Oil cup detachable oil mist sprayer

By introducing externally threaded metal rings, sealing rubber rings, and elastic metal rings into the oil mist lubricator, combined with magnetic attraction and threaded connection, the problem of insufficient sealing between the oil cup and the valve body is solved, achieving stable sealing and anti-loosening effect for the oil mist lubricator with easy-to-disassemble oil cup.

CN224534008UActive Publication Date: 2026-07-21NINGBO FLEHO AUTOMATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO FLEHO AUTOMATION TECH CO LTD
Filing Date
2025-10-30
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing oil mist lubricators, the seal between the oil cup and the valve body is insufficient, which can easily lead to seal failure due to installation deviation or vibration, resulting in oil leakage and affecting the lubrication effect.

Method used

It adopts a structure consisting of an external threaded metal ring, a sealing rubber ring, an elastic metal ring, an embedded rubber ring, and a plastic protective cover. Combined with magnetic attraction and threaded connection, it forms a multi-seal mechanism to enhance the installation sealing and stability of the oil cup and valve body.

Benefits of technology

This improves the sealing and stability between the oil cup and the valve body, prevents oil leakage, and ensures the continuity and reliability of lubrication.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of oil cup easy disassembly type oil mist generator, including oil mist generator upper valve body, oil storage cup and plastic protective cover, oil mist generator upper valve body lower end is fixed with outer screw metal ring, first magnet ring is fixed with the edge of outer screw metal ring lower end by epoxy resin glue sticking, sealing rubber ring is fixed with the inner wall of outer screw metal ring, inner ring groove is opened in sealing rubber ring, and elastic metal ring piece is arranged in the inside outside of inner ring groove, the design solves the problem that original oil mist generator only relies on one plane sealing ring sealing between oil cup and valve body, sealing effect is limited, and the general problem of protection, the utility model utilizes the pressure inside oil cup, carries out elastic top card sealing, and then cooperates external protection and anti-loose push, guarantees the installation sealing property and stability between oil cup and valve body.
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Description

Technical Field

[0001] This utility model is an oil mist lubricator with a detachable oil cup, belonging to the field of oil mist lubricator technology. Background Technology

[0002] An oil mist lubricator is an indispensable lubrication component in pneumatic systems. It atomizes lubricating oil and injects it into compressed air to lubricate pneumatic components. Currently known oil mist lubricators typically consist of an upper valve body and an oil reservoir. The oil reservoir stores the lubricating oil and usually contains an oil suction pipe and a one-way valve. The reservoir is generally a fixed design, secured to the upper valve body by threads or clips. The reservoir is typically made of transparent material for easy observation of the oil level.

[0003] However, the oil cup and valve body are only sealed by a flat sealing ring. If the installation is slightly deviated due to external influences, the sealing ring may not be properly tightened. Moreover, during long-term installation and use, it is also prone to seal failure due to vibration, resulting in oil leakage and affecting the lubrication effect. There is an urgent need for an oil mist lubricator with a removable oil cup to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an oil mist lubricator with a removable oil cup, thereby solving the problems mentioned in the background art. This utility model utilizes the internal pressure of the oil cup for elastic top-clamp sealing, combined with external protection and anti-loosening push-top, to ensure the installation sealing and stability between the oil cup and the valve body.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a detachable oil mist lubricator, comprising an upper valve body, an oil reservoir, and a plastic protective cover. An externally threaded metal ring is fixed to the lower end of the upper valve body. A first magnetic ring is bonded to the lower edge of the externally threaded metal ring via epoxy resin. A sealing rubber ring is bonded to the inner wall of the externally threaded metal ring. An inner ring groove is formed within the sealing rubber ring. An elastic metal ring is provided on the outer side of the inner ring groove. An embedded rubber ring is provided on the inner side of the inner ring groove. A connecting rubber ring is provided at the upper end of the oil reservoir. An elastic groove is formed on the outer side of the connecting rubber ring. The oil reservoir is damped and snapped into the externally threaded metal ring. An internally threaded thread is provided at the upper end of the plastic protective cover. A second magnetic ring is provided below the internally threaded thread. A spring mounting ring is fixed to the lower end of the plastic protective cover. Multiple return springs are longitudinally mounted on the upper end of the spring mounting ring. Spring push rings are horizontally mounted on the upper ends of the multiple return springs.

[0006] Furthermore, an oil mist port is provided through the valve body side surface of the oil mist lubricator, and an oil suction pipe is longitudinally installed at the lower end of the valve body of the oil mist lubricator, which is inserted into the oil storage cup.

[0007] Furthermore, the elastic metal ring abuts against the embedded rubber ring.

[0008] Furthermore, the sealing rubber ring is engaged in the elastic groove.

[0009] Furthermore, the plastic protective cover is installed outside the outer screw metal ring and the oil reservoir, and the inner screw thread is screwed into the outer screw metal ring through the thread. The second magnetic ring and the first magnetic ring are fixed by magnetic attraction.

[0010] Furthermore, the spring push ring elastically abuts against the lower end face of the oil reservoir.

[0011] Furthermore, the outer side of the plastic protective cover has multiple strip-shaped waist holes.

[0012] The beneficial effects of this utility model are as follows: This utility model provides a convenient oil cup detachable oil mist lubricator. Because it incorporates an external threaded metal ring, a first magnetic ring, a sealing rubber ring, an embedded rubber ring, an elastic metal ring, a connecting rubber ring, an elastic groove, a plastic protective cover, internal threads, a second magnetic ring, a spring mounting ring, a return spring, and a spring push ring, its structure is reasonable. It utilizes the internal pressure of the oil cup for elastic top-clamp sealing, and combined with external protection and anti-loosening push-top, it ensures the sealing and stability of the installation between the oil cup and the valve body, making it highly practical. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the structure of an oil mist lubricator with a detachable oil cup according to the present invention;

[0015] Figure 2 This is a schematic diagram of the disassembled structure of an oil cup-type oil mist lubricator according to the present invention;

[0016] Figure 3 This is a schematic diagram of the reset spring distribution structure of a removable oil mist lubricator with an oil cup according to the present invention;

[0017] Figure 4 This is a schematic diagram of the internal structure of the external screw metal ring of an oil cup detachable oil mist lubricator according to this utility model;

[0018] Figure 5 This is a schematic diagram of the half-section structure of the sealing rubber ring of a detachable oil mist lubricator according to the present invention.

[0019] In the diagram: 1-Oil mist lubricator upper valve body, 2-Oil mist port, 3-Oil suction pipe, 4-External threaded metal ring, 5-First magnet ring, 6-Inner ring groove, 7-Sealing rubber ring, 8-Embedded rubber ring, 9-Elastic metal ring plate, 10-Oil reservoir cup, 11-Connecting rubber ring, 12-Elastic groove, 13-Plastic protective cover, 14-Strip-shaped waist hole, 15-Internal thread, 16-Second magnet ring, 17-Spring mounting ring, 18-Reset spring, 19-Spring push ring. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please see Figures 1-5 This utility model provides a technical solution: a detachable oil mist lubricator, including an upper valve body 1, an oil reservoir 10, and a plastic protective cover 13. An externally threaded metal ring 4 is fixed to the lower end of the upper valve body 1. A first magnetic ring 5 is glued to the lower edge of the externally threaded metal ring 4 with epoxy resin. A sealing rubber ring 7 is glued to the inner wall of the externally threaded metal ring 4. An inner ring groove 6 is formed inside the sealing rubber ring 7. An elastic metal ring 9 is provided on the outer side of the inner ring groove 6. An embedded rubber ring 8 is provided on the inner side of the inner ring groove 6. A connecting rubber ring 11 is provided at the upper end of the oil reservoir 10. An elastic groove 12 is provided on the outer side of the rubber ring 11. The oil cup 10 is damped and inserted into the outer screw metal ring 4. The upper end of the plastic protective cover 13 is provided with an internal thread 15. The lower side of the internal thread 15 is provided with a second magnet ring 16. The lower end of the plastic protective cover 13 is fixed with a spring mounting ring 17. Multiple return springs 18 are longitudinally installed on the upper end of the spring mounting ring 17. A spring push ring 19 is horizontally installed on the upper end of the multiple return springs 18. This design solves the problem that the oil cup and valve body in the original oil mist lubricator are only sealed by a single flat sealing ring, which has limited sealing effect and general protection.

[0022] As the first embodiment of this utility model: an oil mist port 2 is provided through the side surface of the upper valve body 1 of the oil mist lubricator. An oil suction pipe 3 is installed longitudinally at the lower end of the upper valve body 1 of the oil mist lubricator. The oil suction pipe 3 is inserted into the oil storage cup 10. The upper valve body 1 of the oil mist lubricator is the core functional component. The side surface of the upper valve body 1 of the oil mist lubricator is provided with an oil mist port 2, and the lower end is installed with an oil suction pipe 3 longitudinally. An externally threaded metal ring 4 is fixed at the lower end of the upper valve body 1 of the oil mist lubricator. This ring forms the basis for connecting with the components below. An elastic metal ring 9 abuts against the embedded rubber ring 8. A sealing rubber ring 7 is engaged in the elastic groove 12. By adding the elastic metal ring 9 and abutting against the embedded rubber ring 8, the sealing rubber ring 7 is engaged in the elastic groove 12. The sealing rubber ring 7 can provide a continuous thrust to its inner side, ensuring the stability of the sealing rubber ring 7 engaged in the elastic groove 12.

[0023] The plastic protective cover 13 is installed over the outer screw-on metal ring 4 and the oil reservoir 10, and the inner screw thread 15 is screwed into the outer screw-on metal ring 4. The second magnetic ring 16 and the first magnetic ring 5 are magnetically attracted and fixed together. The addition of the plastic protective cover 13 over the outer screw-on metal ring 4 and the oil reservoir 10 can protect the oil reservoir 10. The inner screw thread 15 is screwed into the outer screw-on metal ring 4, and the second magnetic ring 16 and the first magnetic ring 5 are magnetically attracted and fixed together. This can realize the protective installation of the plastic protective cover 13. At the same time, this dual connection of thread and magnetism ensures the convenience and firmness of the installation of the plastic protective cover 13.

[0024] The spring push ring 19 elastically abuts against the lower end face of the oil reservoir 10. After the protective cover is installed in place, the spring push ring 19, under the preload of the return spring 18, continuously and elastically pushes upward against the lower end face of the oil reservoir 10. The continuous upward thrust provided by the spring push ring 19 can effectively counteract the vibration that may occur during system operation, preventing the oil reservoir 10 from undergoing slight downward displacement due to vibration, thereby avoiding loosening of the main sealing connection and ensuring the long-term stability of the seal. Multiple strip-shaped holes 14 are provided on the outer side of the plastic protective cover 13. These additional holes facilitate observation of the oil level inside the oil reservoir 10 and ensure heat dissipation.

[0025] As a second embodiment of this utility model: During installation, the oil reservoir 10 is pushed upward into the outer screw metal ring 4. Through its own damping and structural deformation, the sealing rubber ring 7 is precisely engaged in the elastic groove 12 connecting the rubber ring 11. At this time, the embedded rubber ring 8 is compressed in the inner ring groove 6, forming the first seal; simultaneously, the elastic metal ring 9 undergoes slight deformation under the pressure inside the oil reservoir, indirectly pressing against the outer wall of the inner ring groove 6, enhancing the tightness and reliability of the seal, forming a passively enhanced sealing mechanism. The oil suction pipe 3 is then inserted into the oil in the oil reservoir 10. After the oil reservoir 10 and the valve body 1 on the oil mist lubricator are assembled, the plastic protective cover 13 is placed upward over the outer screw metal ring 4 and the oil reservoir 10. By rotating the plastic protective cover 13, its inner thread 15 is screwed into the thread of the outer screw metal ring 4, and at the same time, the second magnetic ring 16 inside it is magnetically attracted and fixed to the first magnetic ring 5 fixed on the outer screw metal ring 4. This dual connection of thread and magnetism ensures the ease and firmness of the protective cover installation. At the same time, under the preload of the return spring 18, the spring push ring 19 continuously and elastically pushes upward against the lower end face of the oil reservoir 10. The continuous upward pushing force provided by the spring push ring 19 can effectively counteract the vibration that may occur during system operation, prevent the oil reservoir 10 from undergoing slight downward displacement due to vibration, thereby avoiding loosening of the main sealing connection and ensuring the long-term stability of the seal.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A removable oil mist lubricator, comprising an upper valve body (1), an oil reservoir (10), and a plastic protective cover (13), characterized in that: The lower end of the upper valve body (1) of the oil mist lubricator is fixed with an external screw metal ring (4). The lower edge of the external screw metal ring (4) is bonded with an inherent first magnetic ring (5) by epoxy resin. The inner wall of the external screw metal ring (4) is bonded with an inherent sealing rubber ring (7). An inner ring groove (6) is provided in the sealing rubber ring (7). An elastic metal ring (9) is provided on the outer side of the inner ring groove (6). An embedded rubber ring (8) is provided on the inner side of the inner ring groove (6). A connecting rubber ring (11) is provided at the upper end of the oil reservoir (10). An elastic groove (12) is provided on the outside of the rubber ring (11). The oil reservoir (10) is damped and inserted into the outer screw metal ring (4). The upper end of the plastic protective cover (13) is provided with an internal thread (15). A second magnet ring (16) is provided on the lower side of the internal thread (15). A spring mounting ring (17) is fixed at the lower end of the plastic protective cover (13). Multiple reset springs (18) are longitudinally installed on the upper end of the spring mounting ring (17). A spring push ring (19) is horizontally installed on the upper end of the multiple reset springs (18).

2. The oil cup detachable oil mist lubricator according to claim 1, characterized in that: The upper valve body (1) of the oil mist lubricator has an oil mist port (2) through it on the side surface. An oil suction pipe (3) is installed longitudinally at the lower end of the upper valve body (1) of the oil mist lubricator and is inserted into the oil storage cup (10).

3. The oil cup detachable oil mist lubricator according to claim 1, characterized in that: The elastic metal ring (9) abuts against the embedded rubber ring (8).

4. The oil cup detachable oil mist lubricator according to claim 1, characterized in that: The sealing rubber ring (7) is inserted into the elastic groove (12).

5. The oil cup detachable oil mist lubricator according to claim 1, characterized in that: The plastic protective cover (13) is placed over the outer screw metal ring (4) and the oil cup (10), and the inner screw thread (15) is screwed into the outer screw metal ring (4) by the thread. The second magnet ring (16) and the first magnet ring (5) are fixed by magnetic attraction.

6. The oil cup detachable oil mist lubricator according to claim 1, characterized in that: The spring push ring (19) elastically abuts against the lower end face of the oil reservoir (10).

7. The oil cup detachable oil mist lubricator according to claim 1, characterized in that: The plastic protective cover (13) has multiple strip-shaped waist holes (14) on its outer side.