Wear-resistant engine oil filter
By introducing buffering and backwashing mechanisms into the oil filter, buffering the impact force of the oil and removing impurities of the filter element, the problem of filter element deformation and reduced filtration effect is solved, extending the service life and improving the filtration effect.
Patent Information
- Application Number
- CN202420980343.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-08
AI Technical Summary
During long-term use, the filter element of the existing oil filter is easily deformed due to the impact of the engine oil, and the impurities are trapped, resulting in a decrease in the filtration effect, which cannot effectively buffer the impact force and perform backwashing.
An oil filter including a buffering mechanism and a backwashing mechanism is designed. The buffering mechanism buffers the impact force of the engine oil through a first spring, and the backwashing mechanism realizes backwashing of the filter element through a piston plate and a second spring to reduce wear and impurity residue.
It extends the service life of the filter element, improves the filtering effect, and avoids the decrease in the filtering effect caused by impact wear and impurity residue.
Smart Images
Figure CN222208046U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engine oil filters, in particular to a wear-resistant engine oil filter. Background Art
[0002] The existing oil filter includes a shell and a filter element arranged in the shell. The shell is provided with an oil inlet hole and an oil outlet hole. An oil inlet cavity connected to the oil inlet hole is formed between the shell and the filter element. An oil outlet channel connected to the oil outlet hole is formed in the filter element. Unfiltered oil flows into the oil inlet cavity from the oil inlet hole, is filtered by the filter element, and then enters the oil outlet channel and flows out through the oil outlet hole. After searching, a Chinese patent publication number CN219865189U discloses an oil filter. The utility model oil filter has a backup filtering function, which can ensure that the oil is normally filtered when the common filtering function fails, thereby avoiding damage to the engine caused by the failure of the common filtering function.
[0003] Although the above technical solution can ensure normal oil filtering when the usual filtering function fails, the filter element is easily deformed due to the large amount of impact of the oil during long-term use. At the same time, some impurities will be embedded in the filter element due to long-term impact of the oil, thereby greatly reducing the filtering effect of the filter element. Utility Model Content
[0004] In view of the deficiencies of the prior art, the utility model provides a wear-resistant oil filter, which solves the problems in the prior art that the filter element is easily deformed due to the impact of a large amount of oil during long-term use, and impurities are embedded in the filter element, thereby reducing the filtering effect of the filter element.
[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a wear-resistant oil filter, comprising a housing, a filter element is placed inside the housing, a top cover is embedded in the top of the housing and connected with a thread, a plurality of oil inlet holes are arranged in an annular array on the upper surface of the top cover, a buffer mechanism matched with the oil inlet holes is installed on the lower surface of the top cover, an oil guide pipe matched with the filter element is fixedly connected through the center of the upper surface of the top cover, and a backwash mechanism is installed inside the oil guide pipe;
[0006] The buffer mechanism includes a first annular sleeve fixedly connected to the lower surface of the top cover, a second annular sleeve is slidably connected to the outer surface of the first annular sleeve, an annular plate is fixedly provided on the outer surface of the bottom end of the second annular sleeve, an annular ring is fixedly connected to the inner wall of the second annular sleeve, and a plurality of first springs are fixedly connected between the upper surface of the annular ring and the bottom end of the first annular sleeve.
[0007] Preferably, a mounting seat matching the filter element is fixedly connected to the inner bottom of the shell, so as to facilitate limiting the bottom of the filter element.
[0008] Preferably, the filter element comprises an internal support tube with a porous structure, and a filter paper tube is fixedly sleeved on the outer surface of the internal support tube to facilitate filtering of the engine oil.
[0009] Preferably, the interior of the oil guide pipe is provided with a first oil outlet hole, a second oil outlet hole, a third oil outlet hole and a mounting hole which are interconnected in sequence, the top end of the filter element is embedded and mounted inside the mounting hole, and the diameter of the second oil outlet hole is larger than that of the first oil outlet hole and the third oil outlet hole, so as to facilitate the normal operation of the backwashing mechanism.
[0010] Preferably, the backwashing mechanism includes a bracket fixedly connected to the inside of the first oil outlet hole, a second spring fixedly connected to the lower surface of the bracket, a piston plate slidably connected to the inner wall of the third oil outlet hole fixedly connected to the bottom end of the second spring, a guide rod fixedly connected to the center position of the lower surface of the bracket, the guide rod passes through the piston plate and is slidably connected to the piston plate, so that the filter element can be backwashed, thereby improving the service life.
[0011] Preferably, the top end of the oil guide pipe is fixedly connected with an oil outlet pipe to facilitate the discharge of filtered oil.
[0012] The utility model provides a wear-resistant oil filter, which has the following beneficial effects:
[0013] 1. The wear-resistant oil filter has a buffer mechanism. When the oil enters the interior of the shell through the oil inlet hole, it will impact the upper surface of the annular plate. At this time, the first spring will be stretched, thereby buffering the impact force of the oil, reducing the impact force of the oil on the filter element, and further reducing the wear on the filter element and increasing the service life, thereby solving the problem that the existing oil filter has no buffer mechanism, which will cause impact wear to the filter element and reduce the service life.
[0014] 2. This wear-resistant oil filter has a backwashing mechanism. When the machine stops, the oil will no longer circulate. At this time, the piston plate loses pressure, and the second spring will drive the piston plate to reset and enter the third oil outlet hole, thereby squeezing the oil in the filter element so that the oil is squeezed out of the filter element. The filter element can be backwashed to wash away impurities adhering to the surface of the filter element, which is convenient for next use and improves the filtering effect, thereby solving the problem that the existing oil filter cannot backwash the filter element during use, thereby affecting the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model;
[0017] Figure 3 It is a structural schematic diagram of the buffer mechanism of the utility model;
[0018] Figure 4 It is a structural schematic diagram of the backwashing mechanism of the utility model.
[0019] In the figure, 1. shell; 2. filter element; 21. internal support tube; 22. filter paper tube; 3. top cover; 4. oil inlet hole; 5. buffer mechanism; 51. first annular sleeve; 52. second annular sleeve; 53. annular plate; 54. annular ring; 55. first spring; 6. oil guide pipe; 61. first oil outlet hole; 62. second oil outlet hole; 63. third oil outlet hole; 64. mounting hole; 7. backwash mechanism; 71. bracket; 72. second spring; 73. piston plate; 74. guide rod; 8. mounting seat; 9. oil outlet pipe. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] Example 1: Figure 1 and Figure 2 As shown, a wear-resistant oil filter comprises a housing 1, a filter element 2 is placed inside the housing 1, and a mounting seat 8 matching the filter element 2 is fixedly connected to the inner bottom of the housing 1. A top cover 3 is embedded and threadedly connected to the top of the housing 1, and a plurality of oil inlet holes 4 are provided in a circular array on the upper surface of the top cover 3. An oil guide pipe 6 matching the filter element 2 is fixedly connected to the center of the upper surface of the top cover 3, and an oil outlet pipe 9 is fixedly connected to the top of the oil guide pipe 6. The filter element 2 comprises an internal support pipe 21 with a porous structure, and a filter paper tube 22 is fixedly sleeved on the outer surface of the internal support pipe 21. The engine oil enters the interior of the housing 1 through the oil inlet hole 4, is filtered by the filter element 2, and is then discharged through the oil guide pipe 6 and the oil outlet pipe 9.
[0022] Example 2: Figures 1 to 3As shown, a buffer mechanism 5 matched with the oil inlet hole 4 is installed on the lower surface of the top cover 3, and the buffer mechanism 5 includes a first annular sleeve 51 fixedly connected to the lower surface of the top cover 3, and the outer surface of the first annular sleeve 51 is slidably connected to the second annular sleeve 52, and the bottom end outer surface of the second annular sleeve 52 is fixedly sleeved with an annular plate 53, and the inner wall of the second annular sleeve 52 is fixedly connected to an annular ring 54, and a plurality of first springs 55 are fixedly connected between the upper surface of the annular ring 54 and the bottom end of the first annular sleeve 51. When the engine oil enters the interior of the housing 1 through the oil inlet hole 4, it will impact the upper surface of the annular plate 53. At this time, the first spring 55 will be stretched, thereby buffering the impact force of the engine oil, reducing the impact force of the engine oil on the filter element 2, and further reducing the wear on the filter element 2, thereby improving the service life, thereby solving the problem that the existing oil filter has no buffer mechanism, which will cause impact wear to the filter element and reduce the service life.
[0023] Example 3: Figure 1 , Figure 2 and Figure 4 As shown, the interior of the oil guide pipe 6 is provided with a first oil outlet hole 61, a second oil outlet hole 62, a third oil outlet hole 63 and a mounting hole 64 which are interconnected in sequence. The top end of the filter element 2 is embedded and mounted in the mounting hole 64, and the diameter of the second oil outlet hole 62 is larger than the diameters of the first oil outlet hole 61 and the third oil outlet hole 63. A backwashing mechanism 7 is installed inside the oil guide pipe 6, and the backwashing mechanism 7 includes a bracket 71 fixedly connected to the interior of the first oil outlet hole 61, a second spring 72 is fixedly connected to the lower surface of the bracket 71, a piston plate 73 which is slidably connected to the inner wall of the third oil outlet hole 63 is fixedly connected to the bottom end of the second spring 72, and a guide rod 74 is fixedly connected to the center position of the lower surface of the bracket 71, and the guide rod 74 penetrates the piston plate 73 and is slidably connected to the piston plate 73. When the oil is filtered through the filter element 2 during use, it enters the interior of the filter element 2 and squeezes the piston plate 73, so that the piston The plate 73 enters the second oil outlet hole 62, and the filtered oil is discharged through the second oil outlet hole 62. When the machine stops, the oil no longer circulates. At this time, the piston plate 73 loses pressure, and the second spring 72 drives the piston plate 73 to reset and enter the third oil outlet hole 63, thereby squeezing the oil in the filter element 2, so that the oil is squeezed out of the filter element 2, so that the filter element 2 can be backwashed to wash away impurities adhering to the surface of the filter element 2, which is convenient for the next use and improves the filtering effect, thereby solving the problem that the existing oil filter cannot backwash the filter element during use and affects the filtering effect.
[0024] Working principle: When the engine oil enters the interior of the housing 1 through the oil inlet hole 4, it will impact the upper surface of the annular plate 53. At this time, the first spring 55 will be stretched, thereby buffering the impact force of the engine oil, reducing the impact force of the engine oil on the filter element 2, and then reducing the wear of the filter element 2 and increasing the service life, thereby solving the problem that the existing oil filter has no buffer mechanism, which will cause impact wear to the filter element and reduce the service life. After the engine oil is filtered through the filter element 2 and enters the interior of the filter element 2, it will squeeze the piston plate 73, so that the piston plate 73 enters the second oil outlet hole 6 2, the filtered engine oil will be discharged through the second oil outlet hole 62. When the machine stops, the engine oil will no longer circulate. At this time, the piston plate 73 loses pressure, and the second spring 72 will drive the piston plate 73 to reset and enter the third oil outlet hole 63, thereby squeezing the engine oil in the filter element 2, so that the engine oil is squeezed out of the filter element 2, so that the filter element 2 can be backwashed to wash away impurities adhering to the surface of the filter element 2, which is convenient for the next use and improves the filtering effect, thereby solving the problem that the existing oil filter cannot backwash the filter element during use and affects the filtering effect.
[0025] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.
[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A wear-resistant oil filter, comprising a housing (1), characterized in that: A filter element (2) is placed inside the housing (1); a top cover (3) is embedded in the top of the housing (1) and is threadedly connected; a plurality of oil inlet holes (4) are provided in an annular array on the upper surface of the top cover (3); a buffer mechanism (5) matching the oil inlet holes (4) is installed on the lower surface of the top cover (3); an oil guide pipe (6) matching the filter element (2) is fixedly connected and penetrated through the center of the upper surface of the top cover (3); a backwash mechanism (7) is installed inside the oil guide pipe (6); The buffer mechanism (5) comprises a first annular sleeve (51) fixedly connected to the lower surface of the top cover (3); a second annular sleeve (52) is slidably connected to the outer surface of the first annular sleeve (51); an annular plate (53) is fixedly provided on the outer surface of the bottom end of the second annular sleeve (52); an annular ring (54) is fixedly connected to the inner wall of the second annular sleeve (52); and a plurality of first springs (55) are fixedly connected between the upper surface of the annular ring (54) and the bottom end of the first annular sleeve (51).
2. The wear-resistant oil filter according to claim 1, characterized in that: A mounting seat (8) matching the filter element (2) is fixedly connected to the inner bottom of the housing (1).
3. The wear-resistant oil filter according to claim 1, characterized in that: The filter element (2) comprises an internal support tube (21) with a porous structure, and a filter paper tube (22) is fixedly sleeved on the outer surface of the internal support tube (21).
4. The wear-resistant oil filter according to claim 1, characterized in that: The interior of the oil guide pipe (6) is provided with a first oil outlet hole (61), a second oil outlet hole (62), a third oil outlet hole (63) and a mounting hole (64) which are interconnected in sequence, the top end of the filter element (2) is embedded and mounted in the interior of the mounting hole (64), and the diameter of the second oil outlet hole (62) is larger than the diameters of the first oil outlet hole (61) and the third oil outlet hole (63).
5. The wear-resistant oil filter according to claim 4, characterized in that: The backwashing mechanism (7) comprises a bracket (71) fixedly connected to the inside of the first oil outlet hole (61); a second spring (72) is fixedly connected to the lower surface of the bracket (71); a piston plate (73) slidably connected to the inner wall of the third oil outlet hole (63) is fixedly connected to the bottom end of the second spring (72); a guide rod (74) is fixedly connected to the center position of the lower surface of the bracket (71); the guide rod (74) passes through the piston plate (73) and is slidably connected to the piston plate (73).
6. The wear-resistant oil filter according to claim 1, characterized in that: The top end of the oil guide pipe (6) is fixedly connected to an oil outlet pipe (9).