CN205477708U - Take explosion -proof well lid structure of pulley - Google Patents
Take explosion -proof well lid structure of pulley Download PDFInfo
- Publication number
- CN205477708U CN205477708U CN201620025678.XU CN201620025678U CN205477708U CN 205477708 U CN205477708 U CN 205477708U CN 201620025678 U CN201620025678 U CN 201620025678U CN 205477708 U CN205477708 U CN 205477708U
- Authority
- CN
- China
- Prior art keywords
- well lid
- wire rope
- steel wire
- pulley
- track
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model discloses a take explosion -proof well lid structure of pulley, the track of a plurality of 1 -1.5 rice of evenly distributed on the wall of a well circumference of ventilating shaft end, toper well lid edge connection have a plurality of pulleys, and the pulley position is mated and can be moved at the track inside slip with track position. When taking place the well shooting, the toper well lid is by blast shock wave jack -up, and the cooperation through track and pulley has restricted the toper well lid and can only take place the removal in the vertical direction, therefore the well lid can resume initial position fast. Assault when huge when the explosion, when the toper well lid moves an allocation, taut effect that the wire rope screen panel played a role prevents that the toper well lid breaks away from and can recovering very fast arrive the original position.
Description
Technical field
This utility model relates to a kind of Antiexplosive manhole cover structure, belongs to Mine Safety Appliances field.
Background technology
Main air blower must be offset to another air outlet by the formula wind cave that detours by China's " safety regulations in coal mine " regulation, logical
Explosion proof door, lid is installed on ventilating shaft axis.Its object is to can be first by anti-when having blast or impact air-flow to go out from down-hole
Quick-fried door, lid start, and reduce main air blower impact by pressure release effect, thus play the effect of protection main air blower, really
Guarantor's main air blower runs well.Since explosion proof door, lid are designed and install and use so far, aobvious in terms of protection ventilating shaft main air blower
Also having exposed out other some problems while revealing its great function, blast wave is along lane during propagating
Road central axial shape rotation body is distally propagated, and mainly shows as thrust and part revolving force when running into barrier.Explosion-proof
Door, cover after by this active force and along the direction of propagation of shock wave deviation original position and can move to side, therefore prevent
Quick-fried door, lid can not quick-make the most again.Even if now main air blower the most normally works, but due to well head ventilating shaft
Mounting design structure, the pressure reduction that distinguished and admirable and ambient atmosphere pressure reduction produced by blower fan is always distinguished and admirable more than between the ventilating shaft of down-hole,
Distinguished and admirable directly will press to air by top air duct or suck from air, and cause that down-hole is distinguished and admirable to be shorted, main air blower is covert
Idle running, underworkings also can lose ventilation function.This brings barrier just to normal ventilation that continue of the down-hole that explosion accident occurs
Hinder, deteriorate the existence of down-hole survival personnel, environment of saving oneself, increase the weight of damage sequence.
Summary of the invention
Goal of the invention: for above-mentioned prior art, propose the Antiexplosive manhole cover structure of a kind of band pulley, it is possible to reset rapidly.
Technical scheme: the Antiexplosive manhole cover structure of a kind of band pulley, at the termination borehole wall circumference of ventilating shaft distance ground 1-1.5 rice
On be uniformly distributed the track of some 1-1.5 rice, ventilating shaft end is provided with taper well lid, and described taper well lid edge connects to be had
Some pulleys, pulley position is mated with described orbital position and can slide in orbit；Described tapered well tops is provided with
Steel wire rope guard, described steel wire rope guard is fixed on the top of described track, and the area of described steel wire rope guard is ventilating shaft mouth
1.2-1.5 times of area.
Further, the steel wire rope of described steel wire rope guard is the closely knit steel wire rope of parallel twisting, its outer wrap solid polymer
Core.
Further, the lockweight of the connection borehole wall it is provided with in described taper well lid surrounding.
Beneficial effect: the Antiexplosive manhole cover structure of a kind of band pulley of the present utility model, ventilating shaft termination borehole wall circumference uniformly divides
The track of some 1-1.5 rice of cloth, taper well lid edge connects some pulleys, and pulley position is mated also with orbital position
Can slide in orbit.When there is well shooting, taper well lid is by explosion wave jack-up, by track and pulley
Cooperation limit taper well lid and can only be moved in vertical direction, therefore well lid can quickly recover to home position.
