External double-layer independent reserve oil tank
By installing an operating room and oil level gauge inside an external double-layer independent oil storage tank, and equipping it with an oil pumping mechanism, the problem of inaccurate oil quantity control is solved, ensuring precise loading, unloading and extraction of diesel fuel, and improving the working efficiency of construction machinery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU ITC POWER EQUIP MFG CO LTD
- Filing Date
- 2023-12-25
- Publication Date
- 2026-04-17
AI Technical Summary
The existing external double-layer independent fuel tank cannot accurately control the amount of fuel during the filling and pumping process, which may cause diesel fuel to overflow or fail to stop in time when the fuel level is low, affecting the working efficiency of construction machinery.
An external double-layer independent oil storage tank was designed. The top of the inner tank is equipped with an operating room, an electronic oil level gauge and a mechanical oil level gauge, and a protective shell is installed below it. Combined with the oil pumping mechanism, this ensures the accuracy and convenience of oil level monitoring.
It enables precise monitoring of oil levels, prevents diesel spills, and allows for timely shutdown, thereby improving the working efficiency of construction machinery.
Smart Images

Figure CN224134747U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fuel tanks, specifically relating to an external double-layer independent fuel tank. Background Technology
[0002] With the development of society, there are more and more engineering construction projects in the field in my country. During the construction process, a lot of engineering machinery is needed to operate. In the process of operation, diesel is needed to provide sufficient power for the engineering machinery. The endurance of engineering machinery is an important issue to consider. However, the fuel tanks of engineering machinery have a certain capacity. When the fuel tank is exhausted, it will seriously affect the progress of the project. Therefore, a large amount of spare diesel needs to be left at the work site. At this time, an independent reserve fuel tank is needed to store fuel for backup.
[0003] While existing external double-layer independent fuel tanks can meet the requirements for diesel fuel loading and extraction, precise monitoring of the fuel level is necessary during both processes. However, most fuel tanks are made of opaque materials, making it difficult to visually inspect the fuel level. This can lead to diesel spillage during loading or failure to stop and replace the fuel tank promptly when the level is low during extraction, thus reducing the efficiency of the construction machinery. Therefore, an external double-layer independent fuel tank needs to be designed to solve these problems. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides an external double-layer independent oil tank to address the issue of not being able to accurately control the amount of oil in the tank as mentioned in the background art.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] An external double-layer independent oil storage tank includes an inner oil tank for filling oil. The bottom of the inner oil tank is provided with a base, and an outer box is provided on the outside of the inner oil tank. The top of the inner oil tank is a stepped top cover, which includes a first top cover and a second top cover. The first top cover completely covers the inner oil tank, and the second top cover is lower than the first top cover. An operating chamber is provided on the first top cover inside the operating chamber. An oil inlet pipe, an oil tank lock, an electronic oil level gauge, a mechanical oil level gauge, several oil outlet pipes, and several oil return pipes are installed on the first top cover inside the operating chamber. A through hole is opened on the first top cover above the second top cover inside the operating chamber. A movable cover is hinged above the operating chamber.
[0007] As a further improvement to this utility model, protective shells are provided around the electronic oil level gauge and the mechanical oil level gauge located below the first top cover. The protective shell is composed of two sets of half shells. The protective shell abuts against the bottom end of the inner wall of the inner oil tank. Two sets of through holes are opened opposite each other at the bottom end of the protective shell.
[0008] As a further improvement to this utility model, the protective shell is provided with two sets of ventilation holes near the first top cover.
[0009] As a further improvement to this utility model, the protective shell shape includes a cuboid shape or a cylindrical shape with an internal hollow structure.
[0010] As a further improvement to this utility model, the upper end of the second top cover is provided with a battery and an oil extraction mechanism. The oil extraction mechanism includes an oil extraction motor that drives the oil to be extracted outward, an oil extraction tank provided on the oil extraction motor, a connecting pipe that connects the oil extraction tank to the oil outlet pipe, and a connecting port provided at the oil outlet end of the oil extraction tank.
[0011] As a further improvement to this utility model, a control switch is installed at the end of the oil pumping motor away from the oil tank.
[0012] As a further improvement to this utility model, an oil extraction pipe is provided below the oil outlet pipe, and a filter pipe is threadedly installed at the bottom end of the oil extraction pipe, with a plurality of filter holes opened in the wall of the filter pipe.
[0013] As a further improvement to this utility model, a filter screen is installed below the oil inlet pipe, and an oil inlet cap is threadedly connected above the oil inlet pipe.
[0014] As a further improvement to this utility model, the side wall of the operating chamber is provided with a square hole for easy lifting of the movable cover.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] This utility model provides an operating room on the top cover of the inner oil tank, and an electronic oil level gauge and a mechanical oil level gauge are installed in the operating room. The two oil level gauges work together to accurately control the oil level in the tank, and even if one of them is broken, it will not affect the monitoring of the oil level.
[0017] This invention protects the oil level gauge from external oil sloshing by installing a protective shell below the electronic and mechanical oil level gauges.
[0018] This invention provides an oil extraction mechanism installed in the operating room, making it convenient to extract oil from the oil tank without the need for additional oil extraction equipment. Attached Figure Description
[0019] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 This is a three-dimensional structural diagram of the inner oil tank of this utility model;
[0022] Figure 3 This is a top view of the structure of this utility model;
[0023] Figure 4 This is a three-dimensional structural diagram of the first top cover of this utility model.
[0024] The names represented by the part numbers in the above four schematic diagrams are as follows:
[0025] 1. Inner oil tank; 2. First top cover; 21. Control chamber; 211. Movable cover; 212. Square hole; 22. Oil inlet pipe; 221. Filter screen; 222. Oil inlet cover; 23. Electronic oil level gauge; 24. Mechanical oil level gauge; 25. Oil outlet pipe; 251. Oil extraction pipe; 252. Filter pipe; 26. Oil return pipe; 27. Oil tank lock; 3. Second top cover; 31. Battery; 32. Oil extraction mechanism; 321. Oil extraction motor; 322. Oil extraction tank; 323. Connecting pipe; 324. Connection port; 325. Control switch; 4. Protective shell; 41. Through hole; 42. Vent hole; 5. Base; 6. Outer casing. Detailed Implementation
[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0027] The present invention provides the following embodiments:
[0028] An external double-layer independent oil storage tank includes an inner oil tank 1 for filling oil. The bottom of the inner oil tank 1 is equipped with a base 5, and an outer casing 6 is located on the outside of the inner oil tank 1. The top of the inner oil tank 1 is a stepped top cover, comprising a first top cover 2 and a second top cover 3. The first top cover 2 completely covers the inner oil tank 1, while the second top cover 3 is lower than the first top cover 2. An operating chamber 21 is located on the first top cover 2. A square hole 212 is provided on the side wall of the operating chamber 21 to facilitate lifting the movable cover 211. When opening the operating chamber 21, a hand needs to be placed into the square hole 212. An oil inlet pipe 22, an oil tank lock 27, an electronic oil level gauge 23, and a mechanical oil level gauge 24 are installed on the first top cover 2 inside the operating chamber 21. 4. Several oil outlet pipes 25 and several oil return pipes 26. The first top cover 2 above the second top cover 3 inside the operating chamber 21 has a through hole 41. A movable cover 211 is hinged to the top of the operating chamber 21. An oil extraction pipe 251 is provided below the oil outlet pipe 25. A filter pipe 252 is threaded at the bottom end of the oil extraction pipe 251. Several filter holes are opened on the pipe wall of the filter pipe 252. The filter holes can filter out impurities in the oil in the tank, so that the extracted oil is pure and prevent impurities from entering the equipment. A filter screen 221 is installed below the oil inlet pipe 22. An oil inlet cover 222 is threaded on the top of the oil inlet pipe 22. The filter screen 221 can prevent impurities from entering the tank when the oil is introduced.
[0029] The electronic oil level gauge 23 located below the first top cover 2 and the mechanical oil level gauge 24 are both provided with protective shells 4. The protective shell 4 is composed of two sets of half shells. The protective shell 4 abuts against the bottom of the inner wall of the inner oil tank 1. The bottom of the protective shell 4 has two sets of through holes 41. The protective shell 4 has two sets of vent holes 42 near the first top cover 2. The vent holes 42 can ensure that the air pressure inside and outside the protective shell 4 is the same, which can protect the protective shell 4. The shape of the protective shell 4 includes a rectangular prism shape or a cylindrical shape with an internal hollow structure.
[0030] The upper end of the second top cover 3 is provided with a battery 31 and an oil extraction mechanism 32. The oil extraction mechanism 32 includes an oil extraction motor 321 that drives the oil to be extracted outward, an oil extraction tank 322 provided on the oil extraction motor 321, a connecting pipe 323 that connects the oil extraction tank 322 to the oil outlet pipe 25, and a connecting port 324 provided at the oil outlet end of the oil extraction tank 322. A control switch 325 is installed at the end of the oil extraction motor 321 away from the oil extraction tank 322. When oil extraction is required, only the control switch 325 needs to be pressed.
[0031] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An external double-layer independent oil storage tank, comprising an inner oil tank (1) for storing oil, wherein the bottom of the inner oil tank (1) is provided with a base (5), and an outer casing (6) is provided on the outside of the inner oil tank (1), characterized in that The inner oil tank (1) has a stepped top cover, which includes a first top cover (2) and a second top cover (3). The first top cover (2) completely covers the inner oil tank (1), and the second top cover (3) is lower than the first top cover (2). An operating chamber (21) is provided on the first top cover (2). An oil inlet pipe (22), an oil tank lock (27), an electronic oil level gauge (23), a mechanical oil level gauge (24), several oil outlet pipes (25), and several oil return pipes (26) are installed on the first top cover (2) inside the operating chamber (21). A through hole (41) is opened on the first top cover (2) above the second top cover (3) inside the operating chamber (21). A movable cover (211) is hinged above the operating chamber (21).
2. The external dual-layer self-contained reservoir tank of claim 1, wherein: The outer periphery of the electronic oil level gauge (23) and the outer periphery of the mechanical oil level gauge (24) located below the first top cover (2) are provided with protective shells (4). The protective shells (4) are composed of two sets of half shells. The protective shells (4) abut against the bottom of the inner wall of the inner oil tank (1). The bottom of the protective shells (4) is provided with two sets of through holes (41).
3. The external dual-layer self-contained reservoir tank of claim 2, wherein: The protective shell (4) has two sets of ventilation holes (42) facing each other near the first top cover (2).
4. The external dual-layer self-contained reservoir tank of claim 3, wherein: The protective shell (4) has a shape including a cuboid or a cylinder with an internal hollow structure.
5. The external dual-layer self-contained reservoir tank of claim 4, wherein: The upper end of the second top cover (3) is provided with a battery (31) and an oil extraction mechanism (32). The oil extraction mechanism (32) includes an oil extraction motor (321) that drives the oil to be extracted outward, an oil extraction tank (322) provided on the oil extraction motor (321), a connecting pipe (323) that connects the oil extraction tank (322) to the oil outlet pipe (25), and a connecting port (324) provided at the oil outlet end of the oil extraction tank (322).
6. The external dual-layer self-contained reservoir tank of claim 5, wherein: A control switch (325) is installed at the end of the oil pumping motor (321) away from the oil tank (322).
7. The external double-layer independent oil storage tank according to claim 6, characterized in that: Below the oil outlet pipe (25) is an oil extraction pipe (251), and a filter pipe (252) is threaded at the bottom end of the oil extraction pipe (251). The filter pipe (252) has several filter holes on its wall.
8. The external dual-layer self-contained reservoir tank of claim 7, wherein: A filter screen (221) is installed below the oil inlet pipe (22), and an oil inlet cap (222) is threadedly connected above the oil inlet pipe (22).
9. The external dual-layer self-contained reservoir tank of claim 8, wherein: The side wall of the operating chamber (21) is provided with a square hole (212) for easy lifting of the movable cover (211).