Backwash filter element

Abstract

The utility model provides a backwashing filter element, which relates to the technical field of filter elements and comprises a filter element connecting seat and a filter element pressure maintaining assembly, a connecting seat mounting back plate is fixedly mounted at the rear end of the filter element connecting seat, and a first pipeline connector is fixedly mounted at one end of the filter element connecting seat. A second pipeline connector is fixedly mounted at the other end of the filter element connecting seat, a sealing mounting seat is integrally arranged at the lower end of the filter element connecting seat, and the filter element pressure maintaining assembly is arranged at the lower end of the sealing mounting seat; according to the scheme, through the first pipeline connector and the second pipeline connector which are arranged at the two ends of the filter element connecting base and are convenient to connect, the filter element pressure maintaining assembly is communicated with a water path, after the filter element is used for a period of time, a backflushing rotating knob at the lower end is rotated, a limiting convex block is located from one end to the other end of a limiting clamping groove, and the filtering direction of the filter element pressure maintaining assembly is adjusted; therefore, after the filter element pressure maintaining assembly is used for a period of time, filtered substances can be flushed out, and the filter element pressure maintaining assembly can be flushed.

Description

Technical Field

[0001] This utility model relates to the field of filter cartridge technology, and more specifically, to backwashing filter cartridges. Background Technology

[0002] A cartridge-type liquid filter is a new type of multifunctional filter, consisting of two parts: a filter element and a filter cartridge. The filter cartridge is the main component that filters substances from the liquid. It allows liquid to pass through while blocking substances, such as the faucet filter cartridge with application number CN201620545861.2. However, in practical implementation, the filter cartridge accumulates a large amount of substances over time. While this doesn't affect the filtration effect, it does affect water flow and water pressure. Utility Model Content

[0003] The main purpose of this invention is to provide a backwash filter element that can effectively solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A backwash filter element includes a filter element connector and a filter element pressure holding assembly. A connector mounting back plate is fixedly installed at the rear end of the filter element connector. A first pipe connector is fixedly installed at one end of the filter element connector, and a second pipe connector is fixedly installed at the other end of the filter element connector. A sealing mounting seat is integrally provided at the lower end of the filter element connector, and the filter element pressure holding assembly is located at the lower end of the sealing mounting seat.

[0006] Preferably, the lower end of the filter element pressure-holding assembly is provided with a limiting ring, and the front end of the limiting ring is provided with a limiting groove.

[0007] Preferably, a recoil rotation knob is rotatably installed inside the limiting ring, and a limiting protrusion is integrally provided on the side of the recoil rotation knob, and the limiting protrusion is disposed in the limiting groove.

[0008] Preferably, the filter element pressure holding assembly includes: a pressure holding upper shell, a sealing connecting ring, a connecting upper channel, a filter element pressure holding outer shell, a second connecting pipe port, and a fixing flange;

[0009] The sealing ring is connected to the lower end of the sealing mounting base. The lower end of the sealing ring is integrally provided with a pressure-holding upper shell. The lower end of the pressure-holding upper shell is integrally provided with a filter element pressure-holding assembly. The upper inner wall of the pressure-holding upper shell is integrally provided with a fixing flange.

[0010] The fixed flange has several second connection pipe ports, half of which are integrally connected to a connecting pipe.

[0011] Preferably, the upper end of the connecting channel is integrally provided with an upper channel converging cavity, and the side of the upper channel converging cavity is integrally provided with a first connecting pipe.

[0012] Preferably, the first connecting pipe is fixedly connected to the inner end of the first pipe connector.

[0013] Preferably, a filter element rotating plate is rotatably mounted on the lower end of the fixed flange, and a plurality of filter element pipe sealing ports are integrally provided on the upper end of the filter element rotating plate. Filter element pipes are connected to the lower ends of the filter element pipe sealing ports, and a sealed filter element inner shell is integrally provided on the lower end of the filter element rotating plate.

[0014] The lower end of the inner shell of the sealed filter element is provided with an inner shell mounting base, and a knob connecting seat is fixedly connected to the lower end of the inner shell mounting base.

