CN205532684U - Explosion -proof well lid structure - Google Patents
Explosion -proof well lid structure Download PDFInfo
- Publication number
- CN205532684U CN205532684U CN201620027820.4U CN201620027820U CN205532684U CN 205532684 U CN205532684 U CN 205532684U CN 201620027820 U CN201620027820 U CN 201620027820U CN 205532684 U CN205532684 U CN 205532684U
- Authority
- CN
- China
- Prior art keywords
- well lid
- wire rope
- steel wire
- manhole cover
- ventilating shaft
- 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 an explosion -proof well lid structure has set up the wire rope screen panel on the toper well lid, when taking place the well shooting, the toper well lid is by blast shock wave jack -up, is equipped with the guide effect of the support of pulley, the perpendicular upward movement of well lid through counter weight hammer and top. When moving an allocation, the take -up that the wire rope screen panel played a role acts on, 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, proposes a kind of Antiexplosive manhole cover structure, it is possible to reset rapidly.
Technical scheme: a kind of Antiexplosive manhole cover structure, uniformly divides on the termination borehole wall circumference of ventilating shaft distance ground 1-1.5 rice
The support of three 1-1.5 rice of cloth, every cradle top is provided with pulley, and ventilating shaft end is provided with taper well lid, tapered well caping
Portion the most uniformly connects three wireropes, and every wirerope correspondence connects counter weight, institute after the pulley of a cradle top
Stating tapered well tops and be provided with steel wire rope guard, described steel wire rope guard is fixed on the top of described three supports, described steel
The area of cord guard is 1.2-1.5 times of ventilating shaft open 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: a kind of Antiexplosive manhole cover structure of the present utility model is provided with steel wire rope guard on tapered well lid, when sending out
During raw well shooting, taper well lid by explosion wave jack-up, is provided with the leading of support of pulley by counter weight and top
To effect, well lid upward vertical movement.When moving 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 Antiexplosive manhole cover structural representation 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, a kind of Antiexplosive manhole cover structure, on the termination borehole wall 1 circumference of ventilating shaft distance ground 1-1.5 rice all
The support 2 of even three 1-1.5 rice of distribution, every cradle top is provided with pulley 3.Ventilating shaft end is provided with taper well lid 4, cone
Shape well lid 4 top the most uniformly connects three wireropes 5, the every corresponding pulley 3 through a cradle top of wirerope 5
Rear connection counter weight 6.Taper well lid 4 top is provided with steel wire rope guard 7, and steel wire rope guard 7 is fixed on three supports 2
Top, the area of steel wire rope guard 7 is 1.2-1.5 times of ventilating shaft open area.Wherein, the steel wire of steel wire rope guard 7
Rope is the closely knit steel wire rope of parallel twisting, and its outer wrap solid polymer core, for polyethylene or polypropylene.At taper well lid 4
Surrounding is provided with the lockweight 8 connecting the borehole wall.
The support of three 1-1.5 rice it is uniformly distributed, if stent length is too short, in the effect of blast impulse on the borehole wall 1 circumference
Under be easy to occur rigidity bending, if stent length is long, Antiexplosive manhole cover blast produce rotation wave effect under along
The deviation upright position, the direction of propagation of shock wave is also moved to side, and so may result in Antiexplosive manhole cover can not be timely automated extensive
Home position, causes serious consequence.
Antiexplosive manhole cover by wirerope, pulley connect counter weight, when occur explosion time, shock wave on tapered well lid,
Can easier open taper well lid by reusing of counter weight, allow explosion wave be released, be uniformly arranged simultaneously
Counter weight also be able to well to limit taper well lid overall direction of displacement time vertical.
When there is well shooting, taper well lid, by explosion wave jack-up, is provided with pulley by counter weight and top
The guide effect of support, well lid upward vertical movement.When moving to certain position, what steel wire rope guard played a role draws
Tight effect, prevents taper well lid from departing from and quickly can return to original position.The steel wire rope of steel wire rope guard is parallel twisting
Closely knit steel wire rope, 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, will not cause support itself
Big load.The solid polymer core of outer layer then plays protection and reuses, and prevents various corrosion or corrosion from occurring.
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. an Antiexplosive manhole cover structure, it is characterised in that: on the termination borehole wall circumference of ventilating shaft distance ground 1-1.5 rice all
The support of even three 1-1.5 rice of distribution, every cradle top is provided with pulley, and ventilating shaft end is provided with taper well lid, tapered well
Tops the most uniformly connects three wireropes, and every wirerope correspondence connects counterweight after the pulley of a cradle top
Hammer, described tapered well tops is provided with steel wire rope guard, and described steel wire rope guard is fixed on the top of described three supports,
1.2-1.5 times that area is ventilating shaft open area of described steel wire rope guard.
A kind of Antiexplosive manhole cover structure the most according to claim 1, it is characterised in that: the steel wire of described steel wire rope guard
Rope is the closely knit steel wire rope of parallel twisting, its outer wrap solid polymer core.
A kind of Antiexplosive manhole cover structure the most according to claim 1 and 2, it is characterised in that: at described taper well lid four
It is provided with the lockweight connecting the borehole wall week.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620027820.4U CN205532684U (en) | 2016-01-12 | 2016-01-12 | Explosion -proof well lid structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620027820.4U CN205532684U (en) | 2016-01-12 | 2016-01-12 | Explosion -proof well lid structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205532684U true CN205532684U (en) | 2016-08-31 |
Family
ID=56764504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620027820.4U Expired - Fee Related CN205532684U (en) | 2016-01-12 | 2016-01-12 | Explosion -proof well lid structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205532684U (en) |
-
2016
- 2016-01-12 CN CN201620027820.4U patent/CN205532684U/en not_active Expired - Fee Related
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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: 20160831 Termination date: 20170112 |