CN219784014U

CN219784014U - Backwashing filter

Info

Publication number: CN219784014U
Application number: CN202321100566.2U
Authority: CN
Inventors: 谢盛东
Original assignee: Ningbo Dingyuan Machinery Manufacturing Co ltd
Current assignee: Ningbo Dingyuan Machinery Manufacturing Co ltd
Priority date: 2023-05-09
Filing date: 2023-05-09
Publication date: 2023-10-03
Anticipated expiration: 2033-05-09

Abstract

The utility model relates to the technical field of filtering equipment and discloses a backwashing filter, which comprises a tank body with a filter screen inside, wherein a cleaning assembly is arranged in the tank body, a driving assembly for driving the cleaning assembly is arranged above the tank body, and a first connecting seat is arranged between the driving assembly and the cleaning assembly. According to the utility model, the cleaning assembly is arranged in the tank body, the first liquid conveying pipe, the second liquid conveying pipe and the high-pressure nozzle in the cleaning assembly are used for flushing the filter screen, impurities can be flushed into the drain pipe during flushing, and the impurities are discharged out of the tank body through the second rotary drum and the liquid outlet.

Description

Backwashing filter

Technical Field

The utility model relates to the technical field of filtering equipment, in particular to a back flushing filter.

Background

The back flush filter is a precise device which directly intercepts impurities in water by utilizing a filter screen, removes suspended matters and particles in the water, reduces turbidity, purifies water quality, reduces the generation of dirt, bacteria and algae, rust and the like of a system so as to purify water quality and protect other equipment of the system, and the fully-automatic back flush filter overcomes the defects of small sewage containing amount, easy blockage by dirt, disassembly and cleaning of a filtering part, incapability of monitoring the state of the filter and the like of a traditional filtering product.

When a traditional back flushing filter is used for back flushing a filter element, the position between two back flushing pieces cannot be back flushed due to the fixed position, a cleaning dead angle exists, the filter element at the dead angle position can be gradually blocked along with the service time, and the filter element finally needs to be disassembled for cleaning, so that time and labor are wasted.

We have therefore proposed a backflushing filter in order to solve the problems set out above.

Disclosure of Invention

(one) solving the technical problems

In view of the above-mentioned shortcomings of the prior art, an object of the present utility model is to provide a backwash filter to solve the above-mentioned problems.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the cleaning device comprises a tank body with a filter screen inside, and is characterized in that a cleaning assembly is arranged in the tank body, a driving assembly for driving the cleaning assembly to rotate up and down is arranged above the tank body, and a first connecting seat is arranged between the driving assembly and the cleaning assembly;

the cleaning assembly comprises a second rotary drum, the bottom end of the second rotary drum penetrates through the filter screen, the side wall of the second rotary drum is communicated with a first liquid feeding pipe and a plurality of drain pipes, one end, far away from the second rotary drum, of the first liquid feeding pipe is communicated with a second liquid feeding pipe, the second liquid feeding pipe is provided with a high-pressure nozzle corresponding to the drain pipes, and the second liquid feeding pipe and the drain pipes are respectively positioned at the inner side and the outer side of the filter screen;

the liquid inlet is formed in the first connecting seat, the liquid inlet communicated with the liquid inlet is formed in the side wall of the first connecting seat, the liquid outlet communicated with the liquid inlet is formed in the side wall of the second rotary drum, the communicating pipe communicated with the liquid outlet and the first liquid feeding pipe is fixed in the second rotary drum, and the liquid outlet communicated with the second rotary drum is formed in the bottom of the tank body.

The utility model is further improved in that the driving assembly comprises a seat cylinder and a rotating shaft rotatably arranged in the seat cylinder, a speed reducing motor is arranged at the top end of the rotating shaft, a sliding block slidably arranged in the seat cylinder is connected to the outer portion of the rotating shaft in a threaded manner, a first rotating cylinder slidably arranged in the seat cylinder and the first connecting seat is rotatably arranged at the bottom of the sliding block, the bottom end of the first rotating cylinder is fixed with the top end of the second rotating cylinder, and the first rotating cylinder is slidably arranged outside the rotating shaft.

