Backwash filter

Abstract

The utility model relates to the technical field of filtering devices, and discloses a backwashing filter which comprises a shell, the upper side of the shell is fixedly connected with a fixing frame, the upper side of the fixing frame is fixedly connected with a motor, the output end of the motor is fixedly connected with a rotating disc, the lower side of the rotating disc is fixedly connected with a connecting ring, and the connecting ring is fixedly connected with the rotating disc. A filter cartridge is arranged in the shell, the filter cartridge is rotatably connected to the interior of the shell through a bearing, the lower side of a connecting ring is fixedly connected to the filter cartridge, the left side of the shell is fixedly communicated with a water inlet pipe, the lower side of the shell is provided with a drainage pipe, and the left side of the shell is fixedly communicated with a blow-off pipe; and a water spraying seat is arranged in the shell. According to the utility model, aiming at different impurity accumulation degrees, the distance between the spray head and the filter cartridge can be adjusted through the electric push rod, and the backwashing force is accurately controlled, so that water resources and energy are saved, the cleaning effect on impurities under different conditions can be ensured, and the adaptability of equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter device technical field especially relates to a backwash filter. BACKGROUND

[0002] The backwash filter is a kind of precision equipment for purifying medium and protecting the normal work of other equipment of system, which removes suspended solids, particulate matter in medium, reduces turbidity, purifies water quality, reduces system dirt, bacteria, corrosion and the like to generate.

[0003] The backwash filter is mainly composed of filter main body, backwash device and support structure, the filter main body contains shell and filter screen, the water to be filtered enters the shell through water inlet pipe, passes through filter screen, the backwash device has water pipe, spray head and valve, when backwashing, water flows through backwash water pipe, spray head and impacts filter screen, and removes impurities, and is discharged from blow-off pipe, and support structure guarantees the stable operation of each component.

[0004] But the water of existing filter directly passes through filter screen, impurities are easy to accumulate on one side of filter screen, which causes local filter screen to be seriously blocked, affects filtering efficiency, and it is difficult to realize the comprehensive interception of different particle size impurities, and water purification effect is poor, and backwash mode is single, when impurities are accumulated more, simple reverse water flow is difficult to completely remove impurities, filter screen is not completely cleaned, which causes subsequent filtering performance to continuously decrease.

[0005] Therefore, a backwash filter is provided to solve the problems in the background. CONTENT OF UTILITY MODEL

[0006] In order to make up for the above shortcomings, the utility model provides a backwash filter, which aims at improving the problems in the prior art that the water of filter directly passes through filter screen, causes local filter screen to be seriously blocked, when impurities are accumulated more, simple reverse water flow is difficult to completely remove impurities, filter screen is not completely cleaned, which causes subsequent filtering performance to continuously decrease.

[0007] To achieve the above object, the utility model provides the following technical scheme: a backwash filter, including the shell, the upper side of the shell is fixedly connected with the fixed frame, the upper side of the fixed frame is fixedly connected with the motor, the output end of the motor is fixedly connected with the rotating disc, the lower side of the rotating disc is fixedly connected with the connecting ring, the inside of the shell is provided with the filter cartridge, the filter cartridge is rotatably connected in the inside of the shell through the bearing, the lower side of the connecting ring is fixedly connected on the filter cartridge, the left side of the shell is fixedly connected with water inlet pipe, the lower side of the shell is provided with the drain pipe, the left side of the shell is fixedly connected with blow-off pipe, the inside of the shell is provided with the water spraying seat, the water spraying seat is installed with the cleaning spray head, the upper side of the water spraying seat is fixedly connected with backwash pipe, the backwash pipe is provided with the adjusting assembly, the front side of the shell is installed with the transparent window.

[0008] Further, the adjusting assembly comprises a fixing block fixedly installed on the outside of the backwashing pipe, the right side of the shell is fixedly installed with an electric push rod, the telescopic end of the electric push rod is fixedly connected with the fixing block, the inner wall of the shell is fixedly connected with a fixing cylinder, the inside of the fixing cylinder is provided with a telescopic rod, and the right side of the water spraying seat is fixedly connected with the telescopic rod.

[0009] Further, the inside of the shell is provided with a rotating groove, and the connecting ring is rotatably connected in the rotating groove.

[0010] Further, the telescopic rod is slidably connected in the inside of the fixing cylinder.

[0011] Further, the inside of the shell is provided with a slot, and the backwashing pipe is slidably connected in the inside of the slot.

[0012] Further, the blow-off pipe is arranged on the lower side of the water inlet pipe.

[0013] Further, the water spraying seat is slidably connected on the right side of the filter cylinder.

[0014] Further, the filter cylinder is rotatably connected in the inside of the shell.

[0015] The utility model has the advantages of the following beneficial effects:

[0016] 1. In the utility model, the filter cylinder structure and the water flow path design can effectively intercept impurities, ensure the water quality after filtration, improve the filtration efficiency, meet the demand of different scenes for water quality, the motor drives the filter cylinder to rotate, combines the water spraying of the backwashing nozzle, multi-angle flushes the filter screen, makes the impurity cleaning more thorough, restores the good filtration performance of the filter screen, and prolongs the service life of the filter screen.

