Multi-filtering-unit type filter convenient to overhaul

Abstract

The utility model relates to the technical field of filters, in particular to a multi-filter-unit type filter convenient to overhaul, which comprises a filter shell, an overhaul port is arranged on the front side of the filter shell, an overhaul plate is arranged at the overhaul port, and two butt joint pieces used for connecting the overhaul plate are arranged on the rear side of the inner wall of the filter shell. The front ends of the two butt joint pieces are in threaded connection with internal thread pressing rotary knobs used for fixing the position of the overhaul plate, three U-shaped fixing groove plates are arranged on the rear side of the inner wall of the filter shell, and a primary-efficiency filter screen plate, a medium-efficiency filter screen plate and a high-efficiency filter screen plate are inserted into the three U-shaped fixing groove plates arranged from left to right correspondingly. According to the multi-filtering-unit type filter convenient to overhaul, the overhaul plate can be disassembled and assembled only by unscrewing or screwing the knob through the cooperation of the internal thread pressing knob and the butt joint piece, multiple clamping columns or bolts do not need to be disassembled repeatedly, the replacement or cleaning process of the filtering units is remarkably simplified, and the maintenance time is greatly shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter technical field, concretely is the multi -filtering unit type filter of convenient overhaul. BACKGROUND

[0002] A filter is a device used to remove impurities, particles or contaminants from fluids, widely used in the purification process of air, water, oil and other fluids. Through different physical or chemical methods, the filter can improve the quality and safety of the fluid, ensure the normal operation of the equipment and prolong the service life. According to the different filtering principles and structures, the filter can be divided into many types, among which the multi-stage filter is widely concerned because of its high filtering capacity and adaptability. The multi-stage filter is usually composed of multiple filtering units, each unit has different filtering accuracy and function, which can effectively capture different size and type of pollutants. This structure makes the multi-stage filter have stronger adaptability and higher filtering efficiency when dealing with complex fluids, and the filtering unit needs to be replaced or cleaned regularly during use.

[0003] The patent with publication number CN217887375U discloses a kind of high-efficiency filter convenient for overhaul, including shell, filter screen and rotating mechanism, the inside of the shell is provided with shell, and fixed plate is installed in the right side of shell, the upper side of fixed plate is connected with clamping column, the right side of filter screen is provided with clamping mechanism, and filter screen is located in the right side of shell, clamping mechanism is installed with filter plate in the inside, rotating mechanism is located in the upper side of shell;The utility model is provided with clamping column and filter screen, so that high-efficiency filter device can be clamped filter screen by clamping column, so as to stably filter, so that high-efficiency filter device is more stable to use, the setting of filter screen makes high-efficiency filter device have multiple filtering devices, filtering is more accurate, also guarantees the stability of high-efficiency filter device use, makes high-efficiency filter device more humanized, is better used.

[0004] However, the filter screen in the prior art needs multiple clamping columns to be clamped and fixed, so that the user must repeatedly disassemble multiple clamping columns when disassembling. In addition, each filter plate needs to be fixed by the corresponding clamping mechanism, and the clamping mechanism involves a complex linkage structure, so the user needs to repeatedly rotate the bolts of the clamping mechanism when disassembling the filter plate. Furthermore, the connecting part between the rotating plate of the rotating mechanism and the shell lacks a sealing structure, which has the risk of gas leakage. These design deficiencies make the filter inconvenient in daily maintenance and overhaul, reducing the user's experience. In view of this, we propose a multi-filtering unit type filter convenient for overhaul. This filter not only can improve the above-mentioned disassembly difficulty problem, but also can optimize the sealing structure, improve the overall performance and stability of the filter. SUMMARY

[0005] The utility model discloses a multi-filter unit type filter convenient to overhaul to solve the problem in the foregoing background art.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The utility model discloses a multi-filter unit type filter convenient to overhaul, including filter casing, filter casing is used as main body frame for containing filter unit and provides fluid passage, combine Figure 1 、 Figure 2 And Figure 3 As shown, the left side of the filter casing is provided with a fluid input pipe, which is used to introduce the fluid to be filtered into the interior of the filter casing. The right side of the filter casing is provided with a fluid output pipe, which is used to discharge the clean fluid after multi-stage filtration.

