Y-shaped filter with filter part convenient to disassemble and replace

Abstract

The utility model belongs to the technical field of filters, and discloses a Y-shaped filter with a filter part convenient to disassemble and replace, which comprises a Y-shaped pipe, a filter screen is placed in the Y-shaped pipe, a sealing cover is mounted at the bottom end of the filter screen, a movable plug is movably connected to the middle of the sealing cover, a pull ring is fixedly connected to one side, far away from the filter screen, of the movable plug, and filter holes are uniformly formed in the filter screen. Through the cooperation of the sealing cover, the movable plug, the pull ring, the spring, the filtering hole and other structures, the device facilitates the disassembly of the filtering piece, the hexagonal block is clamped through the wrench, the sealing cover is rotated and taken out by holding the sealing cover, the filtering hole can be hooked through the clamping column, and the sealing column drives the clamping column to move outwards, so that the clamping column can pull the filtering net through the filtering hole; after the filter screen is completely taken out from the inside of the Y-shaped pipe, a hexagonal block is held by a hand, a pull ring is pulled, a movable plug pulls a spring to extend, negative pressure is generated in a sealed cavity, a clamping column can be adsorbed to contract, and therefore a filter hole can be taken down to be cleaned and replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of filters, in particular to a Y-type filter which is convenient for dismantling and replacing filter elements. Background Art

[0002] Y-type filter is an indispensable filtering device for the pipeline system of conveying medium. Y-type filter is usually installed at the inlet end of pressure reducing valve, pressure relief valve or other equipment to remove impurities in the medium to protect the normal use of valves and equipment. Y-type filter has the characteristics of advanced structure, small resistance and convenient sewage discharge. Y-type filter is suitable for water, oil and gas.

[0003] For example, the patent with publication number CN207169204U relates to a Y-type filter, including a housing and a cylindrical filter element. The housing is composed of an inlet section, a filter section and an outlet section arranged in a Y shape. The cylindrical filter element is installed in the filter section. An annular limiting portion is circumferentially arranged along the inner circumference of the filter section. The filter section is provided with a cylindrical filter element installation port connected to the outside and an end cover for closing the cylindrical filter element installation port. When the end cover closes the cylindrical filter element installation port, the cylindrical filter element is axially pressed against the end cover and the annular limiting portion. A first sealing structure is provided between the end cover and the cylindrical filter element, and a second sealing structure is provided between the annular limiting portion and the cylindrical filter element. By adopting the above scheme, the utility model provides a Y-type filter that ensures that the fluid is completely filtered.

[0004] After being used for a period of time, the Y-type filter in the prior art needs to be disassembled for cleaning or replacement. During disassembly, since the filter is arranged inside the main pipe, after the sealing cover is unscrewed, the filter needs to be picked out by hand for replacement. However, a large amount of impurity particles are often attached to the filter. When the filter is picked out, there is often a potential safety risk to the operator's hands. A Y-type filter that is easy to remove and replace the filter is proposed to solve the above problem. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a Y-type filter which is easy to dismantle and replace the filter element.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a Y-type filter which is easy to remove and replace the filter element, comprising a Y-shaped tube, a filter screen is placed inside the Y-shaped tube, a sealing cover is installed at the bottom end of the filter screen, a movable plug is movably connected to the middle of the sealing cover, a pull ring is fixedly connected to the side of the movable plug away from the filter screen, filter holes are evenly opened on the filter screen, a spring is fixedly connected to the side of the movable plug close to the filter screen, and a card column is movably connected to the annular array on the sealing cover.

[0007] Preferably, the sealing cover comprises a sealing column, a limiting tube and a hexagonal block, the limiting tube is provided in an annular array on the sealing column, and a hexagonal block is fixedly connected to one side of the sealing column away from the filter screen.

[0008] Preferably, a sealing cavity is provided inside the sealing column, and the limiting tube is communicated with the sealing cavity.

[0009] Preferably, the outer side of the sealing column is sealed and connected to the Y-shaped pipe thread, and the filter hole is a diamond-shaped mesh opening.

[0010] Preferably, the spring is located inside the sealing cavity, and one end of the spring away from the movable plug is fixedly connected to the sealing column.

[0011] Preferably, the cross section of the movable plug is I-shaped, and the outer side of the movable plug is sealed and movably connected to the middle of the hexagonal block.

[0012] Preferably, the sealing column is located inside the bottom end of the filter screen, and the outer end of the clamping column is clamped in the filter hole.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model makes it easy to disassemble the filter element by coordinating the structures of the sealing cover, the movable plug, the pull ring, the spring and the filter hole. The sealing cover is rotated by engaging the hexagonal block with a wrench, and the sealing cover is taken out by holding the sealing cover. The filter hole can be hooked by the clamping column, and the sealing column drives the clamping column to move outward, so that the clamping column can pull the filter screen through the filter hole. When the filter screen is completely taken out from the inside of the Y-shaped tube, the hexagonal block is held and the pull ring is pulled, so that the movable plug pulls the spring to extend, so that negative pressure is generated in the sealing cavity, and the clamping column can be adsorbed and contracted. The clamping column is not clamped with the filter hole, so the filter hole can be removed for cleaning and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front view of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the front section of the utility model;

[0017] Figure 3 For this utility model Figure 2 A magnified schematic diagram of point A;

[0018] Figure 4 This is a disassembly diagram of the utility model.

[0019] In the figure: 1. Y-shaped tube; 2. filter screen; 3. sealing cover; 301. sealing column; 302. limit tube; 303. hexagonal block; 4. movable plug; 5. pull ring; 6. spring; 7. filter hole; 8. clamping column. DETAILED DESCRIPTION

[0020] 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.

[0021] like Figures 1 to 4 As shown, the utility model provides a Y-type filter for easy replacement of filter elements, including a Y-shaped tube 1, a filter screen 2 is placed inside the Y-shaped tube 1, a sealing cover 3 is installed at the bottom end of the filter screen 2, a movable plug 4 is movably connected to the middle of the sealing cover 3, a pull ring 5 is fixedly connected to the side of the movable plug 4 away from the filter screen 2, filter holes 7 are evenly opened on the filter screen 2, a spring 6 is fixedly connected to the side of the movable plug 4 close to the filter screen 2, and a clamping column 8 is movably connected to the sealing cover 3 in an annular array;

[0022] The sealing cover 3 is rotated by engaging the wrench, and the sealing cover 3 is taken out by holding it. The filter hole 7 can be hooked by the clamping column 8, and the sealing cover 3 drives the clamping column 8 to move outward, so that the clamping column 8 can pull the filter screen 2 through the filter hole 7. When the filter screen 2 is completely taken out from the inside of the Y-shaped tube 1, the pull ring 5 is pulled to make the movable plug 4 pull the spring 6 to extend, so that negative pressure is generated in the sealing cavity, which can adsorb the clamping column 8 and cause it to shrink. The clamping column 8 is not clamped with the filter hole 7, so that the filter hole 7 can be removed for cleaning and replacement.

[0023] like Figures 1 to 4 As shown, the sealing cover 3 includes a sealing column 301, a limiting tube 302 and a hexagonal block 303. The sealing column 301 is provided with a limiting tube 302 in an annular array, and the sealing column 301 is fixedly connected with a hexagonal block 303 on a side away from the filter screen 2; a sealing cavity is arranged inside the sealing column 301, the limiting tube 302 is communicated with the sealing cavity, the outer side of the sealing column 301 is threadedly sealed with the Y-shaped tube 1, the filter hole 7 is a diamond mesh port, the spring 6 is located inside the sealing cavity, and the end of the spring 6 away from the movable plug 4 is fixedly connected to the sealing column 301; the cross-section of the movable plug 4 is I-shaped, the outer side of the movable plug 4 is sealed and movably connected in the middle of the hexagonal block 303, the sealing column 301 is located inside the bottom end of the filter screen 2, and the outer end of the clamping column 8 is clamped in the filter hole 7.

