CN211384034U

CN211384034U - Novel prefilter with backwashing function

Info

Publication number: CN211384034U
Application number: CN201922334259.0U
Authority: CN
Inventors: 廖建林; 曾鑫
Original assignee: Longyan Menglong Tungsten Steel Cutter Co ltd
Current assignee: Longyan Menglong Tungsten Steel Cutter Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-09-01
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a novel prefilter with a back washing function, which relates to the technical field of filters and comprises a liquid through pipe and a blocking ball valve arranged in the liquid through pipe, wherein the bottom end of the liquid through pipe is provided with a liquid through port, the bottom end of the liquid through port is fixedly provided with a communicating pipe, the front side in the blocking ball valve is provided with a first liquid through pipe cavity, the right side in the blocking ball valve is provided with a second liquid through pipe cavity, the bottom side in the blocking ball valve is provided with a third liquid through pipe cavity, the left side surface of the blocking ball valve is provided with a drainage wedge surface, the blocking ball valve, the first liquid through pipe cavity, the second liquid through pipe cavity, the third liquid through pipe cavity, the drainage wedge surface, a connecting rod, a rotating handle, a through end head, a liquid outlet pipe and a sealing plug are arranged, so that the prefilter has the back washing function, and the cleaning and maintenance of a filter screen in the filter are more convenient, the working efficiency of the filter screen maintenance and cleaning treatment is improved.

Description

Novel prefilter with backwashing function

Technical Field

The utility model relates to the technical field of filters, specifically a novel leading filter from taking back flush function.

Background

The pre-filter is the first coarse filter for the whole water, and can filter the large particles such as silt and rust in the tap water. The pre-filter is generally arranged at the front end of the pipeline, so the pre-filter is named by a front-in character; by "filtration" is meant the basic principle of such devices, with the accuracy of the filter screen varying from 5 to 300 microns depending on the brand and model. Mainly removes the precipitated impurities generated by the pipeline and the particle impurities of more than 5 microns such as bacteria, microorganism remains, iron rust, sand mud and the like, and avoids the human body and the skin from being injured; and play positive guard action to low reaches pipeline, water purifier, water heater, washing machine, high-grade tap, gondola water faucet, leading filter use in-process need regularly carry out the cleaning maintenance to the filter screen and handle.

However, when the filter screen of the traditional pre-filter is cleaned, maintained and processed, the filter screen needs to be detached and taken out from the filter, so that the operation mode of regular cleaning, maintenance and processing of the filter screen is complicated, inconvenience is brought to workers, and the working efficiency of maintaining, cleaning and processing the filter screen is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a from novel prefilter of taking back flush function to when solving the filter screen that proposes traditional prefilter among the above-mentioned background art and carrying out the clean maintenance processing, need take out the filter screen dismantlement on the filter, lead to the filter screen regularly to wash the maintenance processing operation mode loaded down with trivial details complicacy, bring inconvenience for the staff, reduced the problem of the work efficiency who maintains the clean processing to the filter screen.

In order to achieve the above object, the utility model provides a following technical scheme:

a novel prefilter with a back-flushing function, which comprises a liquid-passing pipe and a blocking ball valve arranged in the liquid-passing pipe, the left end of the liquid pipe is fixedly provided with a liquid inlet port, the right end of the liquid pipe is fixedly provided with a liquid outlet port, the bottom end of the liquid through pipe is provided with a liquid through port, the bottom end of the liquid through port is fixedly provided with a communicating pipe, a first liquid through pipe cavity is arranged at the front side inside the blocking ball valve, a second liquid through pipe cavity is arranged at the right side inside the blocking ball valve, a third liquid through pipe cavity is arranged at the bottom side in the plugging ball valve, a drainage wedge surface is arranged on the left side surface of the plugging ball valve, the upper end of the plugging ball valve is fixedly provided with a connecting rod, the inner side of the liquid through opening is fixedly provided with a filter screen, the bottom of communicating pipe is provided with the sealed tube, the bottom mounting of sealed tube is provided with the intercommunication end.

As a further aspect of the present invention: the assembly screw groove is formed in the position of the inner side surface of the communicating pipe, assembly threads are formed in the position of the outer side surface of the upper end of the sealing pipe, and the sealing pipe is in threaded connection with the communicating pipe.

