Drip-proof oil injection nozzle

By introducing a sealing component and an oil discharge trigger component into the oil nozzle, the problem of oil leakage in the oil nozzle was solved, achieving an anti-drip effect and improving production efficiency and product quality.

CN223868995UActive Publication Date: 2026-02-03ANHUI MASCOTOP ELECTRONICS
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Patent Information

Application Number
CN202520881780.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2026-02-03
Estimated Expiration
2035-05-07

AI Technical Summary

Technical Problem

Existing grease injectors are prone to leaking oil when grease injection stops, causing oil to drip and contaminate workpieces and result in oil loss, thus affecting product quality.

Method used

A leak-proof oil nozzle was designed, employing a sealing assembly and an oil outlet trigger assembly. The assembly includes a support limit seat, a sealing frustum, a sealing rod, a rebound gasket, a sealing sleeve, and an oil outlet trigger assembly. The coordinated use of these components improves the sealing performance of the oil injection pipe and prevents oil leakage.

Benefits of technology

This effectively prevents oil from dripping during the movement of the grease fitting, reducing wasted labor time and oil loss, and improving product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of oil injection nozzles, solves the technical problem that an oil injection nozzle is prone to oil leakage, and particularly relates to a drip-proof oil injection nozzle which comprises an oil injection pipe serving as a supporting foundation, and a sealing assembly used for preventing oil dripping is arranged on the oil injection pipe. The oil injection pipe is provided with an oil outlet triggering assembly used for conducting contact sealing for oil injection, the sealing assembly comprises a supporting limiting seat slidably connected to the inner side of the oil injection pipe, the end of the supporting limiting seat is fixedly connected with a sealing circular truncated cone, and the end, away from the supporting limiting seat, of the sealing circular truncated cone is fixedly connected with a plugging rod; and a sleeving groove is formed in the outer side of the plugging rod, and a springback gasket is fixedly connected to the inner side of the sleeving groove. Due to the arrangement of the sealing assembly, oil in the oil filling pipe can be prevented from overflowing along with the oil outlet end of the oil filling pipe, so that the outer side surface of equipment for filling oil through the oil filling pipe is prevented from being polluted, and the oil is prevented from being wasted.
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Description

Technical Field

[0001] This utility model relates to the technical field of oil nozzles, and in particular to an anti-drip oil nozzle. Background Technology

[0002] Many production lines now have automatic lubrication systems. For example, automotive engines and transmissions require a certain amount of lubricating oil to be added during factory manufacturing or online testing. Currently, most lubrication systems on production lines are automated. Typically, an oil pump draws oil from a tank, with one end of an oil line connected to the pump and the other to an oil nozzle. A cylinder, hydraulic cylinder, or robotic arm then drives the nozzle to automatically move forward, backward, or up and down to lubricate the receiving container. When lubrication stops, a significant amount of oil often remains at the nozzle's inlet. During the nozzle's movement, this residual oil often drips onto the surface of the workpiece or other areas, forcing subsequent processes to clean the oil stains, resulting in unnecessary wasted time and oil loss. In severe cases, the oil stains cannot be completely cleaned, affecting product quality. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an anti-drip oil nozzle, which solves the technical problem of oil nozzles easily leaking oil and achieves the purpose of preventing dripping oil from contaminating the finished oil product.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a drip-proof oil nozzle, comprising an oil injection pipe as a supporting base, a sealing component for preventing oil dripping on the oil injection pipe, and an oil outlet triggering component for contacting the seal to inject oil.

[0005] The sealing assembly includes a support limiting seat slidably connected to the inner side of the oil injection pipe. A sealing frustum is fixedly connected to the end of the support limiting seat. A sealing rod is fixedly connected to the end of the sealing frustum away from the support limiting seat. A sleeve groove is opened on the outer side of the sealing rod. A spring gasket is fixedly connected to the inner side of the sleeve groove. A sealing sleeve is sleeved on the outer side of the spring gasket inside the sleeve groove. A sealing bevel is opened on the edge of the end of the sealing rod. An interlocking and closing bevel is fixedly connected to the end of the oil injection pipe away from the support limiting seat.

[0006] Preferably, the inner surface of the fitting and sealing inclined block is in contact with the sealing inclined surface, and the end of the sealing rod away from the support limiting seat extends into an oil injection pipe near the outer side of the fitting and sealing inclined block.

[0007] Preferably, the outer surface of the sealing sleeve is in contact with the inner wall of the oil injection pipe, and the outer surface of the sealing frustum is in contact with the inner wall of the oil injection pipe.

[0008] Preferably, the oil outlet triggering component includes two symmetrical guide stabilizing grooves located at the top and bottom of the inner side of the oil injection pipe. A stabilizing slide rod is slidably connected to the inner side of the guide stabilizing groove. A connecting slide rod is fixedly connected to the middle of the end of the support limiting seat away from the sealing rod. A reset spring is sleeved on the outer side of the connecting slide rod. A sealing folding tube is fixedly connected to the middle of the end of the inner side of the oil injection pipe away from the support limiting seat.

[0009] Preferably, the two ends of the reset spring are connected to the inner wall of the support limiting seat and the oil injection pipe at the end away from the sealing rod, respectively.

[0010] Preferably, the stabilizing slide rod extends through the sealing folded tube to the outside of the oil injection pipe, and the stabilizing slide rod is fixedly connected to the sealing folded tube at the joint, and an oil inlet pipe is connected to one end of the outside of the oil injection pipe.

[0011] By employing the above technical solution, this utility model provides an anti-drip oil nozzle, which has at least the following beneficial effects:

[0012] 1. Due to the sealing component, this utility model can prevent the oil inside the oil injection pipe from overflowing from the oil outlet end of the oil injection pipe, thereby contaminating the outer surface of the equipment that injects oil through the oil injection pipe and also causing oil waste.

[0013] 2. Due to the setting of the oil outlet trigger component, this utility model can be used in conjunction with the sealing component, making the triggering process of the sealing component more convenient, and can prevent oil from overflowing from the oil injection pipe through the oil outlet trigger component, thus improving the sealing performance. Attached Figure Description

[0014] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0015] In the attached diagram:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the installation structure of the support and limiting seat of this utility model;

[0018] Figure 3 This is a schematic diagram of the sealing folded tube installation structure of this utility model.

[0019] In the diagram: 1. Oil injection pipe; 2. Oil inlet pipe; 3. Sealing assembly; 31. Support limit seat; 32. Sealing frustum; 33. Sealing rod; 34. Sleeve groove; 35. Rebound gasket; 36. Sealing sleeve; 37. Sealing bevel; 38. Fitting and sealing bevel block;

[0020] 4. Oil outlet trigger assembly; 41. Guide stabilizing slide; 42. Stabilizing slide rod; 43. Connecting slide rod; 44. Return spring; 45. Sealing folding tube. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] During the movement of the grease fitting, residual oil often drips onto the surface of the workpiece or other areas, necessitating subsequent cleaning processes and resulting in unnecessary waste of time and oil loss. In severe cases, the oil stains cannot be completely removed, affecting product quality. Please refer to... Figures 1-3 This embodiment provides an anti-drip oil nozzle, solving the technical problem of easy oil leakage in oil nozzles. The device includes an oil injection pipe 1 as a supporting base, a sealing component 3 for preventing oil dripping on the oil injection pipe 1, and an oil outlet triggering component 4 for contact sealing and oil injection on the oil injection pipe 1. The sealing component 3 improves the sealing performance of the oil injection pipe 1, and the oil outlet triggering component 4 improves the sealing performance of the oil outlet switch.

[0024] When oiling stops, a significant amount of oil often remains at the oil inlet of the grease fitting. During the movement of the grease fitting, this residual oil frequently drips onto the surface of the workpiece or other areas, necessitating subsequent cleaning of the oil stains, resulting in unnecessary waste of time and oil loss. In severe cases, the oil stains cannot be completely cleaned, affecting product quality. To address this issue, sealing component 3 is proposed. The sealing assembly 3 includes a support limiting seat 31 slidably connected to the inner side of the oil injection pipe 1. A sealing frustum 32 is fixedly connected to the end of the support limiting seat 31. A sealing rod 33 is fixedly connected to the end of the sealing frustum 32 away from the support limiting seat 31. A sleeve groove 34 is opened on the outer side of the sealing rod 33. A spring-loaded gasket 35 is fixedly connected to the inner side of the sleeve groove 34. A sealing sleeve 36 is sleeved on the outer side of the spring-loaded gasket 35 inside the sleeve groove 34. The sealing effect of the sealing sleeve 36 is improved by the spring-loaded gasket 35 lifting the sealing sleeve 36. A sealing inclined surface 37 is opened on the edge of the end of the sealing rod 33. An interlocking and closing inclined block 38 is fixedly connected to the end of the oil injection pipe 1 away from the support limiting seat 31.

[0025] To ensure a seal at the oil outlet of the oil injection pipe 1, the inner surface of the fitting and sealing inclined block 38 is in contact with the sealing inclined surface 37, and the end of the sealing rod 33 away from the support limit seat 31 extends out of the oil injection pipe 1 and onto the outer side of the fitting and sealing inclined block 38.

