CN103216254B - Air door switch device - Google Patents
Air door switch device Download PDFInfo
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- CN103216254B CN103216254B CN201210019125.XA CN201210019125A CN103216254B CN 103216254 B CN103216254 B CN 103216254B CN 201210019125 A CN201210019125 A CN 201210019125A CN 103216254 B CN103216254 B CN 103216254B
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Abstract
The invention discloses a kind of air door switch device, comprise: first connecting rod, second connecting rod, cylinder and gas circuit control unit, wherein, one end of first connecting rod is hinged with the door leaf be arranged in underworkings, the other end of first connecting rod and one end of second connecting rod hinged; The other end of second connecting rod and the expansion link of cylinder hinged, and second connecting rod is provided with fixed axis, when the expansion link of cylinder elongates or shortens under the control of gas circuit control unit, second connecting rod rotates around fixed axis under the drive of Telescopic-cylinder bar, and drive first connecting rod to move, to open or to close door leaf.Air door switch device of the present invention can realize opening and closing automatically of air door door leaf, the technical problem that the air door therefore solving prior art cannot open and close quickly and easily.
Description
Technical field
The present invention relates to mine ventilation technology, particularly relate to a kind of air door switch device.
Background technology
In coal mining, the safety in colliery is extremely important, and wherein, mine ventilation system guarantees mine safety whether key, and the air door in mine ventilation system is the key keeping mine ventilation system stable operation.Air door mainly passes through for personnel in the pit, material and arranges, and while passing through in guarantee personnel, material down-hole, also for the adjustment that down-hole is distinguished and admirable, to avoid occurring Air escape branch, thus guarantees the reliability service of whole ventilation system.Can air door open and close quickly and easily, will directly have influence on the production safety of mine.
At present, the opening and closing mode of air door is mainly by manually opening in the mode such as manually to draw, push away or close, and due in mine laneway, the forward blast of air door is larger, when personnel pass through, common people want manually opened air door to be the thing wasted time and energy very much.If generation down-hole accident, when miner needs to carry out emergency escape, the consequence cannot opening air door with manpower quick, easy, safely will cause catastrophic accident.Therefore, how opening and closing air door quickly and easily, is the technical problem always perplexing downhole safety production.
In addition, existing underground air door is normally cooperatively interacted by twice door leaf and uses, and when one door leaf is opened, another road door leaf is in closed condition, can not open at a moment twice door leaf, to prevent Air escape branch phenomenon simultaneously.Twice door leaf in existing air door is generally the mutual lock-in control being realized twice door leaf by the wire rope be connected between two door leafs, when one door leaf is opened completely, wire rope can be strained, make another road door leaf to be tightened up under Wire pulling active force and to be in closed condition, thus make twice door leaf can not be in open mode simultaneously.
But, during existing air door work, because the twice door leaf of air door realizes mutual locking by means of only pulling of steel cable, when one door leaf is in semi-open state, then also may there is semi-open phenomenon in another road door leaf, now just there will be twice door leaf and be in semi-open state simultaneously, thus cause forming Air escape branch between twice door leaf or occurring portable blower circulated air phenomenon, thus reliably effectively cannot ensure the mutual locking of twice door leaf, bring potential safety hazard to the normal operation of down-hole; And, total length due to locking wire rope must be greater than length when twice door leaf cuts out, the normal unlatching of guarantee air door, therefore, after the twice door leaf opening and closing of existing air door, the locking wire rope always having one door leaf can not automatically restore to tension, the wire rope of additional length can stretch the inboard being attached to wherein one door leaf, when opening this road door leaf, unnecessary locking wire rope easily scrapes the head of pedestrian and other positions of health, thus brings inconvenience and potential safety hazard to pedestrian.
Summary of the invention
The invention provides a kind of air door switch device, solving underground air door of the prior art cannot open and close quickly and easily, and the twice door leaf of air door cannot the technical problem of reliable mutually locking effectively.
A kind of air door switch device provided by the present invention, comprise: first connecting rod, second connecting rod, cylinder and gas circuit control unit, wherein, one end of described first connecting rod is hinged with the door leaf be arranged in underworkings, the other end of described first connecting rod and one end of described second connecting rod hinged; The other end of described second connecting rod and the expansion link of described cylinder hinged, and described second connecting rod is provided with fixed axis, when the expansion link of described cylinder elongates or shortens under the control of described gas circuit control unit, described second connecting rod rotates around described fixed axis under the drive of described expansion link, and drive described first connecting rod to move, to open or to close described door leaf.
A kind of air door switch device that the invention described above provides, by linkage, cylinder and gas circuit control unit, instead of artificial mode of opening air door in prior art, achieve opening and closing automatically of air door door leaf, avoid the generation that may cause air door casualty accident because of high negative pressure door opening difficulty, thus the technical problem that the air door solving prior art cannot open and close fast, easily and safely.
In air door switch device as above, one end of described first connecting rod is hinged preferably by the side of U-shaped link slot and described door leaf, by regulating the position of the tie point of described first connecting rod and described U-shaped link slot, in the scope of 0 ° to 95 °, preferably can adjust the opening angle of described door leaf neatly.
In air door switch device as above, described cylinder is preferably with underground pressure air source of the gas as power source, the input of described gas circuit control unit is connected with described underground pressure air source of the gas, the output of described gas circuit control unit and described cylinders, elongate or shorten in order to the expansion link controlling described cylinder.The air door switch device provided due to the invention described above can with underground pressure air source of the gas for power source, therefore has the advantages such as the simple and manufacturing cost of energy-conserving and environment-protective, structure is lower.
In addition, present invention also offers a kind of air door switch device, comprise: first connecting rod, second connecting rod, third connecting rod, double leval jib, the first cylinder, the second cylinder, the first gas circuit control unit and the second gas circuit control unit, wherein, one end of described first connecting rod is hinged with the first door leaf be arranged in underworkings, the other end of described first connecting rod and one end of described second connecting rod hinged; The other end of described second connecting rod and the expansion link of described first cylinder hinged, and described second connecting rod is provided with fixed axis, when the expansion link of described first cylinder elongates or shortens under the control of described first gas circuit control unit, described second connecting rod rotates around described fixed axis under the drive of described expansion link, and drive described first connecting rod to move, to open or to close described first door leaf; One end of described third connecting rod with to be arranged in underworkings and hinged with described first door leaf the second door leaf separately, the other end of described third connecting rod and one end of described double leval jib hinged; The other end of described double leval jib and the expansion link of described second cylinder hinged, and described double leval jib is provided with fixed axis, when the expansion link of described second cylinder elongates or shortens under the control of described second gas circuit control unit, described double leval jib rotates around described fixed axis under the drive of described expansion link, and drive described third connecting rod to move, to open or to close described second door leaf.
A kind of air door switch device that the invention described above provides, owing to passing through linkage, cylinder and gas circuit control unit, instead of artificial mode of opening air door in prior art, achieve opening and closing automatically of air door door leaf, therefore the generation that may cause air door casualty accident because of high negative pressure door opening difficulty is avoided, thus the technical problem that the air door solving prior art cannot open and close fast, easily and safely.
In air door switch device as above, one end of described first connecting rod is hinged preferably by the side of U-shaped link slot and described first door leaf, one end of described third connecting rod is hinged preferably by the side of U-shaped link slot and described second door leaf, by regulating the position of the tie point of described first connecting rod or third connecting rod and described U-shaped link slot, in the scope of 0 ° to 95 °, preferably can adjust the opening angle of described first door leaf or the second door leaf neatly.
In air door switch device as above, described first cylinder and the second cylinder are preferably with underground pressure air source of the gas as power source, the input of described first gas circuit control unit and the second gas circuit control unit is connected with described underground pressure air source of the gas, the output of described first gas circuit control unit and the second gas circuit control unit respectively with described first cylinder and the second cylinders, elongate or shorten in order to the expansion link controlling described first cylinder and the second cylinder.Due in the air door switch device that the invention described above provides, to be preferably with underground pressure air source of the gas as power source, therefore there is the advantages such as the simple and manufacturing cost of energy-conserving and environment-protective, structure is lower.
In air door switch device as above, the first pneumatic two-way valve is preferably provided with between the input of described second gas circuit control unit and described underground pressure air source of the gas, described first pneumatic two-way valve and described first cylinders, in order to when the first door leaf described in described first air cylinder driven opens or cuts out, cut off or connect the underground pressure air source of the gas of described second gas circuit control unit; The second pneumatic two-way valve is preferably provided with between the input of described first gas circuit control unit and described underground pressure air source of the gas, described second pneumatic two-way valve and described second cylinders, in order to when the second door leaf described in described second air cylinder driven opens or cuts out, cut off or connect the underground pressure air source of the gas of described first gas circuit control unit.
In air door switch device as above, described first gas circuit control unit preferably comprises: two three air-flow selector switches, lay respectively at the inner side and outer side of described first door leaf, and each three air-flow selector switches comprise out position, zero-bit and off-position three gears, the inlet end of described two three air-flow selector switches is in parallel with described underground pressure air source of the gas, described two three air-flow selector switches open position parallel connection after be connected with the contraction air inlet port of described first cylinder, be connected with the stretching, extension air inlet port of described first cylinder after the off-position parallel connection of described two three air-flow selector switches, the zero-bit of described two three air-flow selector switches is vacant, described second gas circuit control unit preferably comprises: two three air-flow selector switches, lay respectively at the inner side and outer side of described second door leaf, and each three air-flow selector switches comprise out position, zero-bit and off-position three gears, the inlet end of described two three air-flow selector switches is in parallel with described underground pressure air source of the gas, described two three air-flow selector switches open position parallel connection after be connected with the contraction air inlet port of described second cylinder, be connected with the stretching, extension air inlet port of described second cylinder after the off-position parallel connection of described two three air-flow selector switches, the zero-bit of described two three air-flow selector switches is vacant.