As a further aspect of the present invention: the first liquid through pipe cavity, the second liquid through pipe cavity and the third liquid through pipe cavity are communicated with each other.

As a further aspect of the present invention: the drainage inclined wedge surface is communicated with the liquid inlet port, the second liquid through pipe cavity is communicated with the liquid outlet port, and the third liquid through pipe cavity is communicated with the communicating pipe.

As a further aspect of the present invention: the connecting rod runs through in liquid pipe, the upper end position department of connecting rod is fixed and is provided with rotatory handle.

As a further aspect of the present invention: and a liquid outlet pipe is fixedly arranged at the position of the side face of the bottom end of the communicating end, and one end of the liquid outlet pipe is in threaded connection with a sealing plug.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses set up shutoff ball valve, first logical liquid lumen, second logical liquid lumen, third logical liquid lumen, drainage tapered face, connecting rod, rotatory handle, logical end, drain pipe and sealed end cap for leading to the filter is from taking back flush function, need not dismantle the filter screen and take out and can carry out the cleaning to it, and the filter screen in the filter carries out the regular cleaning maintenance and handles more convenient simple, improves the work efficiency who maintains the cleaning to the filter screen.

Drawings

FIG. 1 is a schematic view of a novel pre-filter with a back-flushing function;

FIG. 2 is a schematic front view of a novel prefilter with a backwashing function;

FIG. 3 is a schematic structural diagram of a plugging ball valve in a novel prefilter with a backwashing function;

fig. 4 is a schematic structural diagram of the assembled novel prefilter with a backwashing function.

In the figure: 1. a liquid pipe is communicated; 101. a liquid inlet port; 102. a liquid outlet port; 2. a liquid through port; 3. a communicating pipe; 301. assembling a screw groove; 4. a filter screen; 5. a sealing tube; 501. assembling threads; 6. connecting the end heads; 7. a liquid outlet pipe; 8. sealing the plug; 9. plugging the ball valve; 901. a first fluid lumen; 902. a second fluid lumen; 903. a third fluid lumen; 904. draining the inclined wedge surface; 10. a connecting rod; 11. the handle is rotated.

Detailed Description

Referring to fig. 1-4, in the embodiment of the present invention, a novel prefilter with a back-washing function comprises a liquid flowing pipe 1 and a blocking ball valve 9 disposed inside the liquid flowing pipe 1, the left end of the liquid flowing pipe 1 is fixedly disposed with a liquid inlet port 101, the right end of the liquid flowing pipe 1 is fixedly disposed with a liquid outlet port 102, the bottom end of the liquid flowing pipe 1 is disposed with a liquid flowing port 2, the bottom end of the liquid flowing port 2 is fixedly disposed with a communicating pipe 3, the front side of the inside of the blocking ball valve 9 is disposed with a first liquid flowing pipe cavity 901, the right side of the inside of the blocking ball valve 9 is disposed with a second liquid flowing pipe cavity 902, the bottom side of the inside of the blocking ball valve 9 is disposed with a third liquid flowing pipe cavity 903, the left side surface of the blocking ball valve 9 is disposed with a drainage wedge 904, the upper end of the blocking ball valve 9 is fixedly disposed with a connecting rod, the bottom end of the sealing tube 5 is fixedly provided with a communicating end head 6.

In fig. 2: assembly thread groove 301 is formed in the position of the inner side surface of communication pipe 3, assembly thread 501 is formed in the position of the outer side surface of the upper end of sealing pipe 5, sealing pipe 5 is in threaded connection with communication pipe 3, and the purpose of facilitating mounting and dismounting of sealing pipe 5 on communication pipe 3 is achieved.

In fig. 2 and 3: first logical liquid lumen 901, second logical liquid lumen 902 and third logical liquid lumen 903 all communicate each other, drainage wedge face 904 is linked together with inlet port 101 to one side, second logical liquid lumen 902 is linked together with outlet port 102, third logical liquid lumen 903 is linked together with communicating pipe 3, in water liquid from inlet port 101 dredges face 904 drainage to sealed tube 5 through drainage wedge to one side, sealed tube 5's water liquid loops through third logical liquid lumen 903 and second logical liquid lumen 902 after filter treatment through filter screen 4, finally flow through outlet port 102, thereby reached and to have carried out filter treatment's purpose to water liquid.

