Basket filter convenient for replacing filter screen

Abstract

The utility model discloses a basket filter with a filter screen convenient to replace, and relates to the technical field of basket filters. The cover plate is mounted at the top of the filter body; the filter cartridge assembly is arranged in the filter body; the fastening mechanism is connected to the upper end of the filter cartridge assembly in an abutting manner and is in threaded connection with the cover plate; the filter cartridge assembly comprises a lifting rod, a first filter cartridge and a second filter cartridge, the first filter cartridge and the second filter cartridge are connected through a plurality of connecting parts, the first filter cartridge is located in the second filter cartridge to facilitate double filtration, the lifting rod is connected between the first filter cartridge and the fastening mechanism, the filter cartridge assembly is limited in the filter body through the fastening mechanism, and it can be guaranteed that the filter cartridge assembly is stably installed; therefore, the filtering effect is improved; and the filter cartridge assembly can be disassembled by disassembling the fastening mechanism, and the process is easy and simple, so that the filter cartridge assembly is very convenient to replace.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of basket filters, in particular to a basket filter with filter screen convenient to replace. BACKGROUND

[0002] The basket filter is also called a blue filter, which is mainly used on oil or other liquid pipelines to filter sundries in the pipelines. A filter basket is arranged in the basket filter. In the prior art, the filter basket is usually fixed through a connecting piece and then placed in the filter, and the filter basket has a single-layer structure. After a period of use, impurity particles will block the basket holes, so the filter basket needs to be frequently disassembled and cleaned. However, since the filter basket is fixed with the connecting piece, the filter basket and the connecting piece need to be completely disassembled during cleaning, which causes complicated steps during replacement and disassembly. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the present application provides a basket filter with filter screen convenient to replace to solve the technical problem of complicated disassembly process of the filter basket.

[0004] To achieve the above object, the present application provides the following technical scheme.

[0005] A basket filter with filter screen convenient to replace comprises:

[0006] a filter body;

[0007] a cover plate installed on the top of the filter body;

[0008] a filter cartridge assembly arranged in the filter body;

[0009] a fastening mechanism connected to the upper end of the filter cartridge assembly, which is threadedly connected with the cover plate;

[0010] The filter cartridge assembly comprises a lifting rod and a first filter cartridge and a second filter cartridge connected through a plurality of connecting components, the first filter cartridge is located in the second filter cartridge to perform double filtration, and the lifting rod is connected between the first filter cartridge and the fastening mechanism.

[0011] Further, a first convex cover is arranged on the first filter cartridge, a second convex cover is arranged on the second filter cartridge, and the plurality of connecting components are connected between the first convex cover and the second convex cover.

[0012] Still further, the connecting components comprise:

[0013] an installation plate slidingly installed in a sliding groove of the second convex cover;

[0014] a pull rod perpendicularly connected with the installation plate, which extends out of the second convex cover;

[0015] A compression spring is sleeved on the pull rod and abuts between the mounting plate and the sliding groove.

[0016] A connecting rod connected with the mounting plate can be inserted into the slot of the first convex cover.

[0017] Further, one end of the pull rod is provided with a pull plate.

[0018] Further, a plurality of first filter holes are formed on the first filter cartridge, and a plurality of second filter holes are formed on the second filter cartridge, wherein the first filter holes have a larger diameter than the second filter holes.

[0019] Further, a convex ring is arranged in the filter body, and the second convex cover is arranged on the convex ring.

[0020] Further, an annular limiting groove is formed on the convex ring, a rubber ring is arranged in the limiting groove, the bottom of the second convex cover is provided with a positioning ring, and the positioning ring abuts on the rubber ring.

[0021] Further, the fastening mechanism comprises:

[0022] A rotating rod is threadedly connected with the cover plate.

[0023] A hand wheel is arranged on the top of the rotating rod.

[0024] A pressing plate is connected with the lower end of the rotating rod by a fastener, and the pressing plate abuts on the lifting rod.

[0025] Further, the fastener comprises a pair of symmetrical connecting plates arranged on the pressing plate, and the connecting plates are slidably connected with the annular groove of the rotating rod.

[0026] Further, the fastening mechanism further comprises a wing nut capable of locking the rotating rod on the cover plate.

[0027] From the above technical solution, the advantages of the present application are as follows:

[0028] 1. In the present application, the filter cartridge assembly is mainly composed of a first filter cartridge and a second filter cartridge, and the filter cartridge assembly can be installed in the filter body by the fastening mechanism, and when disassembled, the first filter cartridge and the second filter cartridge can be disassembled, which is more convenient and easier to clean.

[0029] 2. In the present application, the first filter cartridge and the second filter cartridge cooperate to double-filter the liquid, so that the filtering effect is better.

[0030] 3. In the present application, the filter cartridge assembly is tightly held against the convex ring by the fastening mechanism, which can ensure the firmness of the installation of the filter cartridge assembly, and the filter cartridge assembly will not be offset even in the case of sudden increase in liquid flow, thus being able to always maintain good effect of filtering impurities. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application and are incorporated herein for a purpose of explanations of the present application and are not intended as an undue limitation to the present application.

[0032] Figure 1 is a structural schematic view of the present application.

[0033] Figure 2 is a structural schematic view of the filter cartridge assembly of the present application.

[0034] Figure 3 is a partial enlarged view of A of Figure 2

[0035] Figure 4 is a partial enlarged view of B of Figure 2

[0036] Figure 5 is a perspective view of the first filter cartridge and the second filter cartridge of the present application.

[0037] Figure 6 is a partial enlarged view of C of Figure 1

[0038] Figure 7 is a partial enlarged view of D of Figure 6

[0039] Figure 8 is a partial enlarged view of E of Figure 6

[0040] BRIEF DESCRIPTION OF DRAWINGS1 - filter body; 11 - blowdown port; 12 - blowdown plug; 2 - cover plate; 21 - sealing groove; 3 - lifting ring bolt; 31 - nut; 4 - filter cartridge assembly; 41 - first filter cartridge; 411 - first filter hole; 42 - first convex cover; 421 - insertion slot; 43 - lifting rod; 44 - second filter cartridge; 441 - second filter hole; 45 - second convex cover; 451 - sliding slot; 452 - positioning ring; 461 - pull rod; 462 - pull plate; 463 - compression spring; 464 - mounting plate; 465 - connecting rod; 5 - convex ring; 51 - limiting groove; 52 - rubber ring; 6 - flow guide plate; 7 - fastening mechanism; 71 - rotating rod; 711 - threaded portion; 712 - ring groove; 72 - hand wheel; 73 - wing nut; 74 - pressure plate; 741 - recess; 75 - connecting plate; 76 - screw; 8 - sealing ring; 81 - first sealing lip; 82 - second sealing lip. ​​​​DETAILED DESCRIPTION

[0041] For the purpose of making the object, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the embodiments and drawings. Herein, the illustrative embodiments of the present application and the description thereof are used to explain the present application, but not as a limitation to the present application.

[0042] Reference Figures 1 to 8 As Figure 1 shown, the present embodiment provides a basket filter convenient for replacing filter screen, which comprises a filter body 1, a cover plate 2, a filter cartridge assembly 4 and a fastening mechanism 7, the filter body 1 is installed with a pipeline together for filtering the impurities of the liquid conveyed in the pipeline, the cover plate 2 is connected with the top of the filter body 1 through a plurality of hanger bolts 3 and locked through nuts 31, so that the cover plate 2 is installed stably, the cover plate 2 can close the top of the filter body 1 to restrict the filter cartridge assembly 4 in the filter body 1; a convex ring 5 is arranged in the filter body 1, the filter cartridge assembly 4 is supported on the convex ring 5; the fastening mechanism 7 can be connected with the upper end of the filter cartridge assembly 4 to make the filter cartridge assembly 4 resist on the convex ring 5, and in order to prevent the fastening mechanism 7 from loosening, the fastening mechanism 7 is threadedly connected with the cover plate 2; the filter cartridge assembly 4 comprises a first filter cartridge 41 and a second filter cartridge 44 connected through a plurality of connecting components, the first filter cartridge 41 is located in the second filter cartridge 44 to filter the impurities twice, a lifting rod 43 is connected with the first filter cartridge 41, and the fastening mechanism 7 resists on the lifting rod 43.

[0043] As Figure 2 and Figure 5 shown, the top of the first filter cartridge 41 is integrally connected with a first convex cover 42, the top of the second filter cartridge 44 is integrally connected with a second convex cover 45, and a plurality of connecting components are annularly connected between the first convex cover 42 and the second convex cover 45 to fix the first filter cartridge 41 and the second filter cartridge 44 together, and only the connecting components need to be operated to realize the disassembly and assembly of the first filter cartridge 41 and the second filter cartridge 44, so that the two are more convenient to assemble or disassemble.

[0044] As Figure 2 and Figure 6As shown, the connecting component comprises a mounting plate 464, a pull rod 461, a compression spring 463 and a connecting rod 465, the mounting plate 464 is slidingly mounted in the corresponding sliding groove 451 on the second convex cover 45, one end of the pull rod 461 extends outwardly to outside of the second convex cover 45, and the one end of the pull rod 461 is vertically connected to the end face of the mounting plate 464, the compression spring 463 is sleeved on the pull rod 461, and the compression spring 463 is contained in the sliding groove 451, one end of the compression spring 463 abuts against the mounting plate 464, and the other end abuts against an inner side wall of the sliding groove 451, the connecting rod 465 is fixedly connected with the mounting plate 464, the pull rod 461 and the connecting rod 465 are respectively connected to the two side faces of the mounting plate 464, and the front end of the connecting rod 465 can be inserted into the insertion slot 421 of the first convex cover 42, so that the first convex cover 42 and the second convex cover 45 are mounted together.

[0045] Preferably, a pull plate 462 is mounted at the end of the pull rod 461 away from the connecting rod 465, and the pull plate 462 is used for facilitating gripping when pulling the pull rod 461.

[0046] When the first filter cartridge 41 and the second filter cartridge 44 are disassembled, the pull plate 462 is first pulled outwardly, so that the pull rod 461 drives the mounting plate 464 and the connecting rod 465 to move into the sliding groove 451, and when the front end of the connecting rod 465 is separated from the insertion slot 421 and is retracted into the sliding groove 451, the first filter cartridge 41 can be dismounted from the second filter cartridge 44, and the mounting is similar, the pull plate 462 is first pulled outwardly, and when the connecting rod 465 is retracted into the sliding groove 451, the first filter cartridge 41 is placed into the second filter cartridge 44, at this time, the first convex cover 42 is placed on the second convex cover 45, and the positions of the insertion slot 421 and the sliding groove 451 correspond, the pull plate 462 is released, and the elastic action of the compression spring 463 drives the front end of the connecting rod 465 to be inserted into the insertion slot 421, so that the mounting of the first filter cartridge 41 and the second filter cartridge 44 is realized, and the whole operation process is simple and easy to understand and easy to operate.

[0047] As shown in the drawings, Figure 2 As shown, a plurality of first filter holes 411 are formed in the first filter cartridge 41, and a plurality of second filter holes 441 are formed in the second filter cartridge 44, the aperture of the first filter hole 411 is larger than that of the second filter hole 441, the first filter cartridge 41 is used for filtering larger particle impurities, the second filter cartridge 44 is used for filtering smaller particle impurities, and the two are combined to perform double filtration on the impurities in the liquid flowing in the pipeline, so that the effect of blocking impurities is better.

[0048] As shown in the drawings, Figure 3 and Figure 4As shown, the convex ring 5 is provided with an annular limiting groove 51, a rubber ring 52 is arranged in the limiting groove 51, the bottom of the second convex cover 45 is fixedly provided with a positioning ring 452, the positioning ring 452 is accommodated in the limiting groove 51, and under the abutting action of the fastening mechanism 7, the positioning ring 452 abuts on the rubber ring 52, so that the installation between the filter cartridge assembly 4 and the convex ring 5 is stable and does not deviate, even if the liquid impact, the filter cartridge assembly 4 will not be loose, thereby ensuring that the filter cartridge assembly 4 can always normally perform the filtering work.

[0049] As shown in Figure 1 and Figure 6 shown, the fastening mechanism 7 includes: a rotating rod 71, a hand wheel 72, a pressure plate 74, the middle part of the rotating rod 71 has a threaded part 711, the threaded part 711 is threadedly connected with the cover plate 2, and the abutting action on the lifting rod 43 can be realized by rotating the fastening mechanism 7, so as to ensure that the filter cartridge assembly 4 is tightly abutted on the convex ring 5, so that the installation position of the filter cartridge assembly 4 can be ensured to be stable and not deviated during installation; the hand wheel 72 is fixedly installed on the top of the rotating rod 71, and the hand wheel 72 is convenient for rotating the rotating rod 71 to save labor; the pressure plate 74 is movably connected to the lower end of the rotating rod 71 by a fastener, and when the driving hand wheel 72 is rotated, the pressure plate 74 can also move up and down with the rotating rod 71, so that the pressure plate 74 can abut against or be separated from the lifting rod 43.

[0050] Preferably, the fastening mechanism 7 further comprises a wing nut 73, and the wing nut 73 cooperates with the threaded part 711 to lock the rotating rod 71 on the cover plate 2. After the pressure plate 74 presses the lifting rod 43, the wing nut 73 is locked to reliably lock the rotating rod 71 on the cover plate 2, further ensuring the fastening action between the rotating rod 71 and the cover plate 2, and further ensuring that the filter cartridge assembly 4 is reliably installed on the convex ring 5.

[0051] As shown in Figure 6 and Figure 7 shown, the fastener includes a pair of connecting plates 75, and the pair of connecting plates 75 are symmetrically installed on the pressure plate 74 by screws 76, and the inner end of the connecting plate 75 is slidably connected with the ring groove 712 of the rotating rod 71.

[0052] Preferably, the pressure plate 74 is provided with a recess 741, the lower end of the rotating rod 71 abuts into the recess 741, the connecting plate 75 is fixed with the pressure plate 74, the connecting plate 75 is inserted into the ring groove 712, and the connecting plate 75 is fastened by the screw 76 to connect the pressure plate 74 and the rotating rod 71 together.

[0053] As shown in Figure 8As shown, in order to improve the sealing effect of the fastening mechanism 7 and the cover plate 2, a sealing groove 21 is formed at the lower end of the cover plate 2, and a sealing ring 8 is installed in the sealing groove 21. The inner side of the sealing ring 8 has a first sealing lip 81 and a second sealing lip 82 extending inwardly and having a ring structure. The first sealing lip 81 and the second sealing lip 82 are both abutted on the rotating rod 71, so that the rotating rod 71 has sealing property during operation, so as to prevent water leakage at the connection between the rotating rod 71 and the cover plate 2 during operation.

[0054] Preferably, in order to facilitate the treatment of the filtered impurities, a blowdown port 11 is arranged at the lower end of the filter body 1, and a blowdown plug 12 is installed at the blowdown port 11. Opening the blowdown plug 12 can make the impurities be discharged. In addition, a flow guide plate 6 capable of guiding flow is arranged at the bottom of the filter body 1 and connected to the blowdown port 11. The flow guide plate 6 has an inclined upper surface, which can accelerate the outward discharge of impurities, thereby improving the blowdown efficiency.

