Oil plug assembly

By designing a detachable magnetic suction mechanism and protective mechanism, the wear and suction impact caused by exposure of the oil plug magnetic suction parts is solved, as well as the problem of easy corrosion at the oil plug connection, and the effect of extending service life and improving sealing is achieved.

CN222596749UActive Publication Date: 2025-03-11LAIAN COUNTY MITSUBISHI HYDRAULIC PIPE FITTINGS CO LTD
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Patent Information

Application Number
CN202421348563.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-13
Publication Date
2025-03-11
Estimated Expiration
2034-06-13

AI Technical Summary

Technical Problem

When existing oil plugs are used, the magnetic suction piece is exposed to the outside and directly contacts with metal impurities, and the suction force is always inconvenient to thoroughly clean the impurities. At the same time, the connection between the oil plug and the oil tank is exposed to the outside and is easily corroded by air.

Method used

An oil plug assembly is designed, including a threaded tube, a rotating block and a removable magnetic suction mechanism. The magnetic suction mechanism protects the magnetic suction rod and cleans up impurities when needed through a combination of a magnetic suction rod and a protective cover; the protective mechanism protects the connection of the oil plug and improves sealing performance through a sealing cover and locking nut.

Benefits of technology

Through the design of the removable magnetic suction mechanism, the service life of the oil plug is extended, the wear caused by contact between the magnetic suction parts and metal impurities is avoided, and impurities are facilitated to be cleaned. The protective mechanism effectively avoids corrosion at the oil plug connection and improves the overall service life.

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Abstract

The utility model discloses an oil plug assembly, which relates to the technical field of oil plugs, and adopts the scheme that the oil plug assembly comprises a threaded pipe and is characterized in that the bottom end of the threaded pipe is fixedly connected with a rotating block, a detachable magnetic attraction mechanism is mounted in the threaded pipe, and a protection mechanism is mounted on the lower surface of the rotating block; by means of the detachable magnetic attraction mechanism, the protective cover is taken down, at the moment, metal impurities adsorbed on the protective cover lose adsorption force and can automatically fall down, thorough cleaning can be conducted, the protective cover can protect the magnetic attraction rod, the service life is prolonged, and the protective cover can be used for protecting the magnetic attraction rod. By means of the structure, the joint of the oil plug and the oil tank can be sealed and protected, so that air corrosion is avoided, the service life is prolonged, the oil plug can be fixed through the regular hexagon groove by means of an external tool when the locking nut is rotated, the oil plug cannot be driven, the oil plug is prevented from being damaged, and the service life is further prolonged.
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Description

Technical Field

[0001] The utility model relates to the technical field of oil plugs, in particular to an oil plug assembly. Background Art

[0002] The oil plug is a fastener, commonly known as an oil plug and an oil plug head, and is often used in aerospace, aviation, navigation departments, and automobile, locomotive, and motorcycle manufacturing. For example, the oil tank seal of the engine oil pan of a car, locomotive, or motorcycle, or other equipment. After searching, the Chinese patent publication number CN216518919U discloses an oil plug assembly for sealing the oil filling hole of a hydraulic tool oil bag, including: an oil plug column, used to seal the oil filling hole; and a handle, which is installed at the rear end of the oil plug column for hand-holding; wherein the front end outer wall of the oil plug column is formed with a boss 1; when the oil plug column is inserted into the oil filling hole, the boss 1 is used to clamp the inner wall of the oil bag. The utility model solves the problem that the oil plug is easy to detach from the oil filling hole and cause leakage in the existing design by separating the oil plug column and the handle, and forming a boss 1 on the oil plug column at the same time, and using the boss 1 to clamp the inner wall of the oil bag.

[0003] Although the above technical solution can solve the problem of the oil plug being easily separated from the oil filling hole and causing leakage in the existing design, in actual use, the magnetic suction part is exposed to the outside and directly contacts with metal impurities, which can easily cause wear. When cleaning the metal impurities, the suction force always exists, which makes it inconvenient to thoroughly clean the impurities. In addition, when in use, the connection between the oil plug and the oil tank is exposed to the outside and is easily corroded by the air. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an oil plug assembly, which solves the problems raised in the background technology.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: an oil plug assembly, including a threaded pipe, characterized in that: a rotating block is fixedly connected to the bottom end of the threaded pipe, a detachable magnetic attraction mechanism is installed inside the threaded pipe, and a protective mechanism is installed on the lower surface of the rotating block;

[0006] The detachable magnetic attraction mechanism comprises a magnetic attraction rod placed inside the threaded tube, and the bottom end of the magnetic attraction rod is connected to the internal thread of the rotating block.

[0007] Preferably, a mounting hole is provided at the center of the upper surface of the rotating block, and the bottom end of the magnetic attraction rod is connected to the inner thread of the mounting hole, so as to facilitate the installation and removal of the magnetic attraction rod.

[0008] Preferably, a protective cover is provided on the outer surface of the magnetic rod, a threaded ring is fixedly connected to the upper surface of the rotating block, and the bottom end of the protective cover is threadedly connected to the inner wall of the threaded ring, so as to protect the magnetic rod and clean up the adsorbed impurities.

[0009] Preferably, the protective mechanism includes a connecting column fixedly connected to the center position of the lower surface of the rotating block, the outer surface of the connecting column is sealingly and slidingly connected to a sealing cover, and the outer surface of the bottom end of the connecting column is threadedly connected to a locking nut, which can seal and protect the connection of the oil plug to prevent corrosion.

[0010] Preferably, a hexagonal groove is formed on the lower surface of the connecting column, and a sealing gasket is fixedly connected to the upper surface of the sealing cover, so as to improve the sealing performance.

[0011] Preferably, the threaded tube and the rotating block are an integrally formed structure, and the top view shape of the rotating block is a regular hexagon, which is convenient for rotating the oil plug.

[0012] The utility model provides an oil plug assembly, which has the following beneficial effects:

[0013] 1. The oil plug assembly can remove the protective cover by means of a detachable magnetic suction mechanism. At this time, the metal impurities adsorbed on the protective cover will lose their adsorption force and automatically fall down, so that they can be thoroughly cleaned. In addition, the protective cover can be protected by a magnetic suction rod to extend its service life, thereby solving the problem that the existing oil plug magnetic suction parts are exposed to the outside and directly contact with metal impurities, which is easy to cause wear and the suction force always exists, making it inconvenient to thoroughly clean the impurities.

[0014] 2. This oil plug assembly can seal and protect the connection between the oil plug and the oil tank through the protective mechanism, thereby avoiding corrosion by the air and increasing the service life. The regular hexagonal groove can be used to fix the oil plug with the help of external tools when turning the locking nut, so that it will not be driven, thereby avoiding damage to the oil plug and further increasing the service life, thereby solving the problem that the connection between the existing oil plug and the oil tank is exposed to the outside and is prone to corrosion. 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 partial structural schematic diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0018] In the figure, 1, threaded tube; 2, rotating block; 3, detachable magnetic attraction mechanism; 31, magnetic attraction rod; 32, mounting hole; 33, protective cover; 34, threaded ring; 4, protective mechanism; 41, connecting column; 42, sealing cover; 43, locking nut; 44, hexagonal groove; 45, sealing gasket. DETAILED DESCRIPTION

[0019] 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.

[0020] Embodiment 1:

[0021] like Figures 1 to 3 As shown, an oil plug assembly includes a threaded tube 1, the bottom end of which is fixedly connected to a rotating block 2, the threaded tube 1 and the rotating block 2 are an integrally formed structure, and the top view shape of the rotating block 2 is a regular hexagon. A detachable magnetic attraction mechanism 3 is installed inside the threaded tube 1, and the detachable magnetic attraction mechanism 3 includes a magnetic attraction rod 31 placed inside the threaded tube 1, and the bottom end of the magnetic attraction rod 31 is connected to the internal thread of the rotating block 2. A mounting hole 32 is provided at the center position of the upper surface of the rotating block 2, and the bottom end of the magnetic attraction rod 31 is connected to the internal thread of the mounting hole 32. A protective cover 33 is provided on the outer surface of the magnetic attraction rod 31, and a threaded ring 34 is fixedly connected to the upper surface of the rotating block 2, and the bottom end of the protective cover 33 is threadedly connected to the inner wall of the threaded ring 34.

[0022] When in use, the adsorption force generated by the magnetic rod 31 will adsorb metal impurities on the protective cover 33. When the impurities need to be cleaned, the protective cover 33 only needs to be rotated to remove the protective cover 33. At this time, the metal impurities adsorbed on the protective cover 33 will lose the adsorption force and will automatically fall down, so that they can be thoroughly cleaned. In addition, the protective cover 33 can be protected by the magnetic rod 31 to extend its service life, thereby solving the problem that the existing oil plug magnetic suction parts are exposed to the outside and directly contact with metal impurities, which is easy to cause wear and the suction force always exists, making it inconvenient to thoroughly clean the impurities.