[0008] The front side of the filter casing is provided with an access hole, which provides an access channel for disassembling and assembling the filter unit. The access hole is provided with an access plate, which is used to close the access hole and fix the front end of the filter unit. The rear side of the inner wall of the filter casing is provided with two butt joints for connecting the access plate. The butt joints are used to position and fix the access plate. The front end of each butt joint is threadedly connected with an internal thread compression knob for fixing the position of the access plate. The internal thread compression knob can quickly fix the access plate by tightening operation. During maintenance, only the two internal thread compression knobs need to be disassembled, and then the access plate can be removed to replace or clean the three filter units.

[0009] The rear side of the inner wall of the filter casing is provided with three U-shaped fixed groove plates arranged equidistantly left and right. The U-shaped fixed groove plates are used to fix the rear end of the primary efficiency filter screen, the medium efficiency filter screen and the high efficiency filter screen. The three U-shaped fixed groove plates arranged from left to right are respectively inserted with the primary efficiency filter screen, the medium efficiency filter screen and the high efficiency filter screen. The primary efficiency filter screen is used to intercept large particle impurities. The medium efficiency filter screen is used to filter medium particle pollutants. The high efficiency filter screen is used to fine filter small particles.

[0010] The rear side of the access plate is provided with three U-shaped movable groove plates respectively used to fix the position of the primary efficiency filter screen, the medium efficiency filter screen and the high efficiency filter screen. The filter screen plates are fixed in the corresponding U-shaped fixed groove plates and U-shaped movable groove plates.

[0011] Preferably, as shown in Figure 2 And Figure 3 The front side of the inner wall of the access hole is provided with a positioning groove, which is used to limit the installation position of the access plate. The rear side of the inner wall of the positioning groove is bonded with a frame-shaped sealing gasket.

[0012] The front side of the maintenance plate is provided with a positioning plate, the positioning plate is located in a positioning groove, the positioning plate is embedded in the positioning groove to ensure that the maintenance plate is installed in place, and the rear side of the positioning plate is tightly attached to the front side of the frame-shaped sealing gasket, which is used for sealing the gap between the maintenance opening and the positioning plate.

[0013] The front side of the positioning plate is provided with a positioning plate, the positioning plate is located in a positioning groove, the positioning plate is embedded in the positioning groove to ensure that the maintenance plate is installed in place, and the rear side of the positioning plate is tightly attached to the front side of the frame-shaped sealing gasket, which is used for sealing the gap between the maintenance opening and the positioning plate.

[0014] Preferably, in combination with the drawings shown in Figure 3 、 Figure 4 and Figure 5 The abutting piece comprises a fixed rod fixedly connected to the rear side of the inner wall of the filter housing, the fixed rod is connected to the inner wall of the filter housing through bolts or welding, and the fixed rod provides a support base for the abutting piece.

[0015] The front end of the fixed rod is bonded with a rubber ring, the front side of the rubber ring is tightly attached to the rear side of the maintenance plate, and the rubber ring is used to ensure the sealing between the maintenance plate and the fixed rod.

[0016] The front end of the abutting rod is provided with a threaded rod, the threaded rod is threadedly connected with an internal thread compression knob, the rear side of the internal thread compression knob is abutted against the front side of the positioning plate, and the internal thread compression knob is tightened to compress the frame-shaped sealing gasket and the rubber ring to ensure sealing.

[0017] Preferably, in combination with the drawings shown in Figure 3 and Figure 5 The three U-shaped movable groove plates are arranged in front of and behind the three U-shaped fixed groove plates respectively, the symmetrically arranged U-shaped groove plates form a stable clamping structure, the two ends of the U-shaped fixed groove plate are bonded with a U-shaped sealing gasket, the front sides of the two U-shaped sealing gaskets are tightly attached to the two ends of the corresponding U-shaped movable groove plate respectively, the U-shaped sealing gasket is used to seal the connecting part between the U-shaped fixed groove plate and the U-shaped movable groove plate, and forced fluid flows through the filter screen plate to improve the filtering efficiency.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] 1、The multi-filtering unit type filter convenient to maintain, through the cooperation of the internal thread compression knob and the abutting piece, the disassembly and assembly of the maintenance plate can be completed by loosening or tightening the knob, multiple clamping columns or bolts do not need to be repeatedly disassembled, the replacement or cleaning process of the filtering unit is significantly simplified, and the maintenance time is greatly shortened.

[0020] 2、The multi-filtering unit type filter convenient to overhaul, the multiple sealing design of the frame-shaped sealing gasket, the U-shaped sealing gasket and the rubber ring effectively prevents fluid from leaking from the access hole, the U-shaped groove plate connecting portion and the gap between the butt joint parts, ensures that there is no bypass during the filtering process, and improves filtering precision and safety.

[0021] 3、The multi-filtering unit type filter convenient to overhaul, the U-shaped fixed groove plate and the U-shaped movable groove plate symmetrically clamping the filter screen plate realize modular installation of the primary efficiency filter unit, the medium efficiency filter unit and the high efficiency filter unit, and users can replace different filter layers according to requirements.

[0022] 4、The multi-filtering unit type filter convenient to overhaul, the cooperation of the positioning groove and the positioning plate ensures that the installation position of the access plate is accurate, meanwhile, the guiding design of the butt joint rod and the mounting hole avoids deviation during dismounting, ensures that the filtering unit is fixed stably, and reduces the risk of sealing failure caused by misplacement. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole structure schematic view of the utility model;

[0024] Figure 2 It is a whole exploded structure schematic view of the utility model;

[0025] Figure 3 It is a cross-sectional structure schematic view of the filter shell in the utility model;

[0026] Figure 4 It is a structure enlarged schematic view of A in the utility model Figure 3

[0027] Figure 5 It is an access plate structure schematic view in the utility model;

[0028] In the drawing: 1, filter shell; 10, fluid input pipe; 11, fluid output pipe; 12, access hole; 13, positioning groove; 14, frame-shaped sealing gasket; 15, U-shaped fixed groove plate; 16, U-shaped sealing gasket; 2, primary efficiency filter screen plate; 3, medium efficiency filter screen plate; 4, high efficiency filter screen plate; 5, access plate; 50, U-shaped movable groove plate; 51, positioning plate; 510, handle; 52, mounting hole; 6, butt joint part; 60, fixed rod; 61, butt joint rod; 62, threaded rod; 63, rubber ring; 7, internally threaded compression knob. DETAILED DESCRIPTION

[0029] ​The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0030] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] Please refer to Figures 1-5 The present application provides a technical solution:

[0032] The multi-filter unit type filter convenient for maintenance comprises a filter shell 1, the filter shell 1 is used as a main frame to accommodate filter units and provide a fluid passage, and as shown in combination with Figure 1 、 Figure 2 and Figure 3 , a fluid input pipe 10 is arranged on the left side of the filter shell 1, the fluid input pipe 10 is used for guiding the fluid to be filtered into the inside of the filter shell 1, and a fluid output pipe 11 is arranged on the right side of the filter shell 1, the fluid output pipe 11 is used for discharging clean fluid filtered by multiple stages;

[0033] A maintenance opening 12 is formed in the front side of the filter shell 1, the maintenance opening 12 provides a maintenance passage to facilitate disassembly and assembly of the filter units, a maintenance plate 5 is arranged at the maintenance opening 12, the maintenance plate 5 is used for closing the maintenance opening 12 and fixing the front end of the filter units, two abutting pieces 6 for connecting the maintenance plate 5 are arranged on the rear side of the inner wall of the filter shell 1, the abutting pieces 6 are used for positioning and fixing the maintenance plate 5, an internal thread compression knob 7 for fixing the position of the maintenance plate 5 is threadedly connected to the front end of each of the two abutting pieces 6, the internal thread compression knob 7 compresses the maintenance plate 5 through a tightening operation to realize quick fixing, and during maintenance, only the two internal thread compression knobs 7 need to be disassembled, and then the maintenance plate 5 is removed to replace or clean the three filter units;

[0034] The rear side of the inner wall of the filter housing 1 is provided with three U-shaped fixed groove plates 15 arranged equidistantly left and right, which are used to fix the rear ends of the primary, medium and high efficiency filter screen plates. The three U-shaped fixed groove plates 15 are respectively inserted with the primary filter screen plate 2, the medium filter screen plate 3 and the high efficiency filter screen plate 4 arranged from left to right. The primary filter screen plate 2 is used to intercept large particle impurities, the medium filter screen plate 3 is used to filter medium particle pollutants, and the high efficiency filter screen plate 4 is used to finely filter small particles.

[0035] The rear side of the access plate 5 is provided with three U-shaped movable groove plates 50 respectively used to fix the positions of the primary filter screen plate 2, the medium filter screen plate 3 and the high efficiency filter screen plate 4. The grooves of the U-shaped fixed groove plates 15 and the U-shaped movable groove plates 50 are adapted to the shape and size of the primary filter screen plate 2, the medium filter screen plate 3 and the high efficiency filter screen plate 4. The filter screen plates are fixed in the corresponding U-shaped fixed groove plates 15 and U-shaped movable groove plates 50.

[0036] In this embodiment, combined with Figure 2 and Figure 3 , the front side of the inner wall of the access opening 12 is provided with a positioning groove 13 used to limit the installation position of the access plate 5. The rear side of the inner wall of the positioning groove 13 is bonded with a frame-shaped sealing gasket 14.

[0037] The front side of the access plate 5 is provided with a positioning plate 51 located in the positioning groove 13. The positioning plate 51 is embedded in the positioning groove 13 to ensure that the access plate 5 is installed in place. The rear side of the positioning plate 51 is tightly fitted with the front side of the frame-shaped sealing gasket 14. The frame-shaped sealing gasket 14 is used to seal the gap between the access opening 12 and the positioning plate 51.

[0038] The front side of the positioning plate 51 and the positions close to the left and right sides are each provided with a handle 510. The outer wall of the handle 510 is provided with anti-slip patterns. The handle 510 is convenient for users to exert force to disassemble and assemble the access plate 5.

[0039] Specifically, combined with Figure 3 , Figure 4 and Figure 5 , the docking piece 6 includes a fixed rod 60 fixedly connected to the rear side of the inner wall of the filter housing 1. The fixed rod 60 is connected or welded to the inner wall of the filter housing 1 by bolts. The fixed rod 60 provides a support base for the docking piece 6. The front end of the fixed rod 60 is provided with a docking rod 61 used to guide the installation direction of the access plate 5. The rear side of the access plate 5 is provided with an installation hole 52 through which the docking rod 61 passes. The installation hole 52 cooperates with the docking rod 61 to realize the positioning of the access plate 5.

[0040] The front end of the fixed rod 60 is bonded with a rubber ring 63. The front side of the rubber ring 63 is tightly fitted with the rear side of the access plate 5. The rubber ring 63 is used to ensure the sealing between the access plate 5 and the fixed rod 60.

[0041] The front end of the connecting rod 61 is provided with a threaded rod 62, which is threadedly connected with the internally threaded compression knob 7. The rear side of the internally threaded compression knob 7 abuts against the front side of the positioning plate 51. When the internally threaded compression knob 7 is tightened, the frame-shaped sealing gasket 14 and the rubber ring 63 are compressed to ensure sealing.

[0042] Further, as shown in Figs. 1 and 2, the three U-shaped movable slot plates 50 are arranged in front of and behind the three U-shaped fixed slot plates 15, respectively. The symmetrically arranged U-shaped slot plates form a stable clamping structure. The two ends of each U-shaped fixed slot plate 15 are bonded with a U-shaped sealing gasket 16. The front sides of the two U-shaped sealing gaskets 16 are tightly attached to the two ends of the corresponding U-shaped movable slot plate 50. The U-shaped sealing gasket 16 is used to seal the connection between the U-shaped fixed slot plate 15 and the U-shaped movable slot plate 50, so as to force the fluid to flow through the filter screen plate to improve the filtering efficiency. Figure 3 Figure 5 As shown in Figs. 1 and 2, the three U-shaped movable slot plates 50 are arranged in front of and behind the three U-shaped fixed slot plates 15, respectively. The symmetrically arranged U-shaped slot plates form a stable clamping structure. The two ends of each U-shaped fixed slot plate 15 are bonded with a U-shaped sealing gasket 16. The front sides of the two U-shaped sealing gaskets 16 are tightly attached to the two ends of the corresponding U-shaped movable slot plate 50. The U-shaped sealing gasket 16 is used to seal the connection between the U-shaped fixed slot plate 15 and the U-shaped movable slot plate 50, so as to force the fluid to flow through the filter screen plate to improve the filtering efficiency.

