A backwashable water filter

Abstract

The utility model relates to the technical field of water filters, and discloses a backwashable water filter, the backwashable water filter comprising a filter case and a case cover fixedly mounted on the top of the filter case, a filter core is arranged inside the filter case, a backwashing assembly is arranged inside the filter case on the upper side of the filter core, the backwashing assembly comprises a guide seat fixedly mounted on the outer wall of the filter case, a guide rod is slidably mounted inside the guide seat, one end of the guide rod is located inside the filter case and fixedly mounted with a spray head, the spray head can spray and backwash the corners of the filter core to avoid incomplete cleaning, the connecting frame and the guide rod can be driven to move by an electric push rod, and then the position of the spray head can be moved to adjust the backwashing area and efficiency of the equipment, thereby expanding the backwashing area and efficiency of the equipment and improving the self-cleaning effect of the equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of water filters, in particular to a water filter capable of backwashing. Background Art

[0002] Backwashing, also known as filter flushing, aims to remove impurities trapped in the filter material so that the filter can restore its filtering capacity in a short time. The flushing water methods are generally divided into high-speed water flow backwashing, air-water backwashing and surface-assisted backwashing plus high-speed water flow backwashing. Traditional water filters with good backwashing effects can basically meet people's usage needs.

[0003] In the prior art, a water filter with good backwashing effect is disclosed with authorization announcement number CN217247346U, comprising a water filter body, an upper cover plate, an annular plate and an annular rubber ring, wherein an annular plate is fixed to the upper edge of the water filter body, a second annular groove and two first annular rubber ring grooves are provided on the upper end of the annular plate, and the second annular groove is located on the inner sides of the two first annular rubber ring grooves, a first annular groove and two second annular rubber ring grooves are provided on the lower end of the upper cover plate, and the first annular groove is located on the inner sides of the two second annular rubber ring grooves, a first annular block is integrally provided on the upper end of the annular plate, a second annular block is integrally provided on the lower end of the upper cover plate, and two annular rubber rings of equal specifications are provided. This design solves the problem that the connection method between the upper cover plate and the water filter body of the original device is too simple, and the connection sealing and fixation are poor. It has a reasonable structure and good practicality, and can make the connection between the upper cover plate and the water filter body sufficiently tight and have good fixation.

[0004] In the above technical solution, as the filter element of the water filter increases in usage time, more filter material accumulates. The water filter usually has only one water inlet pipe. When backwashing the filter element, the single water inlet pipe is difficult to quickly flush a large area of ​​the filter element surface, which easily leads to poor flushing effect on the corners of the filter element. For this reason, we propose a backwashable water filter. Utility Model Content

[0005] The utility model provides a backwashable water filter, which solves the problem that the filter element of the water filter accumulates more filter material as the use time increases, and the water filter usually has only one water inlet pipe. When backwashing the filter element, the single water inlet pipe is difficult to quickly wash a large area of ​​the filter element surface, which easily leads to a technical problem of poor washing effect on the corners of the filter element.

[0006] In order to solve the above technical problems, the utility model provides a backwashable water filter, comprising a filter case and a case cover fixedly mounted on the top of the filter case, wherein a filter core is arranged inside the filter case, and a backwashing assembly is arranged on the upper side of the filter core inside the filter case, wherein the backwashing assembly comprises a guide seat fixedly mounted on the outer wall of the filter case, a guide rod is slidably mounted inside the guide seat, one end of the guide rod is located inside the filter case and fixedly mounted with a nozzle, and the two ends of the nozzle respectively extend to two side wall portions in the filter case that are far away from each other;

[0007] A water inlet pipe is installed on the nozzle and connected to the nozzle, and the water inlet pipe passes through the guide rod and is connected to an external water supply system;

[0008] An electric push rod is installed on the top of the box cover, and the output end of the electric push rod is fixedly connected to the other end of the guide rod through a connecting frame.

[0009] Preferably, a water outlet is fixedly mounted on the filter case at the upper side of the filter core, and a water inlet is fixedly mounted on the filter case at the lower side of the filter core.

[0010] Preferably, a sewage discharge assembly for cleaning the filtered material is installed at the inner bottom of the filter case.

[0011] Preferably, the sewage discharge assembly comprises two guide plates installed at the bottom of the filter case, the two guide plates are arranged in a V shape, and a drainage channel is arranged at the connection part of the two guide plates.

[0012] Preferably, one end of the drainage channel is fixedly installed and connected to a sewage outlet, and a valve is installed in the sewage outlet.

[0013] Preferably, a driving structure is installed and connected to the other end of the drainage channel, and the driving structure includes a pressurized water pipe, one end of the pressurized water pipe is connected to the inside of the drainage channel, and the other end of the pressurized water pipe is connected to a water supply system.

[0014] Preferably, the driving structure also includes a mounting seat, which is installed at the other end of the drainage channel, and a driving rod is movably installed inside the mounting seat, one end of the driving rod is movably extended into the drainage channel and a cleaning piece is fixedly installed, and the other end of the driving rod is movably extended to the outside of the drainage channel and is connected to a driving electric push rod.

[0015] Compared with the related art, the backwashable water filter provided by the utility model has the following beneficial effects:

[0016] 1. A backwashable water filter. When in use, the nozzle can spray and backwash the corners of the filter element to avoid incomplete cleaning. The electric push rod can drive the connecting frame and the guide rod to move, and then the position of the nozzle can be adjusted, thereby expanding the area and efficiency of the equipment's backwashing and improving the equipment's self-cleaning effect.

[0017] 2. A backwashable water filter, during flushing, can guide sewage and filtrate into the drainage channel through two V-shaped guide plates, so that the sewage and filtrate can be collected for easy discharge. In addition, during use, the water supply system can supply water to the drainage channel, thereby pushing the sewage and filtrate collected in the drainage channel to the sewage outlet for discharge, further improving the self-cleaning effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a backwashable water filter;

[0019] Figure 2 A schematic diagram of the structure inside a filter case of a backwashable water filter;

[0020] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0021] Figure 4 It is a schematic structural diagram of a filter case of a backwashable water filter from a side view;

[0022] Figure 5 The present invention is a schematic diagram of the structure of a mounting base of a backwashable water filter.

[0023] Numbers in the figure: 1. filter case; 11. filter element; 2. case cover; 3. backwash assembly; 31. guide seat; 32. guide rod; 33. water inlet pipe; 34. nozzle; 35. electric push rod; 36. connecting frame; 4. water outlet; 5. water inlet; 6. sewage discharge assembly; 61. guide plate; 62. drainage channel; 63. sewage discharge port; 64. driving structure; 65. mounting seat; 66. pressurized water pipe; 67. cleaning part; 68. driving rod; 69. driving electric push rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1, by Figure 1-4 The utility model provides a backwashable water filter, comprising a filter case 1 and a case cover 2 fixedly mounted on the top of the filter case 1, a filter element 11 is arranged inside the filter case 1, a backwashing assembly 3 is arranged on the upper side of the filter element inside the filter case 1, the backwashing assembly 3 comprises a guide seat 31 fixedly mounted on the outer wall of the filter case 1, a guide rod 32 is slidably mounted inside the guide seat 31, one end of the guide rod 32 is located inside the filter case 1 and a nozzle 34 is fixedly mounted, and both ends of the nozzle 34 extend to two side wall parts away from each other in the filter case 1, so that the nozzle 34 can spray and backwash the corners of the filter element 11 to avoid incomplete cleaning;

[0026] The nozzle 34 is installed with a water inlet pipe 33 and connected thereto. The water inlet pipe 33 passes through the guide rod 32 and is connected to an external water supply system. The water supply system supplies water to the water inlet pipe 33 and the nozzle 34, so that the device can perform a reverse flushing function.

[0027] An electric push rod 35 is installed on the top of the box cover 2, and the output end of the electric push rod 35 is fixedly connected to the other end of the guide rod 32 through a connecting frame 36. When in use, the electric push rod 35 can drive the connecting frame 36 and the guide rod 32 to move, and then the position of the nozzle 34 can be adjusted, thereby expanding the area and efficiency of the equipment's backwashing and improving the equipment's self-cleaning effect.

[0028] In this embodiment, a water outlet 4 is fixedly installed on the filter case 1 at the upper side of the filter element 11, a water inlet 5 is fixedly installed on the filter case 1 at the lower side of the filter element 11, and a sewage discharge component 6 for cleaning the filtered material is installed at the inner bottom of the filter case 1.

[0029] In this embodiment, the sewage discharge component 6 includes two guide plates 61 installed at the bottom of the filter chassis 1. The two guide plates 61 are arranged in a V shape. A drainage channel 62 is arranged at the connecting part of the two guide plates 61. One end of the drainage channel 62 is fixedly installed and connected to a sewage outlet 63. A valve is installed in the sewage outlet 63. The valve can open or close the sewage outlet 63. During flushing, the two guide plates 61 arranged in a V shape can guide the sewage and the filtrate into the drainage channel 62, so that the sewage and the filtrate can be collected to facilitate discharge.

[0030] In this embodiment, a driving structure 64 is installed and connected to the other end of the drainage channel 62. The driving structure 64 includes a pressurized water pipe 66. One end of the pressurized water pipe 66 is connected to the interior of the drainage channel 62, and the other end of the pressurized water pipe 66 is connected to a water supply system. During use, the water supply system can supply water to the interior of the drainage channel 62, thereby pushing the sewage and filtered material collected in the drainage channel 62 to the sewage outlet 63 for discharge, further enhancing the self-cleaning effect of the equipment.

[0031] Example 2

[0032] See also Figure 5 In the present embodiment, the driving structure 64 further comprises a mounting seat 65, which is mounted on the other end of the drainage channel 62. A driving rod 68 is movably mounted inside the mounting seat 65. One end of the driving rod 68 is movably extended into the drainage channel 62 and a cleaning member 67 is fixedly mounted thereon. The other end of the driving rod 68 is movably extended to the outside of the drainage channel 62 and is connected to a driving electric push rod 69. During use, the driving electric push rod 69 can drive the driving rod 68 to move along the mounting seat 65, thereby driving the cleaning member 67 to move inside the drainage channel 62, cleaning the inner wall of the drainage channel 62 and pushing the sewage and filtered material to move for discharge, which can further enhance the self-cleaning effect of the equipment.

[0033] The working principle of this utility model:

[0034] When in use, the nozzle 34 can spray and reverse flush the corners of the filter element 11 to avoid incomplete cleaning. The electric push rod 35 can drive the connecting frame 36 and the guide rod 32 to move, and then the position of the nozzle 34 can be adjusted, thereby expanding the area and efficiency of the equipment's reverse flushing and improving the equipment's self-cleaning effect.

[0035] During flushing, the two V-shaped guide plates 61 can guide the sewage and filtrate into the drainage channel 62, so that the sewage and filtrate can be collected to facilitate discharge.

[0036] During use, the water supply system can supply water to the interior of the drainage channel 62, thereby pushing the sewage and filtered materials collected in the drainage channel 62 to the sewage outlet 63 for discharge, further improving the self-cleaning effect of the equipment.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A backwashable water filter, comprising a filter case (1) and a case cover (2) fixedly mounted on the top of the filter case (1), wherein a filter core (11) is disposed inside the filter case (1), and a backwashing assembly (3) is disposed on the upper side of the filter core inside the filter case (1), characterized in that: The backwashing assembly (3) comprises a guide seat (31) fixedly mounted on the outer wall of the filter case (1), a guide rod (32) being slidably mounted inside the guide seat (31), one end of the guide rod (32) being located inside the filter case (1) and fixedly mounted with a spray head (34), and both ends of the spray head (34) respectively extending to two side wall portions in the filter case (1) that are away from each other; A water inlet pipe (33) is installed on the spray head (34) and is in communication with the spray head. The water inlet pipe (33) passes through the guide rod (32) and is connected to an external water supply system. An electric push rod (35) is installed on the top of the box cover (2), and the output end of the electric push rod (35) is fixedly connected to the other end of the guide rod (32) through a connecting frame (36).

2. A backwashable water filter according to claim 1, characterized in that: A water outlet (4) is fixedly mounted on the filter case (1) at the upper side of the filter core (11), and a water inlet (5) is fixedly mounted on the filter case (1) at the lower side of the filter core (11).

3. A backwashable water filter according to claim 1, characterized in that: The inner bottom of the filter case (1) is provided with a sewage discharge assembly (6) for cleaning filtered objects.

4. A backwashable water filter according to claim 3, characterized in that: The sewage discharge assembly (6) comprises two guide plates (61) installed at the bottom of the filter housing (1); the two guide plates (61) are arranged in a V shape; and a drainage channel (62) is arranged at the connection portion of the two guide plates (61).

5. A backwashable water filter according to claim 4, characterized in that: One end of the drainage channel (62) is fixedly installed and connected to a sewage outlet (63), and a valve is installed in the sewage outlet (63).

6. A backwashable water filter according to claim 5, characterized in that: The other end of the drainage channel (62) is installed with and connected to a driving structure (64), the driving structure (64) comprises a pressurized water pipe (66), one end of the pressurized water pipe (66) is connected to the interior of the drainage channel (62), and the other end of the pressurized water pipe (66) is connected to a water supply system.

7. A backwashable water filter according to claim 6, characterized in that: The driving structure (64) further comprises a mounting seat (65), wherein the mounting seat (65) is mounted at the other end of the drainage channel (62), wherein a driving rod (68) is movably mounted inside the mounting seat (65), wherein one end of the driving rod (68) movably extends into the drainage channel (62) and is fixedly mounted with a cleaning member (67), and the other end of the driving rod (68) movably extends to the outside of the drainage channel (62) and is connected to a driving electric push rod (69).

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