When blast impulse is huge, when taper well lid moves to certain position, the tensioning function that steel wire rope guard plays a role,
Prevent taper well lid from departing from and quickly can return to original position.
Accompanying drawing explanation
Fig. 1 is the Antiexplosive manhole cover structural representation of band pulley of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is done and further explain.
As it is shown in figure 1, the Antiexplosive manhole cover structure of a kind of band pulley, at the termination borehole wall 1 of ventilating shaft distance ground 1-1.5 rice
Being uniformly distributed the track 2 of some 1-1.5 rice on circumference, ventilating shaft end is provided with taper well lid 3, and taper well lid 3 edge is even
Being connected to some pulleys 4, pulley 4 position and track 1 location matches also can be slided in orbit.Tapered well tops sets
Having steel wire rope guard 5, steel wire rope guard 5 to be fixed on the top of track, the area of steel wire rope guard 5 is ventilating shaft open area
1.2-1.5 times.Wherein, the steel wire rope of steel wire rope guard 7 is the closely knit steel wire rope of parallel twisting, and its outer wrap solid-state is gathered
Compound core, for polyethylene or polypropylene.The lockweight 8 connecting the borehole wall it is provided with in taper well lid 4 surrounding.Wherein, rail
The quantity in road 2 can set according to practical situation, the generally higher than six roots of sensation.
When there is well shooting, taper well lid, by explosion wave jack-up, limits cone by the cooperation of track and pulley
Shape well lid can only be moved in vertical direction, and therefore well lid can quickly recover to home position.When blast impulse is huge
Time, when taper well lid moves to certain position, the tensioning function that steel wire rope guard plays a role, prevent taper well lid from taking off
From and quickly can return to original position.
The steel wire rope of steel wire rope guard is the closely knit steel wire rope of parallel twisting, its outer wrap solid polymer core, for polyethylene or
Polypropylene.Experiment proves that this kind of steel wire rope has superpower tensile property, therefore, it is possible to the shock wave that opposing is bigger, and its
Direct current is relatively light, support itself will not be caused excessive load.The solid polymer core of outer layer then plays protection and reuses, anti-
Only various corrosion or corrosion occur.
The lockweight connecting the borehole wall it is provided with, it is possible to when preventing down hole reverse air feed, taper well lid is pushed away in taper well lid surrounding
Open and the situation of Air escape branch occurs.
The above is only preferred implementation of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improve
Also protection domain of the present utility model is should be regarded as with retouching.
Claims (3)
1. the Antiexplosive manhole cover structure of a band pulley, it is characterised in that: at the termination borehole wall of ventilating shaft distance ground 1-1.5 rice
Being uniformly distributed the track of some 1-1.5 rice on circumference, ventilating shaft end is provided with taper well lid, and described taper well lid edge is even
Being connected to some pulleys, pulley position is mated with described orbital position and can slide in orbit；Described tapered well tops
Being provided with steel wire rope guard, described steel wire rope guard is fixed on the top of described track, and the area of described steel wire rope guard is wind
1.2-1.5 times of well head area.
The Antiexplosive manhole cover structure of band pulley the most according to claim 1, it is characterised in that: described steel wire rope guard
Steel wire rope is the closely knit steel wire rope of parallel twisting, its outer wrap solid polymer core.
The Antiexplosive manhole cover structure of band pulley the most according to claim 1 and 2, it is characterised in that: in described tapered well
Lid surrounding is provided with the lockweight connecting the borehole wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620025678.XU CN205477708U (en) | 2016-01-12 | 2016-01-12 | Take explosion -proof well lid structure of pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620025678.XU CN205477708U (en) | 2016-01-12 | 2016-01-12 | Take explosion -proof well lid structure of pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205477708U true CN205477708U (en) | 2016-08-17 |
Family
ID=56665928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620025678.XU Expired - Fee Related CN205477708U (en) | 2016-01-12 | 2016-01-12 | Take explosion -proof well lid structure of pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205477708U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810217A (en) * | 2020-07-22 | 2020-10-23 | 河南理工大学 | Auxiliary explosion-proof system for coal mine air shaft |
-
2016
- 2016-01-12 CN CN201620025678.XU patent/CN205477708U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810217A (en) * | 2020-07-22 | 2020-10-23 | 河南理工大学 | Auxiliary explosion-proof system for coal mine air shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20170112 |