Integrally-formed plastic oil tank

Abstract

The utility model discloses an integrally-formed plastic oil tank which comprises an outer tank used for the plastic oil tank, a main oil tank is arranged in the outer tank, an oil inlet pipe is fixedly connected to the top of the main oil tank, threads are arranged on the circumferential face of the oil inlet pipe, a screwing nut is connected to the circumferential face of the oil inlet pipe in a threaded mode, and the screwing nut is fixedly connected with the main oil tank. An overflow port fixing piece is arranged below the screwing nut, an overflow port rubber sleeve is clamped to the top of the overflow port fixing piece, a left supporting block is fixedly connected to the left side wall of the main oil tank, a left rubber sleeve is connected to the left supporting block in a sleeving mode, and a right supporting block is fixedly connected to the right side wall of the main oil tank; the right supporting block is sleeved with a right rubber sleeve. The main oil tank and the oil inlet pipe are both made of high-density polyethylene materials, the oil tank body and the oil inlet pipe are integrally formed and manufactured through the blow molding process, connecting parts are firmer and not prone to cracking, static electricity is greatly inhibited, and the safety of the plastic oil tank is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gasoline engine oil tanks, in particular to an integrally formed plastic oil tank. Background Art

[0002] A gasoline engine is an internal combustion engine that generates power by burning gasoline. In existing gasoline engine fuel tanks, the fuel inlet pipe and tank body are typically blow-molded together. As a result, the joint between the pipe and the tank body is a vulnerable point and prone to cracking due to the material. Plastic fuel tanks are also prone to static electricity, posing a safety hazard. Furthermore, existing gasoline engine fuel tanks typically have three or four supports on their outer surface, leaving significant room for improvement. Utility Model Content

[0003] The purpose of the utility model is to provide an integrally molded plastic fuel tank, which adopts high-density polyethylene material and adopts a blow molding process to integrally mold the fuel tank body and the fuel inlet pipe, so that the connecting parts are more firm and not easy to crack, and the generation of static electricity is greatly suppressed, thereby improving the safety of the plastic fuel tank. Only two support blocks need to be set on the main fuel tank to stably fix it with the outer box, making the fuel tank process simpler, with fewer structures and lower costs.

[0004] To achieve the above-mentioned purpose, an integrally formed plastic fuel tank is provided, comprising: an outer box for a plastic fuel tank, a main fuel tank is arranged inside the outer box, an oil inlet pipe is fixedly connected to the top of the main fuel tank, a thread is arranged on the circumferential surface of the oil inlet pipe, a tightening nut is threadedly connected to the circumferential surface of the oil inlet pipe, an overflow port fixing piece is provided below the tightening nut, an overflow port rubber sleeve is clamped on the top of the overflow port fixing piece, a left support block is fixedly connected to the left side wall of the main fuel tank, a left rubber sleeve is sleeved on the left support block, a right support block is fixedly connected to the right side wall of the main fuel tank, a right rubber sleeve is sleeved on the right support block, and an oil outlet nozzle is threadedly connected to the bottom of the main fuel tank.

[0005] According to the one-piece plastic fuel tank, the outer box includes a left box and a right box, each of which is provided with a clamping slot, and the main fuel tank is clamped to the outer box via a left support block, a left rubber sleeve, a right support block, and a right rubber sleeve, so as to fix the main fuel tank inside the outer box.

[0006] According to the one-piece plastic fuel tank, the left rubber sleeve and the right rubber sleeve are both made of nitrile rubber, which has good wear resistance and oil resistance and a long service life.

[0007] According to the one-piece plastic oil tank, the left support block and the right support block are asymmetrically arranged to fix the main oil tank.

[0008] According to the one-piece plastic oil tank, the overflow port fixing piece is clamped with the outer box and is located between the tightening nut and the overflow port rubber sleeve, and is used to fix the oil inlet pipe to the outer box.

[0009] According to the one-piece plastic fuel tank, the main fuel tank and fuel inlet pipe are both made of high-density polyethylene and are integrally formed using a blow molding process. This makes the connection between the main fuel tank and the fuel inlet pipe more secure and less prone to cracking, and also significantly suppresses the generation of static electricity, thereby improving the safety of the plastic fuel tank.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. This utility model adopts high-density polyethylene material and adopts blow molding process to make the fuel tank body and fuel inlet pipe into one piece, which makes the connection parts more firm and not easy to crack, and greatly suppresses the generation of static electricity, thereby improving the safety of plastic fuel tanks;

[0012] 2. By setting the left support block, left rubber sleeve, right support block and right rubber sleeve, only two support blocks are needed on the main fuel tank to stably fix it to the outer box, making the fuel tank process simpler, with fewer structures and lower costs.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is an assembly structure diagram of an integrally formed plastic fuel tank of the present utility model;

[0016] Figure 2 This is a cross-sectional view of the assembly structure of an integrally formed plastic fuel tank of the present invention;

[0017] Figure 3 This is a front view of an integrally formed plastic fuel tank of the present utility model;

[0018] Figure 4 This is a top view of an integrally formed plastic fuel tank of the present invention.

