CN217519297U - Simple temporary refuge chamber exhaust valve - Google Patents
Simple temporary refuge chamber exhaust valve Download PDFInfo
- Publication number
- CN217519297U CN217519297U CN202221349367.0U CN202221349367U CN217519297U CN 217519297 U CN217519297 U CN 217519297U CN 202221349367 U CN202221349367 U CN 202221349367U CN 217519297 U CN217519297 U CN 217519297U
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- China
- Prior art keywords
- refuge chamber
- exhaust pipe
- sealing
- cover plate
- sealing cover
- 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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- 238000007789 sealing Methods 0.000 claims abstract description 82
- 230000006835 compression Effects 0.000 claims abstract description 17
- 238000007906 compression Methods 0.000 claims abstract description 17
- 230000009471 action Effects 0.000 claims abstract description 7
- 231100000614 poison Toxicity 0.000 abstract description 3
- 230000007096 poisonous effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 15
- 230000005484 gravity Effects 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000003245 coal Substances 0.000 description 5
- 231100000331 toxic Toxicity 0.000 description 5
- 230000002588 toxic effect Effects 0.000 description 5
- 238000002788 crimping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
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- Safety Valves (AREA)
Abstract
The utility model discloses a simple temporary refuge chamber vent valve, which comprises a sealing cover plate, a sealing base plate and an elastic compression reset assembly, wherein the sealing base plate is bonded on the inner side surface of the sealing cover plate, the upper end edge of the sealing cover plate is rotationally connected to the upper side of the outer port of a one-way vent pipe of a refuge chamber through a hinge, and the elastic compression reset assembly is arranged on the lower end edge of the sealing cover plate and is fixedly connected with the lower side of the outer port of the one-way vent pipe of the refuge chamber; under the action of the elastic compression resetting assembly, the inner side surface of the sealing base plate is in compression joint sealing with the annular end surface of the outer end opening of the one-way exhaust pipe. When the accident happens the utility model discloses can effectively separate outside poisonous and harmful gas and get into in the refuge chamber, can make the interior gas outgoing of refuge chamber again, make keep a relatively stable atmospheric pressure in the refuge chamber, its simple structure is convenient for make, assemble and overhaul, and safe and reliable economic nature is good, provides the guarantee for the personal safety of the personnel of taking shelter from in the refuge chamber, and the facilitate promotion is used.
Description
Technical Field
The utility model belongs to the technical field of the coal mine safety in production, concretely relates to simple and easy temporary refuge chamber discharge valve.
Background
When accidents such as coal and gas outburst, explosion, fire hazard, roof fall and the like occur in a coal mine, so that the situations such as toxic and harmful gas filling in a tunnel, tunnel blockage and the like are caused, and people in danger cannot safely evacuate from a disaster site, the people in danger can quickly enter an emergency evacuation facility to wait for rescue. The refuge chamber serving as an important component of an underground emergency refuge system can resist the impact of gas explosion and isolate toxic gas, and particularly can provide a safe and closed living space for people who cannot evacuate timely after an underground mine disaster occurs and provide survival necessities such as oxygen, food, water and the like for refuge personnel so as to strive for precious rescue time for people.
According to the stipulation of 'safety supervision general coal charging [ 2012 ] 15' about the related matters of the construction and management of the underground coal mine emergency refuge system, an isolation door of the temporary refuge chamber meets the requirement of air tightness, a one-way exhaust pipe is arranged on a door wall, and an isolated self-rescuer with enough food, first-aid supplies and protection time not less than 45 minutes is arranged in the chamber and is provided with a compressed air self-rescuer. When a compressed air supply system and a gas curtain spraying system of the refuge chamber are in a normal working state, a large amount of air can be released by the compressed air supply system and the gas curtain spraying system, so that the air pressure in the refuge chamber rises suddenly, the air pressure in the refuge chamber is always kept higher than the external air pressure, and in order to solve the problem, a manual or automatic exhaust valve is generally arranged at an air inlet (an inner port of a one-way exhaust pipe, which is arranged in the refuge chamber) of a one-way exhaust pipe in the conventional refuge chamber. Therefore, in order to solve the above problems, it is necessary to design a simple exhaust device for a refuge chamber.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the weak point among the prior art, provide a simple and easy interim refuge chamber discharge valve of installing at one-way blast pipe outer port, it can enough obstruct the outdoor poisonous and harmful gas of refuge chamber get into inside the refuge chamber, can guarantee the safety of inside personnel and equipment again, also can be outside the air escape chamber with the indoor air when the atmospheric pressure in the refuge chamber rises to higher numerical value, make the refuge chamber maintain a suitable atmospheric pressure to simple structure is convenient for make and the installation.
In order to solve the technical problem, the utility model adopts the following technical scheme: a simple temporary refuge chamber exhaust valve comprises a sealing cover plate, a sealing base plate and an elastic compression reset assembly, wherein the sealing base plate is bonded on the inner side surface of the sealing cover plate, the upper end edge of the sealing cover plate is rotatably connected to the upper side of an external port of a one-way exhaust pipe of a refuge chamber through a hinge, and the elastic compression reset assembly is arranged on the lower end edge of the sealing cover plate and is fixedly connected with the lower side of the external port of the one-way exhaust pipe of the refuge chamber; under the action of the elastic compression resetting assembly, the inner side surface of the sealing base plate is in compression joint sealing with the annular end surface of the outer end opening of the one-way exhaust pipe.
Elastic compression reset assembly includes the mount, the clamp plate, the bolt, spring and nut, the mount is fixed to be established at one-way exhaust pipe outer port downside, clamp plate fixed connection side and with the coplanar setting of sealed apron under the sealed apron, the perforation has been seted up on the clamp plate, the perforation aperture is greater than the bolt external diameter and is less than the spring internal diameter, the perforation on the bolt passes the clamp plate, bolt one end fixed connection is on the mount, the nut is from the other end threaded connection of bolt on the bolt, the spring housing is on the bolt, the spring both ends respectively with nut and sealed apron top press-fit.
The one-way exhaust pipe is horizontally arranged along the left-right direction, the outer port of the one-way exhaust pipe is positioned at the left end of the one-way exhaust pipe, the plane where the outer port of the one-way exhaust pipe is positioned is obliquely arranged in a mode that the left end is lower than the right end, and the plane and the central line of the one-way exhaust pipe form an included angle of 45 degrees.
The sealing base plate is made of a rubber plate, the sealing cover plate and the sealing base plate are fixedly connected into a whole through a plurality of countersunk head screws, a plurality of threaded blind holes are uniformly formed in the inner side face of the sealing cover plate, and the countersunk head screws penetrate through the sealing base plate and are in threaded connection with the corresponding threaded blind holes.
Adopt above-mentioned technical scheme, install on the refuge chamber wall by the steel pipe as the one-way blast pipe of refuge chamber, the air inlet is inside the refuge chamber, the utility model discloses install the outer port at one-way blast pipe, sealed apron adopts the steel sheet, and sealed backing plate adhesive tape is on sealed apron surface, sets up a plurality of countersunk screw and will seal the gasket crimping to sealed apron on for the reliability of being connected between sealed apron and the sealed backing plate, avoids for a long time not using, and sealed apron breaks away from and influences synchronous the opening and shutting with sealed backing plate.
The sealing base plate is a rubber plate, and has the main functions of ensuring air tightness and preventing external toxic and harmful gases from entering the refuge chamber and preventing the sealing cover plate and the steel one-way exhaust pipe from colliding to generate sparks to detonate combustible gases; the sealing cover plate has the main functions of fixing the sealing base plate, preventing external shock waves from damaging the exhaust device, and providing pre-tightening force for the sealing base plate under the action of self gravity and a spring to improve the sealing effect between the sealing base plate and the outer end opening of the one-way exhaust pipe; the spring mainly has the functions of providing a pretightening force for the sealing base plate, preventing a gap between the sealing base plate and the outer end port of the one-way exhaust pipe, and controlling the pressing force of the spring through the nut, so that the function of adjusting the air pressure in the refuge chamber is achieved.
When the force of the air pressure in the refuge chamber acting on the sealing cover plate is larger than the gravity of the sealing cover plate and the pressing force of the spring, the air pressure pushes the sealing cover plate to rotate upwards by the fulcrum of the hinge, the spring is compressed, a gap is generated between the sealing base plate and the outer end port of the one-way exhaust pipe, the valve is opened, the air in the refuge chamber is exhausted through the one-way exhaust pipe, the air pressure in the refuge chamber drops, the spring presses the sealing cover plate tightly, the sealing base plate tightly presses the outer end port of the one-way exhaust pipe, and the valve is closed. The valve is in a normally closed state under the action of the gravity of the sealing cover plate and the pretightening force of the spring, so that toxic and harmful gas outside the refuge chamber is effectively prevented from entering the refuge chamber.