In fig. 1 and 3: the connecting rod 10 runs through in leading to liquid pipe 1, and the upper end position department of connecting rod 10 is fixed to be provided with rotatory handle 11, has reached the purpose of being convenient for rotate and has adjusted shutoff ball valve 9.

In fig. 1: the liquid outlet pipe 7 is fixedly arranged at the position of the side face of the bottom end of the communicating end head 6, one end of the liquid outlet pipe 7 is in threaded connection with the sealing plug 8, and the purpose of facilitating mounting and dismounting of the sealing plug 8 is achieved.

The utility model discloses a theory of operation is: when the filter screen 4 needs to be subjected to back flush cleaning treatment in the process of using the pre-filter, the initial state of the pre-filter is that the drainage inclined wedge surface 904 is communicated with the liquid inlet port 101, the second liquid through cavity 902 is communicated with the liquid outlet port 102, the third liquid through cavity 903 is communicated with the communicating pipe 3, the blocking ball valve 9 is rotated 90 degrees along the anticlockwise direction by using the rotary handle 11, at this time, the first liquid through cavity 901 is communicated with the liquid inlet port 101, the third liquid through cavity 903 is communicated with the communicating pipe 3, the liquid outlet port 102 is blocked by the blocking ball valve 9, the liquid flowing out of the liquid inlet port 101 sequentially passes through the first liquid through cavity 901 and the third liquid through cavity 903, the liquid flowing out of the third liquid through cavity 903 can carry out back washing treatment on the filter screen 4, and (3) disassembling the sealing plug 8 on the liquid outlet pipe 7, and finally allowing the backflushed water liquid to flow out through the liquid outlet pipe 7.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A novel prefilter with a back-washing function comprises a liquid passing pipe (1) and a blocking ball valve (9) arranged inside the liquid passing pipe (1), and is characterized in that a liquid inlet port (101) is fixedly arranged at the left end of the liquid passing pipe (1), a liquid outlet port (102) is fixedly arranged at the right end of the liquid passing pipe (1), a liquid passing port (2) is formed in the bottom end of the liquid passing pipe (1), a communicating pipe (3) is fixedly arranged at the bottom end of the liquid passing port (2), a first liquid passing pipe cavity (901) is formed in the front inside of the blocking ball valve (9), a second liquid passing pipe cavity (902) is formed in the right inside of the blocking ball valve (9), a third liquid passing pipe cavity (903) is formed in the bottom side inside of the blocking ball valve (9), a drainage inclined wedge surface (904) is formed in the left side surface of the blocking ball valve (9), and a connecting rod (10) is fixedly arranged at the upper end of the blocking ball, the filter screen (4) is fixedly arranged on the inner side of the liquid through port (2), the sealing pipe (5) is arranged at the bottom end of the communicating pipe (3), and the communicating end (6) is fixedly arranged at the bottom end of the sealing pipe (5).

2. The novel prefilter with a self-contained backwashing function as claimed in claim 1, wherein an assembly screw groove (301) is formed in the position of the inner side surface of the communicating pipe (3), an assembly screw thread (501) is formed in the position of the outer side surface of the upper end of the sealing pipe (5), and the sealing pipe (5) is in threaded connection with the communicating pipe (3).

3. The novel prefilter with a self-contained backwashing function as claimed in claim 1, wherein the first liquid passing lumen (901), the second liquid passing lumen (902) and the third liquid passing lumen (903) are all communicated with each other.

4. The novel prefilter with a self-contained backwashing function as claimed in claim 1, wherein the drainage inclined wedge surface (904) is communicated with the liquid inlet port (101), the second liquid through cavity (902) is communicated with the liquid outlet port (102), and the third liquid through cavity (903) is communicated with the communicating pipe (3).

5. The novel prefilter with a self-contained backwashing function as claimed in claim 1, wherein the connecting rod (10) penetrates through the liquid passing pipe (1), and a rotary handle (11) is fixedly arranged at the upper end position of the connecting rod (10).

6. The novel prefilter with a self-backwashing function as claimed in claim 1, wherein a liquid outlet pipe (7) is fixedly arranged at a bottom end side position of the communicating end head (6), and a sealing plug (8) is connected to one end of the liquid outlet pipe (7) in a threaded manner.