[0019] In the figure: 1. Outer box; 2. Main oil tank; 3. Oil inlet pipe; 4. Tightening nut; 5. Overflow port rubber sleeve; 6. Overflow port fixing piece; 7. Left support block; 8. Left rubber sleeve; 9. Right support block; 10. Right rubber sleeve. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution: an integrally formed plastic fuel tank, comprising: an outer box 1 for a plastic fuel tank, a main fuel tank 2 is arranged inside the outer box 1, and an oil inlet pipe 3 is fixedly connected to the top of the main fuel tank 2. The main fuel tank 2 and the oil inlet pipe 3 are both made of high-density polyethylene material and are integrally formed by a blow molding process, so that the connection between the main fuel tank 2 and the oil inlet pipe 3 is more firm and not easy to crack, and it greatly suppresses the generation of static electricity, thereby improving the safety of the plastic fuel tank. A thread is provided on the circumferential surface of the oil inlet pipe 3, and a tightening nut 4 is threadedly connected to the circumferential surface of the oil inlet pipe 3. An overflow port fixing part 6 is provided below the tightening nut 4, and an overflow port fixing part 6 is clamped with an overflow port rubber sleeve 5 on the top of the overflow port fixing part 6. The overflow port fixing part 6 is clamped with the outer box 1, and the overflow port fixing part 6 is located between the tightening nut 4 and the overflow port rubber sleeve 5. The oil inlet pipe 3 is fixed to the outer box 1 through the overflow port rubber sleeve 5 and the overflow port fixing part 6.

[0022] A left support block 7 is fixedly connected to the left side wall of the main oil tank 2, and a left rubber sleeve 8 is sleeved on the left support block 7. A right support block 9 is fixedly connected to the right side wall of the main oil tank 2, and a right rubber sleeve 10 is sleeved on the right support block 9. The left support block 7 and the right support block 9 are asymmetrically arranged. The left rubber sleeve 8 and the right rubber sleeve 10 are both made of nitrile rubber, which has good wear resistance and oil resistance and a longer service life. The outer box 1 includes a left box and a right box, and the left box and the right box are both provided with a card slot. The main oil tank 2 is clamped to the outer box 1 through the left support block 7, the left rubber sleeve 8, the right support block 9 and the right rubber sleeve 10. The bottom of the main oil tank 2 is threadedly connected to an oil outlet.

[0023] Working principle: The main fuel tank 2 is connected to the slot on the outer box 1 through the left support block 7, the left rubber sleeve 8, the right support block 9 and the right rubber sleeve 10, and then the overflow port fixing piece 6 and the overflow port rubber sleeve 5 are put on the oil inlet pipe 3. The overflow port fixing piece 6 is connected to the outer box 1, and then the tightening nut 4 is screwed on to stably fix the main fuel tank 2 inside the outer box 1. The main fuel tank 2 and the oil inlet pipe 3 are both made of high-density polyethylene material and are formed in one piece by blow molding process, so that the connection between the main fuel tank 2 and the oil inlet pipe 3 is more firm and not easy to crack, and it greatly suppresses the generation of static electricity, thereby improving the safety of the plastic fuel tank.

[0024] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An integrally molded plastic fuel tank, comprising: An outer box (1) for a plastic oil tank is characterized in that a main oil tank (2) is provided inside the outer box (1), an oil inlet pipe (3) is fixedly connected to the top of the main oil tank (2), a thread is provided on the circumferential surface of the oil inlet pipe (3), a tightening nut (4) is threadedly connected to the circumferential surface of the oil inlet pipe (3), an overflow port fixing piece (6) is provided below the tightening nut (4), an overflow port rubber sleeve (5) is clamped on the top of the overflow port fixing piece (6), a left support block (7) is fixedly connected to the left side wall of the main oil tank (2), a left rubber sleeve (8) is sleeved on the left support block (7), a right support block (9) is fixedly connected to the right side wall of the main oil tank (2), a right rubber sleeve (10) is sleeved on the right support block (9), and an oil outlet nozzle is threadedly connected to the bottom of the main oil tank (2).

2. The integrally molded plastic fuel tank according to claim 1, characterized in that: The main oil tank (2) and the oil inlet pipe (3) are both made of high-density polyethylene material and are integrally formed using a blow molding process.

3. The integrally molded plastic fuel tank according to claim 1, characterized in that: The outer box (1) comprises a left box and a right box, both of which are provided with a card slot, and the main oil tank (2) is card-connected with the outer box (1) via a left support block (7), a left rubber sleeve (8), a right support block (9) and a right rubber sleeve (10).

4. The integrally molded plastic fuel tank according to claim 1, characterized in that: The overflow port fixing member (6) is snap-connected to the outer box (1), and the overflow port fixing member (6) is located between the tightening nut (4) and the overflow port rubber sleeve (5).

5. The integrally molded plastic fuel tank according to claim 1, characterized in that: The left rubber sleeve (8) and the right rubber sleeve (10) are both made of nitrile rubber.

6. The integrally molded plastic fuel tank according to claim 1, characterized in that: The left support block (7) and the right support block (9) are arranged asymmetrically.

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