Automobile oil filter convenient to assemble

Abstract

The utility model relates to filter technology field, concretely relates to a car engine oil filter convenient to assemble, including bottom shell, bottom shell is equipped with the accommodation cavity in, bottom shell's top is equipped with the accommodation opening, the bottom of accommodation cavity is equipped with bottom cover, bottom cover is equipped with valve port, the top of valve port is equipped with valve core, the top of valve core is equipped with spring, the inside of accommodation cavity is equipped with support and support pipe, positioning part is located the top of spring, the top of support arm and the bottom of support pipe abut, the bottom of support arm and the top of bottom cover abut, the top of support pipe is equipped with top cover, the top of top cover is equipped with oil inlet cover, the utility model discloses through forming bottom cover - support arm - support pipe - top cover - oil inlet cover's vertical support structure, ensure that the vertical position of each component is fixed in the accommodation cavity, in addition, the oil inlet cover and the accommodation opening are connected, do not need to weld or bolt connection, realize quick assembly and fixed through the joint structure, reduce production time and artificial cost.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to an easy-to-assemble automotive oil filter. Background Technology

[0002] The automotive oil filter is a core component of the engine lubrication system. Its core function is to filter impurities in the oil, ensuring the lubrication effect and lifespan of internal engine parts. The overflow valve, a critical safety component of the oil filter, is mainly used to open a bypass channel to allow the oil to circulate directly when the filter element is clogged or the oil becomes viscous at low temperatures, preventing engine damage due to insufficient lubrication.

[0003] In existing automotive oil filter overflow valve installation structures, the overflow valve is generally welded directly to the inside of the filter's bottom housing. This installation method requires specialized welding equipment and specific process parameters to achieve a tight seal between the overflow valve and the bottom housing, which not only increases the complexity of the production process but also places high demands on the technical skills of the operators.

[0004] The application of welding technology also has several drawbacks. First, the welding process requires additional equipment and labor costs, which increases the overall production cost of the filter. Second, the welded joints are prone to defects such as incomplete welding and missing welding due to process deviations, which can lead to the risk of oil leakage and directly affect the sealing performance and safety of the filter. Third, the welded structure is non-removable, and if the overflow valve fails, it cannot be repaired or replaced separately. The entire filter must be replaced, which increases the user's usage and maintenance costs. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings in the prior art by providing an easy-to-assemble automotive oil filter.

[0006] The purpose of this utility model is achieved through the following technical solution: an easy-to-assemble automotive oil filter, including a bottom shell; a receiving cavity is provided inside the bottom shell; and a receiving opening communicating with the receiving cavity is provided at the top of the bottom shell; The bottom of the accommodating cavity is provided with a bottom cover; a valve port is provided through the middle of the bottom cover; a valve core is provided at the top of the valve port; and a spring is provided at the top of the valve core. The accommodating cavity is provided with a bracket and a support tube; the bracket includes a positioning part; support arms extend downward from both sides of the positioning part; the support arms are inclined to the positioning part; an elastic deformation part is provided between the support arms and the positioning part; the positioning part is located at the top of the spring; the valve core and the spring are located between the two support arms; The positioning part, spring, and valve core are all sleeved inside the support tube; the top of the support arm abuts against the bottom of the support tube; the bottom of the support arm abuts against the top of the bottom cover; the top of the support tube is provided with a top cover; the top of the top cover is provided with an oil inlet cover; the oil inlet cover is engaged with the receiving opening.

[0007] The present invention is further configured such that the bottom shell includes a cylindrical portion and a frustum portion disposed at the bottom of the cylindrical portion; the radius of the inner wall of the cylindrical portion is greater than the radius of the inner wall of the frustum portion; and the accommodating opening is disposed at the top of the cylindrical portion.

[0008] The present invention is further configured such that the outer periphery of the bottom cover is provided with a plurality of first arc-shaped abutment arms; the distance between the center of the bottom cover and the first arc-shaped abutment arms is the same as the radius of the inner wall of the cylindrical part.

[0009] The present invention is further configured such that the bottom cover has a first inclined portion on the outer periphery of the valve port; the bottom of the support arm abuts against the top of the first inclined portion.

