CN202832614U

CN202832614U - Automatic locking device of mine air door

Info

Publication number: CN202832614U
Application number: CN 201220406168
Authority: CN
Inventors: 董光爱; 董思宽
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-16
Filing date: 2012-08-16
Publication date: 2013-03-27
Anticipated expiration: 2022-08-16

Abstract

An automatic locking device of a mine air door belongs to locking devices. The automatic locking device of mine air door comprises a hole slotting base, a pin tongue, a positioning groove, a positioning screw, a pin library, a pin shaft, a reset spring, a rear plugging, a shaft broaching and an installation base. The rear end of the pin library is connected with the rear plugging and a hole is arranged at the center of the rear plugging. The rear end of the pin tongue is connected with the pin shaft. The pin shaft is in sleeve connection with the reset spring and is positioned inside the pin library. The rear end of the pin shaft penetrates through the hole of the rear plugging. The shaft broaching is arranged at the rear portion of the pin shaft. The pin tongue is provided with the positioning groove. The positioning screw is arranged at the front end of the pin library. The positioning screw is arranged at the position of the positioning groove. The hole slotting base is positioned at one end of the pin tongue. The automatic locking device of a mine air door has the advantages of simple structure and the two air doors can be interlocked and when one air door is open, the other is sure to be locked; thereby the interlocking and self-closing device is easy to use.

Description

The Air Throttle in Mine Pit self-locking catch

Technical field

The utility model relates to a kind of air door fastener, particularly a kind of Air Throttle in Mine Pit self-locking catch.

Background technology

At present, good air ambient and safety in production are arranged in the mine for the colliery, there are large-scale ventilation equipment to blow by force to the down-hole at coal mine well port, the wind that send has been full of whole mine, in order to reduce artificial air-supply loss, in the tunnel under the coal mine, air door is installed, for fear of the air-supply loss, make Air escape branch and cause potential safety hazard, the every place of described air door to be two roads, the passing rules at two sects can only be one gate open row opening wherein, another sect is necessary for blocking, behind the first air door, wait this air door to close after, just can open another road air door.

The utility model content

The purpose of this utility model is that a kind of Air Throttle in Mine Pit self-locking catch will be provided, and solves when open at a sect, and another sect is automatically locked, wait this air door to close after, just can open another road air door.

The purpose of this utility model is achieved in that this dead lock comprises: jack base, latch tongue, locating slot, set screw, latch storehouse, bolt axle, back-moving spring, rear stifled, axle pulling eye and mount pad; Stifled after the rear end in latch storehouse is connected with, rear stifled center is porose; Rear end at the latch tongue is connected with bolt axle, is socketed with back-moving spring at bolt axle, and bolt axle is positioned at the latch storehouse, and the rear end passes from rear stifled hole, at the afterbody of bolt axle the axle pulling eye is arranged; At the latch tongue locating slot is arranged, the front end in the latch storehouse has set screw, and set screw is positioned at the position of locating slot; Jack base is positioned at an end of latch tongue.

Beneficial effect: owing to having adopted such scheme, dead lock is made of back-moving spring, latch tongue, latch storehouse and jack base, respectively fill a cover at two road air doors, the logical wire rope interlocking of two cover dead locks connects, when the latch tongue is subject to external force, automatically being retracted into latch storehouse Zhong Men is opened, under the effect of back-moving spring, another road air door is then by locked, solved when open at a sect, has just opened simultaneously at another sect, when a people passes through air door, the problem that can't again two sects be shut has reached the purpose of this utility model.

Advantage: this dead lock is simple in structure, can automatically realize interlocking between two road air doors, and when one air door opened, another road wind was inevitable locked, easy to use.

Description of drawings

Fig. 1 is sectional structure chart of the present utility model.

Fig. 2 is the plan structure figure of Fig. 1.

Among the figure, 1, jack base; 2, latch tongue; 3, locating slot; 4, set screw; 5, latch storehouse; 6, bolt axle; 7, back-moving spring; 8, rear stifled; 9, axle pulling eye; 10, mount pad.

The specific embodiment

Embodiment 1: this dead lock comprises: jack base 1, latch tongue 2, locating slot 3, set screw 4, latch storehouse 5, bolt axle 6, back-moving spring 7, rear stifled 8, axle pulling eye 9 and mount pad 10; Block up 8 after the rear end in latch storehouse 5 is connected with, rear stifled 8 centers are porose; Be connected with bolt axle 6 in the rear end of latch tongue 2, be socketed with back-moving spring 7 at bolt axle 6, bolt axle 6 is positioned at latch storehouse 5, and the rear end passes from rear stifled 8 hole, at the afterbody of bolt axle 6 axle pulling eye 9 is arranged; At latch tongue 2 locating slot 3 is arranged, the front end in latch storehouse 5 has set screw 4, and set screw 4 is positioned at the position of locating slot 3; Jack base 1 is positioned at an end of latch tongue 2.

When dead lock uses, on two road air doors, described dead lock is installed all, the jack base 1 of dead lock is installed on the doorframe of air door, other is installed on the portal bracing, on the axle pulling eye 9 of two bolt axle afterbodys, adopt wire rope that two dead locks are coupled together, when opening the first air door, because the effect of wire rope and back-moving spring 7, dead lock on the second air door is automatically locked with the second air door, in like manner, and when opening the second air door, the first air door is locked, guaranteed wherein the situation that one air door necessarily shuts.

Claims

1. Air Throttle in Mine Pit self-locking catch, it is characterized in that: this dead lock comprises: jack base, latch tongue, locating slot, set screw, latch storehouse, bolt axle, back-moving spring, rear stifled, axle pulling eye and mount pad; Stifled after the rear end in latch storehouse is connected with, rear stifled center is porose; Rear end at the latch tongue is connected with bolt axle, is socketed with back-moving spring at bolt axle, and bolt axle is positioned at the latch storehouse, and the rear end passes from rear stifled hole, at the afterbody of bolt axle the axle pulling eye is arranged; At the latch tongue locating slot is arranged, the front end in the latch storehouse has set screw, and set screw is positioned at the position of locating slot; Jack base is positioned at an end of latch tongue.