CN2934578Y

CN2934578Y - Oscillating blading type automatic air door

Info

Publication number: CN2934578Y
Application number: CN 200620024985
Authority: CN
Inventors: 刘义生; 于之江; 郑祖根; 张平; 沈浩天
Original assignee: QIANJIAYING MINE BRANCH Co OF KAILUAN (GROUP) CO Ltd
Current assignee: QIANJIAYING MINE BRANCH Co OF KAILUAN (GROUP) CO Ltd
Priority date: 2006-07-18
Filing date: 2006-07-18
Publication date: 2007-08-15
Anticipated expiration: 2016-07-18

Abstract

An automatic pendulum-leaf air door belongs to technical field of a ventilation device and is used to realize the automatic switching of the channel and keep the three-way body of the ventilation system of main fan and vice fan in a balanced and stable state. The technic proposal includes a pendulum leaf, a pendulum leaf frame, a pendulum leaf axis, an import bobbin and an export bobbin. The pendulum leaf axis is arranged on the pendulum leaf frame with interval, the small semicircle edge on top of the rectangle pendulum leaf clip the pendulum leaf axis one to one, the large semicircle edge on the lower part has sliding clipping with the small semicircle edge on top of the adjacent pendulum leaf and the pendulum leaf could automatically open or close with the wind force or self-gravity effect. When the pendulum leaf is applied to the three-way body of the ventilation system of the main fan or the vice fan, the pendulum leaf could respectively and automatically opens or closes along the rotating wind supplying of the main fan or vice fan, easily realizing the automatic switching of the main fan and the vice fan when supplying wind. The utility model simplifies the three-way body to ensure the three-way body in a reliable and stable operation state and can be arranged and used as the automatic switching device of the main wind channel or the vice wind channel of local mine ventilation system.

Description

The swing blade type self closing door

Technical field

The utility model relates to the air channel switching device shifter in the mine local ventilation system, belongs to the ventilation installation technical field.

Background technology

In order to guarantee the timely discharging of continuous air feed of coal mine evacuation working face and pernicious gas, each work plane is provided with main fan and secondary ventilation fan usually.When main fan broke down shutdown, secondary ventilation fan started to the work plane air feed automatically by electric apparatus control apparatus.Main, the outlet in secondary air channel is led to driving face by same guide duct, the control methods of guide duct are manually adjusted in the switching of air feed or employing respectively, or make double-deck special three-way body in the air feed system, the former can only switch regulation and control under the prerequisite of temporary transient interruption air feed, though the latter can realize auto-control, but because the air intake between the double-deck air duct is difficult to control, sometimes return because of the internal layer air duct and be blown into secondary air duct side, three-way body disequilibrium and make three-way body and ventilation system be in unstable working state, double-deck three-way body unavoidably has the mono-layer tube position, this position just becomes the weak link in the labile state, distortion and damage very easily appear, not only have influence on the wind-guiding amount after the deformed damaged, also can change because of maintenance influences the ventilation system operate as normal.How realizing the automatic switchover in major and minor air channel and keep three-way body and ventilation system to be in the duty of balance and stability all the time, is mine ventilation system problem demanding prompt solution in service.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of swing blade type self closing door, with automatic switchover that realizes major and minor air channel and the duty that keeps three-way body and ventilation system balance and stability.

The alleged problem of the utility model realizes with following technical scheme:

A kind of swing blade type self closing door, pendulum leaf 1, pendulum leaf frame 2 are arranged in the formation, pendulum rachis 3, import and

export bobbin

4,5, pendulum rachis 3 is flat on the pendulum leaf frame 2 at interval, the two end supports of each pendulum rachis 3 is on pendulum leaf circle frame, pendulum leaf 1 is a rectangular sheet, last rectangular edges of each pendulum leaf be the smaller part round edge 6 that mates with pendulum rachis 3, one by one with put rachis 3 snappings, following rectangular edges of each pendulum leaf 1 be with more than half round edge 7 of smaller part round edge 6 coupling, slides with the smaller part round edge 6 of adjacent pendulum leaf top and fasten one by one, imports and exports

bobbin

4,5 and lays respectively at and puts on leaf frame 2 front and rear ends.

Above-mentioned swing blade type self closing door is set up on the intrados of the extrados of described more than half round edge 7 or smaller part round edge 6 and is fastened sealant 8.

The utlity model has following characteristics:

1. the pendulum leaf can rotarily open under the wind-force effect automatically, automatic sagging closing under self-gravity action, thereby realize air door automatic unlatching, close;

2. on the three-way body in major and minor blower fan air feed system during supporting use, can open automatically respectively with the air feed in turn of major and minor blower fan, and one when being in opening, another then is in the closed condition of good seal automatically, can realize the automatic switchover of air channel path when major and minor blower fan is blown respectively easily;

3. behind employing the utility model, three-way body in the air feed system need not to adopt complicated two-layer pipe, no internal layer airduct skew, destroy the phenomenon of three-way body and ventilation system balance, simplified the structure of three-way body, can guarantee that three-way body and ventilation system are in the reliable and stable running status all the time, improve the application life of three-way body etc.;

4. simple in structure, easy for installation, main parts size can adopt section bar, board making such as angle steel, stainless steel, is easy to processing and fabricating, is difficult for corrosion in the use, uses Q-percentile life long;

The utility model is suitable to be installed and used as the automatic switching control equipment in self closing door in the mine local ventilation system and major and minor air channel.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is pendulum leaf large and small semicircle limit and pendulum rachis zoomed-in view;

Fig. 3 is the right view of Fig. 1;

Fig. 4 is the allocation plan on the three-way body in the major-minor ventilation system.

The component label is respectively in the accompanying drawing: 1-pendulum leaf 1 ,-pendulum leaf frame, 3-pendulum rachis, 4-import bobbin, 5-outlet bobbin, 6-smaller part round edge, the more than half round edge of 7-, 8-fasten sealant, 9-the utility model, 10.11.12-three ports.

The specific embodiment

Consult Fig. 1,2,3.Pendulum leaf 1 be a rectangular sheet, can adopt corrosion resistant plate to make, and gets rusty in the use preventing.Pendulum leaf frame 2 is the rectangle frame of angle bar welding, and the two end supports of each pendulum rachis 3 is on the vertical angle bar body side frame of pendulum leaf frame 2 both sides.The smaller part round edge 6 of each rectangle pendulum leaf 1 is connected with correspondence position pendulum rachis 3 couplings, the smaller part round edge 6 slip fastenings on leaf 1 are put in 7 of more than half round edges and its below.Under the free state, each is put leaf automatic sagging fastening under self-gravity action and forms a sealing curtain.When the wind that main or secondary ventilation fan bloats was entered by import bobbin 4 by direction shown in the arrow among Fig. 2, each puts leaf 1 was that fulcrum turns clockwise one by one and opens the sealing curtain with pendulum rachis 3 under the wind-force effect.Pendulum rachis 3 can be illustrated hollow steel pipe, can be integral shaft, also can be to disconnect two short back shafts of axle.Import bobbin 4 and outlet bobbin 5 can be circular cylinder or square tube, decide on the pipe shape of application places, have adpting flange on circular, the square nozzle.

Consult Fig. 2.Fasten sealant 8 and can be sandblast body layer or boiling hot glue-line, can be attached on the extrados of more than half round edge 7 or on the intrados of smaller part round edge 6.

Consult Fig. 4.In the diagram Application Example, the utility model 9 quantity are two, and one is placed on three ports 10 that link to each other with the main fan outlet, and another is placed on three ports 11 that link to each other with secondary ventilation fan outlet, the guide duct that three ports 12 are connected to work plane.When main fan was in running status, the utility model 9 in its exit was opened automatically, and the utility model in secondary ventilation fan outlet this moment is then closed automatically; When secondary ventilation fan was in running status, the utility model 9 in its exit was opened automatically, and the utility model in the main fan outlet is then closed automatically.When the utility model 9 in the main fan outlet is opened automatically, what the utility model in the secondary ventilation fan outlet bore is the opposite direction wind-force that the pendulum leaf is closely fastened, automatically cut off secondary ventilation opening passage, otherwise, when the utility model 9 in the secondary ventilation fan outlet is opened automatically, the utility model in the main fan outlet cuts off secondary ventilation opening passage on opposite direction wind-force reliable effect ground, thereby realizes that major and minor blower fan automaticallyes switch in the air channel of air feed respectively.

Claims

1. swing blade type self closing door, it is characterized in that, pendulum leaf [1] is arranged in the formation, pendulum leaf frame [2], pendulum rachis [3], import and export bobbin [4], [5], pendulum rachis [3] is flat on the pendulum leaf frame [2] at interval, the two end supports of each pendulum rachis [3] is on pendulum leaf circle frame, pendulum leaf [1] is a rectangular sheet, the last rectangular edges of each pendulum leaf is the smaller part round edge [6] that mates with pendulum rachis [3], one by one with pendulum rachis [3] snapping, the following rectangular edges of each pendulum leaf [1] is the more than half round edge [7] that mates with smaller part round edge [6], smaller part round edge [6] slip with adjacent pendulum leaf top fastens one by one, imports and exports bobbin [4], [5] lay respectively at the pendulum leaf frame [2] preceding, on the rear end face.

2. swing blade type self closing door according to claim 1 is characterized in that, sets up to fasten sealant [8] on the intrados of the extrados of described more than half round edge [7] or smaller part round edge [6].