CN2707967Y - Linkage drift air door - Google Patents
Linkage drift air door Download PDFInfo
- Publication number
- CN2707967Y CN2707967Y CN 200420072634 CN200420072634U CN2707967Y CN 2707967 Y CN2707967 Y CN 2707967Y CN 200420072634 CN200420072634 CN 200420072634 CN 200420072634 U CN200420072634 U CN 200420072634U CN 2707967 Y CN2707967 Y CN 2707967Y
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- Prior art keywords
- door leaf
- door
- arm
- folding arm
- apart
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Abstract
The utility model relates to a linkage drift air door, comprising a door frame. Both ends of the door frame are rotatablely connected with a first door leaf and a second door leaf respectively. The intermediate section of the door frame is rotatablely connected with an intermediate spiral arm, and a first folding arm is rotatablely connected between the end of the intermediate spiral arm near the door leaf and the first door leaf, and a second folding arm is rotatablely connected between one end of the intermediate spiral arm near the second door leaf and the second door leaf. The intermediate spiral arm, the first folding arm and the second folding arm are in the same plane. The length b of the first folding arm and one section length c of the intermediate spiral arm near the first door leaf are respectively smaller than the distance a between two rotation shafts of the first door leaf and the distance d of the door frame corresponding to the first door leaf, and the length b'of the second folding arm and one section length c'of the intermediate spiral arm near the second door leaf are respectively smaller than the distance a'between two rotation shafts of the second door leaf and the distance d'of the door frame corresponding to the second door leaf. Thereby, the open and close of the linkage drift air door saves labor and saves time, and the utility model reduces the short circuit time of the air flow in mine.
Description
Technical field
The utility model relates to a kind of interlock tunnel air door, relates in particular to a kind of pull bar interlock air door that is applied between mine connection tunnel, lane.
Background technology
Usually, concentration for pernicious gases such as the coal dust that dilutes the work plane in the mine and gas, the ventilation that keeps work plane, therefore mine comprises air intake lane and return airway, air enters mine from the air intake lane and passes through work plane then, discharge from return airway subsequently, thus this process circulation carry out pernicious gases such as the coal dust of work plane and gas are controlled at below the finite concentration, thereby guarantee construction safety.If be interconnected in middle somewhere between air intake lane and the return airway, then enter the distinguished and admirable of air intake lane and directly enter return airway from this connection, and without work plane, this situation is distinguished and admirable short circuit, distinguished and admirable short circuit meeting causes that the concentration of pernicious gases such as work plane coal dust and gas raises, and causes that easily construction is dangerous.
In addition, in order to carry out necessary transport, be provided with the connection lane between air intake lane and return airway, connection is provided with air door in the lane, and this air door all is in closed state at ordinary times, can open just have only when needed.For example, when the air door, open air door rapidly at vehicle, vehicle through after, close this air door at once, the switching of air door range request carry out fast, thereby shorten time of distinguished and admirable short circuit, and and reduce the influence of distinguished and admirable short circuit to safety in the mine.
Yet, in real work, find because the windage of connection in the lane is very big, to the switching process of an existing fan formula air door require great effort very much, time-consuming, therefore lasting time of distinguished and admirable short circuit also longer relatively, bigger to the influence of down-hole construction safety.
Therefore, be necessary to design a kind of air door, to overcome above-mentioned defective.
The utility model content
The interlock tunnel air door that provides a kind of opening and closing operations simple, time saving and energy saving is provided the purpose of this utility model.
In order to realize the foregoing invention purpose, this utility model is design like this: this interlock tunnel air door comprises doorframe, wherein the two ends of this doorframe are connected with first door leaf and second door leaf respectively rotationally, spiral arm in the middle of the doorframe middle part is connected with rotationally, be connected with first folding arm rotationally between one end of close first door leaf of this centre spiral arm and first door leaf, and be connected with second folding arm rotationally between an end of close second door leaf of middle spiral arm and second door leaf, spiral arm wherein, first folding arm and second folding arm are positioned within the common plane, and the length b of first folding arm and middle spiral arm near a segment length c of first door leaf respectively less than between two rotating shafts of first door leaf apart from a and doorframe corresponding to the part of first door leaf apart from d, and a segment length c ' of the length b ' of second folding arm and close second door leaf of middle spiral arm respectively less than between two rotating shafts of second door leaf apart from a ' and doorframe corresponding to the part of second door leaf apart from d '.
By adopting above-mentioned design, this interlock tunnel air door opens and closes simple, time saving and energy saving, has reduced the time of mine apoplexy flow short-circuit, thereby has guaranteed the construction safety in the mine.
Description of drawings
Fig. 1 is the schematic diagram of the vertical view of interlock of the present utility model tunnel door opening process.
Fig. 2 is the front view of the single door leaf of interlock of the present utility model tunnel air door.
Fig. 3 is first folding arm of interlock of the present utility model tunnel air door, middle spiral arm and the interconnective schematic diagram of second folding arm.
The specific embodiment
See also Fig. 1 to Fig. 3, shown interlock tunnel air door 1 is to be installed within the connection lane that connects air intake lane and return airway, this interlock tunnel air door 1 comprises the doorframe 2 that is retained in the perisporium of connection lane, two ends by this doorframe 2 are connected with first door leaf 3 and second door leaf 6 respectively rotationally, spiral arm 5 in the middle of being connected with rotationally at doorframe 2 middle parts.
Be connected with first folding arm 4 rotationally between one end of these centre spiral arm 5 close first door leafs 3 and first door leaf 3, and be connected with second folding arm 7 rotationally between an end of middle spiral arm 5 close second door leafs 6 and second door leaf 6, spiral arm 5 wherein, first folding arm 4 and second folding arm 7 are positioned within the common plane, and the length b of first folding arm 4 and middle spiral arm 5 near a segment length c of first door leafs 3 respectively less than between 3 liang of rotating shafts of first door leaf apart from a and doorframe 2 corresponding to the part of first door leaf 3 apart from d, and a segment length c ' of the length b ' of second folding arm 7 and middle spiral arm 5 close second door leafs 6 respectively less than between 6 liang of rotating shafts of second door leaf apart from a ' and doorframe 2 corresponding to the part of second door leaf 6 apart from d '.
Operate as normal for the tunnel air door 1 that guarantees to link then requires this air door 1 to satisfy following structural relation, and promptly a, b equal d, c respectively, and a ', b ' equal d ', c ' respectively and equate that in this case, first door leaf 3 and second door leaf 6 can be opened.
And satisfying b or c equals
And b ' or c ' equal
Condition under, first door leaf 3 and second door leaf 6 can complete openings.
In addition, interlock tunnel air door 1 first door leaf 3 and second door leaf 6 also can be taked symmetric design, and promptly a, b, c, d equal a ', b ', c ', d ' respectively.
In order to prevent that first door leaf 3 and second door leaf 6 are not closed completely because of being subjected to wind action after closing, need be provided with the spring hinge lock at a door leaf 3 or second door leaf, 6 one sides, this spring hinge lock can satisfy interlock tunnel air door 1 to be subjected to the effect of spring force and to realize locking after closing.
Middle spiral arm 5 is made by channel-section steel, and middle spiral arm 5 is provided with bolt 51, and this spiral shell 51 passes this centre spiral arm 5, and the one end connects doorframe 2, and an other end connects a bearing 50, and middle spiral arm 5 serve as spool to rotate on bearing 50 with this bolt 51.First folding arm 4 and second folding arm 7 all adopt the steel pipe of certain diameter to make, and are equipped with bearing 52,53 at two folding arms 4,7 and middle spiral arm 5 junctions.
This first door leaf 3 and second door leaf 6 can adopt structure as shown in Figure 2, and its inside is the skeleton 30,60 of being made frame type by timber, and these skeletons 30,60 comprise several independently sub-boxes.Bag is provided with metal sheet roof covering 32,62 on the surface of this skeleton 30,60.For metal sheet roof covering 32,62 effectively being immobilizated in skeleton 30,60 surfaces, connect some metal door bands 34,64 that are arranged in parallel on the surface of metal sheet roof covering 32,62, these metal door bands 34,64 are connected by rivet 36,66 with metal sheet roof covering 32,62.
When opening first door leaf 3 of this interlock tunnel air door 1,3 meetings of first door leaf drive first folding arm 4, spiral arm 5 in the middle of first folding arm 4 drives subsequently, and 7 swings of then middle spiral arm 5 tractions second folding arm, this second folding arm, 7 pullings, second door leaf 6 is opened at last; Otherwise closing also of first door leaf 3 can drive closing of second door leaf 6, and like this, first door leaf 3 and second door leaf 6 can be realized opening simultaneously or closing.
By adopting above-mentioned interlock tunnel air door 1, it is not only laborsaving but also save time to open, close air door in the connection lane, therefore when vehicle passes through air door, has shortened the time that mine is in distinguished and admirable short circuit, the dust or the pernicious gas that have guaranteed fully-mechanized mining working are in time diluted, thereby have guaranteed construction safety.
Claims (7)
1. interlock tunnel air door, it comprises doorframe, it is characterized in that: the two ends by this doorframe are connected with first door leaf and second door leaf respectively rotationally, spiral arm in the middle of the doorframe middle part is connected with rotationally, be connected with first folding arm rotationally between one end of close first door leaf of this centre spiral arm and first door leaf, and be connected with second folding arm rotationally between an end of close second door leaf of middle spiral arm and second door leaf, spiral arm wherein, first folding arm and second folding arm are positioned within the common plane, and the length b of first folding arm and middle spiral arm near a segment length c of first door leaf respectively less than between two rotating shafts of first door leaf apart from a and doorframe corresponding to the part of first door leaf apart from d, and a segment length c ' of the length b ' of second folding arm and close second door leaf of middle spiral arm respectively less than between two rotating shafts of second door leaf apart from a ' and doorframe corresponding to the part of second door leaf apart from d '.
2. interlock as claimed in claim 1 tunnel air door, it is characterized in that: wherein the length b apart from a, first folding arm between two rotating shafts of first door leaf equals the segment length c apart from d, middle spiral arm close first door leaf of doorframe corresponding to the part of first door leaf respectively, and the length b ' apart from a ', second folding arm between two rotating shafts of second door leaf equals the segment length c ' apart from d ', middle spiral arm close second door leaf of doorframe corresponding to the part of second door leaf respectively.
3. interlock as claimed in claim 2 tunnel air door is characterized in that: wherein the length b of first folding arm equal between two rotating shafts of first door leaf apart from a's
Doubly, and the length b ' of second folding arm equal between two rotating shafts of second door leaf apart from a's '
Doubly.
4. interlock as claimed in claim 3 tunnel air door is characterized in that: wherein the length b between two rotating shafts of first door leaf, middle spiral arm apart from a, first folding arm near a segment length c of first door leaf, doorframe corresponding to the part of first door leaf apart from d equal respectively the length b ' between two rotating shafts of second door leaf, middle spiral arm apart from a ', second folding arm near a segment length c ' of second door leaf, doorframe corresponding to the part of second door leaf apart from d '.
5. interlock as claimed in claim 4 tunnel air door is characterized in that: first door leaf or second door leaf, one side are provided with the spring hinge lock.
6. interlock as claimed in claim 5 tunnel air door is characterized in that: made by channel-section steel at middle spiral arm, and first folding arm and second folding arm are made by steel pipe.
7. interlock as claimed in claim 6 tunnel air door is characterized in that: first door leaf and second door leaf comprise that skeleton, bag are located at the metal sheet roof covering on skeleton surface and the door of fixed skeleton and metal sheet roof covering is with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420072634 CN2707967Y (en) | 2004-06-25 | 2004-06-25 | Linkage drift air door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420072634 CN2707967Y (en) | 2004-06-25 | 2004-06-25 | Linkage drift air door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2707967Y true CN2707967Y (en) | 2005-07-06 |
Family
ID=34852642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420072634 Expired - Lifetime CN2707967Y (en) | 2004-06-25 | 2004-06-25 | Linkage drift air door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2707967Y (en) |
-
2004
- 2004-06-25 CN CN 200420072634 patent/CN2707967Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140625 Granted publication date: 20050706 |