The utility model relates to the technical field of soil layer or rock drilling and mining, in particular to an automatic reset hole sealer, which comprises a mounting base, the inner part of which is symmetrically provided with two slips, two cylinder barrels are arranged at both ends of the mounting base, the cylinder barrel is provided with a nitrogen spring, the inner side of the nitrogen spring is connected with a piston through a connecting rod, the inner end of the piston is connected with the outer side of the slips, and the inner end of the piston is connected with the outer side of the slips An oil chamber is formed between the inner side of the plug and the cylinder barrel, and the oil inlet joint and the oil outlet joint are communicated with the oil chamber through an oil chamber connecting pipe arranged on the cylinder barrel. The inner part of the cylinder barrel is fixedly provided with a sliding sleeve, the inner part of the sliding sleeve is provided with a transverse perforation, the sliding sleeve is connected with the oil inlet joint and the oil outlet joint through the sliding sleeve pipe, the inner part of the connecting rod and the piston is provided with an oil passage, the inner side of the slip is provided with a capsule, the inner side of the oil passage is connected with a rubber capsule, and the inner side of the capsule is provided with an elastic cushion. The utility model has the advantages of simple structure, good sealing effect, high safety performance and easy implementation and popularization.
【技术实现步骤摘要】
自动复位封孔器
本技术涉及土层或岩石的钻进、采矿
,具体是自动复位封孔器。
技术介绍
封孔器用于封堵施工瓦斯防突孔过程中突出的瓦斯气体,以避免瓦斯超限。现有封孔器由进油接头、油缸外筒、活塞、安装座、卡瓦及出油接头等组成。双油缸式封孔器工作时,封孔器与孔口固孔器的法兰盘连接,用于钻孔的钻杆从卡瓦之间穿过,当施工过程中有瓦斯突出时,操作外部高压油从进油接头进入油缸,从而压缩活塞带动卡瓦夹紧钻杆,进而达到封堵突出瓦斯的目的。被夹紧的钻杆在使用一段时间后会磨损变细,由于卡瓦是刚性材料,当钻杆变细后,封孔器在夹紧过程中会出现夹不住钻杆的问题,即卡瓦和钻杆之间存在间隙,这样就起不到封堵的作用。中国专利(公告号:CN107083936A,公告日:2017.08.22)公开了一种自动复位封孔器,包括活塞、进油接头、出油接头、安装座、设置在安装座内的卡瓦及对称设置在安装座两端的缸筒,缸筒内设有氮气弹簧,活塞穿过安装座且两端分别与卡瓦及氮气弹簧连接,进油接头与出油接头设置在缸筒上;该自动复位封孔器通过氮气弹簧提供的力实现了常闭功能,在没有外部动力源的情况下也能夹紧钻杆,实现了封堵突出瓦斯的目的。但是该封孔器密封效果有限,同样会产生泄漏,带来安全隐患。
技术实现思路
本技术的目的在于提供自动复位封孔器,以解决上述
技术介绍
中提出的问题。为实现上述目的,本技术提供如下技术方案:自动复位封孔器,包括安装座、进油接头、出油接头、缸筒和氮气弹簧。安装座的内部对称的设置有两个卡瓦,安装座的两端对称设置有两 ...
【技术保护点】
1.自动复位封孔器,包括安装座(5)、进油接头、出油接头、缸筒(8)和氮气弹簧(1),安装座(5)的内部对称的设置有两个卡瓦(6),安装座(5)的两端对称设置有两个缸筒(8),缸筒(8)内设有氮气弹簧(1),氮气弹簧(1)的内侧通过连接杆(11)连接在活塞(9)的外侧,活塞(9)穿过并进入安装座(5)内与卡瓦(6)的外侧连接,活塞(9)的内侧与缸筒(8)之间构成了油腔(7),进油接头与出油接头设置在缸筒(8)上,且进油接头及出油接头与油腔(7)通过开设在缸筒(8)上的油腔接管(3)连通,其特征在于,缸筒(8)的内部固定设置有滑动套(10),滑动套(10)的内部设置有横向的穿孔并嵌套在连接杆(11)上,滑动套(10)通过滑动套接管(2)连通进油接头与出油接头,连接杆(11)和活塞(9)的内部设置有油道(12),卡瓦(6)的内侧设置有胶囊(4),油道(12)的内侧连通胶囊(4),胶囊(4)的内侧设置有弹性垫层(17)。/n
【技术特征摘要】
1.自动复位封孔器,包括安装座(5)、进油接头、出油接头、缸筒(8)和氮气弹簧(1),安装座(5)的内部对称的设置有两个卡瓦(6),安装座(5)的两端对称设置有两个缸筒(8),缸筒(8)内设有氮气弹簧(1),氮气弹簧(1)的内侧通过连接杆(11)连接在活塞(9)的外侧,活塞(9)穿过并进入安装座(5)内与卡瓦(6)的外侧连接,活塞(9)的内侧与缸筒(8)之间构成了油腔(7),进油接头与出油接头设置在缸筒(8)上,且进油接头及出油接头与油腔(7)通过开设在缸筒(8)上的油腔接管(3)连通,其特征在于,缸筒(8)的内部固定设置有滑动套(10),滑动套(10)的内部设置有横向的穿孔并嵌套在连接杆(11)上,滑动套(10)通过滑动套接管(2)连通进油接头与出油接头,连接杆(11)和活塞(9)的内部设置有油道(12),卡瓦(6)...
【专利技术属性】
技术研发人员:袁国良,
申请(专利权)人:山东天行新材料科技有限公司,
类型:新型
国别省市:山东;37
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