 22 are hollow structures. During cleaning, the water can flow from the upper side of the piston cylinder 21 to the side where the piston push rod 23 is located, and then be discharged from the sewage pipe 40 . The top of the piston cylinder 21 is provided with a conical inward chamfer, which is convenient for scraping the filter hole 12 for cleaning. The piston cylinder 21 of the cleaning piston 20 has high wear resistance, so that the piston cylinder 21 can rub against the filter tube 10 during repeated cleaning and has low wear and high hardness, ensuring that the top of the piston cylinder 21 is cleaned during cleaning. The oil residue and the like can be scraped off from the filter hole 12 smoothly. The piston push rod 23 is fixed on the base 22, and the piston sealing ring 24 is installed on the piston cylinder 21 to ensure the tightness in the filter tube 10. The baffle 26 is fixed to the piston push rod 23 , one end of the return spring 25 is fixed to the baffle 26 , and the other end collides with the filter tube 10 . The outer side of the piston cylinder 21 and the inner wall of the filter tube 10 should be smooth, with a low friction coefficient, to ensure that the cleaning piston 20 can move up and down in the filter tube 10 .

The water outlet pipe 30 is provided with two filter nozzles 31 and a water outlet 32 .

When assembling the piston filter 100, the two filter nozzles 31 of the water outlet pipe 30 are connected to the outside of the filter pipe 10, surround the outside of the filter hole 12, and are sealed with the outside of the filter pipe 10, and the water outlet 32 is used to output filtered clean water . The sewage pipe 40 is connected to the sewage outlet 13 . The piston cylinder 21 and the base 22 of the cleaning piston 20 are accommodated in the filter tube 10 , and the piston push rod 23 protrudes from the push rod hole 14 .

When using the piston filter 100, the sewage to be filtered enters from the water inlet 11 of the filter pipe 10, the oil, residue and sediment are isolated by the filter holes 12 on the filter pipe 10, and the filtered clean water enters the water outlet pipe 30, It is discharged from the water outlet 32. After a certain period of time, a large amount of oil residues and the like block the filter hole 12, push the piston push rod 23 to move the piston cylinder 21 to scrape the inner wall of the filter hole 12, clean the impurities blocked on the filter hole 12, and dredge the filter hole 12, while the piston The cylinder 21 moves to expose the blocked sewage outlet 13 to discharge oil residues, etc. After cleaning, the piston cylinder 21 is reset under the action of the return spring 25 .

Please continue to refer to FIG. 12 and FIG. 13 , the piston filter 100 of the present invention can also be used in a filter system to form a piston filter system. If it is used in sewage treatment, the sewage enters the piston filter 100 from the pool 50 through the water inlet 11 for filtration treatment, the treated purified water is discharged from the water outlet 30, and is pumped back to the pool 50 through the water pump 60 to form a system circulation , The oil residue is controlled by the driver 70 (manual handle or rotary rod to control the motor) to control the piston push rod 23 to move up and down to drive the piston cylinder 21 to clean up, and is discharged from the sewage pipe 40 to the pulverizer 80, and then discharged after being pulverized.

If it is used in water source filtration, the water enters the piston filter 100 from the water source (tap water pipe, etc.) through the water inlet 11 for filtration treatment. The piston push rod 23 is controlled to move up and down by the driver 70 (manual handle or rotary rod control motor) to drive the piston cylinder 21 to clean up.

The piston filter 100 of the utility model adopts filtering oil-water separation, which can quickly and efficiently separate oil and water, and can also be used in pre- and post-filtering, and has a simple structure, small occupied space, and convenient and reliable use.

