Auto-induction oil injection device

By using the magnetic connection between the oil injection head and the threaded joint, and the unblocking rod structure, the problem of existing oil injection devices being unable to adapt to different models of oil injection points and clogging issues is solved, enabling rapid assembly and cleaning, and improving oil injection efficiency and safety.

CN224065236UActive Publication Date: 2026-03-31KUNSHAN XINQITAI INTELLIGENT AUTOMATION EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-16
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing oiling devices cannot be adapted to different models of oiling points or equipment, and are prone to clogging and inconvenient to clean.

Method used

Quick assembly is achieved through the threaded connection between the oil filling head and the threaded connector. The magnetic attraction between the magnet and the ferrous block, along with the guide block and unblocking rod structure, enables the quick disassembly and cleaning of the oil filling pipe. The O-ring improves the sealing performance and prevents leakage and blockage.

Benefits of technology

The modular adaptability of the oil injection device has been achieved, which has improved the working efficiency of the equipment, prevented oil spills and blockages, and ensured operational safety and cleanliness.

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Abstract

The utility model relates to the technical field of oiling devices, in particular to an automatic induction oiling device which comprises an oil storage tank and an oiling pipe, the bottom of the oil storage tank is detachably connected with the oiling pipe through a fixing mechanism, a first O-shaped ring is arranged between the oil storage tank and the oiling pipe, and the first O-shaped ring is fixedly connected with the oil storage tank. A sliding cavity is formed in the inner wall of the oil injection pipe. The oil injection pipe and the oil injection head are rapidly assembled through threaded connection of the oil injection head and the threaded connector, oil injection heads of different specifications can be replaced conveniently, the device can be matched with equipment oil injection ports or oil tanks of different types, the sealing performance of the connecting position of the threaded connector and the oil injection head can be enhanced through the second O-shaped ring, and the service life of the oil injection pipe and the oil injection head is prolonged. The main rod is arranged in the oil injection pipe, connection is achieved through magnetic attraction of the iron block at the bottom of the main rod and the magnet, and then the main rod, the attaching rod, the movable attaching rod and the dredging rod are driven to synchronously rotate by cooperating with the guide block to slide along the rail in the guide groove.
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Description

Technical Field

[0001] This utility model relates to the technical field of oil injection devices, specifically to an automatic sensing oil injection device. Background Technology

[0002] Currently, when changing lubricating oil in crankcases and gears, due to a lack of suitable tools, operators typically lift a bucket of lubricating oil and pour it directly into the equipment's filler neck. However, because the filler neck is small, this method causes lubricating oil to spill onto the outer surface of the equipment, polluting the equipment and its surrounding environment. This necessitates operators spending considerable time cleaning and disinfecting the equipment after the oiling process. Furthermore, the prolonged effort of holding the oil bucket while pouring can easily lead to operator fatigue, causing the bucket to slip and creating a safety hazard, while also significantly impacting work efficiency.

[0003] A search revealed a utility model patent with publication number CN217635018U, which discloses an oiling device relating to the field of equipment maintenance technology. This oiling device includes an oil reservoir and a speed regulating component. The oil reservoir has an oil storage chamber, and is equipped with an oil inlet and an oil outlet communicating with the oil storage chamber. The oil outlet is connected to the equipment's oiling port via an oiling pipe. The speed regulating component is located in the oil reservoir and configured to adjust the oil flow rate at the oil outlet during oiling operations. This oiling device alleviates the technical problem of lacking a suitable auxiliary oiling tool in the prior art, achieving the goals of saving time and effort, and ensuring cleanliness and hygiene.

[0004] The aforementioned patent only uses a speed-regulating component to adjust the oil flow rate, allowing the oil in the storage chamber to be injected into the oil tank at a set speed. With this design, operators do not need to lift the oil drum and pour it towards the filling port, preventing oil from spilling onto the equipment's outer surface and eliminating subsequent cleaning and disinfection work. This protects the equipment and its surrounding environment, saves manpower, prevents the oil drum from falling due to fatigue, and ensures the operator's safety during oil filling. Furthermore, the adjustable oil flow rate increases the oil filling efficiency, improving the equipment's working efficiency. However, it cannot adequately replace the oil filling head, resulting in the oil filling head being incompatible with different models of oil filling points or equipment filling ports. Additionally, the modularity of the oil filling device is weak, making it difficult to disassemble and clean if blockages occur in the oil filling head or pipe body later.

[0005] Therefore, it is necessary to invent an automatic sensing oil injection device to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide an automatic sensing oil injection device. The oil injection head is connected to a threaded connector, enabling rapid assembly of the oil injection pipe and head. This facilitates the replacement of oil injection heads of different specifications, allowing the device to be adapted to different models of equipment oil inlets or tanks. The inclusion of an O-ring enhances the sealing at the connection between the threaded connector and the oil injection head. A main rod is installed inside the oil injection pipe, and a magnetic block at the bottom of the main rod connects it to a magnet. A guide block slides along a guide groove, causing the main rod, the sticking rod, the movable sticking rod, and the unblocking rod to rotate synchronously. The sticking rod, the movable sticking rod, and the unblocking rod clean the solidified oil adhering to the two ends of the oil injection pipe and the inner wall of the guide hopper, effectively preventing subsequent blockages. This addresses the problems of existing technologies where the oil injection head cannot be easily replaced, resulting in incompatibility with different models of oil injection points or equipment oil inlets. Furthermore, the modularity of the oil injection device is weak, making it difficult to disassemble and clean when blockages occur in the oil injection head and pipe.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic sensing oil filling device, comprising an oil storage tank and an oil filling pipe. The bottom of the oil storage tank is detachably connected to the oil filling pipe via a fixing mechanism. An O-ring is provided between the oil storage tank and the oil filling pipe, and the O-ring is fixedly connected to the oil storage tank. Two sliding cavities are provided on the inner wall of the oil filling pipe, symmetrically distributed about the central axis of the oil filling pipe. Limit grooves and oil drain holes are provided between each of the two sliding cavities and the oil filling pipe, with multiple oil drain holes. A slider is slidably disposed inside each of the two sliding cavities. A guide ring frame is fixedly connected between the two sliders. A guide groove is provided on the inner side of the guide ring frame. Guide blocks are symmetrically arranged inside the guide groove. The guide blocks are slidably connected to the guide groove. A main rod is fixedly connected between the two guide blocks through a connecting rod. A connecting rod is symmetrically fixed at the top of the main rod. A sticking rod is fixedly connected to the ends of the two connecting rods. A movable sticking rod is rotatably connected to the ends of the sticking rods through a rotating rod. Torsion springs are fixedly connected between the two ends of the rotating rod and the movable sticking rods. The torsion springs are movably sleeved on the outside of the rotating rod. A draining rod is symmetrically fixed to the outside of the main rod.

[0008] Preferably, a threaded connector is fixedly connected to the bottom of the oil injection pipe, an oil injection head is movably sleeved on the outside of the threaded connector, the threaded connector is threadedly connected to the oil injection head, an O-ring is fixedly snapped between the threaded connector and the oil injection head, a fixing seat is fixedly connected inside the oil injection head, and a magnet is fixedly installed inside the fixing seat.

[0009] Preferably, a ferrous block is fixedly connected to the bottom end of the main rod, the ferrous block matches the fixed base, and the ferrous block cooperates with the magnet.

[0010] Preferably, the top of the oil tank is fixedly connected to an inlet, the top of the inlet is rotatably connected to a cover plate, and a controller is installed on the top of the oil tank.

[0011] Preferably, the bottom of the oil storage tank is provided with a guide hopper, the guide hopper is connected to the oil injection pipe, and a solenoid valve is installed inside the guide hopper.

[0012] Preferably, the number of fixing mechanisms is set to two, and the two fixing mechanisms are symmetrically distributed about the central axis of the oil reservoir. Each fixing mechanism includes a fixed block, which is fixedly connected to the oil reservoir. An operating block is slidably disposed inside the fixed block. A spring body is fixedly connected between the operating block and the inner wall of the fixed block. An clearance groove is provided at the bottom of the fixed block, and the clearance groove matches the operating block. A fixing insert is fixedly connected to the side of the operating block away from the spring body. A slot is provided on the side of the oil injection pipe. The number of slots is the same as that of the fixed blocks. The two slots are symmetrically distributed about the central axis of the oil injection pipe, and the slots match the fixing inserts.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. The oil injection head and the threaded connector are connected by a threaded connection to achieve quick assembly of the oil injection pipe and the oil injection head, which facilitates the replacement of oil injection heads of different specifications. This allows the device to be adapted to the oil injection ports or oil tanks of different models of equipment. The O-ring II can enhance the sealing of the connection between the threaded connector and the oil injection head. A main rod is set inside the oil injection pipe, and the iron block at the bottom of the main rod is connected to a magnet through magnetic attraction. Subsequently, the guide block slides along the track in the guide groove to drive the main rod, the sticking rod, the movable sticking rod, and the unblocking rod to rotate synchronously. The sticking rod, the movable sticking rod, and the unblocking rod are used to clean the solidified oil adhering to the two ends of the oil injection pipe and the inner wall of the guide hopper, effectively preventing subsequent blockage problems.

[0015] 2. The insertion state of the fixed plug and the slot can be adjusted by manually moving the operating block, which makes it easy to separate the oil tank and the oil filling pipe later, and facilitates the cleaning of the inside of the oil filling pipe separately. The O-ring one can enhance the sealing of the connection between the oil tank and the oil filling pipe to prevent subsequent leakage. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0019] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a schematic cross-sectional view of the connection between the oil injection pipe and the guide ring frame of this utility model;

[0021] Figure 5 This is a schematic cross-sectional view of the connection between the oil injection pipe and the oil injection head via a threaded joint of this utility model.

[0022] Figure 6 This is a schematic diagram of the connection structure between the main rod and the movable connecting rod of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Oil reservoir; 2. Fixing mechanism; 3. Oil filling pipe; 4. O-ring one; 5. Sliding cavity; 6. Limiting groove; 7. Oil drain hole; 8. Sliding block; 9. Guide ring frame; 10. Guide groove; 11. Guide block; 12. Connecting rod one; 13. Main rod; 14. Connecting rod two; 15. Adhesive rod; 16. Rotating rod; 17. Movable adhesive rod; 18. Torsion spring; 19. Threaded joint; 20. Oil filling head; 21. O-ring two; 22. Fixing seat; 23. Magnet; 24. Ferrous block; 25. Adding port; 26. Cover plate; 27. Controller; 28. Feed hopper; 29. ​​Solenoid valve; 30. Fixed block; 31. Operating block; 32. Spring body; 33. Clearance groove; 34. Fixing insert; 35. Slot; 36. Unblocking rod. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1-6The automatic sensing oil filling device shown includes an oil reservoir 1 and an oil filling pipe 3. The bottom of the oil reservoir 1 is detachably connected to the oil filling pipe 3 via a fixing mechanism 2. An O-ring 4 is provided between the oil reservoir 1 and the oil filling pipe 3, and the O-ring 4 is fixedly connected to the oil reservoir 1. The inner wall of the oil filling pipe 3 has two sliding cavities 5, which are symmetrically distributed about the central axis of the oil filling pipe 3. Each of the two sliding cavities 5 and the oil filling pipe 3 has a limit groove 6 and an oil drain hole 7. The number of oil drain holes 7 is multiple. Both sliding cavities 5 are slidably arranged inside. A slider 8 is provided, and a guide ring frame 9 is fixedly connected between two sliders 8. A guide groove 10 is provided on the inner side of the guide ring frame 9. Guide blocks 11 are symmetrically arranged inside the guide groove 10. The guide blocks 11 are slidably connected to the guide groove 10. A main rod 13 is fixedly connected between the two guide blocks 11 through a connecting rod 12. A connecting rod 2 14 is symmetrically fixed to the top of the main rod 13. A clamping rod 15 is fixedly connected to the end of each of the two connecting rods 2 14. A movable clamping rod 17 is rotatably connected to the end of each clamping rod 15 through a rotating rod 16. Both ends of the rotating rod 16 are fixed to the movable clamping rod 17. A torsion spring 18 is fixedly connected to the outside of the rotating rod 16. A drain rod 36 is symmetrically fixed to the outside of the main rod 13. An O-ring 4 is provided at the connection between the oil reservoir 1 and the oil injection pipe 3 to improve the sealing and prevent leakage. By using the slider 8 to slide in the sliding cavity 5, the bottom end of the main rod 13 and the iron block 24 can be pulled out of the oil injection pipe 3 to facilitate the magnetic attraction and docking of the iron block 24 with the magnet 23. When the oil injection head 20 rotates with the threaded connection 19, it can cooperate with the guide block 11 to slide along the guide groove 10 to achieve the tightness of the main rod 13 and the connection. The rotation of rod 15, movable sticking rod 17, and cover plate 26 is used to unclog the inner wall of oil injection pipe 3, threaded joint 19, and guide hopper 28, reducing blockage problems. Alternatively, the main rod 13 can be pulled down to drive the unclogging component to perform a movable unclogging action inside the oil injection pipe 3. As the main rod 13 is pulled down, the sticking rod 15 is subjected to a downward force, which simultaneously pulls down the movable sticking rod 17 to accommodate its movement. The subsequent rebound of the torsion spring 18 can assist the movable sticking rod 17, the sticking rod 15, and the main rod 13 to return to their original positions without affecting the tight contact between the sticking rod 15 and the inner wall of the connection between the movable sticking rod 17 and the guide hopper 28 and the oil injection pipe 3, respectively.

[0027] The bottom of the oil injection pipe 3 is fixedly connected to a threaded connector 19. An oil injection head 20 is movably sleeved on the outside of the threaded connector 19. The threaded connector 19 and the oil injection head 20 are threadedly connected. An O-ring 21 is fixedly snapped between the threaded connector 19 and the oil injection head 20. A fixing seat 22 is fixedly connected inside the oil injection head 20. A magnet 23 is fixedly installed inside the fixing seat 22. The inner side of the oil injection head 20 matches the outer thread of the threaded connector 19, which facilitates a stable connection and makes it easy to replace the oil injection head 20 later. The O-ring 21 at the connection between the oil injection head 20 and the threaded connector 19 is used to improve the sealing performance. The magnet 23 is preferably a neodymium magnet, which has strong attraction and achieves a stable magnetic connection with the ferrous block 24.

[0028] A ferrous block 24 is fixedly connected to the bottom end of the main rod 13. The ferrous block 24 matches the fixed base 22 and cooperates with the magnet 23.

[0029] The top of the oil tank 1 is fixedly connected to an inlet 25, and the top of the inlet 25 is rotatably connected to a cover plate 26. The top of the oil tank 1 is equipped with a controller 27. After aligning the magnet 23 with the ferrous block 24 and magnetically attracting them, the threaded joint 19 and the oil injection head 20 are threadedly connected. This can effectively improve the structural stability of the main rod 13. At the same time as the oil injection head 20 rotates, it can drive the main rod 13 to rotate, which can also drive the internal unblocking components to rotate for unblocking and cleaning.

[0030] A guide hopper 28 is provided at the bottom of the oil storage tank 1. The guide hopper 28 is connected to the oil injection pipe 3. A solenoid valve 29 is installed inside the guide hopper 28. By communicating with the controller 27 to the solenoid valve 29 and the liquid level detector inside the equipment, the oil storage tank 1 is connected to the oil injection port at the oil injection point through the oil injection pipe 3. The solenoid valve 29 controls the opening and closing of the guide hopper 28, so that the device can control the oil injection amount according to the change in the amount of oil in the equipment, which can make the oil injection amount more accurate.

[0031] Two fixing mechanisms 2 are provided, symmetrically distributed about the central axis of the oil tank 1. Each fixing mechanism 2 includes a fixed block 30, which is fixedly connected to the oil tank 1. An operating block 31 is slidably disposed inside the fixed block 30. A spring body 32 is fixedly connected between the operating block 31 and the inner wall of the fixed block 30. A clearance groove 33 is provided at the bottom of the fixed block 30, which matches the operating block 31. A fixing insert 34 is fixedly connected to the side of the operating block 31 away from the spring body 32. A slot 35 is provided on the side of the oil injection pipe 3. The number of slots 35 is the same as that of the fixed blocks 30. The two slots 35 are symmetrically distributed about the central axis of the oil injection pipe 3. The slots 35 match the fixing insert 34. The expansion of the spring body 32 keeps the fixing insert 34 in a tight-fitting state with the slot 35. Subsequently, the fixed insert 34 can be separated from the slot 35 by the movable operating block 31, so as to disassemble the oil injection pipe 3 for easy maintenance and cleaning.

[0032] The working principle of this practical application is as follows:

[0033] Check whether the connection between the oil storage tank 1 and the oil injection pipe 3, and between the oil injection pipe 3 and the oil injection head 20 is normal. After confirming that the connection is normal, connect the oil injection head 20 to the oil injection port of the equipment that needs to be oiled. When the internal liquid level detector of the connected equipment detects that the oil level is insufficient, it will control the solenoid valve 29 to open through the controller 27. The oil in the oil storage tank 1 will be smoothly injected into the equipment through the guide hopper 28, the oil injection pipe 3, and the oil injection head 20. When the oil level is sufficient, the controller 27 will control the solenoid valve 29 to close and end the oil injection operation.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic induction oiling device comprising an oil storage tank (1) and an oiling pipe (3), characterized in that: The bottom of the oil storage tank (1) is detachably connected with an oil injection pipe (3) through a fixing mechanism (2), an O-shaped ring I (4) is arranged between the oil storage tank (1) and the oil injection pipe (3), the O-shaped ring I (4) is fixedly connected with the oil storage tank (1), a sliding cavity (5) is arranged on the inner wall of the oil injection pipe (3), the number of the sliding cavities (5) is two, the two sliding cavities (5) are symmetrically distributed about the center axis of the oil injection pipe (3), a limiting groove (6) and an oil discharge hole (7) are arranged between the two sliding cavities (5) and the oil injection pipe (3), the number of the oil discharge holes (7) is multiple, a sliding block (8) is slidably arranged in each of the two sliding cavities (5), a guide ring frame (9) is fixedly connected between the two sliding blocks (8), a guide groove (10) is arranged on the inner side of the guide ring frame (9), guide blocks (11) are symmetrically arranged in the guide groove (10), the guide blocks (11) are slidably connected with the guide groove (10), a main rod (13) is fixedly connected between the two guide blocks (11) through a connecting rod I (12), connecting rods II (14) are symmetrically fixed to the top end of the main rod (13), abutting rods (15) are fixedly connected to the end portions of the two connecting rods II (14), movable abutting rods (17) are rotatably connected to the end portions of the abutting rods (15) through rotating rods (16), torsion springs (18) are fixedly connected between the two ends of the rotating rods (16) and the movable abutting rods (17), the torsion springs (18) are movably sleeved on the outer portions of the rotating rods (16), and dredging rods (36) are symmetrically fixed to the outer portion of the main rod (13).

2. The automatic induction oiling device of claim 1, wherein: A threaded connector (19) is fixedly connected to the bottom of the oil injection pipe (3), an oil injection head (20) is movably sleeved on the outer portion of the threaded connector (19), the threaded connector (19) is threadedly connected with the oil injection head (20), and an O-shaped ring II (21) is fixedly clamped between the threaded connector (19) and the oil injection head (20), a fixing seat (22) is fixedly connected to the inner portion of the oil injection head (20), and a magnet (23) is fixedly arranged in the inner portion of the fixing seat (22).

3. The automatic induction oiling device of claim 1, wherein: An iron block (24) is fixedly connected to the bottom end of the main rod (13), the iron block (24) is matched with the fixing seat (22), and the iron block (24) is matched with the magnet (23).

4. The automatic induction oiling device of claim 1, wherein: An adding opening (25) is fixedly connected to the top of the oil storage tank (1), a cover plate (26) is rotatably connected to the top of the adding opening (25), and a controller (27) is mounted on the top of the oil storage tank (1).

5. The automatic induction oiling device of claim 1, wherein: A guide hopper (28) is arranged on the bottom of the oil storage tank (1), the guide hopper (28) is communicated with the oil injection pipe (3), and an electromagnetic valve (29) is mounted in the inner portion of the guide hopper (28).

6. The automatic induction oiling device of claim 1, wherein: The number of the fixing mechanisms (2) is two, the two fixing mechanisms (2) are symmetrically distributed about the center axis of the oil storage tank (1), the fixing mechanism (2) comprises a fixed block (30), the fixed block (30) is fixedly connected with the oil storage tank (1), an operating block (31) is slidably arranged in the fixed block (30), a spring body (32) is fixedly connected between the operating block (31) and the inner wall of the fixed block (30), an avoiding groove (33) is formed in the bottom of the fixed block (30), the avoiding groove (33) is matched with the operating block (31), a fixed insertion block (34) is fixedly connected to the side, away from the spring body (32), of the operating block (31), an insertion groove (35) is formed in the side of the oil injection pipe (3), the number of the insertion grooves (35) is the same as that of the fixed blocks (30), the two insertion grooves (35) are symmetrically distributed about the center axis of the oil injection pipe (3), and the insertion groove (35) is matched with the fixed insertion block (34).

Citation Information

Patent Citations

  • Oiling device

    CN217635018U