[0010] The present invention is further configured such that a filter chamber is provided inside the support tube; the positioning part, the spring and the valve core are all sleeved inside the filter chamber; the support tube is provided with multiple filter holes; and a filter core is provided on the outer wall of the support tube.

[0011] The present invention is further configured such that the oil inlet cap has an oil inlet communicating with the accommodating cavity; and the middle part of the oil inlet cap has an oil outlet.

[0012] The present invention is further configured such that the outer periphery of the top cover is provided with a plurality of second arc-shaped abutment arms; the distance between the center of the top cover and the second arc-shaped abutment arms is the same as the radius of the inner wall of the cylindrical part; and the top cover is provided with a clearance opening for the oil port to pass through.

[0013] The present invention is further configured such that the top cover has a second inclined portion on the outer periphery of the relief opening; the top of the support tube abuts against the bottom of the second inclined portion.

[0014] The present invention is further configured such that: an arc-shaped reverse fold strip is provided at the accommodating opening; a groove is formed between the arc-shaped reverse fold strip and the top of the cylindrical part; an elastically deformable protrusion is provided on the outer periphery of the oil inlet cover; and the elastically deformable protrusion engages with the groove.

[0015] The present invention is further provided with a sealing ring between the accommodating opening and the oil inlet cap.

[0016] The beneficial effects of this utility model are as follows: By forming a longitudinal support structure of bottom cover-support arm-support tube-top cover-oil inlet cover, this utility model ensures that the longitudinal position of each component is fixed in the accommodating cavity. In addition, the oil inlet cover is snapped into the accommodating opening, eliminating the need for welding or bolt connection. The snap-fit ​​structure enables rapid assembly and fixation, reducing production time and labor costs. Attached Figure Description

[0017] The utility model will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present utility model. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is an exploded view of the hidden structure of this utility model; Figure 4 yes Figure 2 A magnified view of part A in the middle; Figure 5 yes Figure 2 A magnified view of part B in the middle; The components are as follows: 1. Bottom shell; 11. Receiving cavity; 12. Receiving opening; 13. Cylindrical part; 14. Frustum part; 15. Arc-shaped reverse fold strip; 16. Slot; 3. Bottom cover; 31. Valve port; 32. First arc-shaped abutment arm; 33. First inclined part; 4. Valve core; 41. Spring; 51. Positioning part; 52. Support arm; 53. Elastic deformation part; 6. Support tube; 61. Filter chamber; 62. Filter hole; 63. Filter element; 7. Top cover; 71. Second arc-shaped abutment arm; 72. Second inclined part; 74. Relief port; 8. Oil inlet cover; 81. Oil inlet; 82. Oil outlet; 83. Elastic deformation rib; 9. Sealing ring. Detailed Implementation

[0019] The present invention will be further described in conjunction with the following embodiments.

[0020] Depend on Figures 1 to 5 As can be seen, the easy-to-assemble automotive oil filter described in this embodiment includes a bottom shell 1; the bottom shell 1 is provided with a receiving cavity 11; the top of the bottom shell 1 is provided with a receiving opening 12 communicating with the receiving cavity 11; The bottom of the accommodating cavity 11 is provided with a bottom cover 3; a valve port 31 is provided through the middle of the bottom cover 3; a valve core 4 is provided at the top of the valve port 31; and a spring 41 is provided at the top of the valve core 4. The accommodating cavity 11 is provided with a bracket and a support tube 6; the bracket includes a positioning part 51; support arms 52 extend downward on both sides of the positioning part 51; the support arms 52 are inclined to the positioning part 51; an elastic deformation part 53 is provided between the support arms 52 and the positioning part 51; the positioning part 51 is located at the top of the spring 41; the valve core 4 and the spring 41 are located between the two support arms 52. The positioning part 51, spring 41 and valve core 4 are all sleeved inside the support tube 6; the top of the support arm 52 abuts against the bottom of the support tube 6; the bottom of the support arm 52 abuts against the top of the bottom cover 3; the top of the support tube 6 is provided with a top cover 7; the top of the top cover 7 is provided with an oil inlet cover 8; the oil inlet cover 8 is engaged with the accommodating opening 12.

[0021] Specifically, in this embodiment, the easy-to-assemble automotive oil filter is assembled by first placing the bottom cover 3 at the bottom of the inner cavity 11 of the bottom shell 1, then placing the valve core 4 against the top of the valve port 31, then placing the spring 41 on top of the valve core 4, and then placing the positioning part 51 of the bracket on top of the spring 41, so that the valve core 4 and the spring 41 are placed between the two support arms 52. Next, the support tube 6 is sleeved over the positioning part 51, the spring 41 and the valve core 4, so that the bottom of the support tube 6 rests on the top of the support arm 52. Then, the top cover 7 is placed on top of the support tube 6, then the oil inlet cap 8 is placed on top of the top cover 7, and finally, the oil inlet cap 8 is pressed down until the oil inlet cap 8 is engaged with the accommodating opening 12, thereby completing the assembly of the automotive oil filter.

[0022] This embodiment forms a longitudinal support structure consisting of a bottom cover 3, a support arm 52, a support tube 6, a top cover 7, and an oil inlet cover 8. This ensures that the longitudinal position of each component is fixed within the accommodating cavity 11. In addition, the oil inlet cover 8 is snapped into the accommodating opening 12 without the need for welding or bolting. The snap-fit ​​structure enables rapid assembly and fixation, reducing production time and labor costs.

[0023] This embodiment describes an easy-to-assemble automotive oil filter. The bottom shell 1 includes a cylindrical portion 13 and a frustum portion 14 located at the bottom of the cylindrical portion 13. The radius of the inner wall of the cylindrical portion 13 is greater than the radius of the inner wall of the frustum portion 14. The accommodating opening 12 is located at the top of the cylindrical portion 13.

[0024] Specifically, in this embodiment, the cylindrical portion 13 has a larger inner radius, providing ample installation space for components such as the bracket, support tube 6, and top cover 7. It also adapts to the first arc-shaped abutment arm 32 of the bottom cover 3 and the second arc-shaped abutment arm 71 of the top cover 7, achieving radial positioning. Conversely, the frustum portion 14 has a smaller inner radius, providing a lower limit for the bottom cover 3 and preventing it from shifting downwards within the accommodating cavity 11. Furthermore, the conical structure of the frustum portion 14 disperses the force on the bottom of the base shell 1, improving overall compressive strength. This embodiment achieves layered positioning of each component through a structural design with different radii, preventing the bottom cover 3 from sliding downwards due to vibration.

[0025] The present embodiment describes an easy-to-assemble automotive oil filter, wherein the outer periphery of the bottom cover 3 is provided with a plurality of first arc-shaped abutment arms 32; the distance between the center of the bottom cover 3 and the first arc-shaped abutment arms 32 is the same as the radius of the inner wall of the cylindrical part 13.

[0026] Specifically, the radius of the first arc-shaped abutment arm 32 is consistent with the radius of the inner wall of the cylindrical part 13. During assembly, the first arc-shaped abutment arm 32 can fit tightly against the inner wall of the cylindrical part 13, forming a radial limit and restricting the rotation or displacement of the bottom cover 3 in the horizontal direction. Multiple first arc-shaped abutment arms 32 are evenly distributed (e.g., set at 90° intervals in the circumferential direction) to ensure that the bottom cover 3 is subjected to balanced force and avoid displacement caused by local gaps. Through the above settings, the bottom cover 3 and the bottom shell 1 are precisely coaxially positioned, ensuring the coaxiality of the valve port 31, valve core 4 and spring 41, and avoiding the valve port 31 from not sealing properly due to the displacement of the bottom cover 3. At the same time, the fitting design of the first arc-shaped abutment arm 32 does not require additional fixing structures, simplifying the assembly steps, and can buffer horizontal vibrations, improving the stability of the bottom cover 3.

[0027] The present embodiment describes an easy-to-assemble automotive oil filter, wherein the bottom cover 3 has a first inclined portion 33 on the outer periphery of the valve port 31; the bottom of the support arm 52 abuts against the top of the first inclined portion 33.

