CN203718099U - Air exhausting device used for aerostat - Google Patents
Air exhausting device used for aerostat Download PDFInfo
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- CN203718099U CN203718099U CN201320878091.XU CN201320878091U CN203718099U CN 203718099 U CN203718099 U CN 203718099U CN 201320878091 U CN201320878091 U CN 201320878091U CN 203718099 U CN203718099 U CN 203718099U
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Abstract
The utility model provides an air exhausting device used for an aerostat. The air exhausting device comprises a valve; the valve comprises a valve body comprising a valve mouth, and comprises a valve cover which is capable of covering the valve mouth in an open and close manner; the valve body is fixed on an air intake and exhausting mouth of an air bag via a valve body installing mechanism along the circumferential direction of the air bag of the aerostat; the valve cover covers the valve mouth in the open and close manner via a control device comprising an opening and closing device; the opening and closing device comprises a driving mechanism connected with the valve cover; the driving mechanism is used for driving the valve cover to be vertically lifted to a set height and driving the valve cover to rotate in an inclining manner and to be kept in a set angle after the valve cover is vertically lifted to the set height; the opening and closing device also comprises a valve cover reset mechanism; and the valve cover reset mechanism is connected with the valve cover and pushes the valve cover to cover the valve mouth again after the driving mechanism stops to drive the valve cover. According to the utility model, vertical lifting and incline rotation of the valve cover are simultaneously achieved; air exhausting areas are increased; collision between air and the valve cover is reduced; and air exhausting speed is increased.
Description
Technical field
The utility model relates to aerostatics technical field, is specifically related to the venting gas appliance for aerostatics.
Background technique
Aerostatics generally refers to that proportion is lighter than soft structure aircraft air, that rely on atmospheric buoyancy force lift-off.The air bag that aerostatics is made by polymer composite and the various device and the useful load that are laid on air bag form, in air bag, be filled with the buoyance lift gas that density ratio air is little, the density difference of the inside and outside gas of air bag provides aerostatics buoyancy, thereby completes aerostatics lift-off.Aerostatics generally comprises balloon and dirigible.The aerostatics being shaped starts lift-off from ground, along with flying height increases, ambient air density and atmospheric pressure reduce gradually, and the buoyance lift gas volume in aerostatics expands rapidly.For safety and maintenance aerostatics aerodynamic configuration, aerostatics need to be discharged certain internal gas, regulates inside and outside differential pressure to certain limit, and this scope is to be determined by the strength of materials, countermeasures, aerodynamic parameter.Even if aerostatics anchoring is on ground or in certain altitude flight, along with the rising of ambient temperature, the internal gas of aerostatics also can expand, and at this moment will discharge certain gas, otherwise can be because overpressure is broken utricule.Therefore, aerostatics all needs venting gas appliance that its inside and outside differential pressure is maintained within a certain range in ground anchoring, be shaped lift-off and the resident process in high-altitude.
In recent years, HAA was once becoming the focus of research, and their final flying height is generally all more than 18km, at this height, air density is less than 1/10th of ground, and dirigible is from ground arrives this height, and inner buoyance lift gas expansion is more than ten times.Therefore be shaped in lift-off process, need to discharge a large amount of gas and maintain hull inside and outside differential pressure balance, exhaust velocity determines by lift-off speed and dirigible volume, and volume is larger, go up to the air faster, and exhaust velocity just needs is faster.
As shown in Figure 1, existing venting gas appliance comprises valve body 100, valve gap 200, motor 300 and screw mandrel 400.This venting gas appliance by motor 300 driven gears the mode by feed screw nut become rotate for straight line motion opening/shutting valve, i.e. vertical unlocking or throttle down.Adopt this venting gas appliance mainly to have the problem of following two aspects:
1. exhaust efficiency is low.This is because the valve gap 200 in this venting gas appliance is fixedly connected with screw mandrel 400, valve gap 200 and screw mandrel 400 can only be done straight line motion, vertically (vertically) rises and declines, when venting gas appliance is opened, 200 pairs of eluting gass of valve gap have certain barrier effect, have slowed down gas purging speed;
2. the time that valve gap 200 is closed is long, affects the accurate control of air bag inside and outside differential pressure.This is because closing of valve gap 200 need drive the rotation of screw mandrels 400 to realize by motor 300, but because the aerostatics quality of need going up to the air is difficult for excessively, being installed on like this motor 300 and screw mandrel 400 on valve also all can not be too large.In addition, to the pitch of screw mandrel 400, also require it can not be too large, and motor 300 rotate also can not be too fast otherwise moment of torsion is inadequate, and simultaneously in order to be conducive to exhaust, valve gap 200 opening travels need to be very long, like this, when closing valve gap 200, the motion mode of screw mandrel 400 nuts (screw thread) can not be too fast, generally need 5-10 second, in this process, air bag inside and outside differential pressure changes, for example, when operator starts while closing the order of venting gas appliance when pressure reduction is 4g, valve is thoroughly closed needs 5-10 second, like this after shutting, pressure reduction has just become 3.8g left and right, therefore valve closing not in time, can affect pressure reduction control accuracy.
Model utility content
Therefore, the utility model aims to provide the venting gas appliance for aerostatics that a kind of exhaust efficiency is high.
For achieving the above object, the utility model provides a kind of venting gas appliance for aerostatics, comprise valve, valve comprises the valve body with valve port and the valve gap that can open and close to cover valve port, valve body is the suction and exhaust ports that is circumferentially fixed on air bag along aerostatics air bag by valve body mounting mechanism, wherein, valve gap can open and close to cover valve port by comprising the control gear of start-stop device, start-stop device comprises: the driving mechanism that connects valve gap, driving mechanism is used for driving valve gap vertical-lifting verted to and remain on predetermined angle by vertical-lifting to predetermined altitude rear driving valve gap to predetermined altitude and at valve gap, and valve gap resetting-mechanism, it is connected with valve gap and promotes valve gap after driving mechanism stops the driving of valve gap and returns back to covering valve port.
Venting gas appliance for aerostatics of the present utility model, by driving mechanism, first valve gap being vertically promoted to predetermined altitude verts this valve gap to and remains on predetermined angle, like this, because venting gas appliance is in the process of exhaust, valve gap becomes predetermined angle setting with horizontal plane, increased leaving area, the gas of discharging and the collision between valve gap have been reduced in aerostatics, make gas purging more smooth and easy, improved gas discharging speed, exhaust efficiency is high.
As a kind of preferred version, control gear also comprises electromagnet, and start-stop device coordinates under the "on" position of electromagnet, make valve gap close and under the off-position of electromagnet, make valve gap open with electromagnet.
At the venting gas appliance for aerostatics of the present utility model, the start-stop device that electromagnet is set and coordinates with electromagnet, once thereby electromagnet energising, start-stop device is about to valve gap and closes, shut-in time is short, once and electromagnet power-off, start-stop device is just opened valve gap to carry out exhaust, simple to operate.
Preferably, driving mechanism coordinates with electromagnet to can drive valve gap vertical-lifting under the off-position of electromagnet and vert subsequently and cannot drive valve gap under the "on" position of electromagnet.
In a preferred embodiment, driving mechanism comprises: motor, the output shaft that it has motor body and stretches out from motor body one end; Rotating component, it engages separably with output shaft, under the state engaging with output shaft at rotating component, rotating component can rotate under the drive of motor, wherein rotating component is connected with valve gap by bindiny mechanism, and bindiny mechanism can be wound on rotating component to promote valve gap to predetermined altitude under the rotarily driving of rotating component; Inclining rotary mechanism, it connects valve gap and for driving valve gap with respect to the horizontal plane to vert to predetermined angle at valve gap vertical-lifting under the continuation of motor drives to predetermined altitude.
Preferably, driving mechanism also comprises clutch mechanism, and clutch mechanism is arranged between rotating component and output shaft, and clutch mechanism and electromagnet match to control rotating component and the separated of output shaft and engage.
In a specific embodiment, clutch mechanism comprises: clutch, its relatively output shaft move axially but be not set on output shaft rotatably, and there is disengaging configuration separated with rotating component under electromagnet "on" position and under electromagnet off-position, engage the driving force of motor to be passed to the engagement positio of rotating component with rotating component; And clutch positioner, it is connected with clutch and coordinates between disengaging configuration and engagement positio, to regulate the position of clutch with electromagnet.
In order to facilitate the installation of driving mechanism, preferably, start-stop device also comprises the support being arranged on valve body, support is across valve port and be positioned at the top of valve gap, motor, rotating component and clutch mechanism are installed on support, on support, be fixed be parallel to valve port radially extend and with the first axle of the coaxial setting of output shaft be parallel to axially extended second axle of valve port, rotating component can be set on the first axle rotatably with respect to the first axle, and clutch positioner comprises: elastic biasing member, between motor body and clutch, be set on output shaft, think that clutch provides the bias force away from motor body direction, and magnetic head arm, can be set in rotatably on the second axle around the second axle, magnetic head arm has first end and the second end whole L-shaped setting, its first end can circumferentially be hinged on clutch along clutch surface slidably, its second end extends near electromagnet, wherein under electromagnet "on" position, the second end of magnetic head arm engages with electromagnet, its first end promotes clutch to disengaging configuration and pressure elasticity biasing member simultaneously, under electromagnet off-position, the second end of magnetic head arm departs from electromagnet, thereby clutch moves to its engagement positio towards rotating component under elastic biasing member effect.
In a preferred embodiment, on valve gap, be installed with pedestal, pedestal is equipped with rotatingshaft along the direction that is parallel to the first axle, bindiny mechanism comprise be connected with rotating component and can be wound in the rope on rotating component and be connected to rope and the pedestal of valve gap between pull bar, drag link sleeve is located on rotatingshaft, and the pedestal moving axis that can rotate is set on rotatingshaft rotatably with respect to pull bar.
Too high in order to prevent that valve gap is raised, preferably, start-stop device also comprises the limit for height mechanism of limiting valve cap lifting height, and limit for height mechanism comprises: spacing jacking block, and it is along being parallel to one end towards valve gap that valve port axial direction is arranged on support; And backstop projection, it is arranged on valve gap and has the stop surface protruding out towards spacing jacking block, and stop surface is relative with spacing jacking block, and limiting valve cap continues to promote when being promoted to stop surface and spacing jacking block butt at valve gap.
In valve gap opening procedure, in order to make to keep valve gap steadily not vert before stop surface and spacing jacking block butt, and after stop surface and spacing jacking block butt, the continuation of motor drives the area that valve gap is verted and increase relief opening, reduce gas and valve gap collision and then the increase gas discharging speed of discharging, and after disappearing, the driving force of driving mechanism closes rapidly valve gap, preferably, start-stop device also comprises rotation preventive mechanism, it is arranged between support and valve gap, for preventing that before valve gap is promoted to stop surface and spacing jacking block butt the valve gap moving axis that rotates from verting, inclining rotary mechanism is arranged between support and valve gap, for driving the valve gap moving axis that rotates to vert to predetermined angle after stop surface and spacing jacking block butt under the continuation driving of motor, valve gap resetting-mechanism comprises: response agency verts, it is arranged between pedestal and support, after disappearing for the driving force at driving mechanism, valve gap is returned back to the state of not verting, and vertical response agency, it is arranged between pedestal and support, so that the valve gap that returns back to the state of not verting is vertically pushed to reply, covers valve port.
In an embodiment, rotation preventive mechanism comprises: protecting jacket, and it is fixedly mounted on one end towards valve gap of support and is set in outside pull bar; And gear piece, it has the blocked part longitudinally that is parallel to pull bar, and vert for preventing rotate first direction or the second direction contrary with first direction of moving axis of valve gap in this blocked part.
In a specific embodiment, inclining rotary mechanism comprises: driving shaft, and it is parallel to rotatingshaft and is arranged in backstop projection, driving shaft and rotatingshaft eccentric setting, and driving shaft is towards the side eccentric setting near gear piece; The bounding means that verts, it is for being limited to the tilt angle of valve gap in predetermined angular range.
Preferably, the response agency that verts comprises the torsion spring being set on rotatingshaft, and vertically response agency comprises the Compress Spring in compressive state being all the time arranged between pedestal and support.
Therefore, venting gas appliance for aerostatics of the present utility model, by driving mechanism, first valve gap is vertically promoted to predetermined altitude and continues and this valve gap is verted to and remain on predetermined angle, like this, because venting gas appliance is in the process of exhaust, valve gap becomes predetermined angle setting with horizontal plane, increased leaving area, greatly reduced the gas of discharging and the collision between valve gap in aerostatics, made gas purging more smooth and easy, improved gas discharging speed, exhaust efficiency is high.
accompanying drawing explanation
Below, describe by reference to the accompanying drawings embodiment of the present utility model in detail, wherein:
Fig. 1 is the perspective view of venting gas appliance of the prior art;
Fig. 2 is the perspective view under an embodiment's of the present utility model valve gap closed condition of the venting gas appliance for aerostatics;
Fig. 3 is venting gas appliance in Fig. 2 worm's eye view under valve gap closed condition;
Fig. 4 is venting gas appliance in Fig. 2 partial elevation view under valve gap closed condition;
Fig. 5 is that the venting gas appliance of Fig. 2 arrives the schematic perspective view behind precalculated position vertically mentioning valve gap;
Fig. 6 is the partial elevation view of Fig. 5;
Fig. 7 is the partial left side view of Fig. 5;
Fig. 8 is that the venting gas appliance valve gap of Fig. 2 rotates to the perspective view after predetermined angle;
Fig. 9 A is the side view of the venting gas appliance part that comprises inclining rotary mechanism and pedestal etc.;
Fig. 9 B show Fig. 9 A along A-A to left sectional view.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below will describe embodiment of the present utility model in detail according to instantiation and with reference to accompanying drawing.But should illustrate, example as herein described is only for explaining the utility model, rather than will limit protection domain of the present utility model.
As shown in Figure 2, according to the venting gas appliance for aerostatics of the present utility model, comprise valve, this valve comprises valve body 5 and valve gap 17.Wherein valve body 5 has valve port 51, and preferably this valve port 51 is center through hole, so that this valve body integral body ringwise.This valve body 5 is the suction and exhaust ports that is circumferentially fixed on air bag along aerostatics air bag by valve body mounting mechanism.Valve gap 17 can open and close to cover valve port 51 to open and close this suction and exhaust ports by comprising the control gear of start-stop device, start-stop device comprises the driving mechanism that connects valve gap 17, driving mechanism is used for driving valve gap 17 vertical-liftings to predetermined altitude and at valve gap 17, by vertical-lifting to predetermined altitude rear driving valve gap 17, verted to and remain on predetermined angle (as the angle value between 45 ° to 85 °, can be also the angle value at other acute angle or obtuse angle).Start-stop device also comprises valve gap resetting-mechanism, and it is connected with valve gap 17 and after driving mechanism stops the driving of valve gap 17, promotes valve gap 17 and returns back to and cover valve port 51.
The venting gas appliance for aerostatics of the present embodiment, by driving mechanism, first valve gap 17 is vertically promoted to predetermined altitude and continues this valve gap 17 is verted to and remains on predetermined angle, like this, because venting gas appliance is in the process of exhaust, valve gap 17 becomes predetermined angle setting with horizontal plane, increased leaving area, the gas of discharging and the collision between valve gap 17 have been reduced in aerostatics, make gas purging more smooth and easy, improved gas discharging speed, exhaust efficiency is high.
As shown in Figures 2 and 3, valve body mounting mechanism for example can comprise mounting flange 6 and trim ring 3.Preferably, mounting flange 6 inner hollow and preferably there are two row's tapped holes, outside one row be used in conjunction with trim ring 3, and the inside one row be used in conjunction with valve body 5, in the middle of aerostatics diaphragm is sandwiched in, rely on friction firmly beforehand means that venting gas appliance is fixed on aerostatics air bag.
Preferably, this control gear also comprises electromagnet 32, and start-stop device coordinates under the "on" position at electromagnet 32, make valve gap 17 close and under electromagnet 32 off-positions, make valve gap 17 open with electromagnet 32.
In the above-mentioned venting gas appliance of the present embodiment, by the start-stop device that electromagnet 32 is set and coordinates with electromagnet 32, once electromagnet 32 energisings, start-stop device is about to valve gap 17 and closes, shut-in time is short, once and electromagnet 32 power-off, start-stop device is just opened valve gap 17 to carry out exhaust, simple to operate and exhaust velocity is high.
Preferably, as shown in Figures 4 to 6, start-stop device comprises driving mechanism and valve gap resetting-mechanism.Wherein, driving mechanism coordinates with electromagnet 32 to can drive valve gap 17 vertical-liftings and vert subsequently and cannot drive valve gap 17 under the "on" position of electromagnet 32 under the off-position of electromagnet 32.
