Filter shell

Abstract

The utility model discloses a filter shell, which belongs to the field of filters and comprises a shell and a lower sealing cover, an upper end cover is mounted at the top of the shell, a filter element is arranged in the shell, the bottom of the shell is open, the lower sealing cover is arranged below the shell, a butt joint ring is arranged on the inner side of the upper end face of the lower sealing cover, and the butt joint ring is connected with the lower sealing cover. The lower end face of the shell is arranged in the butt joint ring, a sealing ring is arranged in the butt joint ring and makes contact with the lower surface of the shell, the shell is flush with the outer surface of the lower sealing cover, fixing plates are symmetrically arranged above the outer side of the lower sealing cover, and the fixing plates are vertically arranged. The bottom of the shell is sealed through the detachable lower sealing cover, the sealing performance during butt joint is improved through the butt joint ring and the sealing ring on the inner side, after butt joint, the fixing plates on the two sides can be lifted at the same time to improve the connecting strength of the sealing cover and the shell, then extrusion to the sealing ring and the overall sealing performance of the shell are improved, and leakage is prevented.

Description

Technical Field

[0001] The utility model relates to the field of filters, and more particularly to a filter housing. Background Art

[0002] An oil filter, also known as an oil filter, is used to remove impurities such as dust, metal particles, carbon deposits, and soot particles from the engine oil to protect the engine. Oil filters are divided into full-flow and split-flow types. Full-flow filters are connected in series between the oil pump and the main oil channel, filtering all the lubricating oil entering the main oil channel. Split-flow filters are connected in parallel with the main oil channel and only filter a portion of the lubricating oil delivered by the oil pump. For example, an oil filter disclosed in the prior art (Patent Announcement No.: CN220319643U) utilizes tapered pins on both sides to mate with tapered holes on the surface of the housing to facilitate installation and removal of the housing and cover plate. However, after a period of use, the relative friction between the pins and the tapered holes causes a certain degree of wear, which results in a loss of strength between the two, resulting in insufficient sealing at the connection between the cover plate and the housing, and prone to oil leakage. Utility Model Content

[0003] 1. Technical problems to be solved

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a filter housing, which can realize the rapid disassembly or installation of the sealing cover and the shell, and can adjust the connection strength between the two to ensure the sealing.

[0005] 2. Technical solution

[0006] In order to solve the above problems, the present invention adopts the following technical solutions.

[0007] A filter housing comprises a shell and a lower sealing cover, wherein an upper end cover is installed on the top of the shell, a filter element is arranged inside the shell, the bottom of the shell is open, the lower sealing cover is placed under the shell, a docking ring is provided on the inner side of the upper end surface of the lower sealing cover, the lower end surface of the shell is placed inside the docking ring, a sealing ring is provided inside the docking ring, the sealing ring contacts the lower surface of the shell, the shell is flush with the outer surface of the lower sealing cover, a fixing plate is symmetrically provided on the upper side of the outer side of the lower sealing cover, the fixing plate is vertically arranged, a protrusion is symmetrically provided on the outer side of the shell, the fixing plate vertically penetrates the protrusion, an oblique groove is opened on the outer surface of the fixing plate, a rotating collar is rotatably installed on the outer side of the two protrusions, the rotating collar is concentric with the axis of the shell, a toggle bolt is symmetrically provided on the inner wall of the rotating collar, and the toggle bolt is adapted to the inner size of the oblique groove.

[0008] Furthermore, grooves are symmetrically provided on the front surface of the shell, and limiting tooth grooves are evenly provided on the inner wall of the groove.

[0009] Furthermore, a thickened area is provided on the surface of the rotating collar, and the inner side of the thickened area is placed inside the groove.

[0010] Furthermore, a mounting hole is provided inside the thickened area, a wedge-shaped slider is slidably installed inside the mounting hole, and the wedge-shaped slider is adapted to the limiting tooth groove.

[0011] Furthermore, a pulling and twisting member is provided on the outside of the wedge-shaped slider, and the pulling and twisting member passes through the outer surface of the thickened area. A spring is provided on the pulling and twisting surface, and the spring is placed inside the mounting hole. One end of the spring contacts the wedge-shaped slider.

[0012] Furthermore, a multi-faceted area is provided below the outer side of the lower sealing cover.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the advantages of the present invention are: the present invention provides a filter housing, the bottom of the housing is sealed by a detachable lower sealing cover, and the sealing performance during docking is increased by the inner docking ring and the sealing ring. After docking, the fixing plates on both sides can be lifted up at the same time to improve the strength of the connection between the sealing cover and the housing, thereby increasing the extrusion of the sealing ring, and the overall sealing shape of the housing to prevent leakage.

[0015] At the same time, the fixing plate can only move up and down along the protrusion, so that when the filter is rotated for installation, it can be rotated through the multi-faceted area at the bottom with a ratchet wrench, thereby improving the convenience during installation or removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the installation three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the shell of the present utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the groove area of ​​the utility model;

[0019] Figure 4 This is a schematic diagram of the fixed plate structure of the present utility model;

[0020] Figure 5 For this practical information Figure 2 Schematic diagram of the enlarged three-dimensional structure of area A.

[0021] Explanation of the numbers in the figure: 1. Shell; 2. Upper end cover; 3. Lower sealing cover; 31. Multi-faceted area; 32. Docking ring; 33. Sealing ring; 4. Fixing plate; 41. Inclined groove; 5. Protrusion; 6. Rotating collar; 61. Toggle bolt; 62. Thickened area; 63. Mounting hole; 7. Groove; 71. Limiting tooth groove; 8. Wedge-shaped slider; 81. Pull and twist; 82. Spring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] Example:

[0024] See also Figure 1-Figure 5 As shown, a filter housing includes a shell 1 and a lower sealing cover 3. An upper end cover 2 is installed on the top of the shell 1, a filter element is arranged inside the shell 1, the bottom of the shell 1 is open, and the lower sealing cover 3 is placed below the shell 1. A docking ring 32 is arranged on the inner side of the upper end surface of the lower sealing cover 3, and the lower end surface of the shell 1 is placed inside the docking ring 32. When the two are docked, an L-shaped docking surface can be formed by the cooperation between the lower end surface of the shell 1 and the docking ring 32 to improve the sealing performance. A sealing ring 33 is arranged inside the docking ring 32. The sealing ring 33 is in contact with the lower surface of the shell 1 to control the extrusion of the shell 1 and the lower sealing cover 3 to increase the extrusion of the sealing ring 33. , to further improve the sealing performance, the shell 1 is flush with the outer surface of the lower sealing cover 3, and a fixing plate 4 is symmetrically provided on the upper outer side of the lower sealing cover 3. The fixing plate 4 is vertically arranged, and a protrusion 5 is symmetrically provided on the outer side of the shell 1. The fixing plate 4 vertically penetrates the protrusion 5, so that the lower sealing cover 3 can only slide along the axis of the shell 1. A multi-faceted area 31 is provided at the lower outer side of the lower sealing cover 3. When installing the filter, the external ratchet wrench is cooperated with the multi-faceted area 31 to realize rotation. At the same time, the cooperation between the fixing plate 4 and the protrusion 5 keeps the multi-faceted area 31 rotating, which can drive the shell 1 to rotate at the same time to realize disassembly and assembly.

[0025] Please refer to Figure 4 and Figure 5As shown, an oblique groove 41 is provided on the outer surface of the fixed plate 4, and a rotating collar 6 is rotatably installed on the outer side of the two protrusions 5. The rotating collar 6 is concentric with the axis of the shell 1, and a toggle bolt 61 is symmetrically provided on the inner wall of the rotating collar 6. The toggle bolt 61 is adapted to the internal size of the oblique groove 41. Since the fixed plate 4 can only move up and down, the toggle bolt 61 can be driven to move when the rotating collar 6 rotates, and then the fixed plate 4 is driven to move up by squeezing the oblique groove 41 to improve the sealing performance, and the two fixed plates 4 are synchronously driven to move up by controlling the rotation of the rotating collar 6.

[0026] Please refer to Figure 1 and Figure 3 As shown, the front surface of the shell 1 is symmetrically provided with grooves 7, and the inner wall of the groove 7 is evenly provided with limiting tooth grooves 71. The surface of the rotating collar 6 is provided with a thickened area 62, and the inner side of the thickened area 62 is placed inside the groove 7 to limit the rotating collar 6. The protrusions 5 on both sides are used to ensure that the rotating collar 6 can only rotate. A mounting hole 63 is provided on the inner side of the thickened area 62, and a wedge-shaped slider 8 is slidably installed inside the mounting hole 63. The wedge-shaped slider 8 is adapted to the limiting tooth groove 71, and the cooperation of the two can fix the rotating collar 6, and then fix the lower sealing cover 3.

