Oil injection nozzle
By using the fitting of the inner core and the oil filling pipe and elastic parts in the oil filling nozzle to control the oil outlet channel, and combining adjustment and fine-tuning springs, the problem of low oil output of the oil filling nozzle is solved, and the accurate output of lubricating oil is achieved to ensure the machinery The equipment is operating normally.
Patent Information
- Application Number
- CN202323626666.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-28
AI Technical Summary
The oil output of the existing oil injection nozzle has low accuracy, which can easily lead to too much or too little lubricating oil, affecting the normal operation of the machinery and equipment.
A oil injection nozzle is designed, using the inner core and the oil injection pipe to control the opening and closing of the oil outlet passage through the give way and elastic parts, and combines adjustment and fine-tuning spring to achieve the accurate output of lubricating oil.
The accuracy of oil output of the oil injection nozzle is improved, ensuring the appropriate amount of lubricating oil is injected into the mechanical equipment, and ensuring the normal operation of the equipment.
Smart Images
Figure CN222186581U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of mechanical auxiliary accessories, and in particular to an oiling nozzle. Background Art
[0002] The grease nozzle is a universal oil injection mechanical accessory, usually used to inject lubricating oil into various hinge points of mechanical equipment, and is widely used in the maintenance of industrial mechanical equipment.
[0003] The existing oiling nozzle is installed on the oiling gun or other oiling components. The main part of the oiling nozzle is an oil pipe. The structure of the oil pipe is usually a straight fixed channel. After the lubricating oil flows through the channel, the oil is discharged from the hole at the end of the metal pipe.
[0004] Since the structure of the oiling nozzle is relatively simple, the control over the accuracy of the oil output is relatively low, and it is easy for the oil output to be too large or too small, resulting in excessive lubricating oil infiltrating the equipment connection, or insufficient lubrication of the connection position of the mechanical equipment, which in turn causes the mechanical equipment to fail to operate normally. Therefore, it is necessary to control the oil output of the lubricating oil more accurately. Utility Model Content
[0005] In order to improve the problem of low oil output accuracy, the present application provides an oiling nozzle.
[0006] The present application provides a grease injection nozzle adopting the following technical solution:
[0007] An oil injection nozzle comprises an oil injection pipe and an inner core, wherein the oil injection pipe comprises an input end and an output end which are coaxially arranged and fixedly connected, an oil outlet channel is provided on the output end of the oil injection pipe, and the oil outlet channel is communicated with the interior of the oil injection pipe;
[0008] The inner core is inserted into the oil filling tube and abuts against the inner wall of the oil filling tube. The inner core slides in the oil filling tube. The outer wall of the inner core is provided with a makeshift channel for the lubricating oil to pass through. The number of the makeshift channels is at least two, and each of the makeshift channels is evenly arranged on the inner core and located in the middle of the inner core.
[0009] By adopting the above technical solution, the setting of the oil filling pipe provides a flow channel for the lubricating oil. After the lubricating oil enters the oil filling pipe from the input end, it flows out from the oil outlet channel opened on the output end. The inner core is set in the oil filling pipe and cooperates with the oil filling pipe. The inner core slides in the oil filling pipe, and controls the opening and closing of the oil outlet channel by pressing against or detaching from the oil filling pipe at the end position. The clearance groove on the side wall controls the passage of the lubricating oil, achieving the effect of controlling the oil output of the lubricating oil, thereby improving the accuracy of the oil output of the oil filling nozzle.
[0010] Optionally, the inner core includes a telescopic rod and an elastic member for driving the telescopic rod to slide, the elastic member is sleeved on the telescopic rod at a position close to the input end, a conical annular groove for the elastic member to engage is provided in the oil filling pipe, and the elastic member and the inner side wall of the oil filling pipe and the inner side wall of the conical annular groove are in contact with each other;
[0011] When the elastic member is compressed, the telescopic rod moves away from the input end to close the oil outlet channel. When the elastic member is released, the telescopic rod is driven by the rebound force of the elastic member to slide toward the input end, and the lubricating oil flows out of the oil outlet channel.
[0012] By adopting the above technical solution, after the oil filling pipe is installed, the lower end of the elastic member is limited by the conical ring groove, and the upper end of the elastic member is pressed by other parts of the oil filling gun, and the elastic member in the non-oil filling state is in a compressed state. When the pressure on the elastic member near the output end decreases, the elastic member rebounds toward the input end of the oil filling nozzle, and at the same time, the telescopic rod is driven by the elastic member to slide, realizing the telescopic effect of the telescopic rod in the oil filling pipe, thereby achieving the effect of controlling the lubricating oil output and improving the accuracy of the oil output of the oil filling nozzle.
[0013] Optionally, the elastic member includes a cylindrical slider, an adjusting spring and a limiting ring, the limiting ring is pressed against the conical ring groove, the cylindrical slider is slidably installed on the end of the telescopic rod and slides in the oil filling pipe, and the adjusting spring is pressed between the cylindrical slider and the limiting ring.
[0014] By adopting the above technical solution, the end of the tubular slider and the telescopic rod are clamped and fixed. When the upper end of the tubular slider is pressed down, the adjustment spring is compressed between the limit ring and the tubular slider. When the pressure on the upper end of the tubular slider decreases, the adjustment spring rebounds, driving the tubular slider to drive the telescopic rod to move toward the input port of the oil filling pipe. By changing the pressure on the upper end of the tubular slider, the sliding distance of the telescopic rod in the oil filling pipe can be controlled, thereby achieving the effect of controlling the oil output of the lubricating oil and improving the accuracy of the oil output of the oil filling nozzle.
[0015] Optionally, a fine-tuning spring and an end cover for fine-tuning the oil output are provided in the cylindrical slider, the fine-tuning spring and the end cover are pressed against each other, the end cover is threadedly connected to the side of the cylindrical slider close to the input end, and the end of the fine-tuning spring away from the end that is pressed against the telescopic rod.
[0016] By adopting the above technical solution, the threaded matching arrangement between the end cover and the cylindrical slider can adjust the clamping force of the fine-tuning spring by adjusting the thread of the end cover. The driving distance of the fine-tuning spring on the telescopic rod is much smaller than the driving distance of the adjusting spring on the telescopic rod. Therefore, by adjusting the end cover, the sliding distance of the fine-tuning spring on the telescopic rod can be finely adjusted, thereby achieving a small amount of adjustment of the oil output, and improving the accuracy of the oil output of the oil injection nozzle.
[0017] Optionally, a mounting groove for mounting the fine-tuning spring is formed on the telescopic rod, and the fine-tuning spring abuts against an inner side wall of the mounting groove.
[0018] By adopting the above technical solution, the setting of the installation groove, compared with the setting of placing the fine-tuning spring abutting against the end position of the telescopic rod, the setting of placing the fine-tuning spring in the installation groove improves the connection stability between the fine-tuning spring and the telescopic rod, helps to improve the accuracy of the fine-tuning spring in making fine adjustments to the telescopic rod, and thus improves the accuracy of the oil output of the oil filling nozzle.
[0019] Optionally, a convex step for limiting the end cover is provided in the cylindrical slider, and a side of the end cover away from the input end is in contact with the convex step.
[0020] By adopting the above technical solution and the setting of the convex step, the stroke of the end cover for thread adjustment away from the input end can be limited, so that the fine-tuning spring will not be over-extruded, which improves the elastic deformation performance of the fine-tuning spring to a certain extent, helps to improve the accuracy of the fine-tuning spring in making fine adjustments to the telescopic rod and improves the accuracy of the oil output of the oil filling nozzle.
[0021] Optionally, a clearance groove is provided on the cylindrical slider along the length direction to facilitate the installation of the end cover, and the number of the clearance grooves is two, and the two clearance grooves are symmetrically arranged and perpendicular to the convex step.
[0022] By adopting the above technical solution and setting the clearance groove, the end cover can be adjusted from two clearance groove positions when installed into the interior of the cylindrical slider, so that the installation position of the end cover can be more precise, which helps to improve the accuracy of the oil output of the oil filling nozzle.
[0023] Optionally, a hemispherical guide surface is protrudingly provided on the oil filling pipe, the hemispherical guide surface is located on the output end, and the oil outlet channel is opened close to the sphere generatrix position of the hemispherical guide surface.
[0024] By adopting the above technical solution and setting the hemispherical guide surface, the lubricating oil can flow away from the port position of the oil outlet channel through the hemispherical drainage effect and reach the connection position of the mechanical component that needs lubrication, so that a small amount of lubricating oil that flows out will not remain in the oil outlet channel, thereby preventing the oil outlet channel from being blocked, which helps to improve the accuracy of the oil output of the oil filling nozzle.
[0025] Optionally, the number of the oil outlet channels is at least two, and each of the oil outlet channels is evenly arranged at the end of the oil filling pipe.
