CN203809033U - Pressure relief type automatic reset anti-explosion air well lid - Google Patents
Pressure relief type automatic reset anti-explosion air well lid Download PDFInfo
- Publication number
- CN203809033U CN203809033U CN201420195196.XU CN201420195196U CN203809033U CN 203809033 U CN203809033 U CN 203809033U CN 201420195196 U CN201420195196 U CN 201420195196U CN 203809033 U CN203809033 U CN 203809033U
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- pressure relief
- hinged
- lid
- well lid
- relief device
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Abstract
The utility model discloses a pressure relief type automatic reset anti-explosion air well lid and relates to the technical field of ventilation safety of coal mine. The pressure relief type automatic reset anti-explosion air well lid comprises a well lid body on a well mouth, at least two guide sleeves are connected with the periphery of the well lid body, each guide sleeve is provided with a guide column in a penetrating mode, the top end of each guide column is provided with an elastic limit block, the middle of the upper portion of the well lid body is connected with a stand column and at least one pressure relief device, each pressure relief device is connected with a locking mechanism and comprises a pressure relief barrel, a lid door is hinged to the upper portion of each pressure relief barrel, an inner air spring is hinged to the interior of each pressure relief barrel, the telescopic end of each inner air spring is hinged to the inner side of the corresponding lid door, outer air springs are hinged to the stand column, the telescopic end of each outer air spring is hinged to the outer side of the corresponding lid door, at least two hydraulic type lifters are connected with the lower portion of the well lid body, and stroke switches are connected to the stand column. The lid doors make contact with the corresponding stroke switches when opened, and the hydraulic type lifters are started to work. The pressure relief type automatic reset air well anti-explosion cover is safe and reliable.
Description
Technical field
The utility model relates to coalmine ventilation safety technics field, relates in particular to the structure of Explosion-proof cap.
Background technology
At present, gas explosion causes huge personal casualty loss and property loss to country and society as the No.1 killer of safety of coal mines.When after gas explosion due to mine explosion lid generation gross distortion or dished out by high pressure, down-hole air-flow and ground air generation Air escape branch, the toxic gases such as CO cannot effectively be discharged and be caused mass casualties.In addition, due to the needs of downhole rescuing, often need mine to carry out inverted ventilation, and now because Explosion-proof cap often can not be closed in time, cause Air escape branch simultaneously, thereby affect downhole rescuing work.Thereby after generation gas explosion, safety effect how to bring into play to greatest extent Explosion-proof cap just seems very important.Be fixed and existing mine explosion lid mostly uses, cause Explosion-proof cap to damage if there is gas explosion, thereby affect downhole rescuing work.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, and a kind of safe and reliable pressure release type ventilating shaft Explosion-proof cap that automatically resets is provided.
The purpose of this utility model is achieved in that the pressure release type ventilating shaft Explosion-proof cap that automatically resets, comprise the well lid being arranged on well head, neighboring at described well lid along the circumferential direction connects at least two guide pin bushings, in each guide pin bushing, place respectively guide pillar, the lower end of every guide pillar is individually fixed in pithead position, and the top of every guide pillar is respectively equipped with elastic spacing piece; The middle part of described well lid top connects a root post and at least one pressure relief device, and each pressure relief device is arranged in the periphery of column, connects respectively retaining mechanism on each pressure relief device; Each pressure relief device comprises respectively pressure release cylinder, the top of each pressure release cylinder is hinged lid door respectively, the hinged interior air spring of difference in each pressure release cylinder, the telescopic end of each interior air spring is hinged with corresponding lid door inner side, the hinged outer air spring equating with lid door quantity on described column, the telescopic end of each outer air spring is hinged with corresponding lid outer side of door respectively; Below described well lid, connect at least two fluid pressure type lifting machines, on described column, connect the travel switch equating with lid door quantity, each travel switch is lateral arrangement respectively, in the time that opening, each lid door contacts with corresponding travel switch respectively, and the work of primer fluid pressure type lifting machine.
In the time that accident is blasted in down-hole, the shock wave of down-hole produces surge and slightly backs down the lid door of pressure relief device and flick retaining mechanism, just can trigger interior air spring work, opens rapidly the lid door of pressure relief device; In the time that being opened to a certain degree, the lid door of pressure relief device contacts with travel switch; make its primer fluid pressure type lifting machine work; lifting plays Explosion-proof cap and carries out pressure release; thereby avoid being greater than the pressure relief device institute pressure release limit at shock wave pressure; and when being less than lifting and playing Explosion-proof cap pressure; wash out pressure relief device, pressure relief device is played a protective role.After shock wave pressure release is complete, because outer air spring internal gas pressure is greater than interior air spring internal gas pressure; Make the lid door of pressure relief device slowly closed, in the time that lid door disconnects with travel switch, fluid pressure type lifting machine stops lifting, slowly bounces back to well head closure downwards.The lid door of pressure relief device, by the rear locking lid door in retaining mechanism below, is realized auto-reset function, thereby ventilation system is normally worked.The Explosion-proof cap making due to the effect of pressure relief device can not need to bear larger pressure and just can rise, and can make the use of Explosion-proof cap continuous several times, without breaks in production, it is changed and is keeped in repair, thereby saved time and cost.
