CN203603957U - Shock-resistant shaft well explosion-proof door - Google Patents
Shock-resistant shaft well explosion-proof door Download PDFInfo
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- CN203603957U CN203603957U CN201320467117.1U CN201320467117U CN203603957U CN 203603957 U CN203603957 U CN 203603957U CN 201320467117 U CN201320467117 U CN 201320467117U CN 203603957 U CN203603957 U CN 203603957U
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Abstract
The utility model relates to a shock-resistant shaft well explosion-proof door which mainly comprises electric winches, electric push rods, buffers, a door frame, door plates, supports, counterweights, a crossbeam, steel wire rope directive wheels, etc. The shock-resistant shaft well explosion-proof door is characterized in that the crossbeam is fixed to the middle of the door frame, and the structure of the door frame is disposed on a base of a shaft well port; the two door plates are hinged to two sides of the door frame respectively and are folded toward the middle onto the crossbeam; the electric winches and the electric push rods are erected in the middle of a base to an outer side of the door frame of the shaft well port; steel wire ropes on the electric winches are connected outside the door plates via the steel wire rope directive wheels and the electric push rods are also connected outside the door plates; the buffers, the supports, the counterweights and counterweight separator plates are symmetrically mounted at two sides of the base to an outer side of the door frame of the shaft well port; the buffers can be in contact with the outside of the door plates; and the counterweights and the counterweight separator plates are arranged closed to the supports and are in connection with the outside of the door plates via the steel wire ropes. The advantages are that the shock-resistant shaft well explosion-proof door is simple in structure and reliable in sealing, can be automatically reset, is convenient to install and maintain, can be operated in a remote manner, etc.
Description
Technical field
The utility model belongs to mine ventilation technology field.Be specifically related to a kind of shock resistance vertical shaft explosion proof door.
Background technology
Existing coal mine explosion-proof cover mostly is conical structure, need lean on artificial or large-scale lifting appliance the counterweight pressing block 90-degree rotation of slinging when inverted ventilation, and one end is pressed on a body, and one end is pressed on the borehole wall, then tightens pre-embedded bolt, wastes time and energy.Owing to mostly adopting at present anti-icing fluid or hydraulic oil seal, once reveal and will be sucked main fan equipment by negative pressure, cause tremendous economic loss, and while there is gas explosion in down-hole, directly can be blown up and be caused Air escape branch, in short time, can not recover ventilation system, have certain potential safety hazard.
Along with safety of coal mines situation is urgent, more and more higher to ventilating shaft explosion-proof door reliability requirement.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, is to improve safety of coal mines, provide a kind of seal reliable, automatically reset, shock resistance vertical shaft explosion proof door that can short time internal locking when inverted ventilation.
For achieving the above object, the technical solution of the utility model is:
A kind of shock resistance vertical shaft explosion proof door, comprises electric winch 1, electric pushrod 2, snubber 3, door frame 4, door-plate 5, support 6, counterweight 8, counterweight dividing plate 9, wire rope 10, crossbeam 11 and guide wheel for steel wire 12; It is characterized in that: described door frame is frame shape, fixed cross beam in the middle of door frame, the frame installation of door frame is on pit mouth basis, and described door-plate has two fans and is hinged on respectively door frame both sides, and closes and close on crossbeam to centre; Centre position outside described electric winch, the door frame that electric pushrod is arranged on respectively pit mouth on basis; Wire rope on described electric winch connects by the outside of guide wheel for steel wire door-plate, and electric pushrod is also connected with the outside of door-plate; Described snubber, support, counterweight and counterweight dividing plate be the position, both sides on basis outside the symmetrical door frame that is arranged on pit mouth respectively; Snubber can contact with door-plate outside, and counterweight and counterweight dividing plate are arranged on by support, and are connected with the outside of door-plate by wire rope.
Above described door frame 4, fixedly mount crossbeam 11; Two described fan door-plates 5 are overlapped on after crossbeam, and form an isosceles triangular structure with the framework of door frame.
Described is also provided with on support 6 sides the bumper bracket 7 being fixedly connected with support.
