CN202788345U - Rapid locking device for coal mine explosion-proof door - Google Patents
Rapid locking device for coal mine explosion-proof door Download PDFInfo
- Publication number
- CN202788345U CN202788345U CN201220444640.8U CN201220444640U CN202788345U CN 202788345 U CN202788345 U CN 202788345U CN 201220444640 U CN201220444640 U CN 201220444640U CN 202788345 U CN202788345 U CN 202788345U
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- CN
- China
- Prior art keywords
- proof door
- explosion
- coal mine
- locking device
- base
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- Expired - Lifetime
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Abstract
The utility model relates to a rapid locking device for a coal mine explosion-proof door. An existing mine and air shaft explosion-proof door is locked by a chart weight and a bolt, the locking manner can prolong the operating time for locking the explosion-roof door and bring serious threat to ventilation safety of a mine due to the factors of corrosion and rustiness of the bolt, fussy operation of disassembling the chart weight and the like. The rapid locking device for the coal mine explosion-proof door comprises a screw rod, a handwheel, a base and a bracket, wherein one end of the screw rod is connected with a derrick connecting device, and the other end of the screw rod is provided with screw threads and is sleeved with a nut; the upper part of the nut is connected with the handwheel by a key; the lower part of the nut is arranged on the base by a bearing; the base is connected with the bracket by a screw or a bolt; and the lower part of the bracket is provided with a plurality of iron shoes. The rapid locking device for the coal mine explosion-proof door is convenient and rapid to operate and has reliable performance and low fault probability; and in case of air reversing in the mine, the air shaft explosion-proof door can be rapidly locked so as to realize rapid air reversing and ensure ventilation safety. The rapid locking device for the coal mine explosion-proof door is widely suitable for doors in industrial production, which need to be rapidly locked, and is particularly suitable for rapid locking of the coal mine and air shaft explosion-proof door.
Description
Technical field
The utility model relates to a kind of coal mine explosion-proof door quick-locking device.
Background technology
" the main ventilation fan of mine main must be equipped with the inverted ventilation facility to regulation, and can change the wind direction in the tunnel in 9min in " safety regulations in coal mine "." this just need to finish closing of explosion proof door in the short time.And existing mine ventilating shaft explosion-proof door is to lock explosion proof door with foundary weight and bolt, this mode can be because bolt corrosion gets rusty, dismantles the factors such as foundary weight complex operation, cause locking the prolongation of explosion proof door operating time, even can't guarantee the wind direction in the change tunnel in 9min, brought serious threat for the ventilation safety of mine.
The utility model content
The technical problems to be solved in the utility model is the defects that how to overcome prior art, and a kind of coal mine explosion-proof door quick-locking device is provided.
For solving the problems of the technologies described above, this coal mine explosion-proof door quick-locking device comprises screw mandrel, handwheel, base and support, screw mandrel one end connecting well holder connection device wherein, the other end is provided with screw thread, and the cover screw is arranged, this screw top is connected with handwheel by key, the bottom is installed on the base by bearing, base through screws or bolt are connected with support, and the support below is provided with a plurality of skates.
So design has been abandoned and has been used tradition to utilize the mode of foundary weight and bolt-locking explosion proof door, has avoided because bolt corrosion gets rusty, dismantle the locking explosion proof door operating time prolongation that the factor such as foundary weight complex operation causes.This device is by rotation hand wheel, and the support that the screw drive is installed on the base moves, and the skate on the support promotes explosion proof door, and it is closed.Not only simple to operate, convenient, the step link is few, and at the bottom of the equipment failure rate.
As optimization, support comprises flange, support base ring and Duo Gen bracket side connecting rod, and bracket side connecting rod upper end is welded on the flange, and the other end has through hole, described skate is hinged on this through hole by bearing pin, and the support base ring is fixed on the bracket side connecting rod of through hole top.So design, free to rotate by the skate that bearing pin and support are hinged, make support force even, operate more laborsaving.Make simultaneously on the explosion proof door taper surface stressed evenly, play the effect of protection explosion proof door.
As optimization, the skate lower end is provided with rubber tile.So design can make the taper surface of skate and explosion proof door fit tightly.
As optimization, bearing is thrust bearing, has two.So design has not only reduced friction and can bear axial pulling force, and when the rotation hand wheel rotating nut, base and support motion only move reciprocatingly, and can not rotate with nut rotation.
The simple operation of the utility model coal mine explosion-proof door quick-locking device, dependable performance, probability of malfunction is little, when back lass, can the quick locking ventilating shaft explosion-proof door, thus realize quick inverted ventilation, guaranteed ventilation safety.Needing in the industrial production to be widely used in the class of quick locking, to be specially adapted to the quick lock of mine ventilating shaft explosion-proof door.
Description of drawings
Below in conjunction with accompanying drawing this coal mine explosion-proof door quick-locking device is described further:
Fig. 1 is part section (base, the support rip cutting) structural representation (A is the partial structurtes enlarged diagram) of the embodiment one of this coal mine explosion-proof door quick-locking device;
Fig. 2 is the plan structure schematic diagram of the embodiment one of this coal mine explosion-proof door quick-locking device.
Fig. 3 is the structural representation of this ventilating shaft explosion-proof door skate.
Fig. 4 is that the A-A of Fig. 3 is to generalized section.
Among the figure: 1 is that screw mandrel, 2 is that handwheel, 3 is that base, 4 is that support, 5 is that screw, 6 is that bearing, 7 is that skate, 8 is that flange, 9 is that support base ring, 10 is that bracket side connecting rod, 11 is that bearing pin, 12 is that rubber tile, 13 is that substrate, 14 is that side plate, 15 is pin-and-hole.
The specific embodiment
Embodiment one: shown in Fig. 1-4, this coal mine explosion-proof door quick-locking device comprises screw mandrel 1, handwheel 2, base 3 and support 4, screw mandrel 1 one end connecting well holder connection devices wherein, the other end is provided with screw thread, and the cover screw 5 is arranged, these screw 5 tops are connected with handwheel 2 by key, the bottom is installed on the base 3 by bearing 6, base 3 is connected with support 4 by screw or bolt, and support 4 belows are provided with a plurality of skates 7.Support 4 comprises flange 8, support base ring 9 and Duo Gen bracket side connecting rod 10, bracket side connecting rod 10 upper ends are welded on the flange 8, the other end has through hole, and described skate 7 is hinged on this through hole by bearing pin 11, and support base ring 9 is fixed on the bracket side connecting rod 10 of through hole top.Skate 7 lower ends are provided with rubber tile 12.Bearing 6 is thrust bearing, has two.
Described skate 7 comprises substrate 13 and two blocks of side plates 14 that are connected on the substrate 13, and wherein substrate 13 is a rectangular slab, and described rubber tile 12 is connected on this substrate 13, has pin-and-hole 15 on the side plate 14.
The utility model includes but not limited to above-mentioned embodiment, and any product that meets the description of these claims all falls within the utility model protection domain.
Claims (4)
1. coal mine explosion-proof door quick-locking device, it is characterized in that: comprise screw mandrel, handwheel, base and support, screw mandrel one end connecting well holder connection device wherein, the other end is provided with screw thread, and the cover screw is arranged, this screw top is connected with handwheel by key, the bottom is installed on the base by bearing, base through screws or bolt are connected with support, and the support below is provided with a plurality of skates.
2. coal mine explosion-proof door quick-locking device as claimed in claim 1, it is characterized in that: described support comprises flange, support base ring and Duo Gen bracket side connecting rod, bracket side connecting rod upper end is welded on the flange, the other end has through hole, described skate is hinged on this through hole by bearing pin, and the support base ring is fixed on the bracket side connecting rod of through hole top.
3. coal mine explosion-proof door quick-locking device as claimed in claim 2, it is characterized in that: described skate lower end is provided with rubber tile.
4. such as the arbitrary described coal mine explosion-proof door quick-locking device of claim 1-3, it is characterized in that: described bearing is thrust bearing, has two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220444640.8U CN202788345U (en) | 2012-09-03 | 2012-09-03 | Rapid locking device for coal mine explosion-proof door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220444640.8U CN202788345U (en) | 2012-09-03 | 2012-09-03 | Rapid locking device for coal mine explosion-proof door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202788345U true CN202788345U (en) | 2013-03-13 |
Family
ID=47815622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220444640.8U Expired - Lifetime CN202788345U (en) | 2012-09-03 | 2012-09-03 | Rapid locking device for coal mine explosion-proof door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202788345U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153465A (en) * | 2016-07-15 | 2016-11-23 | 徐晟伟 | A kind of Architecture Outer Curtain Wall load test device |
-
2012
- 2012-09-03 CN CN201220444640.8U patent/CN202788345U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153465A (en) * | 2016-07-15 | 2016-11-23 | 徐晟伟 | A kind of Architecture Outer Curtain Wall load test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |