Sealing structure for oil filter

Abstract

The utility model relates to the technical field of engine oil filters, and discloses a sealing structure for an engine oil filter, which comprises an engine oil filter main body, a top cover is arranged at the top end of the engine oil filter main body, a mounting groove is formed in the top end of the outer side of the top cover, and a sealing assembly is arranged in the mounting groove. And a fixing ring is mounted at the top end of the top cover on the inner side of the sealing assembly. Through rotation of the rotating ring, the elastic abutting blocks penetrate through the fixing channel and abut against the inner side of the sealing ring, so that the radial friction resistance of the sealing ring is improved, meanwhile, the elastic abutting blocks and the abutting ring are vertically distributed to prevent the abutting ring from moving upwards, and therefore the installation and fixing firmness of the sealing assembly is further improved; and due to the fact that the positions of the fixing blocks correspond to the positions of the elastic abutting blocks internally and externally, the fixing blocks can be shifted conveniently, the positions of the elastic abutting blocks can be adjusted, and the sealing assembly can be disassembled and replaced conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of oil filters, and particularly relates to a sealing structure for an oil filter. Background Technique

[0002] The oil filter is located in the engine lubrication system, also known as the oil filter element. Its upstream is the oil pump, and its downstream is each component in the engine that needs lubrication. Its function is to remove impurities such as dust, metal particles, carbon deposits, and soot particles in the oil to protect the engine;

[0003] Chinese Patent Grant Publication No. CN218062428U discloses a sealing structure for an oil filter, including a housing and a bottom plate seat fixedly connected to one end of the housing. A screw hole is provided in the middle of the bottom plate seat. It also includes a sealing component provided on one side of the bottom plate seat for preventing oil leakage of the oil filter. The sealing component includes an outer groove provided on one side of the bottom plate seat. The sealing ring is not easily displaced and detached due to the frictional force, thus avoiding the oil leakage situation caused by poor sealing effect due to the displacement and detachment of the sealing ring of the oil filter. At the same time, it is also convenient to replace the sealing ring, enhancing the practicability. The above existing technical solution has the following deficiencies: This sealing structure promotes the radial extrusion of the pressing piece on the sealing ring through the extrusion action of the elastic piece on the pressing piece, so as to use the frictional resistance to prevent the upward detachment of the sealing ring. Since the elastic piece is curved and the pressing piece is stuck inside the notch, when rotating the circular ring, it is easy to be affected by the elastic stretching action of the elastic piece and it is not easy to rotate the pressing piece out of the notch, thus it is not easy to disassemble and replace the sealing ring. Moreover, only through radial extrusion, the fixing effect on the sealing ring is limited, and the sealing ring can still detach upward from the outer groove under the action of friction. Therefore, there is room for improvement. Content of the Utility Model

[0004] The purpose of the utility model is to provide a sealing structure for an oil filter to solve the problems in the above background technique that the existing sealing structure of the oil filter has limited sealing and fixing effects and is not easy to disassemble the sealing ring.

[0005] To achieve the above object, the present utility model provides the following technical solution: A sealing structure for an oil filter, including an oil filter main body, a top cover is provided at the top of the oil filter main body, and an installation groove is opened at the top of the outer side of the top cover. A sealing assembly is arranged inside the installation groove. A fixing ring is installed at the top of the top cover inside the sealing assembly, and a rotating ring is sleeved inside the fixing ring. The outer diameter of the rotating ring is smaller than the inner diameter of the fixing ring. Guide holes are uniformly opened inside the rotating ring, and limiting guide blocks penetrate through the inside of the guide holes. The outer ends of the limiting guide blocks are connected to the inner wall of the fixing ring. Fixing blocks are uniformly installed on the inner wall of the rotating ring. Fixing channels are uniformly opened inside the fixing ring, and elastic pressing blocks are correspondingly installed on the outer wall of the rotating ring inside the fixing channels. The outer sides of the elastic pressing blocks penetrate through the fixing channels and abut against the inner wall of the sealing assembly.

[0006] Preferably, the side view cross-section of the limiting guide block is T-shaped, and the rotating ring forms a rotating structure with the fixing ring through the cooperation of the guide hole and the limiting guide block.

[0007] Preferably, the length of the guide hole is adapted to the length of the fixing channel, and the guide holes are distributed in an equidistant triangular pattern on the rotating ring.

[0008] Preferably, the top view cross-section of the elastic pressing block is trapezoidal, the length of the elastic pressing block is smaller than the length of the fixing channel, and the elastic pressing block is made of silica gel.

[0009] Preferably, the elastic pressing blocks are distributed in an equidistant triangular pattern on the rotating ring, the positions of the elastic pressing blocks and the fixing blocks correspond to each other inside and outside, and the elastic pressing blocks and the guide holes are distributed in a staggered manner on the rotating ring.

[0010] Preferably, the sealing assembly includes a sealing ring, and a pressing ring is installed at the bottom inside the sealing ring, and an inner eaves is provided at the top of the sealing ring.