[0026] By adopting the above technical solution, the number of oil outlet channels is set to multiple, so that the lubricating oil can be output from each oil outlet channel. When any oil outlet channel is blocked, the other oil outlet channels can still supply the lubricating oil to flow out, ensuring the stability of the oil filling operation of the oil filling nozzle.
[0027] Optionally, each of the oil outlet channels is obliquely opened from the inner wall of the oil filling pipe to the outer wall of the oil filling pipe, and the angle between the central axis of each of the oil outlet channels and the central axis of the oil filling pipe is set to be an obtuse angle.
[0028] By adopting the above technical solution, the inclined setting of each oil outlet channel is beneficial to the discharge of lubricating oil from the end position of the oil filling pipe on the one hand, and on the other hand, compared with the vertical impact on the mechanical parts to be lubricated, the inclined discharged liquid column can form a certain buffering effect, reduce the probability of blockage of the oil outlet channel, and improve the accuracy of the oil output of the oil filling nozzle.
[0029] In summary, the present application includes at least one of the following beneficial technical effects:
[0030] 1. The inner core is installed in the oil filling pipe and slides inside the oil filling pipe. The clearance groove between the inner core and the oil filling pipe can control the passage of lubricating oil. By pressing or separating from the oil outlet channel at the end position of the telescopic rod, the opening and closing of the oil outlet channel is controlled to achieve the effect of controlling the oil output of the lubricating oil;
[0031] 2. The coordinated setting of the adjustment spring and the fine-tuning spring realizes the effect of adjusting the sliding distance of the telescopic rod in the oil filling pipe. The oil output of one adjustment of the fine-tuning spring is only 1 / 10 of the oil output of one adjustment of the adjustment spring, so that the oil output of the lubricating oil can be accurately controlled, thereby improving the accuracy of the oil output of the oil filling nozzle. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Figure 1 It is a schematic diagram of the overall structure of an oil filling nozzle in an embodiment of the present application.
[0033] Figure 2 It is a schematic diagram of the explosion structure of an oil filling nozzle in an embodiment of the present application.
[0034] Figure 3 It is a cross-sectional schematic diagram of an oil filling nozzle in an embodiment of the present application.
[0035] Figure 4 yes Figure 3 A partial enlarged schematic diagram of the cylindrical slider and the give-way groove in part A.
[0036] Figure 5 yes Figure 3 A partial enlarged schematic diagram of the hemispherical guide surface and the oil outlet channel in part B.
[0037] Explanation of the reference numerals: 1. oil filling pipe; 11. input end; 12. output end; 13. oil outlet channel; 14. conical ring groove; 15. hemispherical guide surface; 2. inner core; 21. clearance channel; 22. telescopic rod; 221. mounting groove; 23. elastic member; 231. cylindrical slider; 2311. fine-tuning spring; 2312. end cover; 2313. convex step; 2314. clearance groove; 232. adjustment spring; 233. limiting ring. DETAILED DESCRIPTION
[0038] In order to make the purpose, technical solutions and advantages of this application more clear, the following Figure 1-5 And embodiments, the present application is further described in detail.
[0039] The embodiment of the present application discloses a grease injection nozzle. The words such as "upper" and "lower" used to express the positional relationship in the embodiment are determined with reference to the positional relationship that the input end 11 of the grease injection nozzle is at the upper side and the output end 12 is at the lower side. For example, the elastic member 23 is installed at the upper side of the telescopic rod 22, and the fine-tuning spring 2311 is abutted against the lower side of the end cover 2312.
[0040] Reference Figure 1 and Figure 2 The oil injection nozzle includes an oil injection tube 1 and an inner core 2. The inner core 2 is inserted into the oil injection tube 1 and slides in the oil injection tube 1. The outer wall of the inner core 2 abuts against the inner wall of the oil injection tube 1. The oil injection tube 1 includes an input end 11 and an output end 12. The input end 11 and the output end 12 are coaxially arranged and fixedly connected.
[0041] A clearance channel 21 is provided at the middle section of the inner core 2. In this embodiment, the number of the clearance channels 21 is preferably three, and the three clearance channels 21 are evenly arranged on the outer wall of the inner core 2. After the clearance channels 21 are opened, the cross section of the inner core 2 at the position of the clearance channels 21 is an equilateral triangle. The arrangement of the clearance channels 21 allows a gap to be left between the inner core 2 and the inner wall of the oil injection pipe 1, so that the lubricating oil can pass through.