[0028] Specifically, the tilt angle of the first inclined part 33 is adapted to the tilt angle of the bottom of the support arm 52, which can increase the contact area between the two, disperse the pressure of the support arm 52 on the bottom cover 3, and avoid local stress concentration that could cause the bottom cover 3 or the support arm 52 to break; at the same time, the inclined surface can guide the installation direction of the support arm 52, ensuring that the support arm 52 is accurately abutted in the set position, and avoiding misalignment of the support arm 52 during assembly.

[0029] The present embodiment describes an easy-to-assemble automotive oil filter, wherein the support tube 6 is provided with a filter chamber 61; the positioning part 51, the spring 41 and the valve core 4 are all sleeved in the filter chamber 61; the support tube 6 is provided with a plurality of filter holes 62; and the outer wall of the support tube 6 is provided with a filter element 63.

[0030] Specifically, after the engine oil enters the accommodating cavity 11 through the oil inlet 81, it first passes through the filter element 63 on the outer wall of the support tube 6 to filter impurities, then enters the filter cavity 61 through the filter hole 62, and finally flows out from the oil outlet 82, thereby achieving the filtration of the engine oil.

[0031] This embodiment describes an easy-to-assemble automotive oil filter. The oil inlet cap 8 has an oil inlet 81 communicating with the receiving cavity 11; the oil inlet cap 8 has an oil outlet 82 in its middle. Specifically, the oil inlet 81 is located at the edge of the oil inlet cap 8 and communicates with the receiving cavity 11, ensuring that the engine oil can fully contact the filter element 63 on the outer wall of the support tube 6; the oil outlet 82 is located in the middle and corresponds to the filter cavity 61 of the support tube 6, so that the filtered engine oil can directly enter the oil outlet 82 from the filter cavity 61, avoiding unfiltered engine oil from short-circuiting into the oil outlet 82.

[0032] This embodiment describes an easy-to-assemble automotive oil filter. The top cover 7 has multiple second arc-shaped abutment arms 71 on its outer periphery. The distance between the center of the top cover 7 and the second arc-shaped abutment arms 71 is the same as the radius of the inner wall of the cylindrical portion 13. The top cover 7 has a through-hole 74 for accommodating the oil outlet 82. Specifically, the second arc-shaped abutment arms 71 and the inner wall of the cylindrical portion 13 are adapted to the same principle as the first arc-shaped abutment arms 32, achieving radial positioning of the top cover 7 and preventing horizontal offset. The through-hole 74 provides installation space for the oil outlet 82 of the oil inlet cap 8, ensuring that the oil outlet 82 can penetrate the top cover 7 and communicate with the filter chamber 61 without affecting oil flow.

[0033] This embodiment describes an easy-to-assemble automotive oil filter. The top cover 7 has a second inclined portion 72 on the outer periphery of the relief opening 74; the top of the support tube 6 abuts against the bottom of the second inclined portion 72. Specifically, the inclination angle of the second inclined portion 72 is adapted to the end face angle of the top of the support tube 6, forming a tightly fitting support surface, dispersing the pressure of the support tube 6 on the top cover 7, and guiding the support tube 6 to accurately abut against the bottom of the top cover 7, ensuring the coaxiality of the support tube 6 and the filter chamber 61, and preventing the support tube 6 from shifting.

[0034] This embodiment describes an easy-to-assemble automotive oil filter. The receiving opening 12 is provided with an arc-shaped anti-reflection strip 15. A groove 16 is formed between the arc-shaped anti-reflection strip 15 and the top of the cylindrical portion 13. An elastically deformable protrusion 83 is provided on the outer periphery of the oil inlet cap 8. The elastically deformable protrusion 83 engages with the groove 16. Specifically, during assembly, pressing down on the oil inlet cap 8 causes the elastically deformable protrusion 83 to contact the arc-shaped anti-reflection strip 15. The elastically deformable protrusion 83 undergoes elastic deformation under pressure, passing over the arc-shaped anti-reflection strip 15 and returning to its original shape, thus engaging in the groove 16. The arc-shaped surface of the arc-shaped anti-reflection strip 15 reduces the frictional resistance when the elastically deformable protrusion 83 slides, preventing breakage of the elastically deformable protrusion 83 during assembly.