The utility model is further improved in that the bottom end of the side wall of the rotating shaft is fixed with a protruding block, the first rotating cylinder is provided with a clamping groove matched with the protruding block, and the protruding block is clamped in the clamping groove.

The utility model is further improved in that a second connecting seat is arranged in the tank body, a liquid outlet cavity is formed in the second connecting seat, the bottom end of the second rotary drum is slidably arranged on the second connecting seat and is communicated with the liquid outlet cavity, and the liquid outlet is communicated with the side wall of the liquid outlet cavity.

The utility model is further improved in that the depth of the liquid outlet cavity is the same as the depth of the liquid inlet cavity.

The utility model is further improved in that the liquid inlet and the liquid outlet are both provided with control valves.

(III) beneficial effects

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

through setting up the cleaning element in the jar body, the first liquid pipe that send in the cleaning element, second liquid pipe and high pressure nozzle wash the filter screen, impurity can be washed into the blow off pipe during the washing, discharge jar body outside through second rotary drum and liquid outlet, owing to be provided with in jar body top with cleaning element complex drive assembly, when cleaning the filter screen in the cleaning element, drive assembly can drive the cleaning element and float from top to bottom, rotate, can carry out the omnidirectional jet cleaning operation to the filter screen, avoid producing the filter screen jam that washs the dead angle and lead to.

Drawings

FIG. 1 is a schematic view of the overall cross-sectional structure of a backflushing filter of the present utility model;

FIG. 2 is an enlarged view of the backwash filter of the present utility model at A;

FIG. 3 is a schematic view of the structure of a rotating shaft of a backwash filter according to the present utility model;

FIG. 4 is a schematic view of the cleaning assembly of the backwash filter of the present utility model;

FIG. 5 is an enlarged view of the backwash filter of the present utility model at B.

In the figure: tank 1, filter screen 2, drive assembly 3, seat section of thick bamboo 31, pivot 32, gear motor 33, slider 34, slewing bearing 35, first section of thick bamboo 36, lug 37, draw-in groove 38, feed liquor chamber 51, feed liquor mouth 52 washs subassembly 4, second rotary drum 41, liquid through-hole 42, first liquid feed pipe 43, communicating pipe 44, second liquid feed pipe 45, high-pressure nozzle 46, blow off pipe 47, liquid outlet 48, second connecting seat 49, first connecting seat 5, feed liquor chamber 51, feed liquor mouth 52.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a backwash filter, which includes a tank 1 with a filter screen 2 therein, a driving component 3, a cleaning component 4 and a first connecting seat 5, wherein the filter screen 2 is fixed on the bottom wall of the tank 1 in a columnar structure, the driving component is arranged above the tank 1, the cleaning component 4 is located inside the tank 1, and the first connecting seat 5 is located between the cleaning component 4 and the driving component 3;

the driving assembly 3 comprises a seat cylinder 31, a rotating shaft 32, a speed reducing motor 33, a sliding block 34 and a first rotating cylinder 36, wherein the seat cylinder 31 is vertically fixed on an external support, the sliding block 34 is installed inside the seat cylinder 31 in a sliding manner, the bottom of the sliding block 34 is rotatably connected with the top end of the first rotating cylinder 36 through a rotating bearing 35 (preferably an end face bearing, the end face bearing can bear larger axial force), the speed reducing motor 33 is fixed on the external support, an output shaft of the speed reducing motor 33 is fixedly connected with the top end of the rotating shaft 32 through a coupler and the like, the bottom end of the rotating shaft 32 sequentially penetrates through the top wall of the seat cylinder 31, the sliding block 34 and is fixedly connected with the first rotating cylinder 36, the rotating shaft 32 is in rotary connection with the top wall of the seat cylinder 31, the rotating shaft 32 is connected with the sliding block 34 through a mode of threaded connection (as shown in fig. 2 and 3), the outer wall of the rotating shaft 32 is provided with external threads, the sliding block 34 is internally provided with internal threads matched with the sliding block 34, the sliding block 34 is driven to move up and down in the seat cylinder 31 through the threaded connection mode, the sliding block 34 is provided with a prismatic block (such as prism and the like), the sliding block 34 can be prevented from rotating along with the rotating in the seat cylinder 31, the rectangular side wall 32, the bottom end of the rotating direction of the rotating block 32, the rotating block 34 is provided with a plurality of clamping grooves 37 and the clamping grooves 37 are symmetrically matched with the rotating grooves 37, namely the rotating grooves 37 and the rotating blocks 38 are matched with the rotating grooves 38, and the rotating grooves 37 are matched with the rotating grooves 38.