[0024] The above scheme is adopted: the hexagonal block 303 is engaged with a wrench to rotate the sealing cover 3, and the sealing cover 3 is taken out by holding it, and the filter hole 7 can be hooked by the clamping column 8, and the sealing column 301 drives the clamping column 8 to move outward, so that the clamping column 8 can pull the filter screen 2 through the filter hole 7. When the filter screen 2 is completely taken out from the inside of the Y-shaped tube 1, the hexagonal block 303 is held and the pull ring 5 is pulled, so that the movable plug 4 pulls the spring 6 to extend, so that negative pressure is generated in the sealing cavity, which can adsorb the clamping column 8 to cause it to shrink, and the clamping column 8 does not pass through the filter 2. The filter hole 7 is locked, thereby completing the disassembly of the filter hole 7. The limiting tube 302 can be used to limit the support of the clamping column 8. The pulling force of the spring 6 can make the sealing cavity have a large air pressure, which can squeeze the clamping column 8, so that the clamping column 8 extends out of the limiting tube 302 and engages with the filter hole 7. Therefore, when the sealing cover 3 is taken out, the filter screen 2 can be taken out together. The limiting tube 302 is set on the side of the sealing column 301, which can effectively avoid the influence of water pressure and impurities, so that the device can easily take out the filter screen 2.

[0025] The working principle and use process of this utility model:

[0026] First, the operator engages the hexagonal block 303 with a wrench, rotates the sealing cover 3, and takes it out by holding the sealing cover 3. The filter hole 7 can be hooked by the clamping column 8, and the sealing column 301 drives the clamping column 8 to move outward, so that the clamping column 8 can pull the filter screen 2 through the filter hole 7. When the filter screen 2 is completely taken out from the inside of the Y-shaped tube 1, the operator holds the hexagonal block 303 and pulls the pull ring 5, so that the movable plug 4 pulls the spring 6 to extend, so that negative pressure is generated in the sealing cavity, which can adsorb the clamping column 8 and cause it to shrink, and the clamping column 8 is not stuck with the filter hole 7, thereby completing the disassembly of the filter hole 7.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A Y-type filter for easy replacement of filter elements, comprising a Y-shaped tube (1), characterized in that: A filter screen (2) is placed inside the Y-shaped tube (1), a sealing cover (3) is installed at the bottom end of the filter screen (2), a movable plug (4) is movably connected to the middle of the sealing cover (3), a pull ring (5) is fixedly connected to the side of the movable plug (4) away from the filter screen (2), filter holes (7) are evenly arranged on the filter screen (2), a spring (6) is fixedly connected to the side of the movable plug (4) close to the filter screen (2), and a clamping column (8) is movably connected to the sealing cover (3) in an annular array.

2. The Y-type filter for easy removal and replacement of filter elements according to claim 1, characterized in that: The sealing cover (3) comprises a sealing column (301), a limiting tube (302) and a hexagonal block (303); the limiting tube (302) is provided in an annular array on the sealing column (301); and the hexagonal block (303) is fixedly connected to one side of the sealing column (301) away from the filter screen (2).

3. The Y-type filter for easy removal and replacement of filter elements according to claim 2, characterized in that: A sealing cavity is provided inside the sealing column (301), and the limiting tube (302) is in communication with the sealing cavity.

4. The Y-type filter for easy removal and replacement of filter elements according to claim 2, characterized in that: The outer side of the sealing column (301) is threadedly sealed to the Y-shaped tube (1), and the filtering hole (7) is a diamond-shaped mesh opening.

5. The Y-type filter for easy removal and replacement of filter elements according to claim 3, characterized in that: The spring (6) is located inside the sealing cavity, and one end of the spring (6) away from the movable plug (4) is fixedly connected to the sealing column (301).

6. The Y-type filter for easy removal and replacement of filter elements according to claim 2, characterized in that: The cross section of the movable plug (4) is an I-shape, and the outer side of the movable plug (4) is sealed and movably connected to the middle part of the hexagonal block (303).

7. The Y-type filter for easy removal and replacement of filter elements according to claim 2, characterized in that: The sealing column (301) is located inside the bottom end of the filter screen (2), and the outer end of the clamping column (8) is clamped in the filter hole (7).

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