Filter with detachable filter element

Abstract

The utility model belongs to the technical field of filters, and particularly relates to a filter with a detachable filter element, which comprises a mounting pipe, a water inlet delivery pipe is arranged on the side wall of the mounting pipe, a drain pipe is arranged at the bottom of the mounting pipe, and one end of the water inlet delivery pipe extends into the mounting pipe and is provided with an arc part. A filter element is arranged above the supporting ring, a sealing cover is arranged at the top end of the mounting pipe, the water inlet conveying pipe is connected with a backwashing water outlet pipe, and the water drainage pipe is connected with a backwashing water inlet pipe; according to the utility model, the backwashing water inlet pipe is pressurized and flushed, high-pressure water flow enters the mounting pipe through the drainage pipe, and impurities on the inner wall of the filter element are flushed to the water inlet conveying pipe by water pressure and are discharged outwards through the backwashing water outlet pipe, so that the impurities in the filter element can be quickly flushed out, and the purpose of cleaning the filter element is achieved; therefore, the filter element does not need to be cleaned by detaching the sealing structure every time, and the purpose of conveniently cleaning the filter element is achieved.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a filter with a removable filter element. Background Technology

[0002] A filter is an indispensable device in pipelines that transport media. When the filter is working, the water to be filtered enters through the inlet, flows through the filter screen, and enters the pipeline required by the user through the outlet for process circulation. Particulate impurities in the water are trapped inside the filter screen.

[0003] Existing filters mainly consist of a housing, connecting pipes, and an internal filter element. Typically, a sealing structure is connected to the filter housing. Cleaning the internal filter element involves opening this sealing structure, removing the filter element, and then cleaning or replacing it to achieve the purpose of periodic filter cleaning. However, in practical use, because the housing's sealing structure is secured with multiple bolts, each time impurities are removed from the filter element, the sealing structure must be disassembled. This makes the filter element removal process complex, time-consuming, and labor-intensive, which is inconvenient for operation. Utility Model Content

[0004] This invention proposes a filter with a detachable filter element to solve the problem that the existing filter housing is fixed by multiple bolts, making the process of removing the filter element quite complicated.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A filter with a detachable filter element includes an installation tube, an inlet water delivery pipe provided on the side wall of the installation tube, a drain pipe provided at the bottom of the installation tube, one end of the inlet water delivery pipe extending into the interior of the installation tube and having a bend, a support ring fixed to the end face of the bend, a filter element provided above the support ring, a sealing cap provided at the top of the installation tube, a backwash outlet water pipe connected to the inlet water delivery pipe, a backwash inlet water pipe connected to the drain pipe, and both the backwash outlet water pipe and the backwash inlet water pipe are provided with auxiliary valves.

[0007] Preferably, a connecting plate is provided between the sealing cap and the mounting tube, an extension tube is connected to the bottom of the connecting plate, a connecting tube is fixed to the end of the extension tube, and the connecting tube is threadedly connected to the mounting tube.

[0008] Preferably, a fastening bolt is provided between the sealing cover and the connecting plate, a first sealing ring is also provided between the sealing cover and the connecting plate, and a second sealing ring is provided between the extension tube and the installation tube.

[0009] Preferably, a top cover is fixed to the top of the filter element, a support ring is fixed to the bottom of the filter element, a threaded hole is opened in the middle of the top cover, a screw is connected in the threaded hole, and the bottom end of the screw extends downward and is threadedly connected to the connecting plate.

[0010] Preferably, the ends of the backwash inlet pipe, backwash outlet pipe, inlet water delivery pipe, and drain pipe are all equipped with flanges, and the inlet water delivery pipe and drain pipe are equipped with main valves.

[0011] Preferably, the bottom end of the mounting pipe is fixed with a base, the base has a hollow structure inside, and the drain pipe is threadedly connected to the base.