1. In the structure of the piston filter 100, a cleaning piston 20 is arranged in the filter tube 10, and the filter is filtered through the filter hole 12 of the filter tube 10. When cleaning the dirt, the piston cylinder 21 is pushed to clean the inner wall of the filter hole 12, and the inner wall of the filter hole 12 is cleaned by a simple pipeline and Piston structure to achieve filtration and cleaning;

2. Different filter plates (filters) with 12 filter holes are used, which can be used in oil-water separators, or pre/post filters, with a wide range of applications;

3. In this piston filter structure 100, since the cleaning piston 20 is arranged in the filter tube 10, the filter tube 10 can be the same size as the ordinary water tube, and the water outlet tube 30 only needs to be slightly larger than the filter tube 10, and takes up less space , which can improve the space utilization rate of users.

For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all these changes and deformations should fall within the protection scope of the claims of the present invention.

Claims (10)

1. The utility model provides a piston filter, includes filter tube, outlet pipe and blow off pipe, its characterized in that: the piston type filter further comprises a cleaning piston, the cleaning piston comprises a piston cylinder, the piston cylinder is movably contained in the filter pipe, the filter pipe is provided with a filter hole and a drain outlet, the water outlet pipe is sleeved at the filter hole of the filter pipe, the piston cylinder is blocked up the drain outlet, sewage is discharged from the filter hole after being filtered, the drain pipe is communicated with the drain outlet, when the filter hole needs to be cleaned, the piston cylinder moves and scrapes the inner wall of the filter hole and exposes the drain outlet, and the drain outlet discharges sewage.

2. The piston filter as set forth in claim 1 wherein: the cleaning piston further comprises a base, the piston cylinder is fixedly mounted on the base, and the piston cylinder and the base are of hollow structures.

3. The piston filter as set forth in claim 2 wherein: the top of the piston cylinder is provided with a conical inward chamfer.

4. The piston filter as set forth in claim 2 wherein: the cleaning piston further comprises a piston push rod, the piston push rod is fixed to the base, a push rod hole is formed in the bottom of the filter pipe, and the piston push rod penetrates through the push rod hole to extend out of the filter pipe.

5. The piston filter as set forth in claim 4 wherein: the filter tube further comprises a push rod sealing ring, and the push rod sealing ring is located in the push rod hole to enable the push rod hole to be sealed with the piston push rod.

6. The piston filter as set forth in claim 4 wherein: the cleaning piston further comprises a return spring and a baffle, the baffle is fixed to the piston push rod, one end of the return spring is fixed to the baffle, and the other end of the return spring is fixed to the filter pipe.

7. The piston filter as set forth in claim 1 wherein: the cleaning piston further comprises a piston sealing ring, and the piston sealing ring is sleeved on the piston cylinder and is positioned between the piston cylinder and the inner wall of the filter pipe.

8. The piston filter as set forth in claim 1 wherein: the opening direction of the water outlet pipe orifice is vertical to the axial direction of the filter pipe.

9. The utility model provides a piston filtration system, includes pond, water pump, driver and grinder which characterized in that: the piston type filtering system further comprises a piston type filter as claimed in any one of claims 1 to 8, wherein a water inlet of the piston type filter is connected with the water tank, a water outlet of the piston type filter is connected with the water pump, a drain pipe is connected with the crusher, the driver drives a cleaning piston of the piston type filter to move, sewage enters the piston type filter from the water tank for filtering treatment, clean water returns to the water tank through the water pump from the water outlet, and residues cleaned by the cleaning piston are crushed by the crusher and then discharged.

10. The utility model provides a piston filtration system, includes check valve, driver and grinder, its characterized in that: the piston type filtering system further comprises a piston type filter as claimed in any one of claims 1 to 8, wherein a water inlet of the piston type filter is connected with a water source, a water outlet of the piston type filter is connected with a water using pipe, a drain pipe is connected with a check valve and then connected with the crusher, the driver drives a cleaning piston of the piston type filter to move, water enters the piston type filter from the water source to be filtered, purified water enters the water using pipe from the water outlet, and the cleaned residues of the cleaning piston are crushed by the crusher and then discharged after passing through the check valve.

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