CN201241723Y - Air door blocking device - Google Patents

Abstract

The utility model relates to a coal mine air door controller, in particular to an air door locking device, for resolving the problems of the prior art such as low reliability and operability, which comprises a frame and a rotary V-shaped locker under the frame, wherein the tops of two arms of the V-shaped locker are in hook shapes, two sides of the lower end of the V-shaped locker are provided with press handles, two sides of the V-shaped locker are respectively provided with a guide rail provided with a weighting block, each weighting block is provided with a movable pulley, a fixed pulley is arranged above the movable pulleys on the frame, the frame is fixed with two draw lines for respectively drawing a first air door and a second air door, and the two draws lines both bypass the movable pulleys and the fixed pulley. The utility model has simple structure and benefit design. When there is one air door open, and the another air door can not be opened, thereby preventing two air doors from being opened to pass air flow.

Description

The air door blocking device

Technical field

The utility model relates to the control device of a kind of colliery with air door, is specially a kind of air door blocking device.

Background technology

In the tunnel under the coal mine, the effect of air door is to regulate air intake flow in the tunnel, dilution pernicious gas, pernicious gas must not be transfinited, the assurance downhole safety is produced, simultaneously again can guarantor's car current and do not make mine car damage air door, air door can not be less than four roads (wherein twice are explosion proof door) at least.The twice air door can not be opened simultaneously, otherwise can cause distinguished and admirable short circuit, the accident that causes gas density to exceed standard even blast.The damper control that uses in present most of mine is simple machine control unit, for example on two sects, connect backguy by pulley, perhaps utilize the automatically controlled air door that makes to reach the effect that can not open and close simultaneously, but all there is a kind of defective that is difficult to overcome in above-mentioned in actual use all mechanisms, when promptly open at a sect therein, another sect can not obtain locking immediately, also there is the possibility of opening simultaneously in the twice air door, and the explosion-proof problem of electric control gear also is difficult to solve, and so also is easy to take place security incident.

Summary of the invention

The utility model is for the problem that solves the air door blocking device reliability that exists in the prior art and poor operability and provide a kind of unfailing performance high air door blocking device.

The utility model is realized by following technical scheme, a kind of air door blocking device, comprise framework, the framework below is provided with rotating V-shape dead lock, two arm tops of V-shape dead lock are hook-shaped, the both sides, lower end of V-shape dead lock are provided with pressure handle, be respectively equipped with guided way in V-shape dead lock both sides, be respectively equipped with balancing weight on the guided way, balancing weight is provided with movable pulley, be provided with fixed pulley above the framework movable pulley, be fixed with the backguy of drawing the first road air door respectively and the backguy of the second road air door on framework, movable pulley and fixed pulley are all walked around in backguy.

The V-shape dead lock plays a key role in this device, the V-shape dead lock can be vacillated now to the left, now to the right around pin joint, two arm tops of V-shape dead lock are hook-shaped, its objective is balancing weight is hooked, both sides, V-shape dead lock lower end are provided with pressure handle, when balancing weight falls behind down pressure handle is compressed, after wherein a backguy is spurred by preceding one air door, the pressure handle of V-shape dead lock be not stressed, the V-shape dead lock be subjected at once offside arm strength and swing, the hook on arm top hooks another balancing weight, and another balancing weight is inactive, and the backguy that connects on it promptly also can't be moved.Another pectinid door is promptly by firmly fixing and not unlatching; Anyway, when another pectinid door need be opened, last pectinid door must be closed, and made balancing weight fall to pushing down pressure handle, and the outer pendulum of V-shape dead lock makes hook break away from corresponding balancing weight then, because backguy can just can be opened by movable this pectinid door.

Compared with prior art, the utility model is simple in structure, design ingenious, use the cooperation of V-shape dead lock and balancing weight just to can be implemented in perfect condition in the underground air door control, as long as an air door is in opening, the absolutely not unlatching of another air door has been stopped two pectinid doors fully by opening distinguished and admirable phenomenon.

Description of drawings

Fig. 1 is a structural representation of the present utility model

Fig. 2 is the structural representation of V-shape dead lock

Fig. 3 is an operating principle structural representation in the use of the present utility model

Among the figure: 1-framework, 2-fixed pulley, 3-backguy, 4-guided way, 5-movable pulley, 6-V font dead lock, 7-balancing weight, 8-guided way, 9-balancing weight, 10-movable pulley, 11-backguy, 12-fixed pulley, 13-hook, 14-pressure handle, 15-air door, 16-air door

The specific embodiment

As Fig. 1,2 illustrate, a kind of air door blocking device, comprise framework 1, framework 1 below is provided with rotating V-shape dead lock 6, two arm tops of V-shape dead lock 6 are hook 13, the both sides, lower end of V-shape dead lock 6 are provided with pressure handle 14, be respectively equipped with guided way 4 in V-shape dead lock 6 both sides, 8, guided way 4, be respectively equipped with balancing weight 9 on 8,7, balancing weight 9,7 are provided with movable pulley 10,5, movable pulley 10 at framework, 5 tops be provided with fixed pulley 12,2, on framework 1, be fixed with the backguy 11 of drawing the first road air door respectively and the backguy 3 of the second road air door, backguy 11,3 all walk around movable pulley and fixed pulley.

As schematically shown in Figure 3, after wherein a backguy 3 is spurred by preceding one air door 16, the pressure handle of V-shape dead lock be not stressed, the V-shape dead lock be subjected at once offside arm strength and swing, the hook on arm top hooks another balancing weight 9, another balancing weight 9 is inactive, and the backguy 11 that connects on it promptly also can't be moved, and another pectinid door 15 is promptly by firmly fixing and not unlatching; Personnel pass the first road air door 16, then air door 16 is closed, make balancing weight 7 fall to pushing down pressure handle, the outer pendulum of V-shape dead lock makes hook break away from corresponding balancing weight 9 then, this balancing weight 9 can easily be opened as long as push away another pectinid door 15 this moment with 11 activities of the backguy on it.

Claims (1)

1, a kind of air door blocking device, it is characterized in that: comprise framework (1), framework (1) below is provided with rotating V-shape dead lock (6), two arm tops of V-shape dead lock (6) are hook (13), the both sides, lower end of V-shape dead lock (6) are provided with pressure handle (14), be respectively equipped with guided way (4 in V-shape dead lock (6) both sides, 8), guided way (4,8) be respectively equipped with balancing weight (9 on, 7), balancing weight (9,7) be provided with movable pulley (10,5), movable pulley (10 at framework, 5) top is provided with fixed pulley (12,2), on framework (1), be fixed with the backguy (11) of drawing the first road air door respectively and the backguy (3) of the second road air door, backguy (11,3) all walk around movable pulley and fixed pulley.

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