The shock resistance vertical shaft explosion proof door that the utility model provides; energy short time internal locking in the time of inverted ventilation; down-hole occurs can open moment when gas explosion and discharges the protecting energy ventilation equipment that blast produces and do not damaged by shock wave; and explosion proof door is not blown up distortion; can automatically reset rapidly, recover underground ventilating system normal.Have simple in structure, sealing is reliable, automatically reset, installation and maintenance is convenient, can operated from a distance etc. advantage.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model structure;
Fig. 2 is the top view of the utility model structure.
In figure: electric winch 1, electric pushrod 2, oil buffer 3, door frame 4, door-plate 5, support 6, bumper bracket 7, counterweight 8, counterweight dividing plate 9, wire rope 10 and crossbeam 11.
The specific embodiment
Describe the specific embodiment of the present utility model in detail below in conjunction with accompanying drawing.
One, the structure of shock resistance vertical shaft explosion proof door
As depicted in figs. 1 and 2, a kind of shock resistance vertical shaft explosion proof door; It comprises electric winch 1, electric pushrod 2, snubber 3, door frame 4, door-plate 5, support 6, counterweight 8, counterweight dividing plate 9, wire rope 10, crossbeam 11 and guide wheel for steel wire 12; It is characterized in that: described door frame is frame shape, formed by each separable pieces, fixed cross beam in the middle of door frame, the frame installation of door frame, on pit mouth basis, is surrounded ventilating shaft well head just; Described door-plate has two fans and is hinged on respectively door frame both sides, can freely rotate, and close and close on crossbeam to centre; Centre position outside described electric winch, the door frame that electric pushrod is arranged on respectively pit mouth on basis; Wire rope on described electric winch connects by the outside of guide wheel for steel wire door-plate, and electric pushrod is also connected with the outside of door-plate; Be connected with door-plate 5 by wire rope 10 by electric winch 1, wire rope is walked around the pulley on counterweight rack beam 11, is used for controlling opening of door-plate, and electric pushrod 2 is controlled closing of door-plate 5.Door-plate 5 tightens wire rope 10, the other end of wire rope 10 is connected with weight bracket, above the bracket of weight, be placed with counterweight 8 and counterweight dividing plate 9, wire rope 10 is placed on the pulley on support 6, and the counterweight 8 of door-plate 5, wire rope 10 and support, counterweight dividing plate 9 just connect together like this.The gravity of counterweight 8 and counterweight dividing plate 9 can play certain pulling force by end of door plate 5 like this.
Described snubber, support, counterweight and counterweight dividing plate be the position, both sides on basis outside the symmetrical door frame that is arranged on pit mouth respectively; Snubber can contact with door-plate outside, and counterweight and counterweight dividing plate are arranged on by support, and are connected with the outside of door-plate by wire rope.
Above described door frame 4, fixedly mount crossbeam 11; Two described fan door-plates 5 are overlapped on after crossbeam, and form an isosceles triangular structure with the framework of door frame.
Described is also provided with on support 6 sides the bumper bracket 7 being fixedly connected with support.
Two, operating principle of the present utility model
Colliery is the in the situation that of safety in production at ordinary times, and door-plate 5 is under self gravitation and negative-pressure sucking acting in conjunction, and door-plate 5 is in closed condition.
In the time blasting in colliery, ventilating shaft internal pressure is poly-so to be increased, and door-plate 5 will be opened under shock wave and under the pulling force of counterweight 8 and counterweight dividing plate 9.In the time that door-plate 5 is opened to certain angle, counterweight dividing plate 9 will be fallen on bumper bracket 7, and from this moment, the counterweight 8 that end of door plate 5 works only has a small amount of weight of counterweight dividing plate below 9.The speed that door-plate 5 is opened thenceforth will reduce, and then reduces door-plate 5 and strike the speed of oil buffer 3, and then protection door-plate 5.Meanwhile, in the time that door-plate 5 touches oil buffer 3, because the buffering effect of oil buffer 3 has further been protected the distortion of door-plate 5.The distortion that this is all conducive to reduce door-plate 5, realizes the normal use of shock resistance vertical shaft explosion proof door.
In the time resuming production in colliery, electric pushrod 2 promotes door-plate 5, and it is closed.
When overhaul of the equipments, electric winch 1 pulls wire rope 10, opens door-plate 5.
When back lass, electric pushrod 2 is pushing away door-plate 5, meanwhile, shuts the lock door mechanism on door frame 4, further fixes door-plate 5.