[0012] In the above technical solution, the technical effects and advantages provided by this utility model are as follows: When the inlet water supply pipe is connected to the backwash outlet water pipe and the drain pipe is connected to the backwash inlet water pipe, during the periodic cleaning of the filter element, by pressurizing the backwash inlet water pipe, the high-pressure water flow enters the installation pipe through the drain pipe. The water pressure washes the impurities on the inner wall of the filter element down to the inlet water supply pipe and discharges them outward through the backwash outlet water pipe. This facilitates the rapid flushing out of the impurities in the filter element, thereby achieving the purpose of cleaning the filter element. As a result, it is not necessary to clean the filter element by disassembling the sealing structure every time, thus achieving the purpose of convenient cleaning of the filter element. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a diagram showing the state of the sealing cap of this utility model after it has been disassembled;

[0016] Figure 3 This is a schematic diagram of the internal structure of the mounting tube of this utility model;

[0017] Figure 4 This is a split view of the water inlet delivery pipe and filter element of this utility model.

[0018] In the diagram: 1. Sealing cap; 2. Connecting disc; 3. Fastening bolt; 4. Mounting pipe; 5. Water inlet pipe; 6. Base; 7. Drain pipe; 8. Main valve; 9. Flange; 10. Backwash inlet pipe; 101. Secondary valve; 11. First sealing ring; 12. Connecting pipe; 13. Extension pipe; 14. Second sealing ring; 15. Filter element; 151. Top cover; 152. Support ring; 153. Screw; 16. Backwash outlet pipe; 17. Support ring; 171. Connecting plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1-4 As shown, a filter with a detachable filter element includes an installation pipe 4, an inlet water delivery pipe 5 is provided on the side wall of the installation pipe 4, a drain pipe 7 is provided at the bottom of the installation pipe 4, one end of the inlet water delivery pipe 5 extends into the interior of the installation pipe 4 and is provided with a bend, a support ring 17 is fixed to the end face of the bend, a filter element 15 is provided above the support ring 17, a sealing cap 1 is provided at the top of the installation pipe 4, the inlet water delivery pipe 5 is connected to a backwash outlet water pipe 16, the drain pipe 7 is connected to a backwash inlet water pipe 10, and both the backwash outlet water pipe 16 and the backwash inlet water pipe 10 are provided with a secondary valve 101.

[0021] The mounting pipe 4 is the outer shell structure of the filter. An external pipe with a high-pressure pump can be connected to the end of the backwash inlet pipe 10. The external high-pressure pump draws clean water into the mounting pipe 4. After the mounting pipe 4 is filled with water, the water flows into the filter element 15. During this process, the deposits (impurities) on the inner wall of the filter element 15 are washed off and then flow back to the inlet delivery pipe 5. At this time, the sewage flows into the backwash outlet pipe 16 and is discharged outward, so as to achieve the purpose of backwashing to clean the impurities inside the filter element 15.

[0022] During the process of removing and replacing filter element 15, filter element 15 can be removed from installation tube 4 by removing sealing cover 1 using a tool.

[0023] like Figure 1 and Figure 2As shown, a connecting plate 2 is provided between the sealing cap 1 and the mounting tube 4. An extension tube 13 is connected to the bottom of the connecting plate 2. A connecting tube 12 is fixed to the end of the extension tube 13. Before the connecting tube 12 is threadedly connected to the mounting tube 4, a second sealing ring 14 is fitted on the outside of the connecting tube 12. Then the connecting tube 12 is rotated. The outer wall of the connecting tube 12 is provided with external threads, and the inner wall of the mounting tube 4 is provided with internal threads. The mounting tube 4 and the connecting tube 12 are threadedly screwed together. The end of the extension tube 13 squeezes the second sealing ring 14, so that the top of the second sealing ring 14 is in close contact with the bottom surface of the extension tube 13, and the bottom of the second sealing ring 14 is in close contact with the top surface of the mounting tube 4, thereby improving the sealing performance between the extension tube 13 and the mounting tube 4.

[0024] During the installation of the sealing cover 1, the fastening bolt 3 connects the sealing cover 1 to the connecting plate 2. Before this, a first sealing ring 11 is placed between the sealing cover 1 and the connecting plate 2. The sealing cover 1 and the connecting plate 2 press the first sealing ring 11 to prevent water from overflowing from the gap between the sealing cover 1 and the connecting plate 2.

[0025] During the removal of filter element 15, the connecting plate 2, extension tube 13 and connecting tube 12 need to be removed from the mounting tube 4, thereby exposing the port at the top of the mounting tube 4 to the outside so that the user can remove filter element 15.

[0026] like Figures 1-4 As shown, a top cover 151 is fixed to the top of the filter element 15, and a support ring 152 is fixed to the bottom of the filter element 15. A threaded hole is opened in the middle of the top cover 151, and a screw 153 is connected in the threaded hole. During the installation of the filter element 15, the support ring 152 at the bottom of the filter element 15 is placed on the top of the support ring 17, and the screw 153 is screwed into the threaded hole in the middle of the top cover 151 and screwed downwards. The bottom end of the screw 153 is threadedly connected to the connecting plate 171, and the screw 153 is in a connected state with the support ring 17. At this time, the filter element 15 is stably placed on the support ring 17 and will not shake.

[0027] like Figures 1-3 As shown, flanges 9 are provided at the ends of the backwash inlet pipe 10, backwash outlet pipe 16, inlet water delivery pipe 5, and drain pipe 7. Main valves 8 are provided on the inlet water delivery pipe 5 and drain pipe 7. During the water filtration process, the main valves 8 of the inlet water delivery pipe 5 and drain pipe 7 need to be opened, and the auxiliary valves 101 of the backwash inlet pipe 10 and backwash outlet pipe 16 need to be closed. The water flows through the inlet water delivery pipe 5 into the filter element 15, and after being filtered by the filter element 15, it is discharged from the filter holes on the outside of the filter element 15 into the inner cavity of the installation pipe 4, and then discharged outward through the drain pipe 7.

[0028] like Figure 1 and Figure 3As shown, a base 6 is fixed to the bottom end of the mounting pipe 4. The base 6 has a hollow structure inside. The drain pipe 7 is threaded to the base 6. The base 6 and the mounting pipe 4 are fixed by welding. By rotating the drain pipe 7, the drain pipe 7 is separated from the base 6. At this time, the drain pipe 7 can be removed and the inside of the drain pipe 7 can be rinsed clean.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filter with a removable filter element, comprising an installation tube (4), characterized in that: The side wall of the installation pipe (4) is provided with a water inlet pipe (5), and the bottom of the installation pipe (4) is provided with a drain pipe (7). One end of the water inlet pipe (5) extends into the interior of the installation pipe (4) and is provided with a bend. A support ring (17) is fixed on the end face of the bend. A filter element (15) is provided above the support ring (17). A sealing cap (1) is provided at the top of the installation pipe (4). The water inlet pipe (5) is connected to a backwash outlet pipe (16), and the drain pipe (7) is connected to a backwash inlet pipe (10). Both the backwash outlet pipe (16) and the backwash inlet pipe (10) are provided with a secondary valve (101).

2. The filter with a detachable filter element according to claim 1, characterized in that: A connecting plate (2) is provided between the sealing cover (1) and the mounting tube (4). An extension tube (13) is connected to the bottom of the connecting plate (2). A connecting tube (12) is fixed to the end of the extension tube (13). The connecting tube (12) is threadedly connected to the mounting tube (4).

3. A filter with a detachable filter element according to claim 2, characterized in that: A fastening bolt (3) is provided between the sealing cover (1) and the connecting plate (2), a first sealing ring (11) is also provided between the sealing cover (1) and the connecting plate (2), and a second sealing ring (14) is provided between the extension tube (13) and the mounting tube (4).

4. A filter with a removable filter element according to claim 1, characterized in that: The top of the filter element (15) is fixed with a top cover (151), and the bottom of the filter element (15) is fixed with a support ring (152). The top cover (151) has a threaded hole in the middle, and a screw (153) is connected in the threaded hole. The bottom end of the screw (153) extends downward and is threadedly connected to the connecting plate (171).

5. A filter with a removable filter element according to claim 1, characterized in that: The ends of the backwash inlet pipe (10), backwash outlet pipe (16), inlet water delivery pipe (5) and drain pipe (7) are all equipped with flanges (9), and the inlet water delivery pipe (5) and drain pipe (7) are equipped with main valves (8).

6. A filter with a removable filter element according to claim 1, characterized in that: The bottom end of the mounting pipe (4) is fixed with a base (6), the base (6) has a hollow structure inside, and the drain pipe (7) is threadedly connected to the base (6).

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