[0035] This embodiment describes an easy-to-assemble automotive oil filter, in which a sealing ring 9 is provided between the receiving opening 12 and the oil inlet cap 8. This design improves the sealing performance of the automotive oil filter.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. An easy-to-assemble automotive oil filter, characterized in that: Includes a bottom shell (1); the bottom shell (1) has a receiving cavity (11) inside; the top of the bottom shell (1) has a receiving opening (12) communicating with the receiving cavity (11); The bottom of the accommodating cavity (11) is provided with a bottom cover (3); a valve port (31) is provided through the middle of the bottom cover (3); a valve core (4) is provided at the top of the valve port (31); a spring (41) is provided at the top of the valve core (4); The accommodating cavity (11) is provided with a bracket and a support tube (6); the bracket includes a positioning part (51); support arms (52) extend downward on both sides of the positioning part (51); the support arms (52) and the positioning part (51) are inclined; an elastic deformation part (53) is provided between the support arms (52) and the positioning part (51); the positioning part (51) is located at the top of the spring (41); the valve core (4) and the spring (41) are located between the two support arms (52); The positioning part (51), spring (41) and valve core (4) are all sleeved inside the support tube (6); the top of the support arm (52) abuts against the bottom of the support tube (6); the bottom of the support arm (52) abuts against the top of the bottom cover (3); the top of the support tube (6) is provided with a top cover (7); the top of the top cover (7) is provided with an oil inlet cover (8); the oil inlet cover (8) is engaged with the accommodating opening (12).

2. The automotive oil filter that is easy to assemble according to claim 1, characterized in that: The bottom shell (1) includes a cylindrical part (13) and a frustum part (14) located at the bottom of the cylindrical part (13); the radius of the inner wall of the cylindrical part (13) is greater than the radius of the inner wall of the frustum part (14); the accommodating opening (12) is located at the top of the cylindrical part (13).

3. The automotive oil filter that is easy to assemble according to claim 2, characterized in that: The outer periphery of the bottom cover (3) is provided with a plurality of first arc abutment arms (32); the distance between the center of the bottom cover (3) and the first arc abutment arm (32) is the same as the radius of the inner wall of the cylindrical part (13).

4. The automotive oil filter that is easy to assemble according to claim 2, characterized in that: The bottom cover (3) has a first inclined portion (33) on the outer periphery of the valve port (31); the bottom of the support arm (52) abuts against the top of the first inclined portion (33).

5. The automotive oil filter that is easy to assemble according to claim 2, characterized in that: The support tube (6) is provided with a filter chamber (61); the positioning part (51), spring (41) and valve core (4) are all sleeved in the filter chamber (61); the support tube (6) is provided with a plurality of filter holes (62); the outer wall of the support tube (6) is provided with a filter core (63).

6. The automotive oil filter that is easy to assemble according to claim 5, characterized in that: The oil inlet cap (8) is provided with an oil inlet (81) communicating with the accommodating cavity (11); the middle part of the oil inlet cap (8) is provided with an oil outlet (82).

7. The automotive oil filter that is easy to assemble according to claim 6, characterized in that: The top cover (7) has a plurality of second arc abutment arms (71) on its outer periphery; the distance between the center of the top cover (7) and the second arc abutment arms (71) is the same as the radius of the inner wall of the cylindrical part (13); the top cover (7) has a through-hole (74) for giving way to the oil port (82).

8. The automotive oil filter that is easy to assemble according to claim 7, characterized in that: The top cover (7) has a second inclined portion (72) on the outer periphery of the relief opening (74); the top of the support tube (6) abuts against the bottom of the second inclined portion (72).

9. The automotive oil filter that is easy to assemble according to claim 2, characterized in that: An arc-shaped fold strip (15) is provided at the accommodating opening (12); a groove (16) is formed between the arc-shaped fold strip (15) and the top of the cylindrical part (13); an elastic deformation protrusion (83) is provided on the outer periphery of the oil inlet cap (8); the elastic deformation protrusion (83) is engaged with the groove (16).

10. An easy-to-assemble automotive oil filter according to claim 1, characterized in that: A sealing ring (9) is provided between the accommodating opening (12) and the oil inlet cap (8).

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