Tubular filter

Abstract

The utility model discloses a tubular filter which comprises a shell, a rightward through filter cavity is arranged in the shell, a filter outlet is arranged in the left side surface of the filter cavity, the diameter of the filter outlet is smaller than that of the filter cavity, and a filter inlet is arranged in the inner curved surface of the filter cavity; according to the utility model, the filter net rack is sleeved with the filter element, so that the filtering function is realized, the cost of consumables used in the method is lower, and the filtering cost is reduced; the two ends of the inner filter net rack are supported, so that the filter net rack and the filter net outside the filter net rack can be kept stable in the filtering process, and the service life is prolonged; when the gland is taken out, the filter net rack can be driven to be taken out together, so that the filter net can be cleaned and replaced conveniently, the maintenance time is shortened, and the efficiency is improved.

Description

Technical Field

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

[0002] A tubular filter is a device used to filter impurities in a fluid. It generally includes a main tube shell, filter elements, and sealing elements.

[0003] Currently, the filter element in tubular filters generally refers to the filter cartridge. The filter cartridge assembly is directly fixed inside the main tube shell to complete the installation. However, the filter cartridge assembly is expensive, and the support components inside the filter cartridge cannot be reused, which causes waste. Therefore, it needs to be improved.

[0004] In addition, the filter elements in tubular filters are generally only installed in one direction, with the other end suspended or pressed by a spring. Under long-term use, the filter elements are prone to bending, which affects the performance. This defect also needs to be improved. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a tubular filter to solve the problems mentioned in the background section.

[0006] This utility model provides the following technical solution: a tubular filter, including a shell, a filter chamber extending to the right is provided inside the shell, a filter outlet is provided on the left side of the filter chamber, and the diameter of the filter outlet is smaller than the diameter of the filter chamber, and a filter inlet is provided on the curved surface inside the filter chamber.

[0007] The filter chamber is equipped with a filter frame, and the filter frame is covered with a filter screen. The left end of the filter frame abuts against the left side of the filter chamber, and the outer shell is equipped with a pressure cap that presses against the right end of the filter frame.

[0008] Preferably, the pressure cap includes a plate and a sealing plate fixed to the side of the plate. The sealing plate extends into the filter chamber, and a first sealing ring is provided in the curved surface of the sealing plate and a first sealing ring is provided in the curved surface of the filter chamber. The side of the sealing plate is provided with a circular groove for accommodating the filter mesh frame. It also includes fasteners for fixing the plate to the outer shell.

[0009] Preferably, the fastener includes a rod and a head, the plate body has a through hole for accommodating the rod, and the outer shell has a threaded hole for threaded connection to the rod, and the head presses against the side of the plate body;

[0010] The fasteners are provided in four parts, and the through holes and the screw holes are provided at equal angles with the axis of the outer shell as the center.

[0011] Preferably, the outer shell includes a first cylindrical body, a left fixing plate is welded to the left end of the first cylindrical body, and a right fixing plate is provided on the right side of the first cylindrical body;

[0012] The outer diameter of the left fixed plate is adapted to the outer diameter of the first cylinder, and the filter outlet is located inside the left fixed plate;

[0013] The right fixing plate has an extension hole with the same inner diameter as the first cylinder, and the outer curved surface of the extension hole has an annular groove that extends to the left. The first cylinder is inserted into the annular groove, and the right fixing plate is welded to the outer curved surface of the first cylinder.

[0014] The screw hole is located inside the right fixing plate and penetrates the right fixing plate.

[0015] Preferably, the filter frame includes a second cylinder, which has an internally and externally penetrating groove. The groove is arranged at equal angles with the axis of the second cylinder as the center, and there are two sets of grooves arranged on the left and right sides. The outer curved surface of the second cylinder also has a retaining groove, which is arranged in two sets and distributed on the left and right sides of the groove.

[0016] Preferably, a reinforcing ring is fixedly provided on the outer side of the second cylinder on the left side of the slot. The reinforcing ring is attached to the left side of the filter cavity, and the outer diameter of the reinforcing ring is adapted to the diameter of the filter cavity.

[0017] Preferably, a mounting platform is provided on the outer curved surface of the housing, and the mounting platform is provided with an adapter hole communicating with the filter inlet.

[0018] This utility model provides a tubular filter, which has the following beneficial effects:

[0019] This invention features a filter element mounted on the outer casing of a filter mesh frame to achieve filtration. This method uses lower-cost consumables, reducing filtration expenses.

[0020] The two ends of the internal filter frame of this utility model are supported so that the filter frame and the filter screen outside it can remain stable during the filtration process and extend their service life.

[0021] The pressure cap inside this invention can be removed along with the filter screen frame when it is taken out, so as to facilitate cleaning and replacement of the filter screen, reduce maintenance time and improve efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure within this utility model;

[0023] Figure 2 yes Figure 1A schematic diagram of the inner shell structure.

[0024] In the picture:

[0025] 11. Outer shell; 12. Filter chamber; 13. Filter outlet; 14. Filter inlet; 15. Filter mesh frame; 16. Pressure cap; 21. Plate; 22. Sealing plate; 31. Rod; 32. Head; 33. Screw hole; 41. First cylinder; 42. Left fixing plate; 43. Right fixing plate; 44. Extension hole; 45. Annular groove; 51. Second cylinder; 52. Through groove; 53. Slot; 54. Reinforcing ring; 61. Mounting platform. Detailed Implementation

[0026] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Reference Figures 1-2According to an embodiment of the present invention, a tubular filter includes a housing 11, a filter chamber 12 extending to the right is provided inside the housing 11, a filter outlet 13 is provided on the left side of the filter chamber 12, and the diameter of the filter outlet 13 is smaller than the diameter of the filter chamber 12, a filter inlet 14 is provided on the curved surface inside the filter chamber 12, a filter frame 15 is installed inside the filter chamber 12, and a filter screen (not shown in the figure) is provided on the outer sleeve of the filter frame 15, the left end of the filter frame 15 abuts against the left side of the filter chamber 12, and a pressure cap 16 is installed on the housing 11 to press against the right end of the filter frame 15.

[0031] A mounting platform 61 is provided on the outer curved surface of the outer shell 11. The mounting platform 61 has an adapter hole that communicates with the filter inlet 14. When liquid filtration is required, the operator connects the discharge pipe of other equipment to the outside of the mounting platform 61. At this time, the liquid in the discharge pipe will enter the filter chamber 12 through the filter inlet 14, and then enter the filter frame 15 after being filtered by the filter screen. It then flows out to the left through the filter outlet 13, thus completing the filtration work. The filter residue will remain outside the filter screen.

[0032] Furthermore, the pressure cap 16 is specifically configured as follows: the pressure cap 16 includes a plate 21 and a sealing plate 22 fixed to the side of the plate 21. The sealing plate 22 extends into the filter chamber 12, and a first sealing ring is provided in the curved surface of the sealing plate 22 and adheres to the curved surface of the filter chamber 12. The side of the sealing plate 22 is provided with a circular groove for accommodating the filter mesh frame 15. It also includes fasteners for fixing the plate 21 to the outer shell 11.

[0033] The fastener includes a rod portion 31 and a head portion 32. The plate body 21 has a through hole for accommodating the rod portion 31, and the outer shell 11 has a screw hole 33 for threaded connection to the rod portion 31. The head portion 32 is pressed against the side of the plate body 21.

[0034] There are at least three fasteners, and in this embodiment there are four. The through holes and the screw holes 33 are all arranged at equal angles with the axis of the outer shell 11 as the center.

[0035] When it is necessary to remove the plate 21 to clean or replace the filter screen outside the filter frame 15, the operator rotates the head 32 to unscrew the fastener. Then, the operator can pull the cover 16 to the right. Due to the interference fit and friction between the groove and the filter frame 15, the cover 16 can be pulled out to the right, which can then pull the filter frame 15 out. After that, the operator can separate the filter frame 15 and the cover 16 and clean or replace the filter screen.

[0036] The filter frame 15 is specifically constructed as follows: the filter frame 15 includes a second cylindrical body 51, and the second cylindrical body 51 is provided with a through groove 52 that runs through both the inside and outside. In order to increase the liquid flow efficiency, the through groove 52 is set at equal angles with the axis of the second cylindrical body 51 as the center, and the through groove 52 is provided in two sets arranged on the left and right sides. In order to further lock the filter screen that is fitted outside the filter frame 15, the outer curved surface of the second cylindrical body 51 is also provided with a locking groove 53. The locking groove 53 is provided in two sets and distributed on the left and right sides of the through groove 52.

[0037] The filter screen can be locked in the slot 53 by a snap ring, or the filter screen can be provided with a rubber strip that can be locked in the slot 53.

[0038] In addition, to improve the stability of the filter mesh frame 15 within the filter chamber 12, a reinforcing ring 54 is fixedly provided on the outside of the second cylinder 51 on the left side of the slot 53. The reinforcing ring 54 is attached to the left side of the filter chamber 12, and the outer diameter of the reinforcing ring 54 is adapted to the diameter of the filter chamber 12. The two ends of the filter mesh can also abut against the reinforcing ring 54 and the sealing plate 22 respectively to position the filter mesh.