[0027] Among them, a pull-twist 81 is provided on the outside of the wedge-shaped slider 8, and the pull-twist 81 passes through the outer surface of the thickened area 62, so that the wedge-shaped slider 8 can be separated from the limiting tooth groove 71 by pulling the pull-twist 81 from the outside during disassembly. A spring 82 is provided on the surface of the pull-twist 81, and the spring 82 is placed inside the mounting hole 63. One end of the spring 82 is in contact with the wedge-shaped slider 8. The elastic force of the spring 82 is used to make the wedge-shaped slider 8 always have an inward force, realizing the real-time phenomenon. The inclination direction of the end of the wedge-shaped slider 8 must ensure that the rotating ring 6 can rotate smoothly when the toggle bolt 61 is squeezed against the inclined groove 41, but cannot be reversed.

[0028] Working principle: When disassembling, the lower sealing cover 3 can be separated from the housing 1 to facilitate the replacement of the internal filter element and the inspection and maintenance of the interior. When installing, first rotate the rotating collar 6 to one side so that the thickened area 62 is placed on the inner side of the groove 7. At this time, the installation path of the toggle bolt 61 and the fixing plate 4 are misaligned. Then, the lower sealing cover 3 is installed with the housing 1 so that the fixing plate 4 passes through the protrusion 5, and the lower end face of the housing 1 enters the interior of the docking ring 32, and squeezes the sealing ring 33, and then slides and rotates. The rotating collar 6 drives the toggle bolt 61 to enter the interior of the inclined groove 41. The inclined groove 41 is tilted to squeeze and lift the fixed plate 4 to improve the connection strength between the lower sealing cover 3 and the shell 1, increase the squeezing of the sealing ring 33, and improve the sealing of the connection. At the same time, due to the presence of the spring 82, the wedge-shaped slider 8 is always subjected to an inward force, and then when the inclined groove 41 is squeezed, real-time limiting can be achieved to prevent the rotating collar 6 from reversing, so as to ensure the squeezing and lifting force on the fixed plate 4, and then ensure the stability and convenience of installation.

[0029] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A filter housing, comprising a housing (1) and a lower sealing cover (3), wherein an upper end cover (2) is mounted on the top of the housing (1), and a filter element is disposed inside the housing (1), characterized in that: The bottom of the shell (1) is open, the lower sealing cover (3) is placed below the shell (1), a docking ring (32) is arranged on the inner side of the upper end surface of the lower sealing cover (3), the lower end surface of the shell (1) is placed inside the docking ring (32), a sealing ring (33) is arranged inside the docking ring (32), the sealing ring (33) is in contact with the lower surface of the shell (1), the outer surface of the shell (1) and the lower sealing cover (3) are flush, and a fixing plate (4) is symmetrically arranged on the upper side of the outer side of the lower sealing cover (3). ), the fixing plate (4) is vertically arranged, the outer side of the shell (1) is symmetrically provided with protrusions (5), the fixing plate (4) vertically penetrates the protrusions (5), the outer surface of the fixing plate (4) is provided with an oblique groove (41), and a rotating ring (6) is rotatably installed on the outer side of the two protrusions (5), the rotating ring (6) is concentric with the axis of the shell (1), and the inner wall of the rotating ring (6) is symmetrically provided with a toggle bolt (61), and the toggle bolt (61) is adapted to the inner size of the oblique groove (41).

2. A filter housing according to claim 1, characterized in that: The front surface of the housing (1) is symmetrically provided with grooves (7), and the inner wall of the groove (7) is evenly provided with limiting tooth grooves (71).

3. A filter housing according to claim 2, characterized in that: The surface of the rotating collar (6) is provided with a thickened area (62), and the inner side of the thickened area (62) is placed inside the groove (7).

4. A filter housing according to claim 3, characterized in that: A mounting hole (63) is provided inside the thickened area (62), a wedge-shaped slider (8) is slidably mounted inside the mounting hole (63), and the wedge-shaped slider (8) is matched with the limiting tooth groove (71).

5. A filter housing according to claim 4, characterized in that: A pull-twist (81) is arranged on the outside of the wedge-shaped slider (8), and the pull-twist (81) passes through the outer surface of the thickened area (62). A spring (82) is sleeved on the surface of the pull-twist (81), and the spring (82) is placed inside the mounting hole (63). One end of the spring (82) contacts the wedge-shaped slider (8).

6. A filter housing according to claim 1, characterized in that: A multi-faceted area (31) is provided below the outer side of the lower sealing cover (3).

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