CN202007689U - 卸荷式无压风门 - Google Patents

卸荷式无压风门 Download PDF

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Publication number
CN202007689U
CN202007689U CN2011201407407U CN201120140740U CN202007689U CN 202007689 U CN202007689 U CN 202007689U CN 2011201407407 U CN2011201407407 U CN 2011201407407U CN 201120140740 U CN201120140740 U CN 201120140740U CN 202007689 U CN202007689 U CN 202007689U
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China
Prior art keywords
air door
sliding window
window sash
unloading
spring
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Expired - Fee Related
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CN2011201407407U
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English (en)
Inventor
孙森
徐纪龙
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XUNYI HUHAO HEIGOU COAL INDUSTRY CO LTD
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XUNYI HUHAO HEIGOU COAL INDUSTRY CO LTD
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Priority to CN2011201407407U priority Critical patent/CN202007689U/zh
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Publication of CN202007689U publication Critical patent/CN202007689U/zh
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Abstract

本实用新型公开了一种卸荷式无压风门，它是在现有风门本体上加工有窗口，窗口上安装有平推式推拉窗扇，推拉窗扇一侧设有推力弹簧，窗口框下方设有固定推拉窗扇的弹簧式插销，弹簧式插销上设有一拉绳。本实用新型使用时，将拉绳一端固定在合适位置。当开风门时，先打开推拉窗扇，由于推拉窗扇为平推式，所以不受风压影响很容易打开，卸荷后再打开风门，在无压情况下很容易将风门打开，当矿车通过风门口，关门风门，同时在拉绳的作用下拉开插销，推拉窗扇在推力弹簧作用下自动关闭。

Description

卸荷式无压风门
技术领域
本实用新型涉及煤矿井下风门。
背景技术
目前有些老矿井由于巷道断面小，矿井规模小，进风巷与回风巷之间压力大，加上风门本身重力大，很难开启风门。
发明内容
为解决现有风门难以开启的问题，本实用新型提供一种卸荷式无压风门。
本实用新型技术方案是：它包括风门本体，其特征在于，在风门本体上加工有窗口，窗口上安装有平推式推拉窗扇，推拉窗扇一侧设有推力弹簧，窗口框下方设有固定推拉窗扇的弹簧式插销，弹簧式插销上设有一拉绳。
本实用新型使用时，将拉绳一端固定在合适位置。当开风门时，先打开推拉窗扇，由于推拉窗扇为平推式，所以不受风压影响很容易打开，卸荷后再打开风门，在无压情况下很容易将风门打开，当矿车通过风门口，关门风门，同时在拉绳的作用下拉开插销，推拉窗扇在推力弹簧作用下自动关闭。
附图说明
图1是本实用新型实施例的示意图。
图例说明：1-风门本体；2-推拉窗扇；3-推力弹簧；4-弹簧式插销；5-拉绳。
具体实施方式
如图所示，本实用新型是在现有风门本体1上加工有窗口，窗口上安装有平推式推拉窗扇2，推拉窗扇2一侧设有推力弹簧3，窗口框下方设有固定推拉窗扇2的弹簧式插销4，弹簧式插销4上设有拉绳5。

Claims (1)

1.一种卸荷式无压风门，它包括风门本体，其特征在于，在风门本体上加工有窗口，窗口上安装有平推式推拉窗扇，推拉窗扇一侧设有推力弹簧，窗口框下方设有固定推拉窗扇的弹簧式插销，弹簧式插销上设有一拉绳。
CN2011201407407U 2011-04-25 2011-04-25 卸荷式无压风门 Expired - Fee Related CN202007689U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201407407U CN202007689U (zh) 2011-04-25 2011-04-25 卸荷式无压风门

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201407407U CN202007689U (zh) 2011-04-25 2011-04-25 卸荷式无压风门

Publications (1)

Publication Number Publication Date
CN202007689U true CN202007689U (zh) 2011-10-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201407407U Expired - Fee Related CN202007689U (zh) 2011-04-25 2011-04-25 卸荷式无压风门

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CN (1) CN202007689U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111577368A (zh) * 2020-04-14 2020-08-25 淮北矿业股份有限公司 一种气动连锁正反减压安全风门

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111577368A (zh) * 2020-04-14 2020-08-25 淮北矿业股份有限公司 一种气动连锁正反减压安全风门

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C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111012

Termination date: 20140425