Escape manhole in tunnel
A technology for tunnels and manhole covers, applied in water conservancy projects, artificial islands, underwater structures, etc., can solve the problems of personal and property loss, high cost, inability to open, etc., and achieve anti-jump and anti-seepage capabilities, simple structure, Use flexible effects
Inactive Publication Date: 2014-01-01
SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE
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Problems solved by technology
[0002] In urban construction, upper and lower pipelines and pavement manhole covers must have strong bearing pressure. Most of them are made of cast iron, such as hinged manhole covers, anti-theft manhole covers, etc. At present, there are no molded products in China for manual power-assisted manhole covers, and foreign products use Manhole covers and bottom frames made of stainless steel are expensive and there are no large-size products. Among the various types of pipeline and road surface manhole covers, manhole covers that can be opened with assistance are rare. Generally, large-scale manhole covers are driven by electrical appliances or hydraulic pressure, but the system is complicated. High maintenance and debugging requirements, high cost, difficult to popularize and use
Therefore, when evacuating through safety passages and safety exits in emergency situations such as fire, it is easy to find that the manhole cover is not easy to open, or cannot be opened, or is not easy to seal, which will cause damage to personal property.
Method used
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[0014] The features of the present invention and other related features will be further described in detail below in conjunction with the accompanying drawings through embodiments, so as to facilitate the understanding of those skilled in the same industry:
[0015] like Figure 1-3 As shown, the total reference numerals 1-6 in the accompanying drawings represent respectively: loam cake 1, bottom frame 2, booster air pump 3, lockset 4, handle 5, dead bolt 6.
[0016] The manhole cover of this embodiment includes a loam cake 1, a bottom frame 2 and a power booster air pump 3, wherein the bottom frame 2 is connected with a loam cake 1 through a hinge, and two power booster air pumps are connected at symmetrical positions between the loam cake 1 and the bottom frame 2 3. Install one end of the booster air pump 3 on the reserved hinge seat under the upper cover 1, and install the other end on the reserved hinge seat of the bottom frame 2 to form a gas spring effect between the bot...
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The invention relates to assembly of well covers, in particular to an escape well cover in a tunnel. The well cover comprises an upper cover, a bottom frame and a power-assisted air pump, wherein one end of the power-assisted air pump is connected with the upper cover and the other end of the power-assisted air pump is connected with the bottom frame; and a lockset capable of locking the well cover is arranged on the upper cover. The escape well cover in the tunnel has the advantages that the escape well cover has a simple structure and strong bearing property due to increase of the stability of the well cover, uses small force, is flexible and convenient to use, has the abilities of self-locking, creepage resistance and seepage resistance, and not only can be used on an escape scuttle in the tunnel but also can be used on an access hole.
Description
technical field [0001] The invention relates to the installation of manhole covers, in particular to an escape manhole cover in a tunnel. Background technique [0002] In urban construction, upper and lower pipelines and pavement manhole covers must have strong bearing pressure. Most of them are made of cast iron, such as hinged manhole covers, anti-theft manhole covers, etc. At present, there are no molded products in China for manual power-assisted manhole covers, and foreign products use Manhole covers and bottom frames made of stainless steel are expensive and there are no large-size products. Among the various types of pipeline and road surface manhole covers, manhole covers that can be opened with assistance are rare. Generally, large-scale manhole covers are driven by electrical appliances or hydraulic pressure, but the system is complicated. The maintenance and debugging requirements are high, the cost is high, and it is not easy to promote and use. Therefore, when ...
Claims
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IPC IPC(8): E02D29/14
Inventor 曹文宏杨志豪胡章喜宋振华沈冲陈华
Owner SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE