JPH01150660U - - Google Patents

Info

Publication number
JPH01150660U
JPH01150660U JP4846188U JP4846188U JPH01150660U JP H01150660 U JPH01150660 U JP H01150660U JP 4846188 U JP4846188 U JP 4846188U JP 4846188 U JP4846188 U JP 4846188U JP H01150660 U JPH01150660 U JP H01150660U
Authority
JP
Japan
Prior art keywords
memory alloy
shape memory
antifreeze device
freezing
drain valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4846188U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP4846188U priority Critical patent/JPH01150660U/ja
Publication of JPH01150660U publication Critical patent/JPH01150660U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Temperature-Responsive Valves (AREA)
  • Safety Valves (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、この考案の凍結防止装置を止水栓に
用いた実施例を示す断面図。第２図は、第１図中
の円で囲んだ部分の拡大図。第３図は、この考案
の凍結防止装置連結管に用いた実施例を示す断面
図。 １７…水抜弁、２２…形状記憶合金。 FIG. 1 is a sectional view showing an embodiment in which the antifreeze device of this invention is used in a water stop valve. Figure 2 is an enlarged view of the circled area in Figure 1. FIG. 3 is a sectional view showing an embodiment of this invention used in a connecting pipe for an antifreeze device. 17... Drain valve, 22... Shape memory alloy.

Claims (1)

【実用新案登録請求の範囲】 １ 水抜弁１７を操作するために、気温が氷点下
になると収縮し、気温が氷点以上になると伸長し
て元の長さに戻る性質を有する形状記憶合金２２
を用いたことを特徴とする凍結防止装置。 ２ 形状記憶合金２２が、コイル状に形成された
ものであることを特徴とする請求項１記載の凍結
防止装置。[Claims for Utility Model Registration] 1. In order to operate the drain valve 17, a shape memory alloy 22 which has the property of contracting when the temperature falls below freezing, and expanding and returning to its original length when the temperature rises above freezing.
An antifreeze device characterized by using. 2. The antifreeze device according to claim 1, wherein the shape memory alloy 22 is formed into a coil shape.
JP4846188U 1988-04-11 1988-04-11 Pending JPH01150660U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4846188U JPH01150660U (en) 1988-04-11 1988-04-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4846188U JPH01150660U (en) 1988-04-11 1988-04-11

Publications (1)

Publication Number Publication Date
JPH01150660U true JPH01150660U (en) 1989-10-18

Family

ID=31274609

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4846188U Pending JPH01150660U (en) 1988-04-11 1988-04-11

Country Status (1)

Country Link
JP (1) JPH01150660U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021042799A (en) * 2019-09-10 2021-03-18 Ｓａｎｅｉ株式会社 Freeze prevention device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5616679B2 (en) * 1976-11-19 1981-04-17
JPS60146975A (en) * 1983-12-31 1985-08-02 Kato Hatsujo Kaisha Ltd Anti-freeze valve

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5616679B2 (en) * 1976-11-19 1981-04-17
JPS60146975A (en) * 1983-12-31 1985-08-02 Kato Hatsujo Kaisha Ltd Anti-freeze valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021042799A (en) * 2019-09-10 2021-03-18 Ｓａｎｅｉ株式会社 Freeze prevention device

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