JPS636690B2 - - Google Patents
Info
- Publication number
- JPS636690B2 JPS636690B2 JP58155717A JP15571783A JPS636690B2 JP S636690 B2 JPS636690 B2 JP S636690B2 JP 58155717 A JP58155717 A JP 58155717A JP 15571783 A JP15571783 A JP 15571783A JP S636690 B2 JPS636690 B2 JP S636690B2
- Authority
- JP
- Japan
- Prior art keywords
- receiving frame
- lid
- steeply inclined
- peripheral surface
- inclined joint
- 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.)
- Expired
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 50
- 229910052742 iron Inorganic materials 0.000 claims description 26
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 150000002505 iron Chemical class 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58155717A JPS6051230A (ja) | 1983-08-27 | 1983-08-27 | 結氷防止鉄蓋 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58155717A JPS6051230A (ja) | 1983-08-27 | 1983-08-27 | 結氷防止鉄蓋 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6051230A JPS6051230A (ja) | 1985-03-22 |
JPS636690B2 true JPS636690B2 (fr) | 1988-02-10 |
Family
ID=15611945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58155717A Granted JPS6051230A (ja) | 1983-08-27 | 1983-08-27 | 結氷防止鉄蓋 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6051230A (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6389738A (ja) * | 1986-09-30 | 1988-04-20 | 東北電力株式会社 | 地中空洞槽の凍結防止装置 |
JPH0643051U (ja) * | 1992-11-10 | 1994-06-07 | 株式会社クボタ | マンホール蓋およびピット構造 |
WO1999067469A1 (fr) * | 1998-06-05 | 1999-12-29 | Luneng, Liv | Dispositif de chauffage de couvercles du trou d'acces |
EP2194192A1 (fr) * | 2008-12-08 | 2010-06-09 | Günter Arndt | Couvercle de chambre souterraine |
CN103422513B (zh) * | 2012-05-16 | 2016-04-20 | 江苏心日源建筑节能科技股份有限公司 | 地源热泵检查装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4525950Y1 (fr) * | 1967-07-18 | 1970-10-09 |
-
1983
- 1983-08-27 JP JP58155717A patent/JPS6051230A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4525950Y1 (fr) * | 1967-07-18 | 1970-10-09 |
Also Published As
Publication number | Publication date |
---|---|
JPS6051230A (ja) | 1985-03-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6206030B1 (en) | Insulating cover for water backflow prevention apparatus | |
US5996611A (en) | Enhanced features for backflow prevention device cover | |
JPS636690B2 (fr) | ||
US6532985B1 (en) | Further enhanced features for backflow prevention device enclosure | |
US4562857A (en) | Thermal insulation article | |
CN215410279U (zh) | 一种避免冻裂的闸阀 | |
JP3653350B2 (ja) | 給湯装置 | |
FR2606052A1 (fr) | Dispositif pour supporter et proteger un compteur d'eau a l'egard du gel et son procede d'installation | |
KR200308582Y1 (ko) | 아파트 수도계량기의 동파방지장치 | |
KR200322427Y1 (ko) | 아파트 수도계량기의 동파방지장치 | |
KR200237753Y1 (ko) | 아파트 수도계량기의 동파방지장치 | |
CN216790643U (zh) | 一种冷库门底部防冻安装结构 | |
JPS5914546Y2 (ja) | 通水管凍結防止装置における連結管 | |
KR100513311B1 (ko) | 수도계량기 보호통 | |
JPH0262688U (fr) | ||
JPS60172792A (ja) | 凍結防止型弁 | |
JPS6151226B2 (fr) | ||
JPH0230679Y2 (fr) | ||
KR900010338Y1 (ko) | 온장고가 부설된 전기온수기 | |
JPS5912295Y2 (ja) | 水道管の結氷解凍器 | |
JPS5840140Y2 (ja) | 量水器の凍結防止装置 | |
JP2000160607A (ja) | 樹脂パイプを用いた配管の凍結防止方法 | |
JP2001074309A (ja) | ガス給湯装置 | |
JPH04135Y2 (fr) | ||
JPS6124826Y2 (fr) |