The plane of the outer port of the one-way exhaust pipe is obliquely arranged in a mode that the left part is lower than the right part, and the included angle of the plane and the center line of the one-way exhaust pipe is 45 degrees, so that the self gravity of the sealing cover plate is also used as the pre-tightening sealing pressure of the sealing base plate to share part of the pre-tightening force of the spring.
To sum up, the utility model discloses the effectual ventilation system safety problem of solution refuge chamber can effectively obstruct outside poisonous and harmful gas and get into in the refuge chamber when the occurence of failure, can make the interior gas outgoing of refuge chamber again, make the interior atmospheric pressure that keeps a relatively stable of refuge chamber, this valve make full use of the gravity of self and the compressive stress of spring have realized the leakproofness, the elasticity of having utilized the spring again has guaranteed gas passability, its simple structure is convenient for make, assemble and overhaul, and safe and reliable economic nature is good, provide the guarantee for the personal safety of the personnel of taking shelter from in the refuge chamber, and the facilitate promotion is used.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a view from direction a in fig. 1.
Detailed Description
As shown in fig. 1 and 2, the simple temporary refuge chamber exhaust valve of the utility model comprises a sealing cover plate 1, a sealing pad 2 and an elastic pressing reset component, wherein the sealing pad 2 is bonded on the inner side surface of the sealing cover plate 1, the upper end edge of the sealing cover plate 1 is rotatably connected to the upper side of the outer port of the one-way exhaust pipe 4 of the refuge chamber through a hinge 3, and the elastic pressing reset component is arranged on the lower end edge of the sealing cover plate 1 and is fixedly connected with the lower side of the outer port of the one-way exhaust pipe 4 of the refuge chamber; under the action of the elastic compression resetting component, the inner side surface of the sealing backing plate 2 is in compression joint sealing with the annular end surface of the outer port of the one-way exhaust pipe 4.
Elastic compression reset assembly includes mount 5, clamp plate 6, bolt 7, spring 8 and nut 9, mount 5 is fixed to be established at 4 outer ports of one-way blast pipe downside, 6 fixed connection of clamp plate are at 1 lower side of sealed apron and with 1 coplanar setting of sealed apron, perforation 10 has been seted up on the clamp plate 6, perforation 10 aperture is greater than the 7 external diameters of bolt and is less than the 8 internal diameters of spring, bolt 7 passes perforation 10 on the clamp plate 6, 7 one end fixed connection of bolt is on mount 5, nut 9 is from the other end threaded connection of bolt 7 on bolt 7, 8 covers on bolt 7 of spring, 8 both ends of spring cooperate with 1 roof pressure of nut 9 and sealed apron respectively.
One-way blast pipe 4 sets up along left right direction level, and 4 outer ports of one-way blast pipe are located 4 left ends of one-way blast pipe, and the high slope setting in the low right side in the plane at 4 outer ports of one-way blast pipe place, this plane and 4 central lines of one-way blast pipe are 45 contained angles.
Sealing pad board 2 adopts the rubber slab, and is as an organic whole through 11 fixed connection of a plurality of countersunk screw between sealing cover plate 1 and the sealing pad board 2, and 1 medial surface of sealing cover plate evenly is equipped with a plurality of screw thread blind hole, and countersunk screw 11 passes sealing pad board 2 and the screw thread blind hole threaded connection who corresponds.
Regard as the one-way blast pipe 4 of refuge chamber by the steel pipe, install on the refuge chamber wall, the air inlet is inside the refuge chamber, the utility model discloses install the outer port at one-way blast pipe 4, sealed apron 1 adopts the steel sheet, and sealed backing plate 2 leads to the glue and is being glued on sealed apron 1 surface, sets up a plurality of countersunk screw 11 with sealed backing plate 2 crimping to sealed apron 1 in order to strengthen the reliability of being connected between sealed apron 1 and the sealed backing plate 2 simultaneously, avoids not using for a long time, and sealed apron 1 breaks away from and influences the synchronous opening and shutting with sealed backing plate 2.
The sealing base plate 2 is a rubber plate, and has the main functions of ensuring air tightness and preventing external toxic and harmful gases from entering the refuge chamber and preventing the sealing cover plate 1 and the steel one-way exhaust pipe 4 from colliding to generate sparks to detonate inflammable gases; the sealing cover plate 1 has the main functions of fixing the sealing base plate 2, preventing external shock waves from damaging the exhaust device, and improving the sealing effect between the sealing base plate 2 and the outer port of the one-way exhaust pipe 4 by giving a pretightening force to the sealing base plate 2 under the action of self gravity and a spring 8; the spring 8 mainly has the function of giving a pretightening force to the sealing backing plate 2 to prevent a gap between the sealing backing plate 2 and the outer port of the one-way exhaust pipe 4, and the pressing force of the spring 8 is controlled by a nut 9, so that the function of adjusting the air pressure in the refuge chamber is achieved.
When the force of the air pressure in the refuge chamber on the sealing cover plate 1 is larger than the gravity of the sealing cover and the pressing force of the spring 8, the air pressure pushes the sealing cover plate 1 to rotate upwards by the fulcrum of the hinge 3, the spring 8 is compressed, a gap is formed between the sealing cushion plate 2 and the outer port of the one-way exhaust pipe 4, the valve is opened, the air in the refuge chamber is exhausted through the one-way exhaust pipe 4, the air pressure in the refuge chamber is reduced, the spring 8 presses the sealing cover plate 1 tightly, the sealing cushion plate 2 presses the outer port of the one-way exhaust pipe 4 tightly, and the valve is closed. Due to the gravity of the sealing cover plate 1 and the pretightening force of the spring 8, the valve is in a normally closed state, so that toxic and harmful gas outside the refuge chamber is effectively prevented from entering the refuge chamber.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.
Claims (4)
1. The utility model provides a simple and easy interim refuge chamber discharge valve which characterized in that: the device comprises a sealing cover plate, a sealing base plate and an elastic compression resetting assembly, wherein the sealing base plate is bonded on the inner side surface of the sealing cover plate, the upper end edge of the sealing cover plate is rotatably connected to the upper side of the outer port of the one-way exhaust pipe of the refuge chamber through a hinge, and the elastic compression resetting assembly is arranged on the lower end edge of the sealing cover plate and is fixedly connected with the lower side of the outer port of the one-way exhaust pipe of the refuge chamber; under the action of the elastic compression resetting assembly, the inner side surface of the sealing base plate is in compression joint sealing with the annular end surface of the outer end opening of the one-way exhaust pipe.
2. The simple temporary refuge chamber vent valve of claim 1, wherein: elastic compression reset assembly includes the mount, the clamp plate, the bolt, spring and nut, the mount is fixed to be established at one-way exhaust pipe outer port downside, clamp plate fixed connection side and with the coplanar setting of sealed apron under the sealed apron, the perforation has been seted up on the clamp plate, the perforation aperture is greater than the bolt external diameter and is less than the spring internal diameter, the perforation on the bolt passes the clamp plate, bolt one end fixed connection is on the mount, the nut is from the other end threaded connection of bolt on the bolt, the spring housing is on the bolt, the spring both ends respectively with nut and sealed apron top press-fit.
3. The simple temporary refuge chamber vent valve of claim 1 or 2, wherein: the one-way exhaust pipe is horizontally arranged along the left-right direction, the outer port of the one-way exhaust pipe is positioned at the left end of the one-way exhaust pipe, the left side of the plane where the outer port of the one-way exhaust pipe is positioned is lower than the right side, the left side of the plane is higher than the right side of the plane, and the plane and the center line of the one-way exhaust pipe form an included angle of 45 degrees.
4. The simple temporary refuge chamber vent valve of claim 1 or 2, wherein: the sealing base plate is made of a rubber plate, the sealing cover plate and the sealing base plate are fixedly connected into a whole through a plurality of countersunk head screws, a plurality of threaded blind holes are uniformly formed in the inner side face of the sealing cover plate, and the countersunk head screws penetrate through the sealing base plate and are in threaded connection with the corresponding threaded blind holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221349367.0U CN217519297U (en) | 2022-06-01 | 2022-06-01 | Simple temporary refuge chamber exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221349367.0U CN217519297U (en) | 2022-06-01 | 2022-06-01 | Simple temporary refuge chamber exhaust valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217519297U true CN217519297U (en) | 2022-09-30 |
Family
ID=83390611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221349367.0U Expired - Fee Related CN217519297U (en) | 2022-06-01 | 2022-06-01 | Simple temporary refuge chamber exhaust valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217519297U (en) |
-
2022
- 2022-06-01 CN CN202221349367.0U patent/CN217519297U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20220930 |