In air door switch device as above, the first loop is preferably provided with between the contraction air inlet port of described second cylinder and the stretching, extension air inlet port of described first cylinder, described first loop is provided with the first Pneumatic check valve, in order to when the contraction inlet charge of described second cylinder, make the stretching, extension inlet charge of described first cylinder, and in order to when the stretching, extension inlet charge of described first cylinder, make the contraction air inlet port not air inlet of described second cylinder; Preferably second servo loop is provided with between the contraction air inlet port of described first cylinder and the stretching, extension air inlet port of described second cylinder, described second servo loop is provided with the second Pneumatic check valve, in order to when the contraction inlet charge of described first cylinder, make the stretching, extension inlet charge of described second cylinder, and in order to when the stretching, extension inlet charge of described second cylinder, make the contraction air inlet port not air inlet of described first cylinder.
Due in the air door switch device that the invention described above provides, preferably be provided with first and second the pneumatic two-way valve for cutting off and connect described underground pressure air source of the gas, and for controlling first and second Pneumatic check valve of air-flow one-way flow, it thoroughly instead of traditional locking wire rope, therefore, can ensure when the first or second door leaf is opened, another road door leaf can cut out automatically, and really can cut off the driving power source of another road door leaf, thus ensure that the mutual blocking function between twice door leaf, stability when improve door opening and close and reliability, the twice door leaf solving air door in prior art cannot the technical problem of reliable mutually locking effectively, effectively prevent the phenomenon generation that twice air door is opened simultaneously, and then avoid occurring down-hole Air escape branch, stop the generation of mine ventilation gas accident, also can not make troubles and potential safety hazard to pedestrian.
Accompanying drawing explanation
Fig. 1 is the air door switch device of the embodiment of the present invention one structural representation when being in closed condition;
Fig. 2 is the air door switch device of the embodiment of the present invention one structural representation when being in opening;
Fig. 3 is mounting arrangement and the gas circuit control schematic diagram of the air door switch device of the embodiment of the present invention one;
Fig. 4 is the structural representation of the air door switch device of the embodiment of the present invention two;
Fig. 5 is the part gas circuit control connection figure of the air door switch device of the embodiment of the present invention two;
Fig. 6 is mounting arrangement and the gas circuit control schematic diagram of the air door switch device of the embodiment of the present invention two.
Detailed description of the invention
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
Embodiment one
Refer to Fig. 1 to Fig. 3.Fig. 1 is the air door switch device of the embodiment of the present invention one structural representation when being in closed condition.Fig. 2 is the air door switch device of the embodiment of the present invention one structural representation when being in opening.Fig. 3 is mounting arrangement and the gas circuit control schematic diagram of the air door switch device of the embodiment of the present invention one.
As shown in Figure 1 to Figure 3, a kind of air door switch device that the embodiment of the present invention one provides, comprise: first connecting rod 3, second connecting rod 4, cylinder 2 and gas circuit control unit, wherein, one end of first connecting rod 3 is hinged with the door leaf 1 be arranged in underworkings, the other end of first connecting rod 3 and one end of second connecting rod 4 hinged; The other end of second connecting rod 4 and the expansion link 20 of cylinder 2 hinged, and second connecting rod 4 is provided with fixed axis 5, when the expansion link 20 of cylinder 2 elongates or shortens under the control of gas circuit control unit, second connecting rod 4 rotates around fixed axis 5 under the drive of expansion link 20, and drive first connecting rod 3 to move, thus open or close door leaf 1.
The air door switch device that above-mentioned the present embodiment provides, by first connecting rod 3, second connecting rod 4, cylinder 2 and gas circuit control unit, instead of artificial mode of opening air door in prior art, achieve opening and closing automatically of air door door leaf, avoid the generation that may cause air door casualty accident because of high negative pressure door opening difficulty, thus the technical problem that the air door solving prior art cannot open and close fast, easily and safely.
On the basis of technique scheme, one end of first connecting rod 3 is hinged with the side of door leaf 1 preferably by U-shaped link slot 6, effect due to U-shaped link slot 6 is to provide Mulit-point Connection, therefore by regulating first connecting rod 3 and the position of the tie point of U-shaped link slot 6, in the scope of 0 ° to 95 °, the opening angle of door leaf 1 can just be adjusted neatly.
On the basis of technique scheme, the base of cylinder 2 is preferably provided with rotating shaft, and when the expansion link of cylinder 2 elongates or shortens, cylinder 2 can around this axis of rotation.
As shown in Figure 3, on the basis of technique scheme, cylinder 2 is preferably with underground pressure air air source A for power source, and the input of gas circuit control unit is connected with underground pressure air air source A, the output of gas circuit control unit is connected with cylinder 2, and the expansion link 20 in order to control cylinder 2 elongates or shortens.