[0026] To increase the number of seals and thus improve sealing performance and prevent oil dripping, the outer surface of the sealing sleeve 36 is in contact with the inner wall of the oil injection pipe 1, and the outer surface of the sealing frustum 32 is in contact with the inner wall of the oil injection pipe 1.

[0027] Example 2

[0028] Based on Example 1, which solved the technical problem of easy oil leakage from the oil nozzle, the problem of oil overflow at the oil outlet switch still exists. Figures 1-3 As shown, the specific implementation process is as follows: In order to improve the sealing performance of the oil outlet switch, the oil outlet trigger assembly 4 includes two symmetrical guide stabilizing grooves 41 opened at the top and bottom of the inner side of the oil injection pipe 1. A stabilizing slide rod 42 is slidably connected to the inner side of the guide stabilizing groove 41. A connecting slide rod 43 is fixedly connected to the middle of the end of the support limit seat 31 away from the sealing rod 33. A reset spring 44 is sleeved on the outer side of the connecting slide rod 43. A sealing folding tube 45 is fixedly connected to the middle of the inner side of the oil injection pipe 1 away from the support limit seat 31. The sealing folding tube 45 can seal the connection between the connecting slide rod 43 and the oil injection pipe 1 without affecting the sliding of the connecting slide rod 43.

[0029] To make the closing process of the oil supply switch easier, the two ends of the return spring 44 are connected to the inner wall of the support limit seat 31 and the end of the oil injection pipe 1 away from the sealing rod 33, respectively.

[0030] To prevent oil inside the oil injection pipe 1 from overflowing to the outside along the stabilizing slide bar 42, the stabilizing slide bar 42 extends through the sealing folded tube 45 to the outside of the oil injection pipe 1, and the stabilizing slide bar 42 is fixedly connected to the sealing folded tube 45 at the joint. One end of the outside of the oil injection pipe 1 is connected to the oil inlet pipe 2.

[0031] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drip-proof oil nozzle, comprising an oil injection pipe (1) as a supporting base, characterized in that: The oil injection pipe (1) is provided with a sealing component (3) for preventing oil dripping, and the oil injection pipe (1) is provided with an oil outlet trigger component (4) for contacting the seal to inject oil. The sealing assembly (3) includes a support limiting seat (31) slidably connected to the inside of the oil injection pipe (1). A sealing frustum (32) is fixedly connected to the end of the support limiting seat (31). A sealing rod (33) is fixedly connected to the end of the sealing frustum (32) away from the support limiting seat (31). A sleeve groove (34) is provided on the outside of the sealing rod (33). A spring gasket (35) is fixedly connected to the inside of the sleeve groove (34). A sealing sleeve (36) is sleeved on the outside of the spring gasket (35) inside the sleeve groove (34). A sealing inclined surface (37) is provided at the edge of the end of the sealing rod (33). An interlocking and closing inclined block (38) is fixedly connected to the end of the oil injection pipe (1) away from the support limiting seat (31).

2. The anti-drip oil nozzle according to claim 1, characterized in that: The inner surface of the fitting and sealing inclined block (38) is in contact with the sealing inclined surface (37), and the end of the sealing rod (33) away from the support limit seat (31) extends out to the oil injection pipe (1) near the outer side of the fitting and sealing inclined block (38).

3. The anti-drip oil nozzle according to claim 1, characterized in that: The outer surface of the sealing sleeve (36) is in contact with the inner wall of the oil injection pipe (1), and the outer surface of the sealing frustum (32) is in contact with the inner wall of the oil injection pipe (1).

4. The anti-drip oil nozzle according to claim 1, characterized in that: The oil outlet trigger assembly (4) includes two symmetrical guide stabilizing grooves (41) located at the top and bottom of the inner side of the oil injection pipe (1). A stabilizing slide rod (42) is slidably connected to the inner side of the guide stabilizing groove (41). A connecting slide rod (43) is fixedly connected to the middle of the end of the support limiting seat (31) away from the sealing rod (33). A reset spring (44) is sleeved on the outer side of the connecting slide rod (43). A sealing folding tube (45) is fixedly connected to the middle of the end of the inner side of the oil injection pipe (1) away from the support limiting seat (31).

5. The anti-drip oil nozzle according to claim 4, characterized in that: The two ends of the reset spring (44) are respectively connected to the inner wall of the support limit seat (31) and the oil injection pipe (1) away from the sealing rod (33).

6. The anti-drip oil nozzle according to claim 4, characterized in that: The stabilizing slide bar (42) extends through the sealing folded tube (45) to the outside of the oil injection pipe (1), and the stabilizing slide bar (42) is fixedly connected to the sealing folded tube (45) at the joint. One end of the outside of the oil injection pipe (1) is connected to the oil inlet pipe (2).