Preferably, driving mechanism comprises motor 14, rotating component 23 and inclining rotary mechanism.Wherein, the output shaft that motor 14 has motor body and stretches out from motor body one end.Rotating component 23 engages separably with output shaft, under the state engaging with output shaft at rotating component 23, rotating component 23 can rotate under the drive of motor 14, wherein rotating component 23 is connected with valve gap 17 by bindiny mechanism, and bindiny mechanism can be wound on rotating component 23 to promote valve gap 17 to predetermined altitude under the rotarily driving of rotating component 23.Inclining rotary mechanism connects valve gap 17 and for driving valve gap 17 with respect to the horizontal plane to vert to predetermined angle at valve gap 17 vertical-liftings under the continuation of motor drives to predetermined altitude.
Preferably, driving mechanism also comprises clutch mechanism.Clutch mechanism is arranged between rotating component 23 and output shaft, and matches to control rotating component 23 and the separated of output shaft and engage as engagement with electromagnet 32.
In a specific embodiment, clutch mechanism comprises clutch 22 and clutch positioner.Wherein, clutch 22 relatively output shaft moves axially but is not set on output shaft rotatably, and has disengaging configuration separated with rotating component 23 under electromagnet 32 "on" positions and engage the driving force of motor 14 to be passed to the engagement positio of rotating component 23 with rotating component 23 under electromagnet 32 off-positions.Clutch positioner is connected with clutch 22 and coordinates between disengaging configuration and engagement positio, to regulate the position of clutch 22 with electromagnet 32.
Adopt the venting gas appliance of the present embodiment, when electromagnet 32 power-off, clutch 22 moves to its binding site engaging with rotating component 23 under the effect of clutch positioner, at this moment, starting electrical machinery 14, the rotary driving force of motor 14 can be passed to rotating component 23 by clutch 22, now, rotating component 23 can rotate and drive valve gap 17 vertical-liftings to predetermined altitude by bindiny mechanism, drive bottom flange 17 at inclining rotary mechanism with respect to the horizontal plane verts to predetermined angle afterwards, after arriving predetermined angle, disable motor 14, clutch 22 and rotating component 23 stalls.Now, because electromagnet 32 is still in off-position, clutch 22 under the effect of clutch positioner still in its engagement positio, and rotating component 23 cannot be along former direction or contrary direction rotation, valve gap 17 is rested on this predetermined angle to carry out exhaust under the restriction of clutch 22.When electromagnet 32 energising, clutch positioner coordinates clutch 22 is moved to disengaging configuration with electromagnet 32.At this moment, because clutch 22 is separated with rotating component 23, cannot be rotating component 23 power that provides support, therefore at the effect bottom flange 17 of valve gap resetting-mechanism, forced back towards and cover valve port 51.
Preferably, start-stop device also comprises the support 37 being arranged on valve body 5, and support 37 is across valve port 51 and be positioned at the top of valve gap 17.Motor 14, clutch mechanism and rotating component 23 are installed on support 37.On support 37, be fixed be parallel to valve port 51 radially extend and with coaxial the first axle 25 arranging of output shaft and axially extended the second axle 27 of being parallel to valve port 51, rotating component 23 can be set on the first axle 25 rotatably with respect to the first axle 25.
Preferably as shown in Fig. 2 and Fig. 4-6, clutch positioner comprises elastic biasing member 35, it is set on output shaft between motor body and clutch 22, think that clutch 22 provides the bias force away from motor body direction, elastic biasing member 35 can be the Returnning spring being set on output shaft, and this Returnning spring one end heads on clutch 22 one end and heads on motor body.Clutch positioner also comprises magnetic head arm 28, and it can be set on the second axle 27 rotatably around the second axle 27.Magnetic head arm 28 has first end and the second end whole L-shaped setting, and its first end can circumferentially be hinged on clutch 22 slidably along clutch 22 surfaces, and its second end extends near electromagnet 32.Wherein, under electromagnet 32 "on" positions, the second end of magnetic head arm 28 engages with electromagnet 32, and its first end promotes clutch 22 to disengaging configuration and pressure elasticity biasing member 35 simultaneously.Under electromagnet 32 off-positions, the second end of magnetic head arm 28 departs from electromagnet 32, thereby clutch 22 moves to its engagement positio towards rotating component 23 under elastic biasing member 35 effects.The opposite end of clutch 22 and rotating component 23 is preferably respectively equipped with tooth, so that engagement engages between the two.