[0043] In use, when the user needs to maintain the filter housing 1, the two internally threaded compression knobs 7 are loosened first, so that the threaded rods 62 of the connecting pieces 6 are separated. At this time, the mounting holes 52 at the rear side of the maintenance plate 5 are disengaged from the connecting rods 61 of the connecting pieces 6. By applying force to the pull handle 510, the maintenance plate 5 is pulled outward, so that the positioning plate 51 at the front side of the maintenance plate 5 is disengaged from the positioning slot 13 of the filter housing 1. Then, the maintenance plate 5 and the U-shaped movable slot plate 50 can be removed from the maintenance opening 12 of the filter housing 1 as a whole. Then, the primary filter screen plate 2, the medium filter screen plate 3 and the high-efficiency filter screen plate 4 are pulled out from the three U-shaped fixed slot plates 15, respectively, for replacement or cleaning. When reassembling, the rear ends of the primary filter screen plate 2, the medium filter screen plate 3 and the high-efficiency filter screen plate 4 are inserted into the U-shaped fixed slot plates 15. Then, the positioning plate 51 of the maintenance plate 5 is aligned with the positioning slot 13 and is pushed in. The front ends of the primary filter screen plate 2, the medium filter screen plate 3 and the high-efficiency filter screen plate 4 are fixed in the three U-shaped movable slot plates 50 of the maintenance plate 5. The connecting rod 61 passes through the mounting hole 52 and the internally threaded compression knob 7 is tightened with the threaded rod 62. The frame-shaped sealing gasket 14 is compressed to seal the maintenance opening 12, and the rubber ring 63 is compressed to seal the connection between the fixed rod 60 and the maintenance plate 5. At the same time, the U-shaped sealing gaskets 16 at the two ends of the U-shaped fixed slot plate 15 are tightly attached to the U-shaped movable slot plate 50, so as to ensure that the fluid flows through the primary filter screen plate 2, the medium filter screen plate 3 and the high-efficiency filter screen plate 4 to complete multi-stage filtering. Finally, the clean fluid is discharged from the fluid output pipe 11.

[0044] ​The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. Filter of the type with multiple filtering units, easy to be serviced, comprising a filtering casing (1), characterized in that: The left side of the filter housing (1) is provided with a fluid input pipe (10), the right side of the filter housing (1) is provided with a fluid output pipe (11), the front side of the filter housing (1) is provided with an access hole (12), the access hole (12) is provided with an access plate (5), the rear side of the inner wall of the filter housing (1) is provided with two butt joints (6) for connecting the access plate (5), the front end of the two butt joints (6) is threadedly connected with an internal thread compression knob (7) for fixing the position of the access plate (5), the rear side of the inner wall of the filter housing (1) is provided with three U-shaped fixed groove plates (15) arranged equidistantly from left to right, the three U-shaped fixed groove plates (15) arranged from left to right are respectively inserted with a primary filter screen plate (2), a medium-efficiency filter screen plate (3) and a high-efficiency filter screen plate (4), the rear side of the access plate (5) is provided with three U-shaped movable groove plates (50) for fixing the positions of the primary filter screen plate (2), the medium-efficiency filter screen plate (3) and the high-efficiency filter screen plate (4) respectively.

2. The multi-filter element filter convenient for maintenance according to claim 1, characterized in that: The front side of the inner wall of the access hole (12) is provided with a positioning groove (13), and the rear side of the inner wall of the positioning groove (13) is bonded with a frame-shaped sealing gasket (14).

3. The multi-filter element filter convenient to overhaul according to claim 2, characterized in that: The front side of the access plate (5) is provided with a positioning plate (51), the positioning plate (51) is located in the positioning groove (13), and the rear side of the positioning plate (51) is tightly attached to the front side of the frame-shaped sealing gasket (14).

4. The multi-filter element filter convenient to overhaul according to claim 3, characterized in that: The front side of the positioning plate (51) and the positions close to the left and right sides are respectively provided with a handle (510), and the outer wall of the handle (510) is provided with an anti-skid pattern.

5. The multi-filter element type filter convenient for inspection of claim 3, wherein: The butt joint (6) comprises a fixed rod (60) fixedly connected to the rear side of the inner wall of the filter housing (1), the front end of the fixed rod (60) is provided with a butt rod (61), and the rear side of the access plate (5) is provided with a mounting hole (52) through which the butt rod (61) passes.

6. The multi-filter element filter convenient to overhaul according to claim 5, characterized in that: The front end of the fixed rod (60) is bonded with a rubber ring (63), and the front side of the rubber ring (63) is tightly attached to the rear side of the access plate (5).

7. The multi-filter element type filter convenient for inspection of claim 5, wherein: The front end of the butt rod (61) is provided with a threaded rod (62), the threaded rod (62) is threadedly connected with the internal thread compression knob (7), and the rear side of the internal thread compression knob (7) abuts against the front side of the positioning plate (51).

8. The multi-filter-element type filter convenient for inspection according to claim 1, characterized by: The three U-shaped movable groove plates (50) are arranged in front of and behind the three U-shaped fixed groove plates (15) respectively, the two ends of the U-shaped fixed groove plate (15) are bonded with a U-shaped sealing gasket (16), and the front sides of the two U-shaped sealing gaskets (16) are tightly attached to the two ends of the corresponding U-shaped movable groove plate (50) respectively.

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