[0042] The output end 12 is provided with an oil outlet channel 13 for the lubricating oil to flow out of the oil filling pipe 1. In this embodiment, there are a plurality of oil outlet channels 13, and each oil outlet channel 13 is evenly arranged in a ring at the lower part of the output end 12 of the oil filling pipe 1. The end of the output end 12 is provided with a hemispherical guide surface 15 for guiding the lubricating oil, and each oil outlet channel 13 is opened at an adjacent position of the generatrix of the sphere.
[0043] Reference Figure 2 and Figure 3 The inner core 2 includes a telescopic rod 22 and an elastic member 23. The elastic member 23 is sleeved outside the telescopic rod 22 and is located at the upper end of the telescopic rod 22. A conical annular groove 14 for the elastic member 23 to be clamped and fixed is provided on the inner side wall of the oil filling pipe 1. The lower part of the elastic member 23 is clamped in the conical annular groove 14.
[0044] The elastic member 23 includes a cylindrical slider 231 , an adjusting spring 232 and a limiting ring piece 233 . The cylindrical slider 231 is slidably installed on the upper end of the telescopic rod 22 . The limiting ring piece 233 is clamped and fixed in the conical ring groove 14 . The adjusting spring 232 abuts between the cylindrical slider 231 and the limiting ring piece 233 .
[0045] When the upper end surface of the elastic member 23 is pressed down by other parts of the grease gun, the adjusting spring 232 is in a compressed state, and at the same time, the telescopic rod 22 is driven by the elastic member 23 to press toward the output end 12 of the oil filling pipe 1, thereby sealing the lubricating oil in the oil filling pipe 1; when the force on the upper end surface of the elastic member 23 decreases, the adjusting spring 232 rebounds, and the telescopic rod 22 is driven by the rebound force of the adjusting spring 232 to slide toward the input end 11, and the lower end of the telescopic rod 22 is separated from the output end 12 of the oil filling pipe 1, thereby allowing the lubricating oil to flow out of the output end 12.
[0046] Reference Figure 3 and Figure 4 The cylindrical slider 231 is provided with a fine-tuning spring 2311 and an end cap 2312. The upper end of the telescopic rod 22 is provided with an installation slot 221 for installing the fine-tuning spring 2311. The fine-tuning spring 2311 abuts against the inner side wall of the installation slot 221. The end cap 2312 is threadedly connected to the cylindrical slider 231. The cylindrical slider 231 is provided with a convex step 2313 for limiting the end cap 2312. When the end cap 2312 is tightened, the end cap 2312 abuts against the convex step 2313 to prevent excessive squeezing of the fine-tuning spring 2311 below the end cap 2312.
[0047] The lower part of the end cover 2312 abuts against the upper end of the fine-tuning spring 2311. When the end cover 2312 is tightened, the adjusting spring 232 is compressed and drives the telescopic rod 22 downward to slide a short distance relative to the oil filling pipe 1, thereby controlling a small amount of lubricating oil to flow out.
[0048] The cylindrical slider 231 is provided with a clearance groove 2314 for facilitating the installation of the end cover 2312. In this embodiment, the number of the clearance grooves 2314 is preferably two, and the two clearance grooves 2314 are symmetrically opened on the inner side wall of the cylindrical slider 231. The clearance grooves 2314 are opened along the length direction and are perpendicular to the convex step 2313. When the end cover 2312 is installed in the cylindrical slider 231, the two clearance grooves 2314 are respectively placed on both sides of the end cover 2312.
[0049] Reference Figure 3 and Figure 5 Each oil outlet channel 13 is opened obliquely downward from the inner wall of the oil filling pipe 1 to the outer wall of the oil filling pipe 1, and the angle between the central axis of each oil outlet channel 13 and the central axis of the oil filling pipe 1 is set to be an obtuse angle.
[0050] The implementation principle of a grease nozzle in the embodiment of the present application is as follows: when the grease nozzle is installed on the grease gun, the elastic member 23 is in a compressed state. When the grease nozzle performs the grease operation, the pressure of other parts of the grease gun on the upper end of the elastic member 23 is reduced, the elastic member 23 rebounds, and the telescopic rod 22 is driven by the rebound force of the elastic member 23 to slide toward the input end 11, and the lubricating oil flows through the clearance channel 21 and flows out from the oil outlet channel 13. When the pressure on the upper end of the elastic member 23 is reduced, the cylindrical slider 231 is driven by the rebound force of the adjustment spring 232 to drive the telescopic rod 22 to slide, so that the oil outlet channel 13 is opened and the lubricating oil flows out. When the flow demand of the lubricating oil is small, the end cap 2312 on the cylindrical slider 231 can be adjusted, and the rebound force of the fine-tuning spring 2311 can drive the telescopic rod 22 to an ultra-short stroke, so that a small amount of oil is discharged from the grease pipe 1, thereby improving the accuracy of the oil output of the grease nozzle.