[0011] Preferably, when the sealing ring is located inside the installation groove, the height of the pressing ring is lower than the height of the elastic pressing block, and at the same time, the bottom end of the inner eaves abuts against the top end of the fixing ring.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] (1) By rotating the rotating ring, the elastic pressing block penetrates through the fixed channel and abuts against the inner side of the sealing ring, so as to increase its radial frictional resistance. At the same time, by utilizing the up-and-down distribution of the elastic pressing block and the pressing ring, the elastic pressing block blocks the upward movement of the pressing ring, thereby further improving the installation and fixation reliability of the sealing assembly. And because the positions of the fixing block and the elastic pressing block correspond to each other inside and outside, and the elastic pressing block has elasticity, it is then convenient to toggle the fixing block to rotate the rotating ring, so as to adjust the position of the elastic pressing block to realize the disassembly and replacement of the sealing assembly;

[0014] (2) Through the action of the pressing ring, the contact friction between the sealing ring and the fixed ring is promoted, so that the installation of the sealing assembly in the installation groove is more stable. And by utilizing the action of the inner eaves, the contact surface at the top of the sealing ring is increased, thereby increasing the installation sealing performance between the main body of the oil filter and parts such as the oil pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 is a three-dimensional sectional structural schematic diagram of the sealing assembly of the present invention;

[0018] Figure 3 is a three-dimensional structural schematic diagram of the rotating ring of the present invention;

[0019] Figure 4 is a three-dimensional structural schematic diagram of the distribution of the elastic pressing blocks of the present invention.

[0020] The reference numerals in the drawings are explained as follows: 1, main body of the oil filter; 2, top cover; 3, installation groove; 4, sealing assembly; 401, sealing ring; 402, pressing ring; 403, inner eaves; 5, fixed ring; 6, rotating ring; 7, guiding hole; 8, fixing block; 9, elastic pressing block; 10, limiting guiding block; 11, fixed channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0022] Please refer to Figures 1 - 4 , an embodiment provided by the present utility model: a sealing structure for an oil filter, including an oil filter main body 1, a top cover 2 is provided at the top of the oil filter main body 1, and an installation groove 3 is opened at the top of the outer side of the top cover 2, and a sealing component 4 is arranged inside the installation groove 3;

[0023] The sealing component 4 includes a sealing ring 401, and a pressing ring 402 is installed at the bottom end of the inner side of the sealing ring 401, and an inner eaves 403 is arranged at the top end of the sealing ring 401;

[0024] When the sealing ring 401 is located inside the installation groove 3, the height of the pressing ring 402 is lower than the height of the elastic pressing block 9, and at the same time, the bottom end of the inner eaves 403 abuts against the top end of the fixing ring 5;

[0025] Specifically, as shown in Figure 1 , Figure 2 and Figure 4 , when in use, the inner eaves 403 is used to increase the contact surface at the top end of the sealing component 4, thereby improving the contact sealing effect between the oil filter main body 1 and the oil pump parts;

[0026] A fixing ring 5 is installed at the top end of the top cover 2 inside the sealing component 4, and a rotating ring 6 is sleeved inside the fixing ring 5. The outer diameter of the rotating ring 6 is smaller than the inner diameter of the fixing ring 5, and guiding holes 7 are evenly opened at equal intervals inside the rotating ring 6;

[0027] The length of the guiding holes 7 is adapted to the length of the fixing channels 11, and the guiding holes 7 are distributed in an equidistant triangular pattern on the rotating ring 6;

[0028] Specifically, as shown in Figure 1 , when in use, by the cooperation of the guiding holes 7 and the limiting guide blocks 10, after the rotating ring 6 rotates a certain distance, the elastic pressing block 9 can completely move into the fixing channels 11;

[0029] And limiting guide blocks 10 penetrate through the inside of the guiding holes 7;

[0030] The side view cross-section of the limiting guide block 10 is T-shaped, and the rotating ring 6 forms a rotating structure with the fixing ring 5 through the cooperation of the guiding holes 7 and the limiting guide blocks 10;

[0031] Specifically, as Figure 1 and Figure 3 shown, when in use, the cooperation between the limit guide block 10 and the guide hole 7 is utilized to facilitate the guiding of the rotation of the rotating ring 6, so as to achieve the stable lateral rotation effect of the rotating ring 6;

[0032] The outer end of the limit guide block 10 is connected to the inner wall of the fixed ring 5. Fixing blocks 8 are evenly installed on the inner wall of the rotating ring 6. Fixing channels 11 are evenly formed inside the fixed ring 5, and elastic pressing blocks 9 are correspondingly installed on the outer wall of the rotating ring 6 inside the fixing channels 11;

[0033] The top view cross-section of the elastic pressing block 9 is trapezoidal. The length of the elastic pressing block 9 is less than the length of the fixing channel 11. The elastic pressing block 9 is made of silica gel;

[0034] Moreover, the outer side of the elastic pressing block 9 penetrates through the fixing channel 11 and abuts against the inner wall of the sealing assembly 4;

[0035] Specifically, as Figure 1 and Figure 3 and Figure 4 shown, when in use, by virtue of the special structure and material characteristics of the elastic pressing block 9, when the elastic pressing block 9 moves, it can slide along the edge of the fixing channel 11 and be temporarily stored in the gap between the rotating ring 6 and the fixed ring 5. And when the elastic pressing block 9 moves into the fixing channel 11, it can reset and abut against the sealing ring 401.