Each retaining mechanism of the present utility model comprises respectively the lock sleeve of lateral arrangement, each lock sleeve is connected with corresponding pressure release cylinder by junction plate respectively, spring and locking pin are set respectively in each lock sleeve, each locking pin is set in respectively on corresponding lock sleeve, one end that each locking pin stretches out lock sleeve is respectively taper and contacts setting with corresponding lid door, the other end of every locking pin is wholely set respectively positive stop lug boss, and each positive stop lug boss is separately positioned on and locks accordingly in cover.
The utility model, by above design, has the following advantages: 1, in the time that underground ventilating is normal, Explosion-proof cap, in closed condition, ensures that down-hole normally ventilates.In the time blasting in down-hole, down-hole pressure is opened the pressure relief device on Explosion-proof cap in advance, and then Explosion-proof cap is moved upward along guide pillar direction by the effect of down-hole pressure, and down-hole pressure is declined rapidly, safe.2, can be independent according to shock wave pressure size pressure relief device or multiple whiles automatically open and automatically reset, and repeatedly pressure release, balanced lane internal pressure, makes the entirety power that is hit even, protection Explosion-proof cap is not damaged.3, when surge is slightly backed down the lid door of pressure relief device and by retaining mechanism, interior air spring work just can be triggered in top, opens rapidly pressure relief device; In the time that being opened to a certain degree, the lid door of pressure relief device contacts with travel switch; make its primer fluid pressure type lifting machine work; lifting plays Explosion-proof cap and carries out pressure release; thereby avoid being greater than the pressure relief device institute pressure release limit at shock wave pressure; and when being less than lifting and playing Explosion-proof cap pressure; wash out pressure relief device, pressure relief device is played a protective role.4, after shock wave pressure release is complete, because outer air spring internal gas pressure is greater than interior air spring internal gas pressure; Make pressure relief device upper cover door slowly closed, in the time that lid door disconnects with travel switch, fluid pressure type lifting machine stops lifting, slowly bounces back to Explosion-proof cap and well head closure downwards.Pressure relief device upper cover door is by the rear locking lid door in retaining mechanism below.Realize auto-reset function.5, be explosion-proofly stamped several fluid pressure type lifting machines, at mine during without plan blowing-out, these fluid pressure type lifting machine synchronous workings, can remote switch ventilating shaft Explosion-proof cap, has reduced time and manpower.6, pressure relief device on Explosion-proof cap, does not trigger fluid pressure type lifting machine when work when shock wave pressure can carry out complete pressure release by multiple pressure relief devices, can realize that noenergy consumes.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is A portion enlarged drawing in Fig. 1.
Fig. 4 is the structural representation of pressure relief device.
Fig. 5 is the structural representation that pressure relief device is opened.
In figure, 1 well head, 2 Explosion-proof caps, 3 guide pin bushings, 4 guide pillars, 5 elastic spacing pieces, 6 pressure relief devices, 7 fluid pressure type lifting machines, 8 outer air springs, 9 retaining mechanisms, 9-1 lock sleeve, 9-2 junction plate, 9-3 spring, 9-4 locking pin, 9-5 positive stop lug boss, 10 interior air springs, 11 travel switches, 12 columns, 13 pressure release cylinders, 14 lid doors.
Detailed description of the invention
As Figure 1-5, the utility model mainly comprises the well lid 2 being arranged on well head 1, along the circumferential direction connect three guide pin bushings 3 in the neighboring of well lid 2, each guide pin bushing 3 is interior places respectively two guide pillars 4, the lower end of every guide pillar 4 is individually fixed in well head 1 position, and the top of every guide pillar 4 is respectively equipped with elastic spacing piece 5.The middle part of well lid 2 tops connects a root post 12 and four pressure relief devices 6, and each pressure relief device 6 is along the circumferential direction arranged in the outside of column 12, on each pressure relief device 6, connects respectively retaining mechanism 9.Each pressure relief device 6 comprises respectively pressure release cylinder 13, the top of each pressure release cylinder 13 is hinged lid door 14 respectively, the hinged interior air spring 10 of the interior difference of each pressure release cylinder 13, the telescopic end of each interior air spring 10 is hinged with corresponding lid door 14 inner sides, hinged and four outer air springs 8 on column 12, the telescopic end of each outer air spring 8 is hinged with corresponding lid door 14 outsides respectively.Below well lid 2, connect at least two fluid pressure type lifting machines 7, on column 12, connect four travel switches 11, each travel switch 11 lateral arrangement respectively, in the time that opening, each lid door 14 contacts with corresponding travel switch 11 respectively, the signal output part of travel switch 11 is connected on the control circuit of fluid pressure type lifting machine 7, primer fluid pressure type lifting machine 7 is worked, and lifting plays well lid 2 and carries out pressure release.
Each retaining mechanism 9 comprises respectively the lock sleeve 9-1 of lateral arrangement, each lock sleeve 9-1 is connected with corresponding pressure release cylinder 13 by junction plate 9-2 respectively, spring 9-3 and locking pin 9-4 are set respectively in each lock sleeve 9-1, each locking pin 9-4 is set in respectively on corresponding lock sleeve 9-1, one end that each locking pin 9-4 stretches out lock sleeve is respectively taper and contacts setting with corresponding lid door 14, the other end of every locking pin 9-4 is wholely set respectively positive stop lug boss 9-5, and each positive stop lug boss 9-5 is separately positioned on and locks accordingly in cover 9-1.
Claims (2)
1. the pressure release type ventilating shaft Explosion-proof cap that automatically resets, comprise the well lid being arranged on well head, it is characterized in that: the neighboring at described well lid along the circumferential direction connects at least two guide pin bushings, in each guide pin bushing, place respectively guide pillar, the lower end of every guide pillar is individually fixed in pithead position, and the top of every guide pillar is respectively equipped with elastic spacing piece; The middle part of described well lid top connects a root post and at least one pressure relief device, and each pressure relief device is arranged in the periphery of column, connects respectively retaining mechanism on each pressure relief device; Each pressure relief device comprises respectively pressure release cylinder, the top of each pressure release cylinder is hinged lid door respectively, the hinged interior air spring of difference in each pressure release cylinder, the telescopic end of each interior air spring is hinged with corresponding lid door inner side, the hinged outer air spring equating with lid door quantity on described column, the telescopic end of each outer air spring is hinged with corresponding lid outer side of door respectively; Below described well lid, connect at least two fluid pressure type lifting machines, on described column, connect the travel switch equating with lid door quantity, each travel switch is lateral arrangement respectively, in the time that opening, each lid door contacts with corresponding travel switch respectively, and the work of primer fluid pressure type lifting machine.
2. the pressure release type according to claim 1 ventilating shaft Explosion-proof cap that automatically resets, it is characterized in that: described each retaining mechanism comprises respectively the lock sleeve of lateral arrangement, each lock sleeve is connected with corresponding pressure release cylinder by junction plate respectively, spring and locking pin are set respectively in each lock sleeve, each locking pin is set in respectively on corresponding lock sleeve, one end that each locking pin stretches out lock sleeve is respectively taper and contacts setting with corresponding lid door, the other end of every locking pin is wholely set respectively positive stop lug boss, each positive stop lug boss is separately positioned on and locks accordingly in cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420195196.XU CN203809033U (en) | 2014-04-22 | 2014-04-22 | Pressure relief type automatic reset anti-explosion air well lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420195196.XU CN203809033U (en) | 2014-04-22 | 2014-04-22 | Pressure relief type automatic reset anti-explosion air well lid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809033U true CN203809033U (en) | 2014-09-03 |
Family
ID=51447804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420195196.XU Withdrawn - After Issue CN203809033U (en) | 2014-04-22 | 2014-04-22 | Pressure relief type automatic reset anti-explosion air well lid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809033U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953382A (en) * | 2014-04-22 | 2014-07-30 | 扬州市江隆矿业设备有限公司 | Pressure releasing automatic reset air shaft anti-explosion cover |
| USD804653S1 (en) | 2015-06-12 | 2017-12-05 | Emd Millipore Corporation | Pressure vessel |
| US10088398B2 (en) | 2015-02-11 | 2018-10-02 | Emd Millipore Corporation | Stirred cell and method of using same |
-
2014
- 2014-04-22 CN CN201420195196.XU patent/CN203809033U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953382A (en) * | 2014-04-22 | 2014-07-30 | 扬州市江隆矿业设备有限公司 | Pressure releasing automatic reset air shaft anti-explosion cover |
| CN103953382B (en) * | 2014-04-22 | 2015-12-23 | 扬州市江隆矿业设备有限公司 | Pressure release type automatically resets ventilating shaft Explosion-proof cap |
| US10088398B2 (en) | 2015-02-11 | 2018-10-02 | Emd Millipore Corporation | Stirred cell and method of using same |
| US10656060B2 (en) | 2015-02-11 | 2020-05-19 | Emd Millipore Corporation | Stirred cell and method of using same |
| USD804653S1 (en) | 2015-06-12 | 2017-12-05 | Emd Millipore Corporation | Pressure vessel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140903 Effective date of abandoning: 20151223 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |