Rotational molding frame type fuel tank

Abstract

The utility model relates to a rotational molding frame type fuel tank. According to the fuel tank, vertical supporting grooves which are communicated with one another are formed in the side wall of the top and the side walls of the two transverse sides of a fuel tank body, front transverse supporting grooves which are communicated with one another are formed in the side wall of the front portion and the side walls of the two transverse sides of the fuel tank body, and rear transverse supporting grooves which are communicated with one another are formed in the side wall of the rear portion and the side walls of the two transverse sides of the fuel tank body; a support base plate; the supporting frame comprises vertical supporting ribs, vertical inserting openings are formed in the bottoms of the vertical supporting ribs, the vertical supporting ribs are embedded into the vertical supporting grooves through the vertical inserting openings, and the two ends of each inserting opening are fixed to the supporting bottom plate; the oil tank baffle comprises a top baffle body used for covering the top wall face of the oil tank and a front baffle body used for covering the front wall face of the oil tank, and the front baffle body is fixed to the vertical supports through front connecting lugs; and inlaying protrusions used for being embedded into the transverse supporting grooves in the rear portion are arranged on the fuel tank back plate in an array mode.

Description

Technical Field

[0001] The utility model relates to a rotationally molded frame type fuel tank, belonging to the field of vehicle accessories. Background Art

[0002] Traditional fuel tanks use all-plastic or all-steel structures. The all-plastic structure has limited strength and is easily affected by the environment and expands or contracts. The reciprocating movement will affect the strength and safety of the tank. The all-steel tank has a large weight and affects the vehicle's endurance. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the technical problems in the prior art and provide a rotationally molded frame type fuel tank.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A rotationally molded frame fuel tank; comprising:

[0006] The fuel tank body, the top side wall of the fuel tank body and the side walls on both sides of the transverse direction are provided with mutually connected vertical support grooves, the front side wall of the fuel tank body and the side walls on both sides of the transverse direction are provided with mutually connected front transverse support grooves, the rear side wall of the fuel tank body and the side walls on both sides of the transverse direction are provided with mutually connected rear transverse support grooves, the front transverse support groove, the rear transverse support groove and the vertical support groove are mutually connected, and there are at least two groups of transverse support grooves and vertical support grooves;

[0007] A supporting bottom plate, which is arranged on the bottom side wall of the oil tank body;

[0008] A support frame, the support frame includes vertical support ribs, wherein a vertical plug opening is provided at the bottom of the vertical support ribs, the vertical support ribs are embedded in the vertical support grooves through the vertical plug openings, and both ends of the plug openings are fixed to the support bottom plate;

[0009] The fuel tank baffle includes a top baffle for covering the top wall of the fuel tank and a front baffle for covering the front wall of the fuel tank, the front baffle is fixed to the vertical support through a front connecting ear, the top baffle is fixed to the vertical support rib through a top connecting ear, and the ends of the front baffle and the top baffle are fixedly contacted with each other;

[0010] The fuel tank back plate is provided with an array of inlay protrusions for embedding into the rear transverse support grooves, and rear connecting ears are provided on both lateral sides of the fuel tank back plate, and the rear connecting ears are fixed to the vertical support ribs by bolts.

[0011] As a further improvement of the utility model, an integrated plug-in protrusion is provided at the bottom of the fuel tank body; a plug-in groove is provided on the supporting bottom plate; the plug-in groove can achieve a tight connection with the bottom of the fuel tank and reduce the free sliding of the bottom of the fuel tank body relative to the supporting bottom plate.

[0012] As a further improvement of the present invention, the top baffle and the front baffle are an integrated bending structure, and the integrated bending structure has higher strength, better force transmission performance, and stronger front impact resistance performance.

[0013] As a further improvement of the utility model, a connector plug-in hole is provided on the top baffle, a plug-in connector with a metal tube structure is fixed at the position of the plug-in hole, and an oil supply connector is integrally arranged on the top of the fuel tank body, and the oil supply connector is fixed in the plug-in connector; the plug-in connector uses a metal structure to assist the connector on the fuel tank body, thereby improving the strength and life.

[0014] As a further improvement of the present invention, at least two groups of connecting columns are arranged in an array on the back of the fuel tank body, screw sleeves are integrally embedded in the connecting columns, and fixing holes cooperating with the connecting columns are provided on the back plate of the fuel tank. The fuel tank body is fixed relative to the back plate of the fuel tank by bolts fixed in the screw sleeves, thereby improving the bonding strength between the back plate and the fuel tank and improving the stability of the mounting.

[0015] The beneficial effects of the utility model are:

[0016] The utility model arranges inlay grooves on the surface of the rotationally molded oil tank, and arranges supporting ribs and protective plates on the front, back and sides of the oil tank through the inlay grooves, limits the deformation of the oil tank through the metal structure, and improves the strength of the oil tank at the same time; compared with a steel metal oil tank, this structure can use a lighter aluminum alloy material, which greatly reduces the dead weight of the oil tank while ensuring strength and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a structural diagram of the fuel tank body;

[0019] Figure 2 This is the fuel tank baffle. Figure 1 ;

[0020] Figure 3 This is the fuel tank baffle. Figure 2 ;

[0021] Figure 4 It is a structural diagram of vertical support bars;

[0022] Figure 5 is a schematic diagram of the structure of a plug connector;

[0023] In the figure: 1. fuel tank body; 2. vertical support groove; 3. front horizontal support groove; 4. positioning groove; 5. connecting column; 6. oil supply connecting piece; 7. plug-in protrusion; 8. top baffle; 9. front baffle; 10. connecting piece plug-in hole; 11. front connecting ear; 12. vertical support rib; 13. plug-in connector. DETAILED DESCRIPTION

[0024] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0025] A roto-molded frame fuel tank;

[0026] like Figure 1 , which mainly includes a rotationally molded fuel tank body, the top side wall of the fuel tank body and the side walls on both sides of the lateral direction are provided with mutually connected vertical support grooves, the front side wall of the fuel tank body and the side walls on both sides of the lateral direction are provided with mutually connected front transverse support grooves, the rear side wall of the fuel tank body and the side walls on both sides of the lateral direction are provided with mutually connected rear transverse support grooves, the front transverse support grooves, the rear transverse support grooves and the vertical support grooves are connected with each other, and the vertical support grooves, the front transverse support grooves and the rear transverse support grooves all have two groups;

[0027] like Figure 1 A round tube oil supply connector is integrally molded on the top of the fuel tank body, and a plurality of positioning grooves are arranged in an array inside the fuel tank body. A connecting column for fixing the rear part of the fuel tank body is also arranged on one side of the positioning groove, and a screw sleeve is integrally embedded in the connecting column;

[0028] like Figure 1 , a plug-in protrusion is provided at the bottom of the fuel tank body;

[0029] An external support structure of the fuel tank is arranged outside the fuel tank body, and the external support structure includes a support bottom plate, a support frame, a fuel tank baffle and a fuel tank back plate;

[0030] The support bottom plate is arranged on the bottom side wall of the fuel tank body, and a plug-in groove with a rectangular cross section is arranged in the middle of the support bottom plate, and the plug-in protrusion is inserted into the plug-in hole to fix the bottom of the fuel tank body;

[0031] like Figure 4 , a support frame, the support frame includes vertical support ribs, wherein a vertical plug opening is provided at the bottom of the vertical support ribs, the vertical support ribs are embedded in the vertical support grooves through the vertical plug openings, and both ends of the plug openings are fixed to the support bottom plate;

[0032] like Figure 2 and Figure 3The fuel tank baffle includes a top baffle for covering the top wall of the fuel tank and a front baffle for covering the front wall of the fuel tank. The top baffle and the front baffle are an integral bending structure. The front baffle is fixed to the vertical support through a front connecting ear, and the top baffle is fixed to the vertical support rib through a top connecting ear.

[0033] The fuel tank back plate is provided with an array of inlay protrusions for embedding into the rear transverse support grooves and positioning protrusions embedded into the positioning grooves, and rear connecting ears are provided on both transverse sides of the fuel tank back plate, and the rear connecting ears are fixed to the vertical supporting ribs by bolts; at least two groups of connecting columns are arranged in an array on the back of the fuel tank body, and screw sleeves are integrally embedded in the connecting columns, and fixing holes matching the connecting columns are provided on the fuel tank back plate, and the fuel tank body is fixed relative to the fuel tank back plate by bolts fixed in the screw sleeves;

[0034] like Figure 5 A connector plug hole is provided on the top baffle, a plug connector with a metal tube structure is fixed at the plug hole, and the oil supply connector is sleeved and fixed in the plug connector;

[0035] When assembling, install the aforementioned combination relationship, fix the fuel tank baffle, supporting bottom plate, fuel tank back plate, vertical supporting ribs, front connecting ears, rear connecting ears and top connecting ears to each other, and then a group of fuel tank baffles and vertical supporting rib structures that can support and protect the longitudinal extrusion of the fuel tank can be formed in the vertical direction, while the side extrusion of the fuel tank is supported by the front baffle and the connecting ears. The whole structure forms a cage structure on the outside of the rotomolded fuel tank, which can form a cover for the rotomolded fuel tank to prevent deformation of the fuel tank caused by evaporation and expansion of the oil in the tank.

[0036] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A roto-molded frame fuel tank; characterized in that: include: The fuel tank body, the top side wall of the fuel tank body and the side walls on both sides of the transverse direction are provided with mutually connected vertical support grooves, the front side wall of the fuel tank body and the side walls on both sides of the transverse direction are provided with mutually connected front transverse support grooves, the rear side wall of the fuel tank body and the side walls on both sides of the transverse direction are provided with mutually connected rear transverse support grooves, the front transverse support groove, the rear transverse support groove and the vertical support groove are mutually connected, and there are at least two groups of transverse support grooves and vertical support grooves; A supporting bottom plate, which is arranged on the bottom side wall of the oil tank body; A support frame, the support frame includes vertical support ribs, wherein a vertical plug opening is provided at the bottom of the vertical support ribs, the vertical support ribs are embedded in the vertical support grooves through the vertical plug openings, and both ends of the plug openings are fixed to the support bottom plate; The fuel tank baffle includes a top baffle for covering the top wall of the fuel tank and a front baffle for covering the front wall of the fuel tank, the front baffle is fixed to the vertical support through a front connecting ear, the top baffle is fixed to the vertical support rib through a top connecting ear, and the ends of the front baffle and the top baffle are fixedly contacted with each other; The fuel tank back plate is provided with an array of inlay protrusions for embedding into the rear transverse support grooves, and rear connecting ears are provided on both lateral sides of the fuel tank back plate, and the rear connecting ears are fixed to the vertical support ribs by bolts.

2. A roto-molded frame fuel tank as claimed in claim 1, characterized in that: The bottom of the oil tank body is provided with an integrated plug-in protrusion; the supporting bottom plate is provided with a plug-in groove.

3. A roto-molded frame fuel tank as claimed in claim 1, characterized in that: The top baffle and the front baffle are an integrally bent structure.

4. A roto-molded frame fuel tank as claimed in claim 3, characterized in that: A connector plug hole is provided on the top baffle, a plug connector with a metal tube structure is fixed at the plug hole, and an oil supply connector is integrally arranged on the top of the oil tank body, and the oil supply connector is fixed in the plug connector.

5. A roto-molded frame fuel tank as claimed in claim 1, characterized in that: At least two groups of connecting columns are arranged in an array on the back of the fuel tank body, and screw sleeves are integrally embedded in the connecting columns. Fixing holes that cooperate with the connecting columns are provided on the back plate of the fuel tank. The fuel tank body is fixed relative to the back plate of the fuel tank by bolts fixed in the screw sleeves.

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