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Tunnel escape well lid and tunnel escape well

A technology for manhole covers and tunnels, applied in the field of tunnel escape wells, can solve problems such as manhole covers cannot be opened and cannot be opened on both sides.

Active Publication Date: 2020-12-11
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the technical problems existing in the prior art. The first purpose of the present invention is to provide a tunnel escape manhole cover to solve the problem that the existing manhole cover cannot be opened without power and cannot be opened on both sides. question

Method used

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  • Tunnel escape well lid and tunnel escape well
  • Tunnel escape well lid and tunnel escape well
  • Tunnel escape well lid and tunnel escape well

Examples

Experimental program
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Effect test

Embodiment 1

[0035] This embodiment provides a tunnel escape manhole cover, such as figure 1 with figure 2 As shown, in a preferred embodiment, it includes a well cover frame 10, an upper cover 20 that is rotatably connected to the well cover frame 10 at one end, and a driving device that drives the upper cover 20 to rotate relative to the well cover frame 10 to open or close the upper cover 20, For example, the right end of the upper cover 20 is rotatably connected with the well cover frame 10 through a rotating shaft. After the loam cake 20 is closed, the loam cake 20 is covered on the well cover frame 10, and the upper surface of the loam cake 20 is flat with the tunnel ground.

[0036] Such as figure 2 As shown, wherein, the driving device includes a manual jack 30, and the manual jack 30 includes an oil storage barrel 31 fixedly connected to the bottom of the upper cover 20, a pump body 32 installed at the lower end of the oil storage barrel 31, and the pump body 32 through a refu...

Embodiment 2

[0055] The structural principle of this embodiment is basically the same as that of the first embodiment, except that the tunnel escape manhole cover of this embodiment can be opened automatically when an emergency occurs. Specifically, a current sensor is provided on the power supply bus of the tunnel fan, and an oxygen concentration sensor is provided in the tunnel. The signal output terminals of the current sensor and the oxygen concentration sensor are both electrically connected to the corresponding input terminals of the controller, specifically including the first A comparator, the first input end of the first comparator is connected to the output end of the oxygen concentration sensor, the second input end of the first comparator is connected to the oxygen threshold memory, and the output end of the first comparator is connected to the oxygen signal input of the controller electrical connection. The slide bar 41 is a telescopic rod structure, such as an electric telesc...

Embodiment 3

[0060] This embodiment provides a tunnel escape shaft, including an inner shaft and the tunnel escape shaft cover in Embodiment 1 or Embodiment 2.

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Abstract

The invention provides a tunnel escape well lid and a tunnel escape well. The tunnel escape well lid comprises a well lid frame, an upper lid and a driving device, wherein one end of the upper lid isrotationally connected with the well lid frame, and the driving device drives the upper lid to rotate. The driving device comprises a manual jack, an operating handle of the manual jack is connected with a driving mechanism for driving the operating handle to swing, the driving mechanism comprises a sliding rod connected with the bottom of the upper lid in a sliding mode, a push rod capable of abutting against the operating handle is fixedly connected to the sliding rod, a first connecting rod and a second connecting rod are further rotationally connected to the sliding rod; the first connecting rod is rotationally connected with an upper lever rotationally connected with the upper lid, and the second connecting rod is rotationally connected with a lower lever rotationally connected with the upper lid; and the sliding rod is further connected with a spring bolt matched with a lock groove of the well lid frame in a far-away mode,and the spring bolt is in a locked state and an unlocked state by enabling the sliding rod to slide. The tunnel escape well lid provided by the invention has a self-locking function, can be opened on the upper side and the lower side of a well and can stillbe opened under the condition of no electric power, so that the reliability is improved.

Description

technical field [0001] The invention belongs to the field of tunnel escape wells, and in particular relates to a tunnel escape well cover and a tunnel escape well. Background technique [0002] Tunnel escape shafts are designed to allow personnel to escape in the event of an emergency in the tunnel, such as fire, landslide, flooding, explosion, etc. The escape shaft communicates with the outside world through an underground passage to facilitate personnel to escape from the tunnel. [0003] In urban construction, upper and lower pipelines and pavement manhole covers must have strong bearing pressure. Most of them are made of cast iron, and the overall weight is heavy. At present, motors or hydraulic control systems are generally used to drive large manhole covers. The supply of electricity may be affected, that is to say, in the case of no electricity, the escape manhole cover of this tunnel cannot be opened; Contents of the invention [0004] The present invention aims t...

Claims

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Application Information

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IPC IPC(8): E02D29/14E21F11/00
CPCE02D29/14E02D29/1418E02D29/1427E02D29/1481E21F11/00
Inventor 汤杨郭晓晓张海龙
Owner CHONGQING UNIV OF ARTS & SCI
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