CN201148877Y

CN201148877Y - Pneumatic power interlock air door

Info

Publication number: CN201148877Y
Application number: CNU2008200761924U
Authority: CN
Inventors: 张亚东; 张子明; 张子鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-01-25
Filing date: 2008-01-25
Publication date: 2008-11-12
Anticipated expiration: 2018-01-25

Abstract

The utility model relates to a pneumatic linkage air door for a coal mine, which comprises first and second air doors capable of being opened by side rotation and a linkage device, wherein the first and the second air doors are respectively arranged in a direction inclined to the vertical direction by 8 to 10 DEG; the linkage device consists of pneumatic switches and pneumatic locks respectively arranged on the door frames, matched with the door leaves and connected with each other through an air duct; the pneumatic switch is composed of a two-position three-way air valve assembled with a reset spring; and the pneumatic lock is composed of a cylinder assembled with a reset spring. Compared with prior linkage air door, the pneumatic linkage air door has the advantages of simple configuration structure, high safety and reliability, and good opening/closing performance.

Description

The pneumatic interlocking air door

Technical field

The utility model relates to mine ventilation system, is specifically related to a kind of pneumatic interlocking air door.

Background technology

Pedestrian in the mine laneway, driving air door are one of main units of ventilation system, and it is that one group of twice air door links each other, with one section tunnel sealing, prevent that simultaneously two are opened simultaneously, cause the inlet air system short-circuit, cause the mine ventilation accident.At present the interlocking of Air Throttle in Mine Pit adopts wire rope, pulley to be equipped with the combining structure of heavy iron or spring, and its structure configuration relative complex easily breaks down and influences the operate as normal of air door, and the opening resistance of air door is big simultaneously, and functional performance is poor.

Summary of the invention

At the problems referred to above, the utility model provides a kind of pneumatic interlocking air door, and it adopts pneumatic interlocking and utilizes the door leaf self gravitation to close air door, thereby realizes simplified structure, improves the purpose of the safety and reliability of air door.

The technical scheme that realizes above-mentioned purpose is: a kind of pneumatic interlocking air door, and it includes lateral rotation open-type first, second two air doors and the interlock of phase configuration, 8～10 ° of installations of the vertical respectively inclination of its described first, second two air doors; Described interlock is by being arranged at forming with door leaf jettron and pneumatic door lock that match and that link to each other through airduct respectively on the doorframe respectively; Its jettron is made of the two-position three way air valve of assembling back-moving spring, and its pneumatic door lock is made of the cylinder of arrangement reset spring.

The technical solution of the utility model also comprises: described first, second air door is up-narrow and down-wide trapezoidal door; The door leaf of its air door is provided with pressure release window.

The utility model is compared with existing Air Throttle in Mine Pit, has following advantage:

1, by air door is tilted to install, realizes utilizing the door leaf self gravitation to close air door, thereby make the configuration structure of interlocking air door simple.

2, utilize cooperating of jettron and pneumatic door lock, realize the interlocking of air door, the safe and reliable property height of its air door.

3, by pressure release window is set, reduce the door opening resistance, the start-stop performance of air door is good.

Description of drawings

Fig. 1 is this pneumatic interlocking air door scheme of installation in the tunnel;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is this air door structure schematic diagram;

Fig. 4 is this pneumatic interlocking air door interlocking assembling pneumatic diagram.

The specific embodiment

In conjunction with the accompanying drawings the specific embodiment of the present utility model is described.

As accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, this pneumatic interlocking air door includes lateral rotation open-type first air door 1 and oppositely 8～10 ° of installations of vertical respectively inclination in turn in the tunnel of second air door 2, two air doors of phase configuration.On the upper door frame of each air door, be separately installed with the jettron 3 that constitutes of two-position three way air valve, the pneumatic door lock 4 that the cylinder by the arrangement reset spring constitutes be installed on the side side door frame respectively opening of each air door by the assembling back-moving spring.The spool contact of its jettron 3 protrudes doorframe and cooperates with door leaf, and the tapered end caulking groove that is provided with on the piston rod front end tapered end protrusion side door frame of its pneumatic door lock 4 and the door leaf cooperates.Air door 1 and 2 door leaf are provided with pressure release window 5, and its pressure release window is by being opened in the through hole on the door leaf and constituting by the hole capping that hinge is assemblied in the through hole outside.

The utility model is installed by the vertical inclination of air door, can realize that door leaf utilizes the gravity of self to cut out voluntarily in opening.As accompanying drawing, its air door is arranged to up-narrow and down-wide trapezoidal door, can improve the flexibility that door leaf cuts out automatically.

When the utility model was specifically implemented, the fitting face of its doorframe and door leaf was equipped with sealing joint strip, with the closed performance of raising air door, and avoided air door doorframe and door leaf generation rigid shock when closing.

As accompanying drawing, the jettron 3 and the pneumatic door lock 4 of this air door are equipped with protective cover, so that install and maintenance, and play protective effect to jettron and pneumatic door lock.

As accompanying drawing 4, the air intake that this interlocking air door is installed on the jettron 3 on first air door 1 and the second air door 2 respectively is connected in two air outlets of threeway respectively through airduct, and the air intake of threeway is connected with the tunnel airduct.The jettron air outlet of first air door 1 is connected through the air intake of airduct with the pneumatic door lock 4 of second air door 2, and the jettron air outlet of second air door 2 is connected through the air intake of airduct with the pneumatic door lock 4 of first air door 1.

The course of work of this pneumatic interlocking air door is as follows:

Under nature, first, second air door is in closed condition, and the door leaf of its first, second air door roof pressure respectively is installed in the protrusion contact of the jettron on the doorframe separately, makes jettron be in closed condition, the pneumatic door lock that link to each other this moment is died, and each door lock is in non-locking states.

When opening the first air door, the jettron contact of first air door stretches out under spring action, opens its jettron, compressed air is through the pneumatic door lock of airduct to the second air door, piston rod is overhanging, the tapered end of piston rod front end is entered in the tapered end caulking groove of door leaf, with second air door locking.

After people or vehicle enter the tunnel by the first air door, the first air door is under action of gravity, automatically close, the jettron contact of door leaf compressing first air door, cut off its air feed to second air door pneumatic door lock, and finish the exhaust step-down of second air door pneumatic gas cylinder of door lock by the air outlet of first air door pneumatic switch, its cylinder piston bounces back under the effect of spring, drive tapered end by returning in the tapered end caulking groove, remove locking the second air door.

When people or vehicle opened the second air door by the second air door, the jettron of second air door was opened, and the first air door pneumatic door lock ventilation that links to each other with second air door pneumatic switch is in locking states, avoids the second air door to be opened at opening carapax et plastruw testudinis air door.

After people or vehicle were passed through by the second air door, the second air door was closed under action of gravity automatically, and this moment, the jettron of first, second air door was in closed condition together, and the pneumatic door lock of first, second air door is in non-locking states together simultaneously, and the interlocking air door recovers the nature closed condition.

Claims

1, a kind of pneumatic interlocking air door includes lateral rotation open-type first, second two air doors (1), (2) and the interlock of phase configuration, it is characterized in that: vertical respectively 8～10 ° of installations of tilting in described first, second two air doors (1), (2); Described interlock is by being arranged at forming with door leaf jettron (3) and pneumatic door lock (4) that match and that link to each other through airduct respectively on the doorframe respectively; Its jettron (3) is made of the two-position three way air valve of assembling back-moving spring, and its pneumatic door lock (4) is made of the cylinder of arrangement reset spring.

2, pneumatic interlocking air door according to claim 1 is characterized in that: described air door (1), (2) are up-narrow and down-wide trapezoidal door.

3, pneumatic interlocking air door according to claim 1 is characterized in that: the door leaf of air door (1) and (2) is provided with pressure release window (5).