Filter element with backwashing function

Abstract

The utility model discloses a filter element with a backwashing function, which comprises a shell, an inner cover is inserted into the top end of the shell, an outer cover is sleeved on the outer wall of the top end of the shell, a blow-off pipe is arranged on the outer wall of the bottom of the shell, a lining inserted into the top end of the shell is arranged at the bottom of the inner cover, and a top pipe with a convex structure is arranged at the top of the inner cover. A plurality of water passing holes are formed in the outer wall of the top of the inner cover. The framework and the filter cloth form a filter element structure and are mounted in the shell, so that water enters the shell through the water inlet pipe, the water is filtered through the filter cloth, clean water enters the water outlet pipe through the filter cloth, impurities are adsorbed or intercepted on the outer side of the filter cloth, and if people connect the water outlet pipe into a water source, the water can be filtered out through the filter cloth. The filter element is arranged in the shell, so that the backwashing effect on the filter cloth can be achieved, impurities intercepted on the outer side of the filter cloth can be discharged out of the shell through the blow-off pipe, repeated recycling of the filter element is achieved, and the use cost of the humidifier is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filter elements, in particular to a filter element with a backwashing function. Background Art

[0002] A humidifier can humidify a designated space to increase the humidity of the air, meet the health needs of people, meet the environmental requirements of animal and plant breeding, and meet the humidity requirements of product use. Since humidifiers are generally used in spaces where people move around, the water used in humidifiers must be relatively clean. Generally, a filter is installed inside the humidifier to filter out impurities and bacteria in the water.

[0003] At present, the filter generally used in the humidifier is mainly composed of an upper cover, a lower cover and an outer shell. Its structure and function are relatively simple. After filtering water for a period of time, the filter element needs to be replaced, which requires people to invest extra costs when using the humidifier again. At the same time, the replacement of the filter element is also relatively troublesome, which is not convenient for people to use the humidifier for a long time. Therefore, it is urgent to design a filter element with a backwashing function to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a filter element with a backwashing function to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A filter element with backwashing function comprises an outer shell, an inner cover is inserted into the top of the outer shell, and an outer cover is sleeved on the outer wall of the top of the outer shell, a sewage pipe is arranged on the outer wall of the bottom of the outer shell, an inner liner inserted into the top of the outer shell is arranged at the bottom of the inner cover, a top pipe with a protruding structure is arranged at the top of the inner cover, a plurality of water holes are arranged on the outer wall of the top of the inner cover, a frame is fixedly installed at the bottom of the inner cover, and a detachable filter cloth is sleeved on the outside of the frame, a water inlet pipe is arranged on the outer wall of one side of the top of the outer cover, and a water outlet pipe is arranged at the center of the top of the outer cover.

[0007] Preferably, a convex edge is arranged on the top of the shell, and a plurality of ribs which are equidistantly distributed in a ring shape are fixedly arranged on the outer wall of the bottom of the convex edge.

[0008] Preferably, the top of the shell is provided with an external thread, and the inner wall of the outer cover is provided with an internal thread matching the external thread.

[0009] Preferably, a sealing groove, a sealing ring 1, a sealing ring 2 and a sealing ring 3 are provided between the outer shell and the inner cover, the inner cover and the outer cover, and the outer shell and the outer cover.

[0010] Preferably, a pressure plate is provided inside the outer cover, and a center hole is provided on the pressure plate, and the top pipe is inserted into the center hole of the pressure plate.

[0011] Preferably, the frame and filter cloth form a water filter cavity with the outer shell, the water inlet pipe, water hole and water filter cavity are connected, the water outlet pipe is connected to the inside of the filter cloth, and the sewage pipe is connected to the water filter cavity.

[0012] In the above technical solution, the filter element with backwashing function provided by the utility model has the following beneficial effects:

[0013] The skeleton and filter cloth are used to form the filter element structure, and are installed inside the outer shell, so that water enters the inner part of the outer shell through the water inlet pipe, and the water is filtered through the filter cloth. Clean water enters the water outlet pipe through the filter cloth, and impurities are adsorbed or retained on the outside of the filter cloth. If people connect the water outlet pipe to the water source, the backwashing effect of the filter cloth can be achieved, and the impurities retained on the outside of the filter cloth can be discharged from the outer shell through the drain pipe, thereby realizing multiple recycling of the filter element and reducing the use cost of the humidifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 A schematic structural diagram of a filter element with backwashing function according to an embodiment of the utility model.

[0016] Figure 2 A schematic diagram of the explosion structure provided for an embodiment of a filter element with backwashing function of the utility model.

[0017] Figure 3 A schematic diagram of the structure of the housing and outer cover provided for an embodiment of the filter element with backwashing function of the utility model.

[0018] 1 outer shell, 2 outer cover, 3 inner cover, 4 ribs, 5 sewage pipe, 6 flange, 7 external thread, 8 sealing ring 1, 9 lining, 10 sealing ring 2, 11 top pipe, 12 sealing ring 3, 13 water hole, 14 frame, 15 filter cloth, 16 water inlet pipe, 17 water outlet pipe, 18 internal thread, 19 pressure plate, 20 sealing groove. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] like Figure 1-3 As shown, the filter element with backwashing function provided by the embodiment of the utility model includes an outer shell 1, an inner cover 3 is inserted into the top of the outer shell 1, and an outer cover 2 is sleeved on the outer wall of the top of the outer shell 1, a sewage pipe 5 is arranged on the outer wall of the bottom of the outer shell 1, an inner liner 9 inserted into the top of the outer shell 1 is arranged at the bottom of the inner cover 3, a top pipe 11 with a protruding structure is arranged at the top of the inner cover 3, a plurality of water holes 13 are arranged on the outer wall of the top of the inner cover 3, a skeleton 14 is fixedly installed at the bottom of the inner cover 3, and a detachable filter cloth 15 is sleeved on the outside of the skeleton 14, a water inlet pipe 16 is arranged on the outer wall of one side of the top of the outer cover 2, and a water outlet pipe 17 is arranged at the center of the top of the outer cover 2.

[0021] Specifically, in this embodiment, it includes an outer shell 1, which is made of plastic and serves as a water storage cavity. An inner cover 3 is inserted into the top of the outer shell 1, and an outer cover 2 is sleeved on the outer wall of the top of the outer shell 1. The structure of the outer shell 1, the outer cover 2 and the inner cover 3 is convenient for people to disassemble the filter. A sewage pipe 5 is arranged on the outer wall of the bottom of the outer shell 1 to discharge the dirt inside the outer shell 1. An inner liner 9 is arranged at the bottom of the inner cover 3 and inserted into the top of the outer shell 1. The inner liner 9 is inserted into the inside of the outer shell 1, which facilitates the installation between the inner cover 3 and the outer shell 1 and improves its sealing performance. A top pipe 11 with a protruding structure is arranged on the top of the inner cover 3. A plurality of water holes 13 are arranged on the outer wall at the top of the inner cover 3. The water holes 13 are used to facilitate water to enter the interior of the outer shell 1 through the water inlet pipe 16 through the inner cover 3. A frame 14 is fixedly installed at the bottom of the inner cover 3, and a detachable filter cloth 15 is sleeved on the outside of the frame 14. The filter cloth 15 is sleeved on the outside of the frame 14 to form a filter element structure with a backwashing function. A water inlet pipe 16 is arranged on the outer wall on one side of the top of the outer cover 2, which is connected to the water source through the water inlet pipe 16, and a water outlet pipe 17 is arranged at the center of the top of the outer cover 2. The water outlet pipe 17 can be connected to a humidifier, so as to start the humidifier to achieve humidification of the room.

[0022] The frame 14 and the filter cloth 15 form a water filter cavity with the outer shell 1, the water inlet pipe 16, the water hole 13 and the water filter cavity are connected, the water outlet pipe 17 is connected to the inside of the filter cloth 15, and the sewage pipe 5 is connected to the water filter cavity.

[0023] The filter element with backwashing function provided by the utility model adopts a frame 14 and a filter cloth 15 to form a filter element structure, and is installed inside the shell 1, so that water enters the inside of the shell 1 through the water inlet pipe 16, and the water is filtered through the filter cloth 15. Clean water enters the water outlet pipe 17 through the filter cloth 15, and impurities are adsorbed or retained on the outside of the filter cloth 15. If people connect the water outlet pipe 16 to a water source, the backwashing effect of the filter cloth 15 can be achieved, and the impurities retained on the outside of the filter cloth 15 can be discharged from the shell through the sewage pipe 5, so that the filter element can be recycled for many times, and the use cost of the humidifier is reduced.

[0024] As an embodiment provided by the utility model, a flange 6 is provided on the top of the shell 1. After the outer cover 2 is screwed onto the shell 1, the flange can contact the outer cover 2, thereby ensuring the tightness of the connection between the outer cover 2 and the shell 1, and a plurality of ribs 4 equidistantly distributed in a ring shape are fixedly provided on the outer wall at the bottom of the flange 6. The ribs 4 are provided to improve the overall strength of the shell, thereby ensuring that the filter has a longer service life.

[0025] In another embodiment provided by the utility model, an external thread 7 is provided on the top of the outer shell 1, and an internal thread 18 matching the external thread 7 is provided on the inner wall of the outer cover 2. By matching the internal thread 18 provided on the outer cover 2 and the external thread 7 provided on the outer shell 1, the fixed installation of the outer cover 2 on the outer shell 1 can be achieved more quickly.

[0026] As another embodiment provided by the utility model, a sealing groove 20, a sealing ring 1 8, a sealing ring 2 10 and a sealing ring 3 12 are provided between the outer shell 1 and the inner cover 3, the inner cover 3 and the outer cover 2, and the outer shell 1 and the outer cover 2. The sealing ring 1 8, the sealing ring 2 10 and the sealing ring 3 12 are all annular sealing rings with slightly different diameters. The sealing ring 1 8, the sealing ring 2 10 and the sealing ring 3 12 are sleeved on the outer shell 1 and the inner cover 3, and cooperate with the sealing groove 20 on the outer shell 1, the inner cover 3 and the outer cover 2, so as to achieve a better seal between the three and prevent internal water from seeping out.

[0027] As another embodiment provided by the utility model, a pressure plate 19 is provided inside the outer cover 2, and a center hole is provided on the pressure plate 19, and the top pipe 11 is inserted into the center hole of the pressure plate 19. After the outer cover 2 is screwed on the outer shell 1, the outer cover 2 will squeeze the inner cover 3, so that the connection between the inner cover 3 and the outer shell 1 is tighter.

[0028] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A filter element with backwashing function, comprising a housing (1), characterized in that: An inner cover (3) is inserted into the top of the outer shell (1), and an outer cover (2) is sleeved on the outer wall of the top of the outer shell (1); a sewage pipe (5) is arranged on the outer wall of the bottom of the outer shell (1); an inner liner (9) is arranged at the bottom of the inner cover (3) and is inserted into the top of the outer shell (1); a top pipe (11) with a protruding structure is arranged at the top of the inner cover (3); a plurality of water holes (13) are arranged on the outer wall of the top of the inner cover (3); a frame (14) is fixedly mounted on the bottom of the inner cover (3), and a detachable filter cloth (15) is sleeved on the outside of the frame (14); a water inlet pipe (16) is arranged on the outer wall of one side of the top of the outer cover (2), and a water outlet pipe (17) is arranged at the center of the top of the outer cover (2).

2. The filter element with backwashing function according to claim 1, characterized in that: The top of the shell (1) is provided with a convex edge (6), and a plurality of ribs (4) which are equidistantly distributed in an annular shape are fixedly provided on the outer wall of the bottom of the convex edge (6).

3. The filter element with backwashing function according to claim 1, characterized in that: The top of the outer shell (1) is provided with an external thread (7), and the inner wall of the outer cover (2) is provided with an internal thread (18) matching with the external thread (7).

4. The filter element with backwashing function according to claim 1, characterized in that: A sealing groove (20), a sealing ring 1 (8), a sealing ring 2 (10) and a sealing ring 3 (12) are provided between the outer shell (1) and the inner cover (3), between the inner cover (3) and the outer cover (2), and between the outer shell (1) and the outer cover (2).

5. The filter element with backwashing function according to claim 1, characterized in that: A pressing plate (19) is arranged inside the outer cover (2), and a center hole is arranged on the pressing plate (19), and the top pipe (11) is inserted into the center hole of the pressing plate (19).

6. The filter element with backwashing function according to claim 1, characterized in that: The skeleton (14) and the filter cloth (15) form a water filter cavity with the outer shell (1); the water inlet pipe (16), the water hole (13) and the water filter cavity are connected; the water outlet pipe (17) is connected to the interior of the filter cloth (15); and the sewage pipe (5) is connected to the water filter cavity.

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