[0017] 2. In the utility model, the distance between the nozzle and the filter cylinder can be adjusted through the electric push rod according to the different impurity accumulation degrees, the backwashing strength is accurately controlled, water resources and energy are saved, the cleaning effect of impurities in different situations is ensured, and the equipment adaptability is improved. DRAWINGS

[0018] Figure 1 A perspective view of the backwashing filter is provided for the utility model;

[0019] Figure 2 An internal structure schematic view of the backwashing filter is provided for the utility model;

[0020] Figure 3 An adjusting assembly structure schematic view of the backwashing filter is provided for the utility model.

[0021] LEGEND:

[0022] 1, shell; 2, fixed frame; 3, motor; 4, turntable; 5, connecting ring; 6, rotating groove; 7, filter cartridge; 8, water inlet pipe; 9, drain pipe; 10, backwashing pipe; 11, cleaning nozzle; 12, adjusting assembly; 121, fixed cylinder; 122, telescopic rod; 123, fixed block; 124, electric push rod; 125, slot; 13, water spray seat; 14, transparent window; 15, drain pipe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Referring to Figure 1 and Figure 2 , the present application provides an embodiment: a backwashing filter, comprising a shell 1, the upper side of the shell 1 is fixedly connected with a fixed frame 2, the upper side of the fixed frame 2 is fixedly connected with a motor 3, the output end of the motor 3 is fixedly connected with a turntable 4, the lower side of the turntable 4 is fixedly connected with a connecting ring 5, the inside of the shell 1 is provided with a rotating groove 6, the connecting ring 5 is rotatably connected in the inside of the rotating groove 6, the inside of the shell 1 is provided with a filter cartridge 7, the filter cartridge 7 is rotatably connected in the inside of the shell 1 through a bearing, the lower side of the connecting ring 5 is fixedly connected on the filter cartridge 7, the filter cartridge 7 is rotatably connected in the inside of the shell 1, the left side of the shell 1 is fixedly communicated with a water inlet pipe 8, the lower side of the shell 1 is provided with a drain pipe 15, the left side of the shell 1 is fixedly communicated with a drain pipe 9, the drain pipe 9 is arranged on the lower side of the water inlet pipe 8, the inside of the shell 1 is provided with a water spray seat 13, the water spray seat 13 is installed with a cleaning nozzle 11, the upper side of the water spray seat 13 is fixedly communicated with a backwashing pipe 10, the backwashing pipe 10 is provided with an adjusting assembly 12, the front side of the shell 1 is installed with a transparent window 14;

[0025] Specifically, by opening the valve of the water inlet pipe 8, the external water to be filtered flows into the inside of the shell 1 along the water inlet pipe 8, passes through the filter cartridge 7, and the impurities in the water are intercepted outside the filter cartridge 7, while the filtered clean water flows down from the inside of the filter cartridge 7, and is discharged through the drain pipe 15 to the device, thus completing the normal filtering process. When the device needs to be backwashed, the motor 3 is started, the motor 3 drives the rotating disc 4 to rotate, and the rotating disc 4 drives the connecting ring 5 to rotate in the rotating groove 6, and the rotation of the connecting ring 5 drives the filter cartridge 7 to rotate stably in the shell 1. At the same time, the valve on the backwashing pipe 10 is opened, water is injected into the backwashing pipe 10, and the water flows into the water spraying seat 13 through the backwashing pipe 10 and is finally sprayed out from the cleaning spray head 11. At this time, the filter cartridge 7 continues to rotate, and the sprayed water flow cooperates with the rotation of the filter cartridge 7 to clean the impurities attached to the outside of the filter cartridge 7.

[0026] With reference to Figure 1 、 Figure 2 and Figure 3 , the adjusting assembly 12 includes a fixed block 123 fixedly installed on the outside of the backwashing pipe 10, and a motor-driven push rod 124 fixedly installed on the right side of the shell 1, the telescopic end of the motor-driven push rod 124 is fixedly connected with the fixed block 123, a fixed cylinder 121 is fixedly connected with the inner wall of the shell 1, a telescopic rod 122 is arranged in the inside of the fixed cylinder 121, the telescopic rod 122 is slidingly connected in the inside of the fixed cylinder 121, and the telescopic rod 122 is fixedly connected with the right side of the water spraying seat 13. A slot 125 is arranged in the inside of the shell 1, the backwashing pipe 10 is slidingly connected in the inside of the slot 125, and the water spraying seat 13 is slidingly connected with the right side of the filter cartridge 7.