Clutch 22 is preferably circumferentially provided with annular slot along it, and the first end of magnetic head arm 28 is connected in annular slot slidably by pivot.Elastic biasing member 35 can be that Returnning spring or other have flexible member.
Valve gap resetting-mechanism comprises vert response agency and vertical response agency.Wherein, the response agency that verts is arranged between pedestal 9 and support 37, for example, comprise the torsion spring 34 being set in outside rotatingshaft 16, and it returns back to by valve gap 17 state of not verting after disappearing for the driving force at driving mechanism.Vertically response agency is arranged between pedestal 9 and support 37, so that the valve gap 17 that returns back to the state of not verting is vertically pushed to reply, covers valve port 51.Vertically response agency is such as comprising cylinder or being set in the mechanisms such as spring in pull bar 12, be preferably spring, and be preferably the Compress Spring in compressive state 33 all the time, this Compress Spring 33 can be further compressed in valve gap 17 lifting process, after the suffered driving force of valve gap 17 disappears, Compress Spring 33 is tending towards returning back to original state and pushes valve gaps 17 towards valve port 51.In the present embodiment, because Compress Spring 33 is all the time in compressive state, therefore when valve gap 17 is pushed into covering valve port 51, Compress Spring 33 is closely pressed in valve gap on valve body 5, to prevent that gas from escaping along the gap between valve gap 17 and valve body 5.For further improving sealing effect, can also between valve gap 17 and valve body 5, seal ring 8 be set.
Adopt the venting gas appliance of the present embodiment, when electromagnet 32 energising, the second end of magnetic head arm 28 moves and engages with electromagnet 32 towards electromagnet 32, its first end is mobile in annular slot simultaneously also moves clutch 22 towards motor body simultaneously, and then compression reseting spring, now clutch 22 is separated with rotating component 23.After the effect of the clutch 22 being subject to due to rotating component 23 disappears, first the effect bottom flange 17 at torsion spring 34 with respect to the horizontal plane rotates around opposite direction its state that do not vert that returns back to, and then under the effect of Compress Spring 33, rotating component 23 rotates backward, valve gap 17 is moved towards valve port 51, and then it is outer and closely seal valve body 5 under Compress Spring 33 effects to cover the valve port 51 of valve body 5.The present embodiment only by having completed rapidly closing of valve gap 17 under the energising of electromagnet 32 and the effect of torsion spring 34 and Compress Spring 33, the return action of torsion spring 34 and 33 pairs of valve gaps 17 of Compress Spring utilizes the fireballing many of driven by motor screw mandrel rotation with respect to of the prior art, its shut-in time is short, even can in 1 second, complete closing motion, therefore can accurately control the inside and outside differential pressure of aerostatics.
When electromagnet 32 power-off, the suffered magnetic force of magnetic head arm 28 disappears, and under the restoring force effect of Returnning spring, the engagement positio that clutch 22 engages (engagement) rotating component 23 towards it moves, and magnetic head arm 28 departs from electromagnet 32.Now, starting electrical machinery 14, and then motor 14 is by clutch 22 drive rotating component 23 rotations, causes a part for bindiny mechanism to be wound in rotating component 23, thereby promote valve gap 17, and under the effect of inclining rotary mechanism, make valve gap 17 vert until its predetermined angle place, and now, disable motor 14, rotating component 23 is under the effect of clutch 22, cannot rotate, and then valve gap 17 is rested on to this predetermined angular position, to start exhaust.The present embodiment has only realized gas discharging by the power-off of electromagnet, and the opening time simple to operate and valve gap 17 is short.
In a preferred embodiment, as shown in Figure 4 and Figure 6, on valve gap 17, be installed with pedestal 9, pedestal 9 is equipped with rotatingshaft 16 along the direction that is parallel to the first axle 25, bindiny mechanism comprise be connected with rotating component 23 and can be wound in the rope 11 on rotating component 23 and be connected to rope 11 and the pedestal 9 of valve gap 17 between pull bar 12, pull bar 12 is sheathed on rotatingshaft 16, and pedestal 9 moving axis 16 that can rotate is set on rotatingshaft 16 rotatably with respect to pull bar 12.
For prevent that valve gap from excessively being promoted and and then in order to accelerate valve gap 17 closing velocities, preferably, as shown in Fig. 2, Fig. 6 and Fig. 