Engine oil extraction mechanism for automobile maintenance

Abstract

The utility model relates to the technical field of automobile maintenance, in particular to an engine oil extraction mechanism for automobile maintenance. The device comprises a horizontally-arranged cylinder, clamping plates are vertically arranged on the side walls of the left end and the right end of the cylinder respectively, the left end and the right end of a lifting handle are connected with the clamping plates on the corresponding sides respectively, a liquid extraction opening is formed in the middle of the side wall of the front side of the cylinder, a liquid extraction cover covers the liquid extraction opening of the cylinder, and a liquid extraction pipe is arranged in the middle of a shell of the liquid extraction cover in a communicating mode. The device is reasonable in structural design, convenient to operate, time-saving and labor-saving, adopts hand-operated extraction operation, enables a vehicle owner to smoothly extract engine oil independently without lifting the vehicle, is green, energy-saving and emission-reducing, can adjust an extraction point position, is suitable for different engine oil pans, effectively reduces the residual oil quantity in the engine oil pans, does not damage a chassis protection plate and a gasket, and improves the production efficiency. And the risk of oil leakage is avoided, the daily requirement of a vehicle owner for vehicle maintenance can be met, and the problems existing in the prior art are solved.

Description

Technical Field

[0001] This utility model relates to the field of automotive maintenance technology, and in particular to an oil extraction mechanism for automotive repair. Background Technology

[0002] During car maintenance, engine oil changes are mostly done by gravity, where mechanics crawl under the car, loosen the drain plug, and let the old oil drain slowly. While simple and direct, this method has several drawbacks: First, the vehicle can only be lifted using specialized lifting tools in the repair shop, preventing car owners from changing the oil themselves. Second, the design of the engine oil pan varies between vehicles; for example, some cars have the drain plug not at the lowest point or have an internal baffle, which can actually lead to more old oil residue. Third, some cars have particularly difficult-to-remove underbody protection plates; the bolts may be rusted and stuck, or even awkwardly positioned, making the process time-consuming and laborious. Furthermore, each removal of the drain plug can damage the gasket, increasing the risk of leaks. Clearly, gravity oil changes are not user-friendly and cannot meet the needs of car owners who wish to change their own oil. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, this utility model provides an automotive oil extraction mechanism. It features a reasonable structural design, convenient operation, and saves time and effort. Using a hand-crank extraction method, car owners can easily extract the oil independently without raising the vehicle. This is green, energy-saving, and emission-reducing. Furthermore, the extraction point can be adjusted to suit different engine oil pans, effectively reducing the amount of residual oil in the engine oil pan. Simultaneously, it does not damage the chassis guard plate or gaskets, avoiding the risk of oil leaks. It can meet the daily vehicle maintenance needs of car owners and solves the problems existing in existing technologies.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0005] An automotive oil extraction mechanism includes a horizontally positioned cylinder with vertically mounted clamps on its left and right side walls. A handle is connected to the corresponding clamps on either side. A suction port is located in the middle of the front side wall of the cylinder, and a suction hood covers the suction port. A suction pipe is connected to the middle of the outer shell of the suction hood. A discharge port is located in the middle of the lower side wall of the cylinder, and a discharge hood covers the discharge port. A discharge pipe is connected to the middle of the outer shell of the discharge hood. A single... The valve has a first-order circular groove symmetrically arranged on the inner wall of both ends of the cylinder. The center of the first-order circular groove is located below the center of the cylinder. A rotating core is horizontally arranged inside the cylinder. The left and right ends of the rotating core are movably engaged in the first-order circular groove on the corresponding side. Several slots are evenly spaced horizontally along the circumference of the rotating core's side wall. Each slot is equipped with a sealing component that abuts against the inner wall of the cylinder. A rotating shaft is horizontally arranged in the center of the left side wall of the rotating core. The outer end of the rotating shaft moves through the left side wall of the cylinder and is connected to a rocker arm.

[0006] Optionally, the sealing assembly includes a sealing strip that is movably engaged in the slot. The inner walls of the left and right ends of the slot are flush with the inner wall of the corresponding end of the cylinder. Several telescopic grooves are spaced apart in the slot along the horizontal direction. The axis of each telescopic groove is perpendicular to the axis of the rotating core. At the bottom of the sealing strip corresponding to each telescopic groove, a telescopic rod is provided to cooperate with it. A return spring is provided on each telescopic rod. The upper end of the return spring abuts against the bottom of the sealing strip, and the lower end abuts against the inner wall of the slot.

[0007] Optionally, guide plates that abut against the card slot are provided at the left and right ends of the bottom of the sealing strip.

[0008] Optionally, a first-stage sealing ring is provided at each of the left and right ends of the rotating core to cooperate with the first-stage circular groove on the corresponding side.

[0009] Optionally, two first-order circular grooves are symmetrically arranged in the same direction of the two first-order circular grooves, and a disc is provided at each of the left and right ends of the rotating core, which is engaged in the corresponding second-order circular groove. The rotating shaft is located at the center of the disc on the left side.

[0010] Optionally, two-stage sealing rings are provided on each of the two disks to mate with the corresponding two-stage circular grooves on one side.

[0011] The advantages of this utility model using the above-mentioned technical solution are: reasonable structural design, convenient operation, time and labor saving, and the use of hand-cranked extraction operation, which allows car owners to easily extract the engine oil without raising the vehicle, making it green, energy-saving and emission-reducing. In addition, the extraction point can be adjusted to suit different engine oil pans, effectively reducing the amount of residual oil in the engine oil pan. At the same time, it will not damage the chassis guard plate and gasket, avoiding the risk of oil leakage, and can meet the daily vehicle maintenance needs of car owners. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 for Figure 1 A top-view structural diagram;

[0014] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the middle AA direction;

[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of a cylinder;

[0016] Figure 5 A three-dimensional structural diagram of the rotating core and rocker arm;

[0017] Figure 6 A three-dimensional structural diagram of the sealing strip and telescopic rod;

[0018] In the diagram, 1. cylinder; 2. clamping plate; 3. lifting handle; 4. suction port; 5. suction hood; 6. suction pipe; 7. drain port; 8. drain hood; 9. drain pipe; 10. one-way valve; 11. first-stage circular groove; 12. rotating core; 13. slot; 14. rotating shaft; 15. rocker arm; 16. sealing strip; 17. telescopic groove; 18. telescopic rod; 19. return spring; 20. guide plate; 21. first-stage sealing ring; 22. second-stage circular groove; 23. disc; 24. second-stage sealing ring. Detailed Implementation

[0019] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application; however, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0020] Furthermore, it should be understood in the description of this application that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation on this application. In addition, 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 one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0022] like Figure 1-6As shown in this embodiment, an automotive oil extraction mechanism includes a horizontally arranged cylinder 1. Clamping plates 2 are vertically arranged on the side walls at both ends of the cylinder 1. A lifting handle 3 is connected to the clamping plate 2 on the corresponding side at both ends. A suction port 4 is provided in the middle of the front side wall of the cylinder 1. A suction cover 5 is provided over the suction port 4 of the cylinder 1. A suction pipe 6 is connected to the middle of the outer shell of the suction cover 5. A drain port 7 is provided in the middle of the lower side wall of the cylinder 1. A drain cover 8 is provided over the drain port 7 of the cylinder 1. A drain pipe 9 is connected to the middle of the outer shell of the drain cover 8. A one-way valve is provided on the drain pipe 9. Valve 10; A first-order circular groove 11 is symmetrically provided on the inner wall of the left and right ends of the cylinder 1, and the center point of the first-order circular groove 11 is located below the center point of the cylinder 1. A rotating core 12 is horizontally provided inside the cylinder 1, and the left and right ends of the rotating core 12 are movably engaged in the first-order circular groove 11 on the corresponding side. Several slots 13 are horizontally and evenly spaced along the circumference of the side wall of the rotating core 12, and a sealing component is provided in each slot 13 to abut against the inner wall of the cylinder 1. A rotating shaft 14 is horizontally provided in the center of the left side wall of the rotating core 12, and the outer end of the rotating shaft 14 moves through the left side wall of the cylinder 1 and is connected to the rocker arm 15.

[0023] Optionally, the sealing assembly includes a sealing strip 16 that is movably engaged in the slot 13. The inner walls of the left and right ends of the slot 13 are flush with the inner walls of the corresponding ends of the cylinder 1. Several telescopic grooves 17 are provided at intervals along the horizontal direction in the slot 13. The axis of each telescopic groove 17 is perpendicular to the axis of the rotating core 12. At the bottom of the sealing strip 16 corresponding to each telescopic groove 17, a telescopic rod 18 is provided to cooperate with it. A return spring 19 is provided on each telescopic rod 18. The upper end of the return spring 19 abuts against the bottom of the sealing strip 16, and its lower end abuts against the inner wall of the slot 13.

[0024] Optionally, guide plates 20 are provided at the left and right ends of the bottom of the sealing strip 16, which abut against the groove 13. The two guide plates 20 can guide the movement direction of the sealing strip 16, making it easy to move back and forth smoothly in the corresponding groove 13.

[0025] Optionally, a first-stage sealing ring 21 is provided at each of the left and right ends of the rotating core 12 to cooperate with the first-stage circular groove 11 on the corresponding side. The two first-stage sealing rings 21 can improve the sealing effect inside the cylinder 1 and improve the oil pumping efficiency.

[0026] Optionally, two second-order circular grooves 22 are symmetrically arranged in the same direction within the two first-order circular grooves 11. A disc 23 is provided at each of the left and right ends of the rotating core 12, respectively, and is engaged with the corresponding second-order circular groove 22. The rotating shaft 14 is positioned at the center of the left disc 23. The two discs 23 further improve the stability of the rotation of the rotating core 12 and further limit its position.

[0027] Optionally, two secondary sealing rings 24 are provided on each of the two discs 23 to mate with the secondary circular grooves 22 on the corresponding side. The two secondary sealing rings 24 can improve the sealing effect inside the cylinder 1 and improve the oil extraction efficiency.

[0028] Before using this device, the hoses need to be installed on the suction pipe 6 and the drain pipe 9 respectively. The hose installed on the suction pipe 6 should be inserted into the vehicle's oil filler neck, ensuring it reaches the bottom. Then, the hose installed on the drain pipe 9 should be connected to the waste oil collection container. In use, hold the lifting handle 3 with one hand and crank the rocker arm 15 with the other to rotate it. This rotates the rotating core 12 via the rotating shaft 14. Because the rotating core 12 is eccentrically positioned inside the cylinder 1, it rapidly pulls the air in the suction port 4 during rotation. This air is compressed during the transfer process through the two adjacent sealing strips 16. When transferred to the drain port 7, it is forced into the drain cover 8 and discharged outwards through the one-way valve 10. During this process, the sealing strips 16, under the force of the corresponding return spring 19, remain firmly pressed against the inner wall of the cylinder 1, thus forming a sealed space for the air and allowing it to be transferred. As air is continuously extracted from the suction pipe 6, the lubricating oil is smoothly drawn out. Finally, the lubricating oil is successfully extracted and collected in a collection container via a hose. During this process, the suction position can be changed by pulling the hose, allowing for the use of different oil pans. Its reasonable structural design makes it easy to operate, saving time and effort. The hand-cranked extraction method allows car owners to easily extract the oil without raising the vehicle, resulting in green energy saving and emission reduction. Furthermore, the extraction point can be adjusted to suit different engine oil pans, effectively reducing the amount of residual oil in the engine oil pan. Simultaneously, it does not damage the chassis guard plate and gaskets, avoiding the risk of oil leaks. It meets the daily vehicle maintenance needs of car owners and solves the problems existing in current technologies.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model. For those skilled in the art, any alternative improvements or transformations made to the implementation of this utility model fall within the protection scope of this utility model.

[0030] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. An oil extraction mechanism for automobile repair, characterized in that, The device includes a horizontally positioned cylinder with vertical clamps on its left and right side walls. A lifting handle has its left and right ends connected to the corresponding clamps on either side. A suction port is located in the middle of the front side wall of the cylinder, and a suction hood covers the suction port. A suction pipe is connected to the middle of the outer shell of the suction hood. A discharge port is located in the middle of the lower side wall of the cylinder, and a discharge hood covers the discharge port. A discharge pipe is connected to the middle of the outer shell of the discharge hood, and a one-way valve is installed on the discharge pipe. On the left side of the cylinder… A first-order circular groove is symmetrically provided on the inner wall of each of the two ends of the cylinder. The center point of the first-order circular groove is located below the center point of the cylinder. A rotating core is horizontally provided inside the cylinder. The left and right ends of the rotating core are movably engaged in the first-order circular groove on the corresponding side. Several slots are horizontally and evenly spaced along the circumference of the rotating core. Each slot is provided with a sealing component that abuts against the inner wall of the cylinder. A rotating shaft is horizontally provided in the center of the left side wall of the rotating core. The outer end of the rotating shaft moves through the left side wall of the cylinder and is connected to the rocker arm.

2. The automotive oil extraction mechanism according to claim 1, characterized in that, The sealing assembly includes a sealing strip that is movably engaged in a slot. The inner walls of the left and right ends of the slot are flush with the inner walls of the corresponding ends of the cylinder. Several telescopic grooves are spaced apart in the slot along the horizontal direction. The axis of each telescopic groove is perpendicular to the axis of the rotating core. At the bottom of the sealing strip corresponding to each telescopic groove, a telescopic rod is provided to cooperate with it. A return spring is provided on each telescopic rod. The upper end of the return spring abuts against the bottom of the sealing strip, and the lower end abuts against the inner wall of the slot.

3. The automotive oil extraction mechanism according to claim 2, characterized in that, Guide plates that abut against the card slot are provided at the left and right ends of the bottom of the sealing strip.

4. The automotive oil extraction mechanism according to claim 1, characterized in that, A first-stage sealing ring is provided at each of the left and right ends of the rotating core to cooperate with the first-stage circular groove on the corresponding side.

5. The automotive oil extraction mechanism according to claim 1, characterized in that, Two first-order circular grooves are symmetrically arranged in the same direction of the center in the two first-order circular grooves. At the left and right ends of the rotating core, there are discs that are locked in the corresponding second-order circular grooves on one side. The rotating shaft is located in the center of the disc on the left side.

6. The automotive oil extraction mechanism according to claim 5, characterized in that, Two secondary sealing rings are provided on each of the two discs to mate with the secondary circular grooves on the corresponding side.

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