Rapid oil injection mechanism of excavator

By designing a rapid oil injection mechanism for excavators that includes a base, support cylinder, support tooth plate, storage compartment, spiral tube, hose and control components, the problems of laborious oil injection and overflow in rugged environments are solved, and a convenient and fast oil injection process is achieved.

CN223983463UActive Publication Date: 2026-03-10LAIZHOU LUSU HEAVY IND MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

In rugged or uneven environments, traditional fuel pumps are difficult to move, making it laborious to pour fuel by tilting the tank and difficult to observe the fuel tank status, which can easily lead to overflow.

Method used

A rapid oil filling mechanism was designed, comprising a base, a support cylinder, a support toothed plate, a storage compartment, a spiral tube, a hose, a steel pipe, and a control component. The oil drum is fixed in position by the support device, and the oil flow is automatically controlled by the control component, eliminating the need to manually lift the oil drum and achieving convenient oil filling and automatic stop.

Benefits of technology

It enables a convenient and rapid oil injection process on uneven terrain, avoiding oil spillage and improving oil injection efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The rapid oil injection mechanism comprises a base, a supporting cylinder is fixed to the base, a supporting toothed plate is connected into the supporting cylinder in a sliding mode, a storage bin is arranged on one side of the top of the supporting toothed plate, and an oil drum is placed in the storage bin. The device is moved to the position near an excavator oil tank, then the position of the storage bin is adjusted, after the position of the storage bin is adjusted to be higher than the excavator oil tank, a bottle cap on a barrel opening of an oil barrel is taken down, then the solenoid is in threaded connection with the barrel opening of the oil barrel, the oil barrel is inversely placed in the storage bin, and oil injection can be conducted. According to the mode, a worker does not need to carry an oil drum for oil injection, oil injection is more convenient and faster, at present, when the worker carries the oil drum for oil injection, labor is wasted, the worker needs to have a rest and adjust in the oil injection process, and the oil injection speed is affected, the whole operation process of the device is very convenient, and the worker does not need to carry the oil drum for oil injection. And oil can be continuously injected, so that the oil injection speed is higher.
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Description

Technical Field

[0001] This utility model relates to the field of excavator oiling technology, and in particular to a rapid oiling mechanism for excavators. Background Technology

[0002] An excavator, also known as a bulldozer, is a type of earthmoving machinery that uses a bucket to excavate materials above or below the machine's bearing surface and load them into transport vehicles or unload them into a stockpile. It is primarily used for excavating soil, coal, silt, and pre-loosened soil and rock, and is one of the most important pieces of construction machinery in engineering projects.

[0003] When excavators need refueling, the traditional method is to go to a gas station. However, excavators often operate in remote environments with inconvenient transportation. Therefore, excavators and other construction machinery often use buckets for refueling. Construction sites usually store spare fuel buckets, and when refueling is needed, the fuel from the buckets is simply poured into the excavator's fuel tank. There are two main methods for pouring fuel from buckets into the excavator's fuel tank: pump suction and tilting. In spacious, flat areas where a mobile refueling pump is easily accessible, the pump method is primarily used. When refueling, the fuel pump is very heavy. In places where the road is rugged, uneven, or inconvenient to move the fuel pump, it is usually necessary to lift the fuel drum to the excavator's fuel tank and pour the fuel from the drum into the excavator's fuel tank by tilting. However, when tilting, the fuel drum is initially full of fuel, which can easily cause the fuel to overflow. Moreover, the worker needs to keep holding the fuel drum and gradually lift the bottom of the drum to pour it out, which is very strenuous. In addition, it is difficult to observe the situation inside the excavator's fuel tank when tilting, and sometimes the tank will overflow even when it is full. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] In view of this, the purpose of this utility model is to propose a quick oil filling mechanism for excavators. The technical problem to be solved is that because the oil pump is very heavy, in some uneven places where it is inconvenient to move the oil pump, it is usually necessary to lift the oil drum to the excavator's oil tank and pour the oil from the drum into the excavator's oil tank by tilting. However, when tilting, the oil drum is initially full of oil, which easily causes oil to overflow. Moreover, the worker needs to keep holding the oil drum and gradually lift the bottom of the drum to tilt it, which is very laborious. In addition, it is difficult to observe the situation inside the excavator's oil tank when tilting, and sometimes the tank overflows after being filled to capacity.

[0006] (II) Technical Solution

[0007] To achieve the above technical objectives, this utility model provides a rapid oil injection mechanism for excavators:

[0008] It includes a base, on which a support cylinder is fixed. A support toothed plate is slidably connected inside the support cylinder. A storage compartment is provided on one side of the top of the support toothed plate. An oil drum is placed inside the storage compartment. A screw tube is threadedly connected to the mouth of the oil drum. A flexible hose is fixed and connected to the screw tube. A steel pipe is fixed and connected to the end of the flexible hose away from the screw tube. A movable sleeve is fitted on the outside of the steel pipe. A baffle is fixed inside the steel pipe. A conical groove is formed in the baffle. A conical plug capable of blocking the conical groove is provided inside the steel pipe. A control component is provided on the movable sleeve to control whether the conical plug blocks the conical groove.

[0009] Preferably, the control component includes a retaining ring fixed to the outside of the steel pipe, an annular plate fixed to one end of the movable sleeve near the retaining ring, the movable sleeve and the annular plate slidingly fitting on the outside of the steel pipe, a connecting rod fixed to one side of the conical plug, a plurality of brackets fixed to one end of the connecting rod away from the conical plug, and the end of the bracket away from the connecting rod fixed to the movable sleeve.

[0010] Preferably, a spring is fitted on the outside of the steel pipe, with one end of the spring abutting against the retaining ring and the other end of the spring abutting against the annular plate.

[0011] Preferably, the diameter of the conical groove and the conical plug gradually decreases from the steel pipe toward the moving sleeve, and the bottom of the storage compartment is provided with a through groove for the oil drum opening, the screw pipe, and the hose to pass through.

[0012] Preferably, a connecting plate is fixed to the top of the supporting tooth plate, the connecting plate is fixed to the storage compartment, two guide cylinders are fixed on the base, a guide rod is slidably connected inside the guide cylinder, a connecting column is fixed to the top of the guide rod, and the connecting column is fixed to the storage compartment.

[0013] Preferably, the top of the support cylinder is fixed and connected to an inner concave plate, and a positioning toothed plate is slidably connected inside the inner concave plate, and the positioning toothed plate and the support toothed plate mesh with each other. A screw is rotatably connected to one side of the positioning toothed plate, and the screw passes through the inner concave plate and is threadedly connected to the inner concave plate.

[0014] As can be seen from the above technical solutions, this application has the following beneficial effects:

[0015] 1. For locations with rugged, uneven roads where it's inconvenient to move the fuel pump, this device can be used to refuel excavators. To use, move the device near the excavator's fuel tank, then adjust the position of the receiving compartment to be higher than the excavator's fuel tank. Remove the cap from the fuel can opening, connect the threaded hose to the fuel can opening, and then invert the fuel can into the receiving compartment to refuel. This method eliminates the need for workers to manually carry the fuel can, making refueling much more convenient. Currently, manually carrying the fuel can is very strenuous, requiring breaks and adjustments during refueling, which affects the refueling speed. This device, however, offers a much more convenient operation, eliminating the need for workers to manually carry the fuel can and enabling continuous refueling for faster speeds.

[0016] 2. When filling with oil, move the annular plate towards the retaining ring. As the annular plate moves, it drives the moving sleeve to move, which in turn drives the connecting rod to move. The connecting rod then drives the conical plug to move. When the conical plug moves to the point where it no longer blocks the conical groove, the oil in the oil drum is injected into the excavator's oil tank through the hose, steel pipe, conical groove, and moving sleeve. Since it is not necessary to hold the oil drum at this time, it is convenient to observe the oil filling situation in the tank. When it is almost full, release the annular plate. At this time, under the spring rebound force and the impact force of the oil, the conical plug will block the conical groove, thus immediately stopping the oil filling and preventing oil spillage. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of a rapid oil injection mechanism for an excavator provided by this utility model;

[0019] Figure 2 Another perspective structural schematic diagram of a rapid oil injection mechanism for an excavator provided by this utility model;

[0020] Figure 3 Provided by this utility model Figure 2 Schematic diagram of the structure at point A;

[0021] Figure 4 A cross-sectional structural diagram of the steel pipe and movable sleeve provided by this utility model;

[0022] Figure 5 A schematic diagram showing the disassembled structure of a rapid oil injection mechanism for an excavator provided by this utility model;

[0023] Figure 6 Another perspective structural schematic diagram of a rapid oil injection mechanism for an excavator provided by this utility model;

[0024] Figure 7 Provided by this utility model Figure 6 A schematic diagram of the structure at point B.

[0025] Attached Figure Descriptions: 1. Base; 2. Support Cylinder; 3. Support Toothed Plate; 4. Storage Compartment; 5. Oil Drum; 6. Screw Tube; 7. Hose; 8. Steel Pipe; 9. Moving Sleeve; 10. Baffle; 11. Conical Groove; 12. Conical Plug; 13. Connecting Rod; 14. Bracket; 15. Retaining Ring; 16. Annular Plate; 17. Spring; 19. Through Groove; 20. Connecting Plate; 21. Guide Cylinder; 22. Guide Rod; 23. Connecting Column; 24. Concave Plate; 25. Positioning Toothed Plate; 26. Screw. Detailed Implementation

[0026] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of the various embodiments of this disclosure. Certain details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures.

[0027] Reference Figure 1-7 :

[0028] In one embodiment of this utility model, a rapid oil injection mechanism for an excavator is provided, including a base 1, a support cylinder 2 fixed on the base 1, a support tooth plate 3 slidably connected inside the support cylinder 2, a storage compartment 4 provided on one side of the top of the support tooth plate 3, an oil drum 5 placed inside the storage compartment 4, a threaded tube 6 threadedly connected to the mouth of the oil drum 5, a flexible hose 7 fixed and connected to the threaded tube 6, a steel pipe 8 fixed and connected to the end of the flexible hose 7 away from the threaded tube 6, a movable sleeve 9 sleeved on the outside of the steel pipe 8, a baffle 10 fixed inside the steel pipe 8, a conical groove 11 opened in the baffle 10, a conical plug 12 capable of blocking the conical groove 11 provided inside the steel pipe 8, and a control component provided on the movable sleeve 9 for controlling whether the conical plug 12 blocks the conical groove 11.

[0029] The supporting toothed plate 3 has a connecting plate 20 fixed on its top, which is fixed to the storage compartment 4. The base 1 has two guide cylinders 21 fixed on its top, and a guide rod 22 is slidably connected inside the guide cylinder 21. A connecting column 23 is fixed on the top of the guide rod 22, which is fixed to the storage compartment 4. The supporting cylinder 2 has an inner concave plate 24 fixed and connected to its top. A positioning toothed plate 25 is slidably connected inside the inner concave plate 24, and the positioning toothed plate 25 meshes with the supporting toothed plate 3. A screw 26 is rotatably connected to one side of the positioning toothed plate 25. The screw 26 passes through the inner concave plate 24 and is threadedly connected to the inner concave plate 24.

[0030] For locations with rugged, uneven roads where it's inconvenient to move the fuel pump, this device can be used to refuel excavators. To use it, move the device near the excavator's fuel tank, ensuring the base 1 is flush with the ground. Then, rotate the screw 26 to move the positioning toothed plate 25. When the positioning toothed plate 25 moves into the concave plate 24, separating it from the support toothed plate 3, the support toothed plate 3 can be moved upwards. This upward movement of the support toothed plate 3 causes the receiving chamber 4 to move upwards, thus adjusting its position. Once the receiving chamber 4 is higher than the excavator's fuel tank, rotate the screw 26 in the opposite direction to move the positioning toothed plate 25 closer to the support toothed plate 3. When the positioning toothed plate 25 and the support toothed plate 3 engage, the support toothed plate 3 is fixed. Then, remove the cap from the oil drum 5, connect the screw tube 6 to the opening of the oil drum 5, and invert the oil drum 5 into the receiving chamber 4. At this point, one worker holds the support cylinder 2 and guide cylinder 21 while another worker performs the refueling.

[0031] In addition, the control components include a retaining ring 15 fixed to the outside of the steel pipe 8, an annular plate 16 fixed to one end of the movable sleeve 9 near the retaining ring 15, the movable sleeve 9 and the annular plate 16 slidingly fitting on the outside of the steel pipe 8, a connecting rod 13 fixed to one side of the conical plug 12, a plurality of brackets 14 fixed to one end of the connecting rod 13 away from the conical plug 12, the end of the bracket 14 away from the connecting rod 13 fixed to the movable sleeve 9, a spring 17 sleeved on the outside of the steel pipe 8, one end of the spring 17 abutting against the retaining ring 15, and the other end of the spring 17 abutting against the annular plate 16. It should be noted that in the normal state, the conical plug 12 blocks the conical groove 11. The cross-sectional diameter of the conical groove 11 and the conical plug 12 gradually decreases from the steel pipe 8 toward the movable sleeve 9. The bottom of the storage compartment 4 is provided with a through groove 19 through which the oil tank 5 opening, the screw pipe 6, and the hose 7 pass.

[0032] During oil filling, first, the movable sleeve 9 is extended into the excavator's oil tank. Then, the annular plate 16 is moved towards the retaining ring 15. At this time, the annular plate 16 compresses the spring 17. As the annular plate 16 moves, it drives the movable sleeve 9 to move. As the movable sleeve 9 moves, it drives the connecting rod 13 to move. As the connecting rod 13 moves, it drives the conical plug 12 to move. When the conical plug 12 moves to the point where it no longer blocks the conical groove 11, the oil in the oil drum 5 is injected into the excavator's oil tank through the hose 7, steel pipe 8, conical groove 11, and movable sleeve 9. There is no need to hold the oil drum 5 by hand, making it convenient to observe the oil filling status in the oil tank. When it is about to be full, the annular plate 16 is released. At this time, under the rebound force of the spring 17 and the impact force of the oil, the conical plug 12 will block the conical groove 11, thus stopping the oil filling immediately and preventing oil spillage. Moreover, the whole operation process is very convenient. There is no need for workers to hold the oil drum 5 by hand to fill the oil. Currently, when workers hold the oil drum 5 by hand to fill the oil, it is very strenuous. They need to rest and adjust during the filling process, and the filling speed will also be affected.

[0033] The exemplary implementation of the solution proposed in this disclosure has been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A quick oiling mechanism of an excavator comprising a base (1), characterized in that, The base (1) is fixed with a support cylinder (2), the support cylinder (2) is slidably connected with a support toothed plate (3), one side of the top of the support toothed plate (3) is provided with a storage bin (4), the storage bin (4) is placed with an oil drum (5), the oil drum (5) is threadedly connected with a spiral pipe (6) at the barrel opening, the spiral pipe (6) is fixedly connected with a hose (7) and communicates, the hose (7) is fixedly connected with a steel pipe (8) away from the spiral pipe (6) and communicates, the steel pipe (8) is sleeved with a moving sleeve (9) on the outside, the steel pipe (8) is fixedly connected with a baffle (10) inside, the baffle (10) is provided with a tapered slot (11) inside, the steel pipe (8) is provided with a tapered plug (12) capable of plugging the tapered slot (11), the moving sleeve (9) is provided with a control assembly for controlling whether the tapered plug (12) plugs the tapered slot (11).

2. A quick oiling mechanism for an excavator according to claim 1, wherein The control assembly comprises a stop ring (15) fixed on the outside of the steel pipe (8), one end of the moving sleeve (9) close to the stop ring (15) is fixedly connected with an annular plate (16), the moving sleeve (9) and the annular plate (16) are slidably connected on the outside of the steel pipe (8), one side of the tapered plug (12) is fixedly connected with a connecting rod (13), one end of the connecting rod (13) away from the tapered plug (12) is fixedly connected with a plurality of supports (14), and the supports (14) away from the connecting rod (13) are fixedly connected with the moving sleeve (9).

3. A quick oiling mechanism for an excavator according to claim 2, wherein The steel pipe (8) is sleeved with a spring (17) on the outside, one end of the spring (17) abuts against the stop ring (15), and the other end of the spring (17) abuts against the annular plate (16).

4. The quick oiling mechanism of claim 1, wherein The cross-sectional diameter of the tapered slot (11) and the tapered plug (12) gradually decreases from the steel pipe (8) to the moving sleeve (9), and the bottom of the storage bin (4) is provided with a through groove (19) for the barrel opening of the oil drum (5), the spiral pipe (6) and the hose (7).

5. The quick oiling mechanism of claim 1, wherein The top of the support toothed plate (3) is fixedly connected with a connecting plate (20), the connecting plate (20) is fixedly connected with the storage bin (4), the base (1) is fixedly connected with two guide cylinders (21), the guide cylinders (21) are slidably connected with guide rods (22) inside, the guide rods (22) are fixedly connected with connecting columns (23) at the top, and the connecting columns (23) are fixedly connected with the storage bin (4).

6. A quick oiling mechanism for an excavator according to claim 5, wherein The top of the support cylinder (2) is fixedly connected with an inner recessed plate (24) and communicates, the inner recessed plate (24) is slidably connected with a positioning toothed plate (25) inside, the positioning toothed plate (25) is engaged with the support toothed plate (3), one side of the positioning toothed plate (25) is rotatably connected with a screw rod (26), and the screw rod (26) penetrates through the inner recessed plate (24) and is threadedly connected with the inner recessed plate (24).