[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A grease nozzle, Features: The invention comprises an oil injection pipe (1) and an inner core (2), wherein the oil injection pipe (1) comprises an input end (11) and an output end (12) which are coaxially arranged and fixedly connected, an oil outlet channel (13) is provided on the output end (12) of the oil injection pipe (1), and the oil outlet channel (13) is communicated with the interior of the oil injection pipe (1); The inner core (2) is inserted into and slides in the oil injection pipe (1) and abuts against the inner wall of the oil injection pipe (1). A clearance channel (21) for the passage of lubricating oil is provided on the outer wall of the inner core (2) along the length direction. The number of the clearance channels (21) is at least two. Each of the clearance channels (21) is evenly arranged on the inner core (2) and is located in the middle of the inner core (2).
2. A grease injection nozzle according to claim 1, Features: The inner core (2) comprises a telescopic rod (22) and an elastic member (23), wherein the elastic member (23) is sleeved on the telescopic rod (22) at a position close to the input end (11), and a conical annular groove (14) for the elastic member (23) to engage is provided in the oil injection pipe (1), and the elastic member (23) and the inner side wall of the oil injection pipe (1) and the inner side wall of the conical annular groove (14) are in contact with each other; When the elastic member (23) is compressed, the telescopic rod (22) moves away from the input end (11) to close the oil outlet channel (13); when the elastic member (23) is released, the telescopic rod (22) is driven by the rebound force of the elastic member (23) to slide toward the input end (11), and the lubricating oil flows out of the oil outlet channel (13).
3. A grease injection nozzle according to claim 2, Features: The elastic member (23) comprises a cylindrical slider (231), an adjusting spring (232) and a limiting ring piece (233); the limiting ring piece (233) is pressed against the conical ring groove (14); the cylindrical slider (231) is slidably mounted on the end of the telescopic rod (22) and slides in the oil filling pipe (1); the adjusting spring (232) is pressed between the cylindrical slider (231) and the limiting ring piece (233).
4. A grease injection nozzle according to claim 3, Features: A fine-tuning spring (2311) and an end cover (2312) for fine-tuning the oil output are arranged in the cylindrical slider (231); the fine-tuning spring (2311) and the end cover (2312) are pressed against each other; the end cover (2312) is threadedly connected to a side of the cylindrical slider (231) close to the input end (11); and the end of the fine-tuning spring (2311) away from the end contacting the end cover (2312) is pressed against the telescopic rod (22).
5. A grease injection nozzle according to claim 4, Features: The telescopic rod (22) is provided with a mounting groove (221) for mounting the fine-tuning spring (2311), and the fine-tuning spring (2311) abuts against the inner side wall of the mounting groove (221).
6. A grease injection nozzle according to claim 5, Features: A convex step (2313) for limiting the position of the end cover (2312) is also provided in the cylindrical slider (231), and a side of the end cover (2312) away from the input end (11) abuts against the convex step (2313).
7. A grease injection nozzle according to claim 6, Features: The cylindrical slider (231) is provided with a clearance groove (2314) for installing the end cover (2312) along the length direction, and the number of the clearance grooves (2314) is two. The two clearance grooves (2314) are symmetrically arranged and perpendicular to the convex step (2313).
8. The oiling nozzle according to claim 1, Features: A hemispherical guide surface (15) is protrudingly provided on the oil filling pipe (1), the hemispherical guide surface (15) is located on the output end (12), and the oil outlet channel (13) is opened at a position close to the sphere generatrix of the hemispherical guide surface (15).
9. A grease injection nozzle according to claim 8, Features: The number of the oil outlet channels (13) is at least two, and each of the oil outlet channels (13) is evenly arranged in a ring at the end of the oil injection pipe (1).
10. A grease injection nozzle according to claim 9, Features: Each of the oil outlet channels (13) is obliquely opened from the inner wall of the oil injection pipe (1) to the outer wall of the oil injection pipe (1), and the included angle between the central axis of each of the oil outlet channels (13) and the central axis of the oil injection pipe (1) is set to be an obtuse angle.