[0055] Working principle: The filter cartridge assembly 4 is pre-installed, the fastening mechanism 7 is pre-installed on the cover plate 2, then the filter cartridge assembly 4 is placed in the filter body 1 as a whole and corresponds to the convex ring 5, then the cover plate 2 is installed, finally the hand wheel 72 is rotated to make the rotating rod 71 drive the pressure plate 74 to move downward, the pressure plate 74 moving downward will extrude the lifting rod 43, so that the lifting rod 43 drives the first filter cartridge 41 and the second filter cartridge 44 to move downward, so that the positioning ring 452 abuts tightly on the rubber ring 52, and finally the wing nut 73 is locked. When disassembling and cleaning, the fastening mechanism 7 can be disassembled together with the cover plate 2. After the fastening mechanism 7 is disassembled, the extrusion on the filter cartridge assembly 4 is released, so that the filter cartridge assembly 4 can be directly taken out from the filter body 1. Therefore, the disassembly of the filter cartridge assembly 4 is very convenient, and the cleaning and replacement are also very convenient.

[0056] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the embodiments of the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A basket filter that is easy to replace the filter screen, characterized in that: include: filter body (1); a cover plate (2) mounted on the top of the filter body (1); A filter cartridge assembly (4) disposed within the filter body (1); A fastening mechanism (7) is supported and connected to the upper end of the filter cartridge assembly (4), wherein the fastening mechanism (7) is threadedly connected to the cover plate (2); The filter cartridge assembly (4) comprises a lifting rod (43) and a first filter cartridge (41) and a second filter cartridge (44) connected via a plurality of connecting components, wherein the first filter cartridge (41) is located within the second filter cartridge (44) to perform double filtration, and the lifting rod (43) is connected between the first filter cartridge (41) and the fastening mechanism (7).

2. The basket filter for easy replacement of filter screen according to claim 1, characterized in that: The first filter cartridge (41) is provided with a first convex cover (42), the second filter cartridge (44) is provided with a second convex cover (45), and a plurality of connecting components are connected between the first convex cover (42) and the second convex cover (45).

3. The basket filter for easy replacement of filter screen according to claim 2, characterized in that: The connecting component includes: A mounting plate (464) slidably mounted in the slide groove (451) of the second convex cover (45); a pull rod (461) vertically connected to the mounting plate (464), the pull rod (461) extending outside the second convex cover (45); A compression spring (463) is sleeved on the pull rod (461), and the compression spring (463) is held between the mounting plate (464) and the slide groove (451); A connecting rod (465) connected to the mounting plate (464), wherein the connecting rod (465) can be inserted into the slot (421) of the first convex cover (42).

4. The basket filter for easy replacement of filter screen according to claim 3, characterized in that: A pull plate (462) is installed at one end of the pull rod (461).

5. The basket filter for easy replacement of filter screen according to claim 1, characterized in that: The first filter cartridge (41) is provided with a plurality of first filter holes (411), and the second filter cartridge (44) is provided with a plurality of second filter holes (441), wherein the aperture of the first filter holes (411) is larger than the aperture of the second filter holes (441).

6. The basket filter for easy replacement of filter screen according to claim 2, characterized in that: A convex ring (5) is further provided in the filter body (1), and the second convex cover (45) is mounted on the convex ring (5).

7. The basket filter for easy replacement of filter screen according to claim 6, characterized in that: An annular limiting groove (51) is provided on the convex ring (5), a rubber ring (52) is provided in the limiting groove (51), and a positioning ring (452) is provided at the bottom of the second convex cover (45), and the positioning ring (452) is supported on the rubber ring (52).

8. The basket filter for easy replacement of filter screen according to claim 1, characterized in that: The fastening mechanism (7) comprises: A rotating rod (71) threadedly connected to the cover plate (2); A hand wheel (72) mounted on the top of the rotating rod (71); A pressure plate (74) is connected to the lower end of the rotating rod (71) via a fastener, and the pressure plate (74) is supported on the lifting rod (43).

9. The basket filter for easy replacement of filter screen according to claim 8, characterized in that: The fastener comprises a pair of connecting plates (75) symmetrically mounted on the pressure plate (74), wherein the connecting plates (75) are slidably engaged with the annular groove (712) of the rotating rod (71).

10. The basket filter with easy filter screen replacement according to claim 8, characterized in that: The fastening mechanism (7) further includes a butterfly nut (73) capable of locking the rotating rod (71) on the cover plate (2).

Images