[0023] Embodiment 2:

[0024] like Figures 1 to 3 As shown, a protective mechanism 4 is installed on the lower surface of the rotating block 2, and the protective mechanism 4 includes a connecting column 41 fixedly connected to the center of the lower surface of the rotating block 2, a sealing cover 42 is sealingly and slidably connected to the outer surface of the connecting column 41, and a locking nut 43 is threadedly connected to the outer surface of the bottom end of the connecting column 41. A hexagonal groove 44 is opened on the lower surface of the connecting column 41, and a sealing gasket 45 is fixedly connected to the upper surface of the sealing cover 42.

[0025] The sealing cover 42 is installed on the outside of the oil plug through the locking nut 43, and is in contact with the surface of the oil tank through the sealing gasket 45, so that the connection between the oil plug and the oil tank can be sealed and protected, thereby avoiding corrosion by the air and increasing the service life. In addition, the regular hexagonal groove 44 can be used to fix the oil plug with the help of external tools when rotating the locking nut 43, so that it will not be moved, thereby avoiding damage to the oil plug and further increasing the service life, thereby solving the problem that the connection between the existing oil plug and the oil tank is exposed to the outside and is prone to corrosion.

[0026] Working principle: When in use, the adsorption force generated by the magnetic rod 31 will adsorb metal impurities on the protective cover 33. When the impurities need to be cleaned, the protective cover 33 only needs to be rotated to remove the protective cover 33. At this time, the metal impurities adsorbed on the protective cover 33 will lose the adsorption force and will automatically fall down, so that they can be thoroughly cleaned. The protective cover 33 can be protected by the magnetic rod 31 to extend its service life, thereby solving the problem that the existing oil plug magnetic suction parts are exposed to the outside and directly contact with metal impurities, which is easy to cause wear and the suction force always exists, making it inconvenient to thoroughly clean the impurities.

[0027] The sealing cover 42 is installed on the outside of the oil plug through the locking nut 43, and is in contact with the surface of the oil tank through the sealing gasket 45, so that the connection between the oil plug and the oil tank can be sealed and protected, thereby avoiding corrosion by the air and increasing the service life. In addition, the regular hexagonal groove 44 can be used to fix the oil plug with the help of external tools when rotating the locking nut 43, so that it will not be moved, thereby avoiding damage to the oil plug and further increasing the service life, thereby solving the problem that the connection between the existing oil plug and the oil tank is exposed to the outside and is prone to corrosion.

[0028] 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.

[0029] 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. An oil plug assembly, comprising a threaded tube (1), characterized in that: The bottom end of the threaded tube (1) is fixedly connected to a rotating block (2), a detachable magnetic attraction mechanism (3) is installed inside the threaded tube (1), and a protective mechanism (4) is installed on the lower surface of the rotating block (2); The detachable magnetic attraction mechanism (3) comprises a magnetic attraction rod (31) placed inside the threaded tube (1), and the bottom end of the magnetic attraction rod (31) is connected to the internal thread of the rotating block (2).

2. The oil plug assembly according to claim 1, characterized in that: A mounting hole (32) is provided at the center of the upper surface of the rotating block (2), and the bottom end of the magnetic attraction rod (31) is connected to the inner thread of the mounting hole (32).

3. An oil plug assembly according to claim 2, characterized in that: The outer surface of the magnetic rod (31) is sleeved with a protective cover (33), the upper surface of the rotating block (2) is fixedly connected with a threaded ring (34), and the bottom end of the protective cover (33) is threadedly connected to the inner wall of the threaded ring (34).

4. The oil plug assembly according to claim 1, characterized in that: The protection mechanism (4) comprises a connecting column (41) fixedly connected to the center position of the lower surface of the rotating block (2), the outer surface of the connecting column (41) is sealingly slidably connected to a sealing cover (42), and the outer surface of the bottom end of the connecting column (41) is threadedly connected to a locking nut (43).

5. An oil plug assembly according to claim 4, characterized in that: A hexagonal groove (44) is formed on the lower surface of the connecting column (41), and a sealing gasket (45) is fixedly connected to the upper surface of the sealing cover (42).

6. The oil plug assembly according to claim 1, characterized in that: The threaded tube (1) and the rotating block (2) are an integrally formed structure, and the shape of the rotating block (2) when viewed from above is a regular hexagon.

Citation Information

Patent Citations

  • Oil plug assembly

    CN216518919U