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A tunnel escape manhole cover and a 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: 2021-09-17
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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  • A tunnel escape manhole cover and a tunnel escape well
  • A tunnel escape manhole cover and a tunnel escape well
  • A tunnel escape manhole cover and a tunnel escape well

Examples

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Embodiment 1

[0035] This embodiment provides a tunnel escape manhole cover, such as figure 1 and 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 refue...

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 manhole cover and a tunnel escape well. The tunnel escape manhole cover includes a manhole cover frame, an upper cover rotatably connected to the manhole cover frame at one end, and a driving device for driving the upper cover to rotate; the driving device includes a manual jack, a manual The operating handle of the jack is connected with a driving mechanism that drives its swing. The driving mechanism includes a sliding rod that is slidably connected to the bottom of the upper cover. The sliding rod is fixedly connected with a push rod that can interfere with the operating handle. A connecting rod and a second connecting rod, the first connecting rod is rotatably connected with an upper lever rotatably connected with the upper cover, and the second connecting rod is rotatably connected with a lower lever rotatably connected with the upper cover; the sliding rod is also connected with the manhole cover frame away from the upper The lock tongue is matched with the lock groove, and the sliding rod makes the lock tongue in the locked state and the unlocked state. The tunnel escape manhole cover of the present invention has a self-locking function, and can realize opening on both sides of the uphole and downhole, and can still be opened in the case of no power, thereby increasing reliability.

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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Patent Type & Authority Patents(China)
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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