The first connecting seat 5 is provided with a liquid inlet cavity 51 inside, and the upper end of the side wall of the first connecting seat is provided with a liquid inlet 52 communicated with the liquid inlet cavity 51.

The cleaning component 4 comprises a second rotary drum 41 (the top end of the second rotary drum 41 penetrates through a liquid inlet cavity 51 and is fixed with the bottom end of the first rotary drum 36, the bottom end of the second rotary drum 41 is an open end), a first liquid feeding pipe 43, a second liquid feeding pipe 45, a high-pressure nozzle 46 and a drain pipe 47, the first liquid feeding pipe 43 and the drain pipe 47 are arranged along the radial direction of the second rotary drum 41 and are provided with a plurality of first liquid feeding pipes 43 and are uniformly distributed around the circumference of the second rotary drum 41, the side wall of the top end of the second rotary drum 41 is provided with a liquid through hole 42, the liquid through hole 42 is communicated with the plurality of first liquid feeding pipes 43 through a communicating pipe 44 arranged inside the second rotary drum 41, one end of the first liquid feeding pipe 43 far away from the second rotary drum 41 is fixedly communicated with one end of the second liquid feeding pipe 45, one side of the second liquid feeding pipe 45 close to the filter screen 2 is provided with a plurality of high-pressure nozzles 46, one end of the plurality of drain pipes 47 far away from the second rotary drum 41 corresponds to the positions of the high-pressure nozzles 46, the bottom end of the second rotary drum 41 sequentially penetrates through the top wall of the tank body 1, the filter screen 2 and is communicated with a liquid outlet cavity of a second connecting seat 49 fixed on the inner bottom wall of the tank body 1 (the liquid outlet cavity is formed in the second connecting seat 49), the side wall of the second connecting seat 49 is provided with a liquid outlet 48 communicated with the liquid outlet cavity, the first liquid feeding pipe 43, the second liquid feeding pipe 45, the high-pressure nozzles 46 and the drain pipes 47 are all located in the tank body 1, and the drain pipes 47 and the high-pressure nozzles 46 are located on the inner side and outer sides of the filter screen 2.

During use, the back flushing water enters the liquid inlet cavity 51 from the liquid inlet 52, then enters the second liquid inlet pipe 45 through the communicating pipe 44 and the first liquid inlet pipe 43, then is sprayed out by the high-pressure nozzle 46, the impurities on the filter screen 2 are chopped and flushed, the flushed impurities are flushed into the drain pipe 47, the impurities are discharged from the liquid outlet cavity 48 through the second rotary drum 41, the speed reducing motor 33 is turned on during flushing (the driving speed, the rotation number and the positive and negative rotation intervals of the speed reducing motor can be set according to the depth of the liquid inlet cavity 51 and the liquid outlet cavity), the speed reducing motor 33 drives the rotating shaft 32 to rotate, the sliding block is driven to slide up or down during rotation of the rotating shaft 3, the first rotary drum 36 rotates along with the rotating shaft 3, and then the cleaning assembly 4 is driven to float up and down to rotate, so that the high-pressure nozzle 46 can spray and flush the filter screen 2 without dead angles, and the filter screen 2 can be effectively prevented from being blocked.

As a preferred technical scheme of the utility model: the depth of the outlet chamber is the same as the depth of the inlet chamber 51.

As a preferred technical scheme of the utility model: control valves (not shown) are provided on both the inlet 52 and the outlet 48, and the control valves may be solenoid valves or pneumatic/manual butterfly valves.

What is not described in detail in this specification is all that is known to those skilled in the art.

The electrical components presented herein may all be electrically connected to an external controller, and the controller may be electrically connected to an external 220V mains supply, and the controller may be a conventionally known device for controlling a computer or the like.

Although the utility model has been described in detail with reference to the foregoing embodiments, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," "secured," and the like are intended to be broadly interpreted as either a fixed connection or a removable connection, for example; or may be indirectly connected through an intervening medium.

In the description of the present utility model, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In this document, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances; it should be understood that those skilled in the art may still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features, and any modification, equivalent substitution, improvement, etc. that are within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The backwashing filter comprises a tank body (1) with a filter screen (2) inside, and is characterized in that a cleaning assembly (4) is arranged in the tank body (1), a driving assembly (3) for driving the cleaning assembly (4) is arranged above the tank body (1), and a first connecting seat (5) is arranged between the driving assembly (3) and the cleaning assembly (4);

the cleaning assembly (4) comprises a second rotary drum (41) with the bottom end penetrating through the filter screen (2), a first liquid feeding pipe (43) and a plurality of drain pipes (47) are communicated with the side wall of the second rotary drum (41), a second liquid feeding pipe (45) is communicated with one end, far away from the second rotary drum (41), of the first liquid feeding pipe (43), a high-pressure nozzle (46) corresponding to the drain pipes (47) is arranged on the second liquid feeding pipe (45), and the second liquid feeding pipe (45) and the drain pipes (47) are respectively positioned on the inner side and the outer side of the filter screen (2);

the novel liquid feeding device is characterized in that a liquid feeding cavity (51) is formed in the first connecting seat (5), a liquid inlet (52) communicated with the liquid feeding cavity (51) is formed in the side wall of the first connecting seat (5), a liquid through hole (42) communicated with the liquid feeding cavity (51) is formed in the side wall of the second rotary drum (41), a communicating pipe (44) communicated with the liquid through hole (42) and the first liquid feeding pipe (43) is fixedly arranged in the second rotary drum (41), and a liquid outlet (48) communicated with the second rotary drum (41) is formed in the bottom of the tank body (1).

2. A backwash filter according to claim 1 wherein the drive assembly (3) comprises a seat barrel (31) and a rotating shaft (32) rotatably mounted inside the seat barrel (31), a gear motor (33) is mounted at the top end of the rotating shaft (32), a sliding block (34) slidably mounted inside the seat barrel (31) is connected to the external screw thread of the rotating shaft (32), a first rotating drum (36) slidably mounted inside the seat barrel (31) and the first connecting seat (5) is rotatably mounted at the bottom of the sliding block (34), the bottom end of the first rotating drum (36) is fixed with the top end of the second rotating drum (41), and the first rotating drum (36) is mounted outside the rotating shaft (32).

3. The backwash filter according to claim 2, wherein a bump (37) is fixed at the bottom end of the side wall of the rotating shaft (32), a clamping groove (38) adapted to the bump (37) is formed in the first rotating drum (36), and the bump (37) is clamped in the clamping groove (38).

4. A backwash filter according to claim 1, wherein a second connecting seat (49) is provided inside the tank body (1), a liquid outlet cavity is provided inside the second connecting seat (49), the bottom end of the second rotary drum (41) is slidably mounted on the second connecting seat (49) and is communicated with the liquid outlet cavity, and the liquid outlet (48) is communicated with the side wall of the liquid outlet cavity.

5. A backwash filter according to claim 4 wherein the depth of the outlet chamber is the same as the depth of the inlet chamber (51).

6. A backwash filter according to claim 1, characterised in that control valves are provided on both the inlet (52) and the outlet (48).