[0015] Preferably, the filter element pipe sealing port corresponds to the second connecting pipe port, the sealing connecting ring communicates with the inside of the filter element connecting seat, and the knob connecting seat is rotatably sealed to the lower end of the filter element pressure-holding shell and fixedly connected to the back-jet rotating knob.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) This solution connects the filter element pressure holding assembly to the water circuit through the first pipe connector and the second pipe connector at both ends of the filter element connector seat. After a period of use, the backwash rotation knob at the lower end is rotated to move the limiting protrusion from one end to the other end of the limiting slot, thereby turning the filtration direction of the filter element pressure holding assembly. After a period of use, the filtered material can be flushed out, thus rinsing the filter element pressure holding assembly.

[0018] (2) This solution drives the knob connection seat at the lower end of the filter element pressure holding assembly by rotating the back-jet rotary knob, thereby driving the upper sealed filter element inner shell to rotate through the inner shell mounting base, thereby enabling the upper filter element rotating plate to rotate, causing the filter element pipe sealing port to alternate with the upper connection channel and the second connection pipe port at the upper end. This allows the filter element pipe that originally entered the upper channel gathering chamber from the first connection pipe and entered the lower end from the upper connection channel to flow out of the upper second connection pipe port through the other part of the filter element pipe, and then enter the filter element connecting seat shell from the sealing mounting seat at the outer end of the upper connection channel. The water path flowing out from the second pipe connector outside the upper channel gathering chamber and the first connection pipe is reversed.

[0019] After replacement, connect the filter cartridge corresponding to the first connection and the filter cartridge corresponding to the second connection port to reverse the flow of material accumulated on the filter cartridge. After rinsing for a period of time, it can be used again until the next reverse rinsing. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention from a first-person perspective;

[0021] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0022] Figure 3 This is a three-dimensional structural diagram of the present invention from a third-view perspective;

[0023] Figure 4 This is a three-dimensional structural diagram of the filter element pressure-maintaining assembly in this utility model;

[0024] Figure 5 This is a three-dimensional side view of the filter element pressure-maintaining assembly in this utility model;

[0025] Figure 6 This utility model Figure 5 A three-dimensional schematic diagram of the cross-sectional structure of line aa in the middle;

[0026] Figure 7 This is a three-dimensional front view of the filter element pressure-maintaining assembly in this utility model;

[0027] Figure 8 This utility model Figure 7 A three-dimensional schematic diagram of the cross-sectional structure of the middle BB line.

[0028] In the diagram: 1. Filter element connector; 2. Connector mounting back plate; 3. First pipe connector; 4. Second pipe connector; 5. Sealing mounting base; 6. Filter element pressure holding assembly; 601. Pressure holding top shell; 602. Sealing connection ring; 603. Upper connection channel; 604. Upper channel converging chamber; 605. First connecting pipe; 606. Filter element pressure holding outer shell; 607. Filter element upper rotating plate; 608. Sealed filter element inner shell; 609. Filter element pipe sealing port; 610. Knob connector; 611. Inner shell mounting base; 612. Filter element pipe; 613. Second connecting pipe port; 614. Fixed flange; 7. Backflush rotating knob; 8. Limiting retaining ring; 9. Limiting retaining groove; 10. Limiting protrusion. Detailed Implementation

[0029] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0030] like Figure 1 , Figure 2, Figure 3 As shown in the figure, this utility model embodiment proposes a backwash filter element, including a filter element connecting seat 1 and a filter element pressure holding assembly 6. A connecting seat mounting back plate 2 is fixedly installed at the rear end of the filter element connecting seat 1. A first pipe connector 3 is fixedly installed at one end of the filter element connecting seat 1, and a second pipe connector 4 is fixedly installed at the other end of the filter element connecting seat 1. A sealing mounting seat 5 is integrally provided at the lower end of the filter element connecting seat 1. The filter element pressure holding assembly 6 is located at the lower end of the sealing mounting seat 5. A limiting ring 8 is provided at the lower end of the filter element pressure holding assembly 6. A limiting groove 9 is opened at the front end of the limiting ring 8. A backwash rotation knob 7 is rotatably installed inside the limiting ring 8. A limiting protrusion 10 is integrally provided on the side of the backwash rotation knob 7. The limiting protrusion 10 is located in the limiting groove 9.

[0031] In the above technical solution, the filter element pressure holding assembly 6 is connected to the water circuit through the first pipe connector 3 and the second pipe connector 4 at both ends of the filter element connector 1. After a period of use, the backwash rotation knob 7 at the lower end is rotated to move the limiting protrusion 10 from one end to the other end of the limiting slot 9, thereby changing the filtration direction of the filter element pressure holding assembly 6. After a period of use, the filtered material can be flushed out, thus rinsing the filter element pressure holding assembly 6.

[0032] like Figure 1 , Figures 4 to 8As shown, the filter element pressure-holding assembly 6 includes: a pressure-holding upper shell 601, a sealing connecting ring 602, a connecting channel 603, a filter element pressure-holding outer shell 606, a second connecting pipe port 613, and a fixing flange 614; the sealing connecting ring 602 is connected to the lower end of the sealing mounting base 5, the pressure-holding upper shell 601 is integrally provided at the lower end of the sealing connecting ring 602, the filter element pressure-holding outer shell 606 is integrally provided at the lower end of the pressure-holding upper shell 601, and the fixing flange 614 is integrally provided on the inner wall of the upper end of the pressure-holding upper shell 601; the fixing flange 614 has a plurality of second connecting pipe ports 613, half of which are integrally connected to the connecting channel 603, the upper end of the connecting channel 603 is integrally provided with an upper channel converging cavity 604, and the side of the upper channel converging cavity 604 is integrally provided with a first connecting channel. Pipeline 605, the first connecting pipe 605 is fixedly connected to the inner end of the first pipe connector 3, the lower end of the fixed flange 614 is rotatably mounted with a filter element upper rotating plate 607, the upper end of the filter element upper rotating plate 607 is integrally provided with a plurality of filter element pipe sealing ports 609, the lower end of the filter element pipe sealing ports 609 is connected to a filter element pipe 612, the lower end of the filter element upper rotating plate 607 is integrally provided with a sealed filter element inner shell 608; the lower end of the sealed filter element inner shell 608 is provided with an inner shell mounting base 611, the lower end of the inner shell mounting base 611 is fixedly connected with a knob connecting seat 610, the filter element pipe sealing ports 609 correspond to the second connecting pipe ports 613, the sealing connecting ring 602 communicates with the inside of the filter element connecting seat 1, the knob connecting seat 610 is rotatably sealed to the lower end of the filter element pressure holding shell 606 and is fixedly connected to the backflushing rotating knob 7.

[0033] In the above technical solution, by rotating the back-jet rotary knob 7, the knob connecting seat 610 at the lower end of the filter element pressure holding assembly 6 is driven, thereby driving the upper sealing filter element inner shell 608 to rotate through the inner shell mounting base 611. This allows the upper filter element rotating plate 607 to rotate, causing the filter element pipe sealing port 609 to alternate with the upper connecting channel 603 and the second connecting pipe port 613. This causes the filter element pipe 612, which originally entered the upper channel gathering chamber 604 from the first connecting pipe 605 and entered the lower end from the upper connecting channel 603, to flow out of the upper second connecting pipe port 613 through the other part of the filter element pipe 612 and then enter the filter element connecting seat 1 shell from the sealing mounting seat 5 at the outer end of the upper connecting channel 603. The water flow from the second pipe connector 4 outside the upper channel gathering chamber 604 and the first connecting pipe 605 is switched.

[0034] After the replacement, the filter element pipe 612 corresponding to the upper channel 603 and the filter element pipe 612 corresponding to the second connecting pipe port 613 are switched, so that the material accumulated on the filter element pipe 612 is flushed out in reverse. After rinsing one end for a period of time, it can be used again until the next reverse rinsing.

[0035] The working principle of this backwash filter element:

[0036] This solution connects the filter element pressure holding assembly 6 to the water circuit via the first pipe connector 3 and the second pipe connector 4 at both ends of the filter element connector 1. After a period of use, the backwash knob 7 at the lower end is rotated to move the limiting protrusion 10 from one end to the other end of the limiting slot 9, thereby changing the filtration direction of the filter element pressure holding assembly 6. This allows the filtered material to be flushed out after a period of use, thus rinsing the filter element pressure holding assembly 6.

[0037] Specifically, by rotating the back-jet knob 7, the knob connecting seat 610 at the lower end of the filter element pressure holding assembly 6 is driven, which in turn drives the upper sealed filter element inner shell 608 to rotate through the inner shell mounting base 611. This causes the upper filter element rotating plate 607 to rotate, causing the filter element pipe sealing port 609 to alternate with the upper connecting channel 603 and the second connecting pipe port 613. This causes the filter element pipe 612, which originally entered the upper channel gathering chamber 604 from the first connecting pipe 605 and entered the lower end from the upper connecting channel 603, to flow out of the upper second connecting pipe port 613 through the other part of the filter element pipe 612 and then enter the filter element connecting seat 1 shell from the sealing mounting seat 5 at the outer end of the upper connecting channel 603. The water flow from the second pipe connector 4 outside the upper channel gathering chamber 604 and the first connecting pipe 605 is switched.

[0038] After the replacement, the filter element pipe 612 corresponding to the upper channel 603 and the filter element pipe 612 corresponding to the second connecting pipe port 613 are switched, so that the material accumulated on the filter element pipe 612 is flushed out in reverse. After rinsing one end for a period of time, it can be used again until the next reverse rinsing.

[0039] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A backwash filter element, comprising a filter element connector (1) and a filter element pressure-maintaining assembly (6), characterized in that: The filter element connector (1) is fixedly installed with a connector mounting back plate (2) at its rear end. A first pipe connector (3) is fixedly installed at one end of the filter element connector (1), and a second pipe connector (4) is fixedly installed at the other end of the filter element connector (1). A sealing mounting base (5) is integrally provided at the lower end of the filter element connector (1), and the filter element pressure holding assembly (6) is provided at the lower end of the sealing mounting base (5).

2. The backwash filter element according to claim 1, characterized in that: The filter element pressure holding assembly (6) is provided with a limiting ring (8) at its lower end, and a limiting groove (9) is provided at the front end of the limiting ring (8).

3. The backwash filter element according to claim 2, characterized in that: A recoil rotation knob (7) is rotatably installed inside the limiting ring (8). A limiting protrusion (10) is integrally provided on the side of the recoil rotation knob (7). The limiting protrusion (10) is located in the limiting groove (9).

4. The backwash filter element according to claim 3, characterized in that: The filter element pressure holding assembly (6) includes: a pressure holding upper shell (601), a sealing connection ring (602), a connection upper channel (603), a filter element pressure holding outer shell (606), a second connection pipe port (613), and a fixed flange (614); The sealing ring (602) is connected to the lower end of the sealing mounting base (5). The lower end of the sealing ring (602) is integrally provided with a pressure-holding upper shell (601). The lower end of the pressure-holding upper shell (601) is integrally provided with a filter element pressure-holding outer shell (606). The upper inner wall of the pressure-holding upper shell (601) is integrally provided with a fixing flange (614). The fixed flange (614) is provided with a number of second connection pipe ports (613), and half of the second connection pipe ports (613) are integrally connected with a connection pipe (603).

5. The backwash filter element according to claim 4, characterized in that: The upper end of the connecting channel (603) is integrally provided with an upper channel converging cavity (604), and the side of the upper channel converging cavity (604) is integrally provided with a first connecting pipe (605).

6. The backwash filter element according to claim 5, characterized in that: The first connecting pipe (605) is fixedly connected to the inner end of the first pipe connector (3).

7. The backwash filter element according to claim 6, characterized in that: The fixed flange (614) is rotatably mounted with a filter element upper rotating plate (607) at its lower end. The upper end of the filter element upper rotating plate (607) is integrally provided with a plurality of filter element pipe sealing ports (609). The lower end of the filter element pipe sealing ports (609) is connected to a filter element pipe (612). The lower end of the filter element upper rotating plate (607) is integrally provided with a sealed filter element inner shell (608). The inner shell of the sealed filter element (608) is provided with an inner shell mounting base (611) at the lower end, and a knob connecting seat (610) is fixedly connected to the lower end of the inner shell mounting base (611).

8. The backwash filter element according to claim 7, characterized in that: The filter element pipe sealing port (609) corresponds to the second connecting pipe port (613), the sealing connecting ring (602) is connected to the inside of the filter element connecting seat (1), and the knob connecting seat (610) is rotatably sealed to the lower end of the filter element pressure holding shell (606) and fixedly connected to the back-recoil rotating knob (7).

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