Specifically, gas circuit control unit preferably includes: two three air-flow selector switch K1 and K2, lay respectively at the inner side and outer side of door leaf 1, and each three air-flow selector switches comprise out a Fk, zero-bit F0 and off-position Fg tri-gears, the inlet end of two three air-flow selector switch K1 and K2 is in parallel with underground pressure air air source A, two three air-flow selector switch K1 with K2 open a Fk parallel connection after be connected with the contraction air inlet port of cylinder 2, be connected with the stretching, extension air inlet port of cylinder 2 after the off-position Fg parallel connection of two three air-flow selector switch K1 with K2, the zero-bit F0 of two three air-flow selector switch K1 and K2 is then vacant.When air door opened by needs, the gear of three air-flow selector switch K1 or K2 can be allocated to open a Fk, now underground pressure air air source A is by the contraction air inlet port air feed of supply air line to cylinder 2, to drive the expansion link 20 of cylinder 2 to shorten, and drive second connecting rod 4 to rotate around fixed axis 5, thus drive first connecting rod 3 to move, and opened door leaf 1.When pedestrian is by after air door, the gear of three air-flow selector switch K1 or K2 can be allocated to off-position Fg, now underground pressure air air source A is by by the stretching, extension air inlet port air feed of supply air line to cylinder 2, to drive the expansion link 20 of cylinder 2 to extend, and drive second connecting rod 4 to rotate around fixed axis 5, thus drive first connecting rod 3 to move, and close door leaf 1.After air door is closed completely, also the gear of three air-flow selector switch K1 or K2 can be allocated to zero-bit F0, return original state to make air door switch device.
Due in the air door switch device that above-mentioned the present embodiment provides, to be preferably with underground pressure air source of the gas as power source, therefore there is the advantages such as the simple and manufacturing cost of energy-conserving and environment-protective, structure is lower.Further, this air door switch device can open and close air door fast, easily and safely.
Embodiment two
Refer to Fig. 4 to Fig. 6.Fig. 4 is the structural representation of the air door switch device of the embodiment of the present invention two.Fig. 5 is the part gas circuit control connection figure of the air door switch device of the embodiment of the present invention two.Fig. 6 is mounting arrangement and the gas circuit control schematic diagram of the air door switch device of the embodiment of the present invention two.
As shown in Figures 4 to 6, a kind of air door switch device that the embodiment of the present invention two provides, comprise: first connecting rod 3, second connecting rod 4, third connecting rod 7, double leval jib 8, first cylinder 200, second cylinder 400, first gas circuit control unit and the second gas circuit control unit, wherein, one end of first connecting rod 3 is hinged with the first door leaf 100 be arranged in underworkings, the other end of first connecting rod 3 and one end of second connecting rod 4 hinged; The other end of second connecting rod 4 and the expansion link 201 of the first cylinder 200 hinged, and second connecting rod 4 is provided with fixed axis 5, when the expansion link 201 of the first cylinder 200 elongates or shortens under the control of the first gas circuit control unit, second connecting rod 4 rotates around fixed axis 5 under the drive of expansion link 201, and drive first connecting rod 3 to move, to open or to close the first door leaf 100; One end of third connecting rod 7 with to be arranged in underworkings and hinged with the first door leaf 100 the second door leaf 300 separately, the other end of third connecting rod 7 and one end of double leval jib 8 hinged; The other end of double leval jib 8 and the expansion link 401 of the second cylinder 400 hinged, and double leval jib 8 is provided with fixed axis 5, when the expansion link 401 of the second cylinder 400 elongates or shortens under the control of the second gas circuit control unit, double leval jib 8 rotates around fixed axis 5 under the drive of expansion link 401, and drive third connecting rod 7 to move, to open or to close the second door leaf 300.
The air door switch device that above-mentioned the present embodiment provides, by first connecting rod 3, second connecting rod 4, third connecting rod 7, double leval jib 8, first cylinder 200, second cylinder 400, first gas circuit control unit and the second gas circuit control unit, instead of artificial mode of opening air door in prior art, achieve opening and closing automatically of air door twice door leaf, avoid the generation that may cause air door casualty accident because of high negative pressure door opening difficulty, thus the technical problem that the air door solving prior art cannot open and close fast, easily and safely.
On the basis of technique scheme, one end of first connecting rod 3 is hinged preferably by the side of U-shaped link slot 6 and the first door leaf 100, one end of third connecting rod 7 is hinged preferably by the side of U-shaped link slot 6 and the second door leaf 300, effect due to U-shaped link slot 6 is to provide Mulit-point Connection, therefore by regulating the position of the tie point of first connecting rod 3 or third connecting rod 7 and U-shaped link slot 6, in the scope of 0 ° to 95 °, the opening angle of the first door leaf 100 or the second door leaf 300 can just be adjusted neatly.
On the basis of technique scheme, the base of the first cylinder 200 and the second cylinder 400 is preferably provided with rotating shaft respectively, when the expansion link 201 of the first cylinder 200 and the expansion link 401 of the second cylinder 400 elongate or shorten, the first cylinder 200 and the second cylinder 400 can around respective axis of rotation.
As shown in Figure 5 and Figure 6, on the basis of technique scheme, first cylinder 200 and the second cylinder 400 are preferably with underground pressure air air source A as power source, the input of the first gas circuit control unit and the second gas circuit control unit is connected with described underground pressure air air source A, the output of the first gas circuit control unit and the second gas circuit control unit is connected with the first cylinder 200 and the second cylinder 400 respectively, and the expansion link 401 in order to the expansion link 201 and the second cylinder 400 that control the first cylinder 200 elongates or shortens.
Specifically, the first pneumatic two-way valve QRF1 is preferably provided with between the input of the second gas circuit control unit and underground pressure air air source A, first pneumatic two-way valve QRF1 and the first cylinders 200, during in order to drive the first door leaf 100 to open or close at the first cylinder 200, cut off or connect the underground pressure air air source A of the second gas circuit control unit; The second pneumatic two-way valve QRF2 is preferably provided with between the input of the first gas circuit control unit and underground pressure air air source A, second pneumatic two-way valve QRF2 is connected with the second cylinder 400, during in order to drive the second door leaf 300 to open or close at the second cylinder 400, cut off or connect the underground pressure air air source A of the first gas circuit control unit.
Above-mentioned first gas circuit control unit preferably includes: two three air-flow selector switch K1 and K2, lay respectively at the inner side and outer side of the first door leaf 100, and each three air-flow selector switches comprise out a Fk, zero-bit F0 and off-position Fg tri-gears, the inlet end A in parallel with underground pressure air source of the gas of two three air-flow selector switch K1 and K2, two three air-flow selector switch K1 with K2 open a Fk parallel connection after be connected with the contraction air inlet port of the first cylinder 200, be connected with the stretching, extension air inlet port of the first cylinder 200 after the off-position Fg parallel connection of two three air-flow selector switch K1 with K2, the zero-bit F0 of two three air-flow selector switch K1 and K2 is then vacant, above-mentioned second gas circuit control unit preferably includes: two three air-flow selector switch K3 and K4, lay respectively at the inner side and outer side of the second door leaf 300, and each three air-flow selector switches comprise out a Fk, zero-bit F0 and off-position Fg tri-gears, the inlet end of two three air-flow selector switch K3 and K4 is in parallel with underground pressure air air source A, two three air-flow selector switch K3 with K4 open a Fk parallel connection after be connected with the contraction air inlet port of the second cylinder 400, be connected with the stretching, extension air inlet port of the second cylinder 400 after the off-position Fg parallel connection of two three air-flow selector switch K3 with K4, the zero-bit F0 of two three air-flow selector switch K3 and K4 is then vacant.
The first loop is preferably provided with between the contraction air inlet port of above-mentioned second cylinder 400 and the stretching, extension air inlet port of the first cylinder 200, first loop is provided with the first Pneumatic check valve QDF1, because the first Pneumatic check valve QDF1 can make pressure general mood stream only from the contraction air inlet port of the second cylinder 400 towards the stretching, extension air inlets flow of the first cylinder 200, and cannot flow in the other direction, therefore can in order to when the contraction inlet charge of the second cylinder 400, make the stretching, extension air inlet port also air inlet of the first cylinder 200, and in order to when the stretching, extension inlet charge of the first cylinder 200, make the contraction air inlet port not air inlet of the second cylinder 400, preferably second servo loop is provided with between the contraction air inlet port of above-mentioned first cylinder 200 and the stretching, extension air inlet port of the second cylinder 400, second servo loop is provided with the second Pneumatic check valve QDF2, because the second Pneumatic check valve QDF2 can make pressure general mood stream only from the contraction air inlet port of the first cylinder 200 towards the stretching, extension air inlets flow of the second cylinder 400, and cannot flow in the other direction, therefore can in order to when the contraction inlet charge of the first cylinder 200, make the stretching, extension air inlet port also air inlet of the second cylinder 400, and in order to when the stretching, extension inlet charge of the second cylinder 400, make the contraction air inlet port not air inlet of the first cylinder 200.
When needs unlatching the first door leaf 100, the gear of three air-flow selector switch K1 or K2 of the first gas circuit control unit can be allocated to open a Fk, now underground pressure air air source A is by the contraction air inlet port air feed of supply air line to the first cylinder 200, to drive the expansion link 201 of the first cylinder 200 to shorten, and drive second connecting rod 4 to rotate around fixed axis 5, thus drive first connecting rod 3 to move, and open the first door leaf 100.Meanwhile, the pressure general mood of inflow fails to be convened for lack of a quorum and to be closed by the first pneumatic two-way valve QRF1, thus cuts off the underground pressure air air source A of the second gas circuit control unit, and the second cylinder 400 is run out of steam source.In addition, pressure general mood stream also will by second servo loop and the second Pneumatic check valve QDF2, flow into the stretching, extension air inlet port of the second cylinder 400, to drive the expansion link 401 of the second cylinder 400 to extend, and drive double leval jib 8 to rotate around fixed axis 5, thus drive third connecting rod 7 to move, and close the second door leaf 300.Therefore, ensure that the mutual locking between the first door leaf 100 and the second door leaf 300.
When pedestrian is by after the first door leaf 100, the gear of three air-flow selector switch K1 or K2 can be allocated to off-position Fg, now underground pressure air air source A is by by the stretching, extension air inlet port air feed of supply air line to the first cylinder 200, to drive the expansion link 201 of the first cylinder 200 to extend, and drive second connecting rod 4 to rotate around fixed axis 5, thus drive first connecting rod 3 to move, and close the first door leaf 100.Meanwhile, the pressure general mood of inflow fails to be convened for lack of a quorum and to be opened by the first pneumatic two-way valve QRF1, thus connects the underground pressure air air source A of the second gas circuit control unit, and the power source of the second cylinder 400 is recovered.In addition, due to the one-way guide flow effect of the first loop and the first Pneumatic check valve QDF1, pressure general mood stream cannot flow into the contraction air inlet port of the second cylinder 400, thus the second cylinder 400 is failure to actuate.Thus, the locking of the second door leaf 300 is made to be removed.
After the first door leaf 100 cuts out completely, also the gear of three air-flow selector switch K1 or K2 can be allocated to zero-bit F0, return original state to make air door switch device.
When needs unlatching the second door leaf 300, the gear of three air-flow selector switch K3 or K4 of the second gas circuit control unit can be allocated to open a Fk, now underground pressure air air source A is by the contraction air inlet port air feed of supply air line to the second cylinder 400, to drive the expansion link 401 of the second cylinder 400 to shorten, and drive double leval jib 8 to rotate around fixed axis 5, thus drive third connecting rod 7 to move, and open the second door leaf 300.Meanwhile, the pressure general mood of inflow fails to be convened for lack of a quorum and to be closed by the second pneumatic two-way valve QRF2, thus cuts off the underground pressure air air source A of the first gas circuit control unit, and the first cylinder 200 is run out of steam source.In addition, pressure general mood stream also will by the first loop and the first Pneumatic check valve QDF1, flow into the stretching, extension air inlet port of the first cylinder 200, to drive the expansion link 201 of the first cylinder 200 to extend, and drive second connecting rod 4 to rotate around fixed axis 5, thus drive first connecting rod 3 to move, and close the first door leaf 100.Therefore, ensure that the mutual locking between the second door leaf 300 and the first door leaf 100.
When pedestrian is by after the second door leaf 300, the gear of three air-flow selector switch K3 or K4 can be allocated to off-position Fg, now underground pressure air air source A is by by the stretching, extension air inlet port air feed of supply air line to the second cylinder 400, to drive the expansion link 401 of the second cylinder 400 to extend, and drive double leval jib 8 to rotate around fixed axis 5, thus drive third connecting rod 7 to move, and close the second door leaf 300.Meanwhile, the pressure general mood of inflow fails to be convened for lack of a quorum and to be opened by the second pneumatic two-way valve QRF2, thus connects the underground pressure air air source A of the first gas circuit control unit, and the power source of the first cylinder 200 is recovered.In addition, due to the one-way guide flow effect of second servo loop and the second Pneumatic check valve QDF2, pressure general mood stream cannot flow into the contraction air inlet port of the first cylinder 200, thus the first cylinder 200 is failure to actuate.Thus, the locking of the first door leaf 100 is made to be removed.
After the second door leaf 300 cuts out completely, also the gear of three air-flow selector switch K3 or K4 can be allocated to zero-bit F0, return original state to make air door switch device.
It should be noted that, as three air-flow selector switch K1 and K2 of the first gas circuit control unit, and second three air-flow selector switch K3 and K4 of gas circuit control unit when being all in zero-bit F0, first pneumatic two-way valve QRF1 and the second pneumatic two-way valve QRF2 is all switched on, now air door switch device is in original state, and the first door leaf 100 and the second door leaf 300 are all closed.
Due in the air door switch device that above-mentioned the present embodiment provides, preferably be provided with first and second the pneumatic two-way valve for cutting off and connect described underground pressure air source of the gas, and for controlling first and second Pneumatic check valve of air-flow one-way flow, it thoroughly instead of traditional locking wire rope, therefore, can ensure when the first or second door leaf is opened, another road door leaf can cut out automatically, and really can cut off the driving power source of another road door leaf, thus ensure that the mutual blocking function between twice door leaf, stability when improve door opening and close and reliability, the twice door leaf solving air door in prior art cannot the technical problem of reliable mutually locking effectively, effectively prevent the phenomenon generation that twice air door is opened simultaneously, and then avoid occurring down-hole Air escape branch, stop the generation of mine ventilation gas accident, also can not make troubles and potential safety hazard to pedestrian.And, due in the air door switch device that the invention described above provides, to be preferably with underground pressure air source of the gas as power source, therefore there is the advantages such as the simple and manufacturing cost of energy-conserving and environment-protective, structure is lower.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in previous embodiment, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of embodiment of the present invention technical scheme.