[0036] Working principle: When the present utility model is in use, first, the sealing assembly 4 is snapped downward into the installation groove 3, so that the pressing ring 402 abuts against the bottom end of the outer wall of the fixed ring 5, and the bottom end of the inner eaves 403 abuts against the top outer edge of the fixed ring 5;

[0037] Secondly, the fixing block 8 is toggled to drive the rotating ring 6 to rotate along the inner side of the fixed ring 5, synchronously driving the guide hole 7 to move, so that the position of the limit guide block 10 changes from one end of the guide hole 7 to the other end. During the rotation of the rotating ring 6, it synchronously drives the elastic pressing block 9 to rotate and makes the elastic pressing block 9 move into the fixing channel 11. And since the elastic pressing block 9 is made of silica gel, after the elastic pressing block 9 enters the fixing channel 11, it is compressed and deformed to generate a reset, so that the outer wall of the elastic pressing block 9 abuts against the inner wall of the sealing ring 401, to promote the contact friction between the fixed ring 5 and the sealing ring 401. At the same time, since the elastic pressing block 9 is located above the pressing ring 402 and their positions are relatively up and down, the elastic pressing block 9 blocks the pressing ring 402, thereby preventing the sealing assembly 4 from moving upward out of the installation groove 3;

[0038] Finally, by toggling the fixed block 8 in the reverse direction, the rotating ring 6 rotates in the reverse direction. Since the top view cross-section of the elastic pressing block 9 is trapezoidal, the elastic pressing block 9 moves towards the inner side of the fixed ring 5 along the fixed channel 11, thus removing the interception of the elastic pressing block 9 on the pressing ring 402, and realizing the upward removal and replacement of the sealing assembly 4.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0040] The device embodiments described above are only illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative work.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sealing structure for an oil filter, comprising an oil filter body (1), characterized in that: The top of the oil filter body (1) is provided with a top cover (2), and the top of the outer side of the top cover (2) is provided with a mounting groove (3), the inside of the mounting groove (3) is provided with a sealing assembly (4), the top of the top cover (2) inside the sealing assembly (4) is provided with a fixing ring (5), and the inside of the fixing ring (5) is provided with a rotating ring (6), the outer diameter of the rotating ring (6) is smaller than the inner diameter of the fixing ring (5), and the inside of the rotating ring (6) is evenly provided with guide holes (7), and the guide holes (7) are provided in a uniform manner. The inside of the hole (7) is penetrated by a limiting guide block (10), the outer end of the limiting guide block (10) is connected to the inner wall of the fixed ring (5), the inner wall of the rotating ring (6) is evenly installed with a fixing block (8), the inside of the fixed ring (5) is evenly opened with a fixing channel (11), and the outer wall of the rotating ring (6) inside the fixing channel (11) is correspondingly installed with an elastic pressure block (9), and the outer side of the elastic pressure block (9) penetrates the fixing channel (11) and abuts against the inner wall of the sealing assembly (4).

2. The sealing structure for an oil filter according to claim 1, characterized in that: The side view cross section of the position limiting guide block (10) is T-shaped, and the rotating ring (6) cooperates with the position limiting guide block (10) and the fixing ring (5) through the guide hole (7) to form a rotating structure.

3. The sealing structure for an oil filter according to claim 1, characterized in that: The length of the guide holes (7) is matched to the length of the fixed channel (11), and the guide holes (7) are distributed in equal-spaced triangles on the rotating ring (6).

4. The sealing structure for an oil filter according to claim 1, characterized in that: The cross-section of the elastic pressing block (9) in top view is a trapezoid; the length of the elastic pressing block (9) is smaller than the length of the fixed channel (11); and the elastic pressing block (9) is made of silicone.

5. The sealing structure for an oil filter according to claim 1, characterized in that: The elastic pressure blocks (9) are distributed in equal-spaced triangles on the rotating ring (6); the positions of the elastic pressure blocks (9) and the fixed blocks (8) correspond inside and outside; and the elastic pressure blocks (9) and the guide holes (7) are staggered and distributed on the rotating ring (6).

6. The sealing structure for an oil filter according to claim 1, characterized in that: The sealing assembly (4) comprises a sealing ring (401), and a pressing ring (402) is installed at the bottom end of the inner side of the sealing ring (401), and an inner edge (403) is arranged at the top end of the sealing ring (401).

7. The sealing structure for an oil filter according to claim 6, characterized in that: When the sealing ring (401) is located inside the mounting groove (3), the height of the pressing ring (402) is lower than the height of the elastic pressing block (9), and at the same time, the bottom end of the inner edge (403) abuts against the top end of the fixing ring (5).

Images