Fuel tank
By incorporating an anti-theft mechanism consisting of a fuel guide tube and a protective sleeve inside the fuel tank's filling pipe, combined with a baffle plate and an isolation beam, the problem of easy destruction of existing fuel tank anti-theft measures is solved, achieving a more efficient fuel anti-theft effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN DESHI AUTO PARTS CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-05-19
AI Technical Summary
Existing fuel tank anti-theft measures are easily compromised and cannot effectively prevent fuel theft. In particular, the filler neck filter is easily damaged or detached, which cannot effectively prevent the fuel suction pipe from being inserted.
A fuel tank was designed, which includes an anti-theft mechanism inside the fuel injection pipe, comprising a fuel guide cylinder and a protective cylinder, which are rotatably installed via threaded grooves. The fuel guide cylinder has a drain groove and a drain hole inside. Combined with a baffle plate and an isolation beam, a multi-layer anti-theft structure is formed to prevent the fuel injection pipe from being inserted and to prevent impact from foreign objects.
The anti-theft performance of the fuel tank has been improved. The design of the fuel guide tube prevents the insertion of the fuel suction pipe. Combined with the shielding of the baffle plate and the isolation beam, the anti-theft capability of the fuel tank is enhanced, and the damage to the fuel guide tube caused by the impact of foreign objects is reduced.
Smart Images
Figure CN224256450U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fuel tank technology, and in particular to a fuel tank. Background Technology
[0002] A fuel tank is a device used to store the fuel required by the engine of a vehicle or some mechanical equipment. Fuel tanks are usually externally mounted, and their filler caps are generally exposed. Because the fuel stored in the tank has a high value, it is easy for criminals to steal the fuel. Therefore, fuel tanks with anti-theft fuel functions are needed to prevent the fuel in the tank from being stolen.
[0003] In existing technologies, fuel tank anti-theft measures are implemented by installing a lockable fuel tank cap at the fuel filler neck and by installing a filter screen inside the fuel filler neck to prevent fuel pipe insertion and theft. However, the lockable fuel tank cap is easily broken and opened, and the filter screen installed inside the fuel filler neck can detach from the fuel filler neck when impacted by external objects, or be punctured and damaged by sharp objects, causing the filter screen holes to expand and failing to effectively prevent fuel pipe insertion. Therefore, we propose a fuel tank design. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a fuel tank.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fuel tank, including a fuel tank, with a fuel injection pipe fixedly connected to the top of the fuel tank, and an anti-theft mechanism provided inside the fuel injection pipe; an oil guide cylinder is provided inside the anti-theft mechanism, and the oil guide cylinder is used to prevent the fuel injection pipe from being inserted into the fuel tank.
[0006] Preferably, the anti-theft mechanism includes a protective sleeve rotatably installed inside the oil injection pipe, an anti-theft bolt rotatably installed at one end of the protective sleeve, one end of the anti-theft bolt being located inside the oil injection pipe, a pipe cap being fixedly connected inside the protective sleeve, and an oil guide cylinder being rotatably installed at the bottom end inside the oil injection pipe through a threaded groove, with the top end of the oil guide cylinder abutting against the bottom end of the protective sleeve.
[0007] Preferably, the oil guide cylinder has an oil drain groove and an oil drain hole inside, and the oil drain hole is located at one end of the oil drain groove.
[0008] Preferably, a guide plate is fixedly connected inside the oil tank, and a positioning seat is fixedly connected to the inner wall of the guide plate, with one end of the positioning seat abutting against the bottom end of the oil guide cylinder.
[0009] Preferably, a pair of connecting pipes are fixedly connected to the top of the oil tank, and an isolation beam is fixedly connected to the top of the oil tank, with the isolation beam located between the pair of connecting pipes and the oil injection pipe.
[0010] Preferably, the guide vane is L-shaped and the guide vane and the fuel tank are an integral structure.
[0011] Preferably, the oil guide cylinder is shaped like a frustum, and the inner wall of the oil guide cylinder away from the tip of the cone has a concave groove.
[0012] Preferably, a protective plate is fixedly connected to the outer wall of the fuel tank, and a buffer plate is fixedly connected to the top of the inside of the fuel tank.
[0013] Beneficial effects:
[0014] 1. This utility model, through the design of an oil guide cylinder, can block the pipe entering the bottom of the oil filling pipe, preventing pipe insertion and drawing oil from the oil tank, thus providing an anti-theft function. The oil drain groove and drain hole inside the oil guide cylinder facilitate the oil to enter the oil tank through the drain groove and drain hole. The guide plate fixedly connected inside the oil tank, together with the positioning seat fixedly connected to the inner wall of the guide plate, can limit and abut the oil guide cylinder, preventing the oil guide cylinder from detaching from the oil filling pipe due to impact from external objects, further improving the anti-theft capability of the oil in the oil tank. The overall frustum-shaped oil guide cylinder allows the inclined inner wall to guide the impact force when the oil guide cylinder is subjected to external force, causing the impact force directly facing the oil guide cylinder to slide sideways, thereby reducing the impact and damage effect of external objects on the oil guide cylinder, and improving the anti-theft performance of the entire oil tank.
[0015] 2. The pair of connecting pipes fixedly connected at the top of the fuel tank of this utility model can be used to connect the fuel supply pipe and the fuel return pipe of the car. The isolation beam between the connecting pipe and the fuel injection pipe can shield and isolate the connecting pipe. In conjunction with the car chassis structure, the connecting pipe can be shielded to prevent people from stealing fuel from the fuel tank through the connecting pipe. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a three-dimensional sectional view of the present invention;
[0018] Figure 3 for Figure 4 Enlarged schematic diagram of the structure at point A in the diagram;
[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the oil guide cylinder.
[0020] Legend:
[0021] 1. Fuel tank; 2. Fuel filling pipe; 3. Anti-theft mechanism; 4. Connecting pipe; 5. Isolation beam; 6. Protective plate; 7. Buffer plate; 8. Protective sleeve; 9. Anti-theft bolt; 10. Pipe cap; 11. Oil guide cylinder; 12. Flow guide plate; 13. Positioning seat; 14. Grate groove; 15. Oil drain groove; 16. Oil drain hole. Detailed Implementation
[0022] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.
[0023] The specific embodiments of this utility model are described below with reference to the accompanying drawings.
[0024] Reference Figures 1-4 A fuel tank includes a fuel tank 1, with a fuel injection pipe 2 fixedly connected to the top of the fuel tank 1. An anti-theft mechanism 3 is provided inside the fuel injection pipe 2, and an oil guide cylinder 11 is provided inside the anti-theft mechanism 3. The oil guide cylinder 11 is used to prevent the fuel extraction pipe from being inserted into the fuel tank 1.
[0025] The anti-theft mechanism 3 installed inside the oil injection pipe 2 can block the oil injection pipe 2, preventing the oil extraction pipe from being inserted and preventing the oil stored inside the oil tank 1 from being extracted and stolen.
[0026] like Figures 2-4 As shown, the anti-theft mechanism 3 includes a protective sleeve 8 rotatably installed inside the oil injection pipe 2. An anti-theft bolt 9 is rotatably installed at one end of the protective sleeve 8, with one end of the bolt 9 located inside the oil injection pipe 2. A pipe cap 10 is fixedly connected inside the protective sleeve 8. An oil guide cylinder 11 is rotatably installed inside the bottom end of the oil injection pipe 2 via a threaded groove, with the top end of the oil guide cylinder 11 abutting against the bottom end of the protective sleeve 8. An oil drain groove 15 and an oil drain hole 16 are provided inside the oil guide cylinder 11. The oil drain hole 16 is located at one end of the oil drain groove 15. The protective sleeve 8 inside the oil injection pipe 2, in conjunction with the pipe cap 10, allows oil to enter through the oil inlet of the oil injection pipe 2. The sealing process completes the initial anti-theft measures for the fuel tank 1. The oil guide cylinder 11 can block the pipe entering the bottom of the fuel filling pipe 2, preventing the pipe from being inserted and drawing fuel from the fuel tank 1. The oil drain groove 15 and oil drain hole 16 inside the oil guide cylinder 11 facilitate the fuel entering the fuel tank 1 through the oil drain groove 15 and oil drain hole 16 when fuel is added to the fuel tank 1 through the fuel filling pipe 2. The protective cylinder 8 and pipe cover 10 involved in this utility model are lockable fuel tank covers used in combination. They are existing devices and will not be described in detail here.
[0027] like Figure 2 and Figure 3As shown, a guide plate 12 is fixedly connected inside the oil tank 1, and a positioning seat 13 is fixedly connected to the inner wall of the guide plate 12. One end of the positioning seat 13 abuts against the bottom end of the oil guide cylinder 11. Through the guide plate 12 fixedly connected inside the oil tank 1, the positioning seat 13 fixedly connected to the inner wall of the guide plate 12 can limit and abut against the oil guide cylinder 11, preventing the oil guide cylinder 11 from being hit by foreign objects and detaching from the oil filling pipe 2, thus further improving the anti-theft strength of the oil in the oil tank 1.
[0028] like Figure 1 As shown, a pair of connecting pipes 4 are fixedly connected to the top of the fuel tank 1, and an isolation beam 5 is fixedly connected to the top of the fuel tank 1. The isolation beam 5 is located between the pair of connecting pipes 4 and the fuel injection pipe 2. The pair of connecting pipes 4 fixedly connected to the top of the fuel tank 1 can be used to connect the fuel supply pipe and the fuel return pipe of the car. The isolation beam 5 between the connecting pipe 4 and the fuel injection pipe 2 can shield and isolate the connecting pipe 4. In conjunction with the car chassis structure, the connecting pipe 4 is shielded to prevent people from stealing fuel from the fuel tank 1 through the connecting pipe 4.
[0029] like Figure 2 As shown, the guide vane 12 is L-shaped and is an integral structure with the fuel tank 1, which improves the stress resistance of the guide vane 12.
[0030] like Figures 2-4 As shown, the oil guide cylinder 11 is generally truncated cone-shaped. The inner wall of the oil guide cylinder 11 away from the tip of the cone has a concave groove 14. The overall truncated cone shape of the oil guide cylinder 11 allows the inclined inner wall to guide the impact force when the oil guide cylinder 11 is subjected to external force, causing the impact force directly facing the oil guide cylinder 11 to slide sideways, thereby reducing the impact and damage effect of foreign objects on the oil guide cylinder 11 and improving the anti-theft strength of the entire oil tank 1. The concave groove 14 on the inner wall of the oil guide cylinder 11 away from the tip of the cone can be used with a specific tool that matches the concave groove 14 to rotate the oil guide cylinder 11, thereby completing the replacement and maintenance of the oil guide cylinder 11.
[0031] like Figure 1 and Figure 2 As shown, a protective plate 6 is fixedly connected to the outer wall of the oil tank 1, and a buffer plate 7 is fixedly connected to the top of the inside of the oil tank 1. The protective plate 6 fixedly connected to the outer wall of the oil tank 1 can enhance the scratch resistance of the outside of the oil tank 1, and the buffer plate 7 fixedly connected to the inside of the oil tank 1 can block and buffer the shaking oil.
[0032] The working principle of this utility model is as follows: The fuel tank 1 is installed in the fuel tank location of the vehicle. The fuel inlet pipe and fuel return pipe are installed inside the fuel tank 1 through a pair of connecting pipes 4 at the top of the fuel tank 1. When refueling, the pipe cap 10 is opened, and the refueling pipe is inserted into the fuel filling pipe 2 for fuel refueling. The refueled fuel enters the fuel tank 1 through the drain groove 15 and drain hole 16 opened in the fuel guide cylinder 11. After the fuel refueling is completed, the pipe cap 10 is inserted into the protective cylinder 8 and then locked. When a thief steals fuel, the locked pipe cap 10 will prevent the thief from opening the fuel filling pipe 2. When the pipe cap 10 is damaged or opened by unconventional means, the fuel guide cylinder 11 at the bottom of the fuel filling pipe 2 will block the fuel extraction pipe inserted into the fuel filling pipe 2, thereby preventing the insertion of the fuel extraction pipe and thus preventing the theft of fuel.
[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A fuel tank, characterized in that: Includes an oil tank (1), the top of which is fixedly connected to an oil filling pipe (2), and an anti-theft mechanism (3) is provided inside the oil filling pipe (2); The anti-theft mechanism (3) is equipped with an oil guide cylinder (11) inside, which is used to prevent the oil extraction pipe from being inserted into the oil tank (1).
2. A fuel tank according to claim 1, characterized in that: The anti-theft mechanism (3) includes a protective sleeve (8) rotatably installed inside the oil injection pipe (2). An anti-theft bolt (9) is rotatably installed at one end of the protective sleeve (8). One end of the anti-theft bolt (9) is located inside the oil injection pipe (2). A pipe cap (10) is fixedly connected inside the protective sleeve (8). The oil guide cylinder (11) is rotatably installed at the bottom end of the oil injection pipe (2) through a threaded groove, and the top end of the oil guide cylinder (11) abuts against the bottom end of the protective sleeve (8).
3. A fuel tank according to claim 2, characterized in that: The oil guide cylinder (11) has an oil drain groove (15) and an oil drain hole (16) inside, and the oil drain hole (16) is located at one end of the oil drain groove (15).
4. A fuel tank according to claim 3, characterized in that: The oil tank (1) is fixedly connected to a guide plate (12), and a positioning seat (13) is fixedly connected to the inner wall of the guide plate (12). One end of the positioning seat (13) abuts against the bottom of the oil guide cylinder (11).
5. A fuel tank according to claim 1, characterized in that: The top of the oil tank (1) is fixedly connected to a pair of connecting pipes (4), and the top of the oil tank (1) is fixedly connected to an isolation beam (5), which is located between the pair of connecting pipes (4) and the oil injection pipe (2).
6. A fuel tank according to claim 4, characterized in that: The guide plate (12) is L-shaped and is an integral structure with the oil tank (1).
7. A fuel tank according to claim 3, characterized in that: The oil guide cylinder (11) is generally shaped like a frustum, and the inner wall of the oil guide cylinder (11) away from the tip of the cone is provided with a concave groove (14).
8. A fuel tank according to claim 1, characterized in that: The outer wall of the oil tank (1) is fixedly connected with a protective plate (6), and the top of the inside of the oil tank (1) is fixedly connected with a buffer plate (7).