Claims (12)
1. an air door switch device, is characterized in that, comprising: first connecting rod, second connecting rod, cylinder and gas circuit control unit, wherein,
One end of described first connecting rod is hinged with the door leaf be arranged in underworkings, the other end of described first connecting rod and one end of described second connecting rod hinged;
The other end of described second connecting rod and the expansion link of described cylinder hinged, and described second connecting rod is provided with fixed axis, when the expansion link of described cylinder elongates or shortens under the control of described gas circuit control unit, described second connecting rod rotates around described fixed axis under the drive of described expansion link, and drive described first connecting rod to move, to open or to close described door leaf;
Wherein, one end of described first connecting rod is hinged by the side of U-shaped link slot and described door leaf, by regulating the position of the tie point of described first connecting rod and described U-shaped link slot, can adjust the opening angle of described door leaf.
2. air door switch device according to claim 1, is characterized in that, the opening angle of described door leaf is 0 ° to 95 °.
3. air door switch device according to claim 1, is characterized in that, the base of described cylinder is provided with rotating shaft, and when the expansion link of described cylinder elongates or shortens, described cylinder can around described axis of rotation.
4. air door switch device according to claim 1, it is characterized in that, described cylinder with underground pressure air source of the gas for power source, the input of described gas circuit control unit is connected with described underground pressure air source of the gas, the output of described gas circuit control unit and described cylinders, elongate or shorten in order to the expansion link controlling described cylinder.
5. air door switch device according to claim 4, is characterized in that, described gas circuit control unit comprises:
Two three air-flow selector switches, lay respectively at the inner side and outer side of described door leaf, and each three air-flow selector switches comprise out position, zero-bit and off-position three gears, the inlet end of described two three air-flow selector switches is in parallel with described underground pressure air source of the gas, described two three air-flow selector switches open position parallel connection after be connected with the contraction air inlet port of described cylinder, be connected with the stretching, extension air inlet port of described cylinder after the off-position parallel connection of described two three air-flow selector switches, the zero-bit of described two three air-flow selector switches is vacant.
6. an air door switch device, is characterized in that, comprising: first connecting rod, second connecting rod, third connecting rod, double leval jib, the first cylinder, the second cylinder, the first gas circuit control unit and the second gas circuit control unit, wherein,
One end of described first connecting rod is hinged with the first door leaf be arranged in underworkings, the other end of described first connecting rod and one end of described second connecting rod hinged;
The other end of described second connecting rod and the expansion link of described first cylinder hinged, and described second connecting rod is provided with fixed axis, when the expansion link of described first cylinder elongates or shortens under the control of described first gas circuit control unit, described second connecting rod rotates around described fixed axis under the drive of the expansion link of described first cylinder, and drive described first connecting rod to move, to open or to close described first door leaf;
One end of described third connecting rod with to be arranged in underworkings and hinged with described first door leaf the second door leaf separately, the other end of described third connecting rod and one end of described double leval jib hinged;
The other end of described double leval jib and the expansion link of described second cylinder hinged, and described double leval jib is provided with fixed axis, when the expansion link of described second cylinder elongates or shortens under the control of described second gas circuit control unit, described double leval jib rotates around described fixed axis under the drive of the expansion link of described second cylinder, and drive described third connecting rod to move, to open or to close described second door leaf;
Wherein, one end of described first connecting rod is hinged by the side of U-shaped link slot and described first door leaf, one end of described third connecting rod is hinged by the side of U-shaped link slot and described second door leaf, by regulating the position of the tie point of described first connecting rod or third connecting rod and described U-shaped link slot, the opening angle of described first door leaf or the second door leaf can be adjusted.
7. air door switch device according to claim 6, is characterized in that, the opening angle of described first door leaf and the second door leaf is respectively 0 ° to 95 °.
8. air door switch device according to claim 6, it is characterized in that, the base of described first cylinder and the second cylinder is respectively arranged with rotating shaft, and when the expansion link of described first cylinder and the second cylinder elongates or shortens, described first cylinder and the second cylinder can around respective axis of rotation.
9. air door switch device according to claim 6, it is characterized in that, described first cylinder and the second cylinder with underground pressure air source of the gas for power source, the input of described first gas circuit control unit and the second gas circuit control unit is connected with described underground pressure air source of the gas, the output of described first gas circuit control unit and the second gas circuit control unit respectively with described first cylinder and the second cylinders, elongate or shorten in order to the expansion link controlling described first cylinder and the second cylinder.
10. air door switch device according to claim 9, is characterized in that,
The first pneumatic two-way valve is provided with between the input of described second gas circuit control unit and described underground pressure air source of the gas, described first pneumatic two-way valve and described first cylinders, in order to when the first door leaf described in described first air cylinder driven opens or cuts out, cut off or connect the underground pressure air source of the gas of described second gas circuit control unit;
The second pneumatic two-way valve is provided with between the input of described first gas circuit control unit and described underground pressure air source of the gas, described second pneumatic two-way valve and described second cylinders, in order to when the second door leaf described in described second air cylinder driven opens or cuts out, cut off or connect the underground pressure air source of the gas of described first gas circuit control unit.
