Flame-retardant explosion-proof automobile roto-mold oil tank

Abstract

The utility model discloses a kind of flame-retardant explosion-proof automobile rotational moulding oil tank, it includes: flame-retardant rotational moulding oil tank main body and explosion-proof bulkhead, the explosion-proof bulkhead is set in the inner cavity of flame-retardant rotational moulding oil tank main body along the length direction of flame-retardant rotational moulding oil tank main body interval, and extend along the width direction of flame-retardant rotational moulding oil tank main body, the top surface of flame-retardant rotational moulding oil tank main body is embedded with the first anticollision strip vertically connected with the top of explosion-proof bulkhead, the bottom surface of flame-retardant rotational moulding oil tank main body is embedded with the second anticollision strip vertically connected with the bottom of explosion-proof bulkhead, the lower part of explosion-proof bulkhead is interval provided with oil hole, the explosion-proof top rod that is set in flame-retardant rotational moulding oil tank main body extends along the length direction of flame-retardant rotational moulding oil tank main body and penetrates explosion-proof bulkhead, ensure flame-retardant performance and compression resistance, reduce deformation risk when colliding from multiple directions, improve explosion-proof effect.

Description

Technical Field

[0001] This utility model relates to the field of rotational molding fuel tank technology, and in particular to a flame-retardant and explosion-proof rotational molding fuel tank for automobiles. Background Technology

[0002] Automobiles are used in a variety of environments and need to deal with complex road conditions and collisions. Therefore, in addition to flame retardancy, automobile fuel tanks also need to have explosion-proof properties.

[0003] Rotationally molded fuel tanks are lightweight, corrosion-resistant, and their design is more adaptable to vehicle models, making them widely used in automotive fuel tanks. However, rotationally molded fuel tanks have low compressive strength, which cannot effectively reduce the risk of deformation during collisions. Moreover, during deformation, the internal pressure of the rotationally molded fuel tank increases rapidly, increasing the risk of fuel vapor explosion, thus requiring improvement. Utility Model Content

[0004] The purpose of this invention is to provide a flame-retardant and explosion-proof automotive rotomolded fuel tank that ensures flame-retardant performance and improves explosion-proof effect.

[0005] To achieve this objective, the present invention adopts the following technical solution: A flame-retardant and explosion-proof automotive rotomolded fuel tank includes: a flame-retardant rotomolded fuel tank body and an explosion-proof partition. The explosion-proof partition is spaced along the length of the flame-retardant rotomolded fuel tank body within its inner cavity and extends along its width. A first anti-collision strip is embedded in the top surface of the flame-retardant rotomolded fuel tank body and perpendicularly connected to the top of the explosion-proof partition. A second anti-collision strip is embedded in the bottom surface of the flame-retardant rotomolded fuel tank body and perpendicularly connected to the bottom of the explosion-proof partition. Oil passage holes are spaced apart in the lower part of the explosion-proof partition. An explosion-proof top rod is provided in the flame-retardant rotomolded fuel tank body, extending along the length of the flame-retardant rotomolded fuel tank body and penetrating the explosion-proof partition.

[0006] The explosion-proof partition is made of stainless steel or aluminum alloy.

[0007] The explosion-proof partition, the first anti-collision strip, and the second anti-collision strip adopt an integrated structure.

[0008] The explosion-proof partition has ventilation holes spaced at intervals on its upper part.

[0009] The flame-retardant rotomolded oil tank body is equipped with an explosion-proof valve on its top.

[0010] The flame-retardant rotomolded oil tank body has a third anti-collision strip at each end along its length, which is connected to the end of the explosion-proof top rod.

[0011] The explosion-proof top rod is made of hollow tube. The explosion-proof partition has through holes corresponding to the explosion-proof top rod, and the explosion-proof partition is welded and fixed to the explosion-proof top rod.

[0012] The beneficial effects of this utility model are as follows: A flame-retardant and explosion-proof automotive rotomolded fuel tank ensures flame-retardant performance through a flame-retardant rotomolded fuel tank body, and enhances pressure and impact resistance by using explosion-proof baffles and explosion-proof top rods. This reduces the risk of deformation during collisions from multiple directions, thereby improving the explosion-proof effect. Moreover, the explosion-proof baffles can limit the range of fuel sloshing during violent driving or collisions, reducing the risk of fuel vapor explosions and making it safer to use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0014] The following is combined Figure 1 The technical solution of this utility model will be further illustrated through specific embodiments.

[0015] A flame-retardant and explosion-proof automotive rotomolded fuel tank includes: a flame-retardant rotomolded fuel tank body 1 and an explosion-proof partition 2. The flame-retardant rotomolded fuel tank body 1 can be rotomolded using glass fiber reinforced flame-retardant PA6, flame-retardant high molecular weight polyethylene or other flame-retardant plastics to ensure flame-retardant effect.

[0016] like Figure 1 As shown, the explosion-proof partition 2 is spaced along the length of the flame-retardant rotomolded oil tank body 1 in the inner cavity of the flame-retardant rotomolded oil tank body 1 and extends along the width of the flame-retardant rotomolded oil tank body 1. The explosion-proof partition supports the flame-retardant rotomolded oil tank body 1 in the width and height directions, thereby improving its compressive and impact resistance in the width and height directions.

[0017] A first anti-collision strip 3 is embedded in the top surface of the flame-retardant rotomolded oil tank body 1 and is perpendicularly connected to the top of the explosion-proof partition 2. A second anti-collision strip 4 is embedded in the bottom surface of the flame-retardant rotomolded oil tank body 1 and is perpendicularly connected to the bottom of the explosion-proof partition 2. The explosion-proof partition 2 is supported and positioned by the first anti-collision strip 3 and the second anti-collision strip 4. Moreover, the first anti-collision strip 3 and the second anti-collision strip 4 are wide, which facilitates the installation of the oil tank and provides good support.

[0018] In this embodiment, the explosion-proof partition 2 is made of stainless steel or aluminum alloy, which is lightweight and has high strength. The explosion-proof partition 2, the first anti-collision strip 3, and the second anti-collision strip 4 adopt an integrated structure, which can be welded for fixation, resulting in high stability. Then, it is placed in a mold for rotational molding of the flame-retardant oil tank body 1, which is convenient for production.

[0019] The explosion-proof partition 2 divides the inner cavity of the flame-retardant rotomolded fuel tank body 1 into multiple relatively independent chambers. This limits the range of fuel sloshing during severe driving or collisions, reducing the risk of fuel vapor explosion and making it safer to use. Figure 1 As shown, oil passage holes 9 are provided at intervals at the lower part of the explosion-proof partition 2, so that fuel in multiple cavities can flow from the bottom.

[0020] In this embodiment, the flame-retardant rotomolded oil tank body 1 is provided with an explosion-proof top rod 5 that extends along the length of the flame-retardant rotomolded oil tank body 1 and penetrates the explosion-proof partition 2. The explosion-proof top rod 5 is made of hollow tube to reduce its weight.

[0021] The explosion-proof partition 2 has through holes corresponding to the explosion-proof top rod 1, facilitating assembly. The explosion-proof partition 2 is welded and fixed to the explosion-proof top rod 1, improving structural stability. In this embodiment, the flame-retardant rotomolded fuel tank body 1 has third anti-collision strips 6 at both ends along its length, which are connected to the ends of the explosion-proof top rod 5. The explosion-proof top rod 5 is welded and fixed to the third anti-collision strips 6, improving the impact resistance of the flame-retardant rotomolded fuel tank body 1 along its length, thereby reducing the risk of deformation during collisions from multiple directions and improving the overall explosion-proof effect.

[0022] like Figure 1 As shown, vent holes 7 are spaced apart on the upper part of the explosion-proof partition 2 to ensure the uniformity of air pressure in multiple cavities and avoid the problem of excessively high air pressure in a single cavity. In this embodiment, an explosion-proof valve 8 is provided on the top of the flame-retardant rotomolded oil tank body 1. The explosion-proof valve 8 can automatically release when the air pressure inside the flame-retardant rotomolded oil tank body 1 is too high, avoiding explosion problems and further improving safety in use.

[0023] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A flame-retardant and explosion-proof rotomolded fuel tank for automobiles, characterized in that, include: The flame-retardant rotomolded oil tank body and the explosion-proof partition are provided. The explosion-proof partition is arranged at intervals along the length of the flame-retardant rotomolded oil tank body in the inner cavity of the flame-retardant rotomolded oil tank body and extends along the width of the flame-retardant rotomolded oil tank body. A first anti-collision strip is embedded in the top surface of the flame-retardant rotomolded oil tank body and is perpendicularly connected to the top of the explosion-proof partition. A second anti-collision strip is embedded in the bottom surface of the flame-retardant rotomolded oil tank body and is perpendicularly connected to the bottom of the explosion-proof partition. Oil passage holes are arranged at intervals in the lower part of the explosion-proof partition. An explosion-proof top rod is provided in the flame-retardant rotomolded oil tank body, extending along the length of the flame-retardant rotomolded oil tank body and penetrating the explosion-proof partition.

2. The flame-retardant and explosion-proof automotive rotomolded fuel tank according to claim 1, characterized in that, The explosion-proof partition is made of stainless steel or aluminum alloy.

3. The flame-retardant and explosion-proof automotive rotomolded fuel tank according to claim 1, characterized in that, The explosion-proof partition, the first anti-collision strip, and the second anti-collision strip adopt an integrated structure.

4. The flame-retardant and explosion-proof automotive rotomolded fuel tank according to claim 1, characterized in that, The explosion-proof partition is provided with ventilation holes at intervals on the upper part.

5. The flame-retardant and explosion-proof automotive rotomolded fuel tank according to claim 1, characterized in that, The flame-retardant rotomolded oil tank body is equipped with an explosion-proof valve on its top.

6. The flame-retardant and explosion-proof automotive rotomolded fuel tank according to claim 1, characterized in that, The flame-retardant rotomolded oil tank body has a third anti-collision strip at each end along its length, which is connected to the end of the explosion-proof top rod.

7. The flame-retardant and explosion-proof automotive rotomolded fuel tank according to claim 1, characterized in that, The explosion-proof top rod is made of hollow tube.

8. The flame-retardant and explosion-proof automotive rotomolded fuel tank according to claim 1, characterized in that, The explosion-proof partition is provided with through holes corresponding to the explosion-proof top rod, and the explosion-proof partition is welded and fixed to the explosion-proof top rod.

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