CN208456654U - A kind of air duct anti-reverse-rotation device - Google Patents
A kind of air duct anti-reverse-rotation device Download PDFInfo
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- CN208456654U CN208456654U CN201821105383.9U CN201821105383U CN208456654U CN 208456654 U CN208456654 U CN 208456654U CN 201821105383 U CN201821105383 U CN 201821105383U CN 208456654 U CN208456654 U CN 208456654U
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- iron winds
- cover board
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Abstract
The utility model discloses a kind of air duct anti-reverse-rotation devices, including iron winds cylinder, it further include support rod, the two semicircular anti-reverse cover boards of fan, bar and shaft, support rod is vertically set in iron winds cylinder, anti-reverse cover board be separately positioned on support rod two sides and by shaft and support rod it is hinged, bar is arranged in anti-reverse cover board close to iron winds cylinder air inlet side, when underground coal mine is normally divulged information, anti-reverse cover board automatic opening under portable blower wind pressure in iron winds cylinder, the normal air feed of iron winds cylinder, when freeing gas accident, gas pressure outstanding is greater than booster and generates wind pressure, anti-reverse cover board is closed under the pressure effect of prominent gas, closing iron winds cylinder is to block the gas of adverse current, when gas explosion accident occurs for effective solution underground coal mine, high concentration gas by iron winds cylinder adverse current to it is fresh it is distinguished and admirable in, personnel are caused to suffocate Dead problem, ensures personal safety to greatest extent, prevents disaster diffusion from causing secondary disaster.
Description
Technical field
The utility model relates to technical field of mine safety more particularly to a kind of air duct anti-reverse-rotation devices.
Background technique
Coal and gas prominent is the safety accident being easy to appear during coal mine produces, the high concentration watt that coal and gas prominent can be gushed out
This is met fire source and causes the disasters generation such as gas combustion and explosion, and in this case, high concentration gas outstanding passes through iron winds cylinder
Adverse current to it is fresh it is distinguished and admirable in, the fresh distinguished and admirable middle personnel's personal safety of crisis causes personnel's death by suffocation, it is, therefore, desirable to provide one
Kind novel air duct anti-reverse-rotation device for underground coal mine can be with for coal mine outburst prevention work face booster air duct
It prevents underground coal and gas burst accident from leading to the generation of inverted air current, can be impacted decrease fast after gas explosion disaster occurs
Intensity of wave, prevent wind current control, protect protrusion-dispelling wind outside it is fresh it is distinguished and admirable in personnel safety, ensure personal safety to greatest extent,
Prevent disaster diffusion from causing secondary disaster.
Summary of the invention
The technical problem solved by the utility model is:to provide a kind of air duct anti-reverse-rotation devices, for solving underground coal mine
When gas explosion accident, high concentration gas by iron winds cylinder adverse current to it is fresh it is distinguished and admirable in, the fresh distinguished and admirable middle personnel's person peace of crisis
Entirely, the problem of causing personnel's death by suffocation.
The technical solution of the utility model includes:
A kind of air duct anti-reverse-rotation device, including iron winds cylinder, further include support rod, the two semicircular anti-reverse cover boards of fan,
Bar and shaft, the support rod are vertically set in iron winds cylinder, and the two fan anti-reverse cover boards are separately positioned on support
Bar two sides are simultaneously hinged by shaft and support rod, and the bar is arranged in anti-reverse cover board close to iron winds cylinder air inlet side.
Nut is additionally provided in the shaft.
The support rod and bar is the round steel of diameter 12mm.
The nut is M14 type nut.
The utility model has the beneficial effects that providing a kind of air duct anti-reverse-rotation device, when underground coal mine is normally divulged information, iron winds
Anti-reverse cover board automatic opening under portable blower wind pressure in cylinder, the normal air feed of iron winds cylinder are outstanding when freeing gas explosion accident
Gas pressure is greater than booster and generates wind pressure, and anti-reverse cover board is closed immediately under the pressure effect of prominent gas, closed
Iron winds cylinder is to block the gas of adverse current, while anti-reverse cover board is blocked by bar, it is ensured that anti-reverse cover board will not be turned over
Degree, effective solution underground coal mine occur gas explosion accident when, high concentration gas by iron winds cylinder adverse current to it is fresh it is distinguished and admirable in,
The fresh distinguished and admirable middle personnel's personal safety of crisis, ensures personal safety to greatest extent, prevents calamity the problem of causing personnel's death by suffocation
Evil diffusion causes secondary disaster.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the enlarged diagram of a-quadrant in Fig. 1；
Fig. 3 is the utility model mounting structure schematic diagram；
It is identified in figure: 1, iron winds cylinder, 2, support rod, 3, anti-reverse cover board, 4, bar, 5, shaft, 6, nut.
Specific embodiment
The utility model is described further with reference to the accompanying drawing, a kind of air duct anti-reverse dress described in the utility model
It sets, including iron winds cylinder 1, further includes that support rod 2, two fans semicircular anti-reverse cover board 3, bar 4 and shaft 5, the support
Bar 2 is vertically set in iron winds cylinder 1, and the two fan anti-reverse cover boards 3 are separately positioned on 2 two sides of support rod and by shaft 5
Hinged with support rod 2, the bar 4 is arranged in anti-reverse cover board 3 close to 1 air inlet side of iron winds cylinder.
It is additionally provided with nut 6 in the shaft 5, is used for fixed rotating shaft 5.
The support rod 2 and bar 4 is the round steel of diameter 12mm, has better mechanical strength, it is ensured that support rod 2
Anti-reverse cover board 3 can be effectively supported, meanwhile, bar 4 can block effect anti-reverse cover board 3, it is ensured that anti-reverse cover board 3 will not turn over
Degree of turning over.
The nut 6 is M14 type nut.
Range is the position of utility model device installation as shown by dotted lines in figure 3, and being not prevented from extrusion deformation causes this practical
The novel failure of apparatus, forbids to be installed in anti-reverse-rotation device in protrusion-dispelling air door wall, and after being mounted in protrusion-dispelling air door
Iron winds cylinder 1 in, while the utility model needs to inject capital into few, can voluntarily process to obtain.
Working principle of the utility model is: anti-reverse cover board 3 is in portable blower in iron winds cylinder 1 when underground coal mine is normally divulged information
Automatic opening under wind pressure, the normal air feed of iron winds cylinder 1, when freeing gas explosion accident, it is logical that gas pressure outstanding is greater than part
When blower generates wind pressure, anti-reverse cover board 3 is closed immediately under the pressure effect of prominent gas, and closing iron winds cylinder 1 is to block
The gas of adverse current, while anti-reverse cover board 3 is blocked by bar 4, it is ensured that anti-reverse cover board 3 will not overturn excessively, effective to solve
Underground coal mine of having determined occur gas explosion accident when, high concentration gas by iron winds cylinder adverse current to it is fresh it is distinguished and admirable in, crisis is fresh
Distinguished and admirable middle personnel's personal safety, ensures personal safety the problem of causing personnel's death by suffocation to greatest extent, prevents disaster diffusion from drawing
Send out secondary disaster.
Claims (4)
1. a kind of air duct anti-reverse-rotation device, including iron winds cylinder (1), it is characterised in that: further include support rod (2), two fan semicircles
Anti-reverse cover board (3), bar (4) and shaft (5), the support rod (2) is vertically set in iron winds cylinder (1), described
Two fans anti-reverse cover board (3) are separately positioned on support rod (2) two sides and pass through shaft (5) and support rod (2) hingedly, the gear
Bar (4) setting is in anti-reverse cover board (3) close to iron winds cylinder (1) air inlet side.
2. a kind of air duct anti-reverse-rotation device according to claim 1, it is characterised in that: also set up in the shaft (5)
There are nut (6).
3. a kind of air duct anti-reverse-rotation device according to claim 1, it is characterised in that: the support rod (2) and bar
(4) be diameter 12mm round steel.
4. a kind of air duct anti-reverse-rotation device according to claim 2, it is characterised in that: the nut (6) is M14 type spiral shell
It is female.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821105383.9U CN208456654U (en) | 2018-07-12 | 2018-07-12 | A kind of air duct anti-reverse-rotation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821105383.9U CN208456654U (en) | 2018-07-12 | 2018-07-12 | A kind of air duct anti-reverse-rotation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208456654U true CN208456654U (en) | 2019-02-01 |
Family
ID=65170787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821105383.9U Active CN208456654U (en) | 2018-07-12 | 2018-07-12 | A kind of air duct anti-reverse-rotation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208456654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625891A (en) * | 2018-07-12 | 2018-10-09 | 贵州盘江精煤股份有限公司 | A kind of air duct anti-reverse-rotation device for underground coal mine |
-
2018
- 2018-07-12 CN CN201821105383.9U patent/CN208456654U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625891A (en) * | 2018-07-12 | 2018-10-09 | 贵州盘江精煤股份有限公司 | A kind of air duct anti-reverse-rotation device for underground coal mine |
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