[0039] The outer shell 11 is specifically constructed as follows: the outer shell 11 includes a first cylindrical body 41, a left fixing plate 42 is welded to the left end of the first cylindrical body 41, and a right fixing plate 43 is provided on the right side of the first cylindrical body 41.

[0040] The outer diameter of the left fixing plate 42 is adapted to the outer diameter of the first cylinder 41, and the filter outlet 13 is located inside the left fixing plate 42;

[0041] The right fixing plate 43 has an extension hole 44 with the same inner diameter as the first cylinder 41, and the outer curved surface of the extension hole 44 has an annular groove 45 that extends to the left. The first cylinder 41 is inserted into the annular groove 45, and the right fixing plate 43 is welded to the outer curved surface of the first cylinder 41.

[0042] The above connection method can prevent water leakage and is simple to process and produce.

[0043] The screw hole 33 is located inside and through the right fixing plate 43. When it is in the locked state, the rod 31 passes through the screw hole 33, and the head 32 abuts against the side of the plate 21.

[0044] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A tubular filter, comprising a housing (11), characterized in that: The outer shell (11) is provided with a filter chamber (12) that extends to the right. A filter outlet (13) is provided on the left side of the filter chamber (12), and the diameter of the filter outlet (13) is smaller than the diameter of the filter chamber (12). A filter inlet (14) is provided on the curved surface inside the filter chamber (12). The filter chamber (12) is equipped with a filter mesh frame (15), and the filter mesh frame (15) is covered with a filter screen. The left end of the filter mesh frame (15) abuts against the left side of the filter chamber (12), and the outer shell (11) is equipped with a pressure cap (16) that presses against the right end of the filter mesh frame (15).

2. A tubular filter according to claim 1, characterized in that: The pressure cap (16) includes a plate (21) and a sealing plate (22) fixed to the side of the plate (21). The sealing plate (22) extends into the filter chamber (12), and a first sealing ring is provided in the curved surface of the sealing plate (22) and attached to the curved surface of the filter chamber (12). The side of the sealing plate (22) is provided with a circular groove for accommodating the filter mesh frame (15), and also includes fasteners for fixing the plate (21) to the outer shell (11).

3. A tubular filter according to claim 2, characterized in that: The fastener includes a rod (31) and a head (32). The plate (21) has a through hole for accommodating the rod (31), and the outer shell (11) has a screw hole (33) for threaded connection to the rod (31). The head (32) is pressed against the side of the plate (21). The fasteners are provided in four parts, and the through holes and the screw holes (33) are provided at equal angles with the axis of the outer shell (11) as the center.

4. A tubular filter according to claim 3, characterized in that: The outer shell (11) includes a first cylindrical body (41), a left fixing plate (42) is welded to the left end of the first cylindrical body (41), and a right fixing plate (43) is provided on the right side of the first cylindrical body (41). The outer diameter of the left fixing plate (42) is adapted to the outer diameter of the first cylinder (41), and the filter outlet (13) is located inside the left fixing plate (42); The right fixing plate (43) is provided with an extension hole (44) with the same inner diameter as the first cylinder (41), and the outer curved surface of the extension hole (44) is provided with a left-through annular groove (45). The first cylinder (41) is inserted into the annular groove (45), and the right fixing plate (43) is welded to the outer curved surface of the first cylinder (41). The screw hole (33) is located inside the right fixing plate (43) and passes through the right fixing plate (43).

5. A tubular filter according to claim 1, characterized in that: The filter frame (15) includes a second cylinder (51), and the second cylinder (51) is provided with a through groove (52) that runs through the inside and outside. The through groove (52) is set at equal angles with the axis of the second cylinder (51) as the center, and the through groove (52) is provided in two sets arranged on the left and right. The outer curved surface of the second cylinder (51) is also provided with a slot (53), and the slot (53) is provided in two sets and distributed on the left and right sides of the through groove (52).

6. A tubular filter according to claim 5, characterized in that: A reinforcing ring (54) is fixed to the outside of the second cylinder (51) on the left side of the slot (53). The reinforcing ring (54) is attached to the left side of the filter cavity (12), and the outer diameter of the reinforcing ring (54) is adapted to the diameter of the filter cavity (12).

7. A tubular filter according to claim 1, characterized in that: An mounting platform (61) is provided on the outer curved surface of the housing (11), and an adapter hole communicating with the filter inlet (14) is provided in the mounting platform (61).

Images