[0027] Specifically, when facing a large amount of accumulated impurities, the motor-driven push rod 124 is started to drive the fixed block 123 to slide to the left side. Since the fixed block 123 is connected with the backwashing pipe 10, the sliding of the fixed block 123 drives the backwashing pipe 10 to move, and the movement of the backwashing pipe 10 further drives the water spraying seat 13 to move leftward, so that the water spraying seat 13 is close to the filter cartridge 7. In this process, the telescopic rod 122 slides in the inside of the fixed cylinder 121 to adapt to the position change of the water spraying seat 13. The operator observes through the transparent window 14 on the front side of the shell 1 to adjust the distance between the cleaning spray head 11 and the filter cartridge 7. After the distance adjustment is completed, the motor-driven push rod 124 is closed, and at this time, the cleaning spray head 11 is kept in the appropriate position to clean the impurities on the filter cartridge 7. The cleaned impurities are discharged through the blowdown pipe 9 along with the water flow, and the entire backwashing process is completed.

[0028] Working principle: when using the device, the external water to be filtered flows into the filter cartridge 7 in the shell 1 by opening the water inlet pipe 8. The water is filtered by the filter cartridge 7, the impurities are intercepted outside the filter cartridge 7, and the filtered water flows down from the filter cartridge 7 and is discharged through the drain pipe 15 to complete the normal filtering process.

[0029] When backwashing is needed, the motor 3 is started, the motor 3 output end drives the rotating disc 4 to rotate, the connecting ring 5 at the lower side of the rotating disc 4 rotates, drives the connecting ring 5 to rotate in the rotating groove 6, and further drives the filter cartridge 7 to stably rotate in the shell 1, water is injected to the backwashing pipe 10 by opening the valve of the backwashing pipe 10, the water enters the water spraying seat 13 inside through the backwashing pipe 10, and finally is sprayed out through the cleaning nozzle 11, and the filter cartridge 7 rotates and cooperates, the impurities outside the filter cartridge 7 are cleaned, when the accumulated impurities are large, the electric push rod 124 is started, the electric push rod 124 is retracted, drives the fixed block 123 to slide and connect to the left side, the fixed block 123 drives the backwashing pipe 10 to move, thereby drives the water spraying seat 13 to move left, and is close to the filter cartridge 7, and the telescopic rod 122 slides in the fixed cylinder 121, the distance between the cleaning nozzle 11 and the filter cartridge 7 is observed and adjusted through the transparent window 14, after the adjustment is completed, the electric push rod 124 is closed, the impurities on the filter cartridge 7 are cleaned, and the cleaned impurities are discharged through the blowdown pipe 9.

[0030] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have described, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A backwash filter comprising a housing (1), characterised in that: The upper side of the shell (1) is fixedly connected with a fixing frame (2), the upper side of the fixing frame (2) is fixedly connected with a motor (3), the output end of the motor (3) is fixedly connected with a rotating disc (4), the lower side of the rotating disc (4) is fixedly connected with a connecting ring (5), the inside of the shell (1) is provided with a filter cartridge (7), the filter cartridge (7) is rotatably connected in the inside of the shell (1) through a bearing, the lower side of the connecting ring (5) is fixedly connected on the filter cartridge (7), the left side of the shell (1) is fixedly communicated with a water inlet pipe (8), the lower side of the shell (1) is provided with a drain pipe (15), the left side of the shell (1) is fixedly communicated with a blowdown pipe (9), the inside of the shell (1) is provided with a water spraying seat (13), the water spraying seat (13) is installed with a cleaning spray head (11), the upper side of the water spraying seat (13) is fixedly communicated with a backwashing pipe (10), the backwashing pipe (10) is provided with an adjusting assembly (12), the front side of the shell (1) is installed with a transparent window (14).

2. A backwash filter according to claim 1, characterised in that: The adjusting assembly (12) comprises a fixed block (123), the fixed block (123) is fixedly installed on the outside of the backwashing pipe (10), the right side of the shell (1) is fixedly installed with an electric push rod (124), the telescopic end of the electric push rod (124) is fixedly connected with the fixed block (123), the inner wall of the shell (1) is fixedly connected with a fixed cylinder (121), the inside of the fixed cylinder (121) is provided with a telescopic rod (122), the telescopic rod (122) is fixedly connected with the right side of the water spraying seat (13).

3. A backwash filter according to claim 1, wherein: The inside of the shell (1) is provided with a rotating groove (6), the connecting ring (5) is rotatably connected in the inside of the rotating groove (6).

4. A backwash filter according to claim 2, wherein: The telescopic rod (122) is slidably connected in the inside of the fixed cylinder (121).

5. A backwash filter according to claim 1, wherein: The inside of the shell (1) is provided with a slot (125), the backwashing pipe (10) is slidably connected in the inside of the slot (125).

6. A backwash filter according to claim 1, wherein: The blowdown pipe (9) is arranged on the lower side of the water inlet pipe (8).

7. A backwash filter according to claim 1, wherein: The water spraying seat (13) is slidably connected on the right side of the filter cartridge (7).

8. A backwash filter according to claim 1, wherein: The filter cartridge (7) is rotatably connected in the inside of the shell (1).

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