JPH0359574U

JPH0359574U -

Info

Publication number: JPH0359574U
Application number: JP12071289U
Authority: JP
Priority date: 1989-10-16
Filing date: 1989-10-16
Publication date: 1991-06-12

Description

[Brief explanation of drawings]

第１図及び第２図は本考案のローリの吐出口用
遮断装置を示すもので、第１図は常温における吐
出口用遮断装置を示す概略図、第２図は高温にお
ける弁自動遮断部が作動した吐出口用遮断装置を
示す概略図、第３図ないし第８図は従来のローリ
の吐出口用遮断装置を示すもので、第３図はタン
ク下部を示す要部概略図、第４図は第３図のＢ部
を示す平面図、第５図は第３図の−線矢視の
一部省略断面図、第６図は常温における吐出口用
遮断装置を示す概略図、第７図は常温における吐
出口用遮断装置において手動レバーにより遮断弁
を閉状態したことを示す概略図、第８図は高温に
おける弁自動遮断部が作動した吐出口用遮断装置
を示す概略図である。１……タンク、２……吐出口、３……遮断弁、
３ａ……遮断弁の作動軸、４……排出管、５ａ，
５ｂ……レバー、６……手動レバー、２０……バ
ネ部材（形状記憶合金からなる弁自動遮断部）。 Figures 1 and 2 show the shutoff device for the discharge port of a lorry according to the present invention. Figure 1 is a schematic diagram showing the shutoff device for the discharge port at room temperature, and Figure 2 is a schematic diagram showing the valve automatic shutoff unit at high temperature. A schematic diagram showing a discharge port shutoff device in operation; FIGS. 3 to 8 show a conventional lorry discharge port shutoff device; FIG. 3 is a schematic diagram of the main parts showing the lower part of the tank; FIG. 4 is a plan view showing part B in FIG. 3, FIG. 5 is a partially omitted cross-sectional view taken in the direction of the - arrow in FIG. FIG. 8 is a schematic diagram showing the shutoff valve for a discharge port in a closed state by a manual lever in the discharge port shutoff device at normal temperature, and FIG. 1...Tank, 2...Discharge port, 3...Shutoff valve,
3a... Operating shaft of the shutoff valve, 4... Discharge pipe, 5a,
5b...Lever, 6...Manual lever, 20...Spring member (valve automatic shutoff section made of shape memory alloy).

Claims

[Scope of utility model registration request]

A cutoff valve is disposed at the discharge port at the bottom of the tank of the lorry in which liquid fuel is stored, the cutoff valve is provided with a manual valve opening/closing part, and the manual valve opening/closing part has a shape memory whose shape changes with temperature changes. A shutoff for a discharge port of a lorry, characterized in that an automatic valve shutoff section using an alloy is attached, and the closing operation of the manual valve opening/closing section is automatically activated due to a shape change of the automatic valve shutoff section at high temperatures. Device.