Three, shock resistance vertical shaft explosion proof door operation instruction:
When shock resistance vertical shaft explosion proof door is worked usually, door-plate is together with the rubber on door-plate, and door frame and door frame crossbeam have formed airtight space together with on pit mouth basis, and the air in pit shaft can not flow to by shock resistance vertical shaft explosion proof door extraneous.Counterweight end of door plate plays certain pulling force effect, in guaranteeing shock resistance vertical shaft explosion proof door effective sealing, can by control suspended counterweight piece number control the complexity that explosion proof door is opened.Now, electric pushrod should be at retracted state, and top from door-plate farthest; Wire rope on electric winch is in soft state.
While blasting, door-plate is impacted and opens by blast, strikes above oil buffer, and end of door plate plays cushioning effect.When door-plate is opened to 75 °, counterweight dividing plate touches counterweight buffer, and the weight quantity that plays afterwards pulling force effect reduces, and has reduced to a great extent the distortion of door-plate.
While needing inverted ventilation, open the switch of electric pushrod, close explosion proof door, simultaneously with the fixing door-plate of retaining mechanism.
Need to overhaul time, open electric winch switch, door is opened.
Four, ground is built and installation instructions
Construct in strict accordance with ground drawing, guarantee size between base water Pingdu and stone bolt, reduce error.
When the installation of shock resistance vertical shaft explosion proof door:
The first step, first door frame, counterweight bracing frame, counterweight bumper bracket, oil buffer, electric pushrod, electric winch be installed.
Second step, take out original explosion proof door.
The 3rd step, installation underframe frame crossbeam, door-plate.
The 4th step, suspended counterweight.
Attention: will guarantee that door frame is connected with ground well when door frame is installed, there is no the local joints cement of weld seam to guarantee the sealing of explosion proof door.The part of all installations and welding will guarantee fastness, can not occur loosening defect.
Claims (3)
1. a shock resistance vertical shaft explosion proof door, comprises electric winch (1), electric pushrod (2), snubber (3), door frame (4), door-plate (5), support (6), counterweight (8), counterweight dividing plate (9), wire rope (10), crossbeam (11) and guide wheel for steel wire (12); It is characterized in that: described door frame is frame shape, fixed cross beam in the middle of door frame, the frame installation of door frame is on pit mouth basis, and described door-plate has two fans and is hinged on respectively door frame both sides, and closes and close on crossbeam to centre; Centre position outside described electric winch, the door frame that electric pushrod is arranged on respectively pit mouth on basis; Wire rope on described electric winch connects by the outside of guide wheel for steel wire door-plate, and electric pushrod is also connected with the outside of door-plate; Described snubber, support, counterweight and counterweight dividing plate be the position, both sides on basis outside the symmetrical door frame that is arranged on pit mouth respectively; Snubber can contact with door-plate outside, and counterweight and counterweight dividing plate are arranged on by support, and are connected with the outside of door-plate by wire rope.
2. a kind of shock resistance vertical shaft explosion proof door according to claim 1, is characterized in that: at described door frame (4) top fixed installation crossbeam (11); Two described fan door-plates (5) are overlapped on after crossbeam, and form an isosceles triangular structure with the framework of door frame.
3. a kind of shock resistance vertical shaft explosion proof door according to claim 1, is characterized in that: described is also provided with on support (6) side the bumper bracket (7) being fixedly connected with support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320467117.1U CN203603957U (en) | 2013-08-01 | 2013-08-01 | Shock-resistant shaft well explosion-proof door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320467117.1U CN203603957U (en) | 2013-08-01 | 2013-08-01 | Shock-resistant shaft well explosion-proof door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203603957U true CN203603957U (en) | 2014-05-21 |
Family
ID=50716634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320467117.1U Expired - Fee Related CN203603957U (en) | 2013-08-01 | 2013-08-01 | Shock-resistant shaft well explosion-proof door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203603957U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723486A (en) * | 2019-01-09 | 2019-05-07 | 河南理工大学 | A kind of explosion-proof door of coal miine vertical shaft with auto-reset function |
-
2013
- 2013-08-01 CN CN201320467117.1U patent/CN203603957U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723486A (en) * | 2019-01-09 | 2019-05-07 | 河南理工大学 | A kind of explosion-proof door of coal miine vertical shaft with auto-reset function |
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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 |
Granted publication date: 20140521 Termination date: 20160801 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |