Self-cleaning pre-filter

Abstract

The utility model relates to the technical field of prefilters, and discloses a self-cleaning prefilter which comprises a shell, a water inlet pipe is fixedly connected to one side of the upper end of the shell, a water outlet pipe is fixedly connected to the outer side of the end, away from the water inlet pipe, of the shell, a filter element is fixedly connected into the shell, and a blow-off pipe is fixedly connected to the outer side of the lower end of the shell. The upper end of the shell is fixedly connected with a centrifugal assembly, the outer side of the upper end of the centrifugal assembly is fixedly connected with a rotating assembly, and the outer end of the rotating assembly is fixedly connected with a beating assembly. Meanwhile, the centrifugal assembly drives the rotating assembly and the beating assembly to operate, impurities and the like attached to the outer side of the filter element are shaken off through beating of the beating assembly, the impact force of the water flow is effectively enhanced, the washing effect of the water flow on the filter element is improved, and meanwhile the cleaning effect is better improved through vibration.

Description

Technical Field

[0001] The utility model relates to the technical field of pre-filters, and in particular to a self-cleaning pre-filter. Background Art

[0002] The self-cleaning pre-filter is a filtering device installed in the water pipe for household water use. Its main function is to filter impurities carried in the water of the water inlet pipe. It is generally composed of an inlet pipe, an outlet pipe, an outer shell, a filter element and a sewage pipe. When filtering the water inlet, water is injected into the inner side of the outer shell through the inlet pipe, and then filtered by the filter element and discharged through the outlet pipe. The sewage pipe is in a closed state. When self-cleaning is required, the inlet pipe is closed and the sewage outlet is opened. Water is injected through the outlet pipe, and the impurities attached to the outside of the filter element are flushed by the water flowing outward from the inside of the filter element. Then the sewage is discharged through the sewage pipe to achieve the self-cleaning effect.

[0003] After searching, it is proposed in Chinese application number CN202120635623.1 that a self-cleaning pre-filter comprises a shell with a filter element inside, the filter element comprises a filter bracket installed in the shell and a filter screen sleeved on the outside of the filter bracket, a water inlet and a water outlet are provided on the shell, a water inlet channel connected to the water inlet is formed between the filter screen and the inner wall of the shell, a water outlet channel connected to the water outlet is formed inside the filter screen, and a vibrating member is installed on the filter bracket. When the water flow impacts the vibrating member, the vibrating member drives the filter element to vibrate to clean impurities attached to the filter screen. The above-mentioned prior art proposes to use the impact of the water flow to drive the vibrating member to operate, so as to hit the filter element with the help of the operation of the vibrating member, thereby removing impurities attached to the filter element, thereby achieving the effect of improving the cleaning effect.

[0004] As for the self-cleaning pre-filter used in household water, due to the relatively low water pressure of household water in daily use, when using the impact of water flow to flush the filter element or drive the vibrator to clean the filter element, it is easy for the impact force to be insufficient, resulting in unsatisfactory cleaning effect, and then causing the filter element to be blocked, affecting the subsequent filtration efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a self-cleaning pre-filter to solve the problem that the self-cleaning pre-filter in the prior art uses the flow of water to achieve self-cleaning, which is prone to insufficient water flow impact force, resulting in poor self-cleaning effect.

[0006] The utility model provides the following technical solution: a self-cleaning pre-filter, comprising a shell, a water inlet pipe fixedly connected to one side of the upper end of the shell, and a water outlet pipe fixedly connected to the outer side of one end of the shell away from the water inlet pipe, a filter element fixedly connected to the inside of the shell, and a sewage pipe fixedly connected to the outer side of the lower end of the shell, a centrifugal assembly fixedly connected to the upper end of the shell, and a rotating assembly fixedly connected to the outer side of the upper end of the centrifugal assembly, and a striking assembly fixedly connected to the outer end of the rotating assembly.

[0007] As a preferred embodiment of the above technical solution, a transmission assembly is fixedly connected to the lower side of the centrifugal assembly, and the transmission assembly includes a second rotating rod fixedly connected to the lower side of the centrifugal assembly, the lower end of the second rotating rod passes through the filter element and is rotatably connected to the inner side of the lower end of the outer shell, and a waterproof cover is sleeved on the outer side of the lower end of the second rotating rod, the lower side of the waterproof cover is fixedly connected to the outer shell, and a first bevel gear is fixedly connected to the outer side of the lower end of the waterproof cover, and a second bevel gear is meshed on the outer side of one end of the first bevel gear.

[0008] As a preferred embodiment of the above technical solution, a dredging component is fixedly connected to the side of the second bevel gear away from the first bevel gear, and the dredging component includes a third rotating rod fixedly connected to the middle end of the side of the second bevel gear away from the first bevel gear, one end of the third rotating rod away from the second bevel gear passes through and is connected to the waterproof cover, and a threaded rod is fixedly connected to the outer side of one end of the third rotating rod away from the second bevel gear, and the outer side of the threaded rod is inserted into the sewage pipe.

[0009] As a preferred embodiment of the above technical solution, the centrifugal assembly includes a protective cover fixedly connected to the upper side of the outer shell, and a motor is inserted into the inner side of the protective cover, the lower side of the motor is fixedly connected to the outer shell, and the motor output shaft is fixedly connected to a first rotating rod, the lower end of the first rotating rod passes through the outer shell and is inserted in the filter element, and the lower side of the first rotating rod is fixedly connected to the second rotating rod, and the outer side of the lower end of the first rotating rod is fixedly connected to a fan blade.

[0010] As a preferred embodiment of the above technical solution, the rotating assembly includes a rotating disk fixedly connected to the outer side of the upper end of the first rotating rod, and a rotating plate is fixedly connected to the outer side of the rotating disk.

[0011] As a preferred embodiment of the above technical solution, the striking assembly includes a connecting block rotatably connected to one end of the rotating plate away from the rotating disk, and a rubber block is fixedly connected to one side of the connecting block.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] This self-cleaning pre-filter, when automatic cleaning is required, water is injected into the outer shell through the water outlet pipe, and the centrifugal component is started synchronously, and the injected water is driven to rotate by the centrifugal component, thereby increasing the impact force of the water. At the same time, the centrifugal component drives the rotating component and the striking component to operate, and the impurities attached to the outside of the filter element are shaken off by the striking of the striking component, thereby effectively increasing the impact force of the water, thereby increasing the flushing effect of the water on the filter element, and at the same time, the cleaning effect is better improved with the help of vibration.

[0014] The self-cleaning pre-filter has a centrifugal component that drives the dredging component to operate through the transmission component when the centrifugal component is in operation, so as to dredge the sewage pipe, effectively preventing impurities from accumulating in the sewage pipe and causing blockage, thereby further improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of a self-cleaning pre-filter;

[0016] Figure 2 It is a schematic diagram of a front cross-sectional structure of a self-cleaning pre-filter;

[0017] Figure 3 It is a schematic diagram of a cross-sectional structure of a self-cleaning pre-filter viewed from above;

[0018] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0019] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point B in the middle.

[0020] In the figure: 1. outer casing; 11. water inlet pipe; 12. water outlet pipe; 13. filter element; 14. sewage pipe; 2. protective cover; 21. motor; 22. first rotating rod; 23. fan blades; 3. turntable; 31. rotating plate; 4. connecting block; 41. rubber block; 5. second rotating rod; 51. waterproof cover; 52. first bevel gear; 53. second bevel gear; 6. third rotating rod; 61. threaded rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] like Figure 1-4As shown, the utility model provides a technical solution: a self-cleaning pre-filter, comprising a shell 1, a water inlet pipe 11 is fixedly connected to one side of the upper end of the shell 1, and a water outlet pipe 12 is fixedly connected to the outer side of one end of the shell 1 away from the water inlet pipe 11, a filter element 13 is fixedly connected inside the shell 1, and a sewage pipe 14 is fixedly connected to the outer side of the lower end of the shell 1, a centrifugal assembly is fixedly connected to the upper end of the shell 1, and a rotating assembly is fixedly connected to the outer side of the upper end of the centrifugal assembly, and a striking assembly is fixedly connected to the outer end of the rotating assembly. When automatic cleaning is required, after water flows into the shell 1 through the outlet pipe 12, the centrifugal assembly is started synchronously, and the centrifugal assembly is used to drive the injected water to rotate, thereby increasing the impact force of the water flow, and at the same time, the centrifugal assembly drives the rotating assembly and the striking assembly to operate, and the striking of the striking assembly is used to shake off impurities attached to the outer side of the filter element 13, thereby effectively increasing the impact force of the water flow, thereby increasing the flushing effect of the water flow on the filter element 13, and at the same time, the cleaning effect is better improved with the help of vibration.

[0023] like Figure 5 As shown, a transmission assembly is fixedly connected to the lower side of the centrifugal assembly, and the transmission assembly includes a second rotating rod 5 fixedly connected to the lower side of the centrifugal assembly, the lower end of the second rotating rod 5 passes through the filter element 13 and is rotatably connected to the inner side of the lower end of the outer shell 1, and a waterproof cover 51 is sleeved on the outer side of the lower end of the second rotating rod 5, the lower side of the waterproof cover 51 is fixedly connected to the outer shell 1, and the outer side of the lower end of the waterproof cover 51 is fixedly connected to a first bevel gear 52, and a second bevel gear 53 is meshed on the outer side of one end of the first bevel gear 52. The centrifugal assembly will drive the second rotating rod 5 and the first bevel gear 52 to rotate. After the first bevel gear 52 rotates, it drives the second bevel gear 53 and the dredging assembly to operate through meshing with the second bevel gear 53, which is convenient for transmitting the power of the centrifugal assembly, thereby driving the dredging assembly to operate.

[0024] like Figure 5 As shown, the side of the second bevel gear 53 away from the first bevel gear 52 is fixedly connected to a dredging component, and the dredging component includes a third rotating rod 6 fixedly connected to the middle end of the side of the second bevel gear 53 away from the first bevel gear 52, one end of the third rotating rod 6 away from the second bevel gear 53 passes through and is connected to the waterproof cover 51, and the outer side of the end of the third rotating rod 6 away from the second bevel gear 53 is fixedly connected to a threaded rod 61, and the outer side of the threaded rod 61 is inserted into the sewage pipe 14. After the first bevel gear 52 rotates, it drives the second bevel gear 53, the third rotating rod 6 and the threaded rod 61 to rotate through the engagement with the second bevel gear 53, so that the inner side of the sewage pipe 14 can be dredged by the rotation of the threaded rod 61, thereby improving the discharge speed of sewage.

[0025] like Figure 2As shown, the centrifugal assembly includes a protective cover 2 fixedly connected to the upper side of the outer shell 1, and a motor 21 is inserted into the inner side of the protective cover 2, the lower side of the motor 21 is fixedly connected to the outer shell 1, and the output shaft of the motor 21 is fixedly connected to a first rotating rod 22, the lower end of the first rotating rod 22 passes through the outer shell 1 and is inserted in the filter element 13, and the lower side of the first rotating rod 22 is fixedly connected to the second rotating rod 5, and the outer side of the lower end of the first rotating rod 22 is fixedly connected to a fan blade 23. After the motor 21 is started, the output shaft drives the first rotating rod 22 and the fan blade 23 to rotate. After the fan blade 23 rotates, it drives the water flow to rotate, applies centrifugal force to the water flow, and thus throws it out. The thrown water passes through the filter element 13 and washes the impurities attached to the outer end of the filter element 13, so as to increase the flow rate of the water flow, thereby improving the washing effect of the filter element 13.

[0026] like Figure 3 and Figure 4 As shown, the rotating assembly includes a turntable 3 fixedly connected to the outer side of the upper end of the first rotating rod 22, and a turntable 31 is fixedly connected to the outer side of the turntable 3. At the same time, the rotation of the first rotating rod 22 drives the turntable 3 and the turntable 31 to rotate. After the turntable 31 rotates, it drives the striking assembly to strike the inner wall of the filter element 13, which is convenient for transmitting the rotation of the first rotating rod 22, thereby driving the striking assembly to operate.

[0027] like Figure 4 As shown, the striking assembly includes a connecting block 4 rotatably connected to one end of a rotating plate 31 away from the turntable 3, and a rubber block 41 is fixedly connected to one side of the connecting block 4. After the rotating plate 31 rotates, it drives the connecting block 4 and the rubber block 41 to strike the inner wall of the filter element 13, and the filter element 13 is vibrated by the striking of the rubber block 41, thereby assisting the water flow to clean the impurities on the outside of the filter element 13, so that the impurities on the outside of the filter element 13 can be cleaned by the striking auxiliary water flow.

[0028] Working principle: When the self-cleaning pre-filter is in use, water is injected through the water inlet pipe 11, the injected water enters the housing 1, passes through the outer end of the filter element 13 for filtration, and then enters the inside of the filter element 13 and is discharged through the water outlet pipe 12. At this time, the filter element 13 is closed. When self-cleaning is required later, the sewage pipe 14 and the motor 21 are opened to close the water inlet pipe 11, and then water is injected into the housing 1 through the water outlet pipe 12. At this time, the water flows into the inside of the filter element 13 and flows out through the outer end of the filter element 13. After the motor 21 is started, the output shaft drives the first rotating rod 22 and the fan blades 23 to rotate. After the fan blades 23 rotate, the water flow is driven to rotate, and centrifugal force is applied to the water flow to throw it out. The thrown water passes through the filter element 13 and hits the filter element The impurities attached to the outer end of the filter element 13 are washed away, and at the same time, the first rotating rod 22 rotates to drive the rotating disk 3 and the rotating plate 31 to rotate. After the rotating plate 31 rotates, it drives the connecting block 4 and the rubber block 41 to hit the inner wall of the filter element 13. The hitting of the rubber block 41 makes the filter element 13 vibrate, thereby assisting the water flow to clean the impurities on the outside of the filter element 13, and the cleaned sewage is discharged through the sewage pipe 14. The first rotating rod 22 drives the second rotating rod 5 and the first bevel gear 52 to rotate. After the first bevel gear 52 rotates, it drives the second bevel gear 53, the third rotating rod 6 and the threaded rod 61 to rotate through the engagement with the second bevel gear 53, and the threaded rod 61 is used to dredge the sewage pipe 14.

[0029] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A self-cleaning pre-filter, comprising a housing (1), characterized in that: A water inlet pipe (11) is fixedly connected to one side of the upper end of the shell (1), and a water outlet pipe (12) is fixedly connected to the outer side of an end of the shell (1) away from the water inlet pipe (11), a filter element (13) is fixedly connected inside the shell (1), and a sewage pipe (14) is fixedly connected to the outer side of the lower end of the shell (1), a centrifugal assembly is fixedly connected to the upper end of the shell (1), and a rotating assembly is fixedly connected to the outer side of the upper end of the centrifugal assembly, and a striking assembly is fixedly connected to the outer end of the rotating assembly.

2. A self-cleaning pre-filter according to claim 1, characterized in that: The lower side of the centrifugal assembly is fixedly connected to a transmission assembly, and the transmission assembly comprises a second rotating rod (5) fixedly connected to the lower side of the centrifugal assembly, the lower end of the second rotating rod (5) passes through the filter element (13) and is rotatably connected to the inner side of the lower end of the housing (1), and a waterproof cover (51) is sleeved on the outer side of the lower end of the second rotating rod (5), the lower side of the waterproof cover (51) is fixedly connected to the housing (1), and the outer side of the lower end of the waterproof cover (51) is fixedly connected to a first bevel gear (52), and the outer side of one end of the first bevel gear (52) is meshed with a second bevel gear (53).

3. A self-cleaning pre-filter according to claim 2, characterized in that: A dredging assembly is fixedly connected to the side of the second bevel gear (53) away from the first bevel gear (52), and the dredging assembly includes a third rotating rod (6) fixedly connected to the middle end of the side of the second bevel gear (53) away from the first bevel gear (52), one end of the third rotating rod (6) away from the second bevel gear (53) passes through and is connected to the waterproof cover (51), and a threaded rod (61) is fixedly connected to the outer side of the end of the third rotating rod (6) away from the second bevel gear (53), and the outer side of the threaded rod (61) is inserted into the sewage pipe (14).

4. A self-cleaning pre-filter according to claim 1, characterized in that: The centrifugal assembly comprises a protective cover (2) fixedly connected to the upper side of the outer shell (1), and a motor (21) is inserted into the inner side of the protective cover (2); the lower side of the motor (21) is fixedly connected to the outer shell (1), and the output shaft of the motor (21) is fixedly connected to a first rotating rod (22); the lower end of the first rotating rod (22) passes through the outer shell (1) and is inserted into the filter element (13); the lower side of the first rotating rod (22) is fixedly connected to the second rotating rod (5), and the outer side of the lower end of the first rotating rod (22) is fixedly connected to a fan blade (23).

5. A self-cleaning pre-filter according to claim 4, characterized in that: The rotating assembly comprises a rotating disc (3) fixedly connected to the outer side of the upper end of the first rotating rod (22), and a rotating plate (31) is fixedly connected to the outer side of the rotating disc (3).

6. A self-cleaning pre-filter according to claim 5, characterized in that: The striking assembly comprises a connecting block (4) rotatably connected to one end of a rotating plate (31) away from the rotating disk (3), and a rubber block (41) is fixedly connected to one side of the connecting block (4).

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