11. air door switch devices according to claim 9 or 10, is characterized in that,
Described first gas circuit control unit comprises: two three air-flow selector switches, lay respectively at the inner side and outer side of described first door leaf, and each three air-flow selector switches comprise out position, zero-bit and off-position three gears, the inlet end of described two three air-flow selector switches is in parallel with described underground pressure air source of the gas, described two three air-flow selector switches open position parallel connection after be connected with the contraction air inlet port of described first cylinder, be connected with the stretching, extension air inlet port of described first cylinder after the off-position parallel connection of described two three air-flow selector switches, the zero-bit of described two three air-flow selector switches is vacant,
Described second gas circuit control unit comprises: two three air-flow selector switches, lay respectively at the inner side and outer side of described second door leaf, and each three air-flow selector switches comprise out position, zero-bit and off-position three gears, the inlet end of described two three air-flow selector switches is in parallel with described underground pressure air source of the gas, described two three air-flow selector switches open position parallel connection after be connected with the contraction air inlet port of described second cylinder, be connected with the stretching, extension air inlet port of described second cylinder after the off-position parallel connection of described two three air-flow selector switches, the zero-bit of described two three air-flow selector switches is vacant.
12. air door switch devices according to claim 11, is characterized in that,
The first loop is provided with between the contraction air inlet port of described second cylinder and the stretching, extension air inlet port of described first cylinder, described first loop is provided with the first Pneumatic check valve, in order to when the contraction inlet charge of described second cylinder, make the stretching, extension inlet charge of described first cylinder, and in order to when the stretching, extension inlet charge of described first cylinder, make the contraction air inlet port not air inlet of described second cylinder;
Second servo loop is provided with between the contraction air inlet port of described first cylinder and the stretching, extension air inlet port of described second cylinder, described second servo loop is provided with the second Pneumatic check valve, in order to when the contraction inlet charge of described first cylinder, make the stretching, extension inlet charge of described second cylinder, and in order to when the stretching, extension inlet charge of described second cylinder, make the contraction air inlet port not air inlet of described first cylinder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210019125.XA CN103216254B (en) | 2012-01-20 | 2012-01-20 | Air door switch device |
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| CN201210019125.XA CN103216254B (en) | 2012-01-20 | 2012-01-20 | Air door switch device |
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| CN103216254B true CN103216254B (en) | 2015-10-21 |
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| CN107201711B (en) * | 2016-03-17 | 2023-05-12 | 俞祁浩 | Method for regulating and controlling roadbed convective heat transfer by hairpin |
| CN106549348A (en) * | 2016-10-18 | 2017-03-29 | 成都尚智恒达科技有限公司 | A kind of multifunctional household line concentrating case |
| CN106374360A (en) * | 2016-10-18 | 2017-02-01 | 成都尚智恒达科技有限公司 | Multifunctional household weak electric box |
| CN106455435A (en) * | 2016-10-18 | 2017-02-22 | 成都尚智恒达科技有限公司 | Air-blast heat dissipation type household normally-closed weak electricity box |
| CN106505497A (en) * | 2016-10-18 | 2017-03-15 | 成都尚智恒达科技有限公司 | A kind of normally closed type family expenses weak current box |
| CN106451274A (en) * | 2016-10-18 | 2017-02-22 | 成都尚智恒达科技有限公司 | Household lockable weak current box adopting air-blowing heat dissipation |
| CN106451273A (en) * | 2016-10-18 | 2017-02-22 | 成都尚智恒达科技有限公司 | Household power supply line concentration box with locking function |
| CN107013120A (en) * | 2017-03-30 | 2017-08-04 | 中国人民解放军61517部队 | The power set of people's air defense Flood gate |
| CN107989645A (en) * | 2017-11-15 | 2018-05-04 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | Metallurgy uses automatic open close air door and underground mine ventilating system |
| CN107989644B (en) * | 2018-01-31 | 2019-04-12 | 张雪峰 | A kind of coal mine underground air door blocking device |
| CN109779669B (en) * | 2019-03-27 | 2024-01-23 | 淮南矿业(集团)有限责任公司 | Control method of device for automatically controlling air door by double cylinders |
| CN111928363B (en) * | 2020-07-15 | 2022-07-01 | 中科瑞城设计有限公司 | Indoor air quality automatic detection purifies adjusting device based on healthy building |
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| US6955594B2 (en) * | 2003-06-27 | 2005-10-18 | Kennedy William R | Mine door system including an air pressure relief door |
| CN101270670A (en) * | 2006-05-05 | 2008-09-24 | 陈树林 | Front and back opening/closing split type self-controllable power throttle |
| CN200943506Y (en) * | 2006-09-15 | 2007-09-05 | 卢玉彬 | Hydraulic closing device for ventilation gate for mining |
| CN100575666C (en) * | 2007-01-30 | 2009-12-30 | 山东中大机械制造有限公司 | Automatic switching pneumatic interlocking crashproof air door and control method thereof |
| CN202441411U (en) * | 2012-01-20 | 2012-09-19 | 淮南矿业(集团)有限责任公司 | Air door opening and closing device |
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