JPH0671435U - Liquid tank rocking prevention plate mounting structure - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention aims to effectively suppress the fluctuation of liquid regardless of the liquid volume in the liquid tank. [Structure] Pillars 9, 10, 11 vertically installed in the liquid tank 1
The rocking prevention plates 12 and 13 are slidably attached to the upper and lower sides, and the rocking prevention plates 12 and 13 are suspended in the liquid F filled in the tank 1 to follow the fluctuation of the volume of the liquid F.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mounting structure for a rocking preventive plate of a liquid tank such as a fuel tank of an automobile.

[0002]

[Prior art]

 A conventional example is shown in FIGS. In the figure, (1) is an automobile fuel tank, the tank body (2) is connected to the lubrication port (3), the communication port (4) branched from the lubrication port (3), and the liquid level gauge inside. (5) is inserted. A rocking preventive plate (6,7,8) made of metal is attached to the inside of the tank body (2) by welding or the like, and each rocking preventive plate (6,7,8) is a vertical plate (6A). , 7A, 8A) and horizontal plates (6B, 7B, 8B). In the rocking prevention plates (6, 7, 8), the vertical plates (6A, 7A, 8A) suppress the lateral rocking of the liquid in the tank body (2), and the horizontal plates (6B, 7B, 8B) suppresses the ripple of the liquid surface and the impact of the liquid on the upper part of the tank body (2).

[0003]

[Problems to be solved by the device]

 In the above conventional configuration, when the liquid volume in the tank (1) fluctuates, the horizontal plates (6B, 7B, 8B) of the rocking prevention plates (6, 7, 8) are no longer located near the liquid level. It will be separated from the liquid surface or sunk in the liquid. In such a state, the rocking preventive effect of the rocking preventive plate (6, 7, 8) is reduced or completely eliminated. In order to prevent this, the horizontal plates (6B, 7B, 8B) of the rocking prevention plates (6, 7, 8) must be mounted in multiple stages, which complicates the structure and increases the cost.

Further, the rocking preventive plates (6, 7, 8) are directly attached to the tank body (2) by welding, and a large number of welded portions are required to secure the attachment strength. May result in defects such as liquid leakage, and deformation due to pressurization and depressurization of the tank body (2) is directly input to the rocking prevention plate (6, 7, 8) via the welded part. .

[0005]

[Means for Solving the Problems]

 As a means for solving the above conventional problems, the present invention vertically installs support columns (9,10,11) in a liquid tank (1), and the support columns (9,10,11) have buoyancy. (EN) A structure for mounting a rocking prevention plate on a liquid tank (1) in which a rocking prevention plate (12, 13) is slidably mounted.

[0006]

[Action]

 The rocking preventive plates (12, 13) vertically slide on the columns (9, 10, 11) and float on the liquid surface S of the liquid F in the liquid tank (1). Then, following the fluctuation of the liquid level S, the rocking prevention plates (12, 13) slide up and down on the columns (9, 10, 11). Further, in the present invention, the welded portion is only the mounting portion of the column (9,10,11), and the rocking preventive plate (12,13) is free from the tank body (2).

[0007]

【Example】

 The present invention will be described with reference to an embodiment shown in FIGS. 1 and 2. (1) is a fuel tank of an automobile, and a tank body (2) has a lubrication port (3) and a branch from the lubrication port (3). The communication port (4) is connected and the level gauge (5) is inserted inside. In the tank body (2), columns (9,10,11) are hung vertically from the top by welding.The columns (9,10,11) have vertical plates (12A, 13A) and horizontal plates (9). 12B, 13B) is attached to the rocking prevention plate (12, 13) so that it can slide up and down, and the rocking prevention plate (12, 13) is mounted above and below the column (9, 10, 11). Slide vertically between the stoppers (14,15,16,17,18,19) installed (solid line position to dotted line position). A cushioning material (14A, 15A, 16A, 17A, 17A, 17A, 17A, 17A, 17A, 18A, 19A) are installed. The rocking preventive plates (12, 13) are made of a material having a smaller specific gravity than the liquid fuel F filled in the tank (1), such as plastic, so as to float on the liquid surface S of the liquid fuel F. It is set.

In the above structure, the tank (1) is filled with the fuel F, and the rocking prevention plates (12, 13) slide up and down the support columns (9, 10, 11) by the buoyancy, and the horizontal plates (12B, 12B, 13B) is just positioned on the liquid level S of the fuel F. Even if the liquid level S fluctuates, the rocking preventive plates (12, 13) follow this and slide up and down, and the horizontal plates (12B, 13B) are always located at the liquid level S.

The fuel F oscillates in the tank (1) due to input of vibration, acceleration, braking, turning, etc. while the vehicle is running, but lateral swaying causes vertical movement of the rocking prevention plates (12, 13). It is suppressed by the plates (12A, 13A), and the ripple of the liquid surface S and the impact on the upper part of the tank (1) are suppressed by the horizontal plates (12B, 13B), but in the present invention, the horizontal plates (12B, 13B) are always Since it is located on the liquid surface S, a great rocking suppression effect can be obtained. Due to such rocking preventive plates (12, 13), the rippling sound and impact sound of the liquid surface generated in the tank (1) are irrespective of the capacity of the fuel F filled in the tank (1). , Surely prevented.

[0010]

[Effect of device]

 Therefore, in the present invention, the fluctuation of the liquid filled in the liquid tank is effectively prevented, and the welded portion is minimized because the welded portion is minimized and the liquid leakage is prevented. There is no danger, and since the rocking prevention plate is free from the tank, the deformation of the tank is not directly input to the rocking prevention plate.

[Brief description of drawings]

 1 and 2 show an embodiment of the present invention.

[FIG. 1] Side cutout explanatory diagram

FIG. 2 is a top notch explanatory diagram.

FIG. 3 is a side cutout explanatory diagram of a conventional example.

FIG. 4 is an explanatory view of a notch of a top surface of a conventional example.

[Explanation of symbols]

 1 Tank 2 Tank body 9,10,11 Strut 12,13 Anti-swing plate F Fuel

Claims (1)

[Scope of utility model registration request] 1. A swing prevention plate mounting structure for a liquid tank, characterized in that a column is vertically provided in a liquid tank, and a swing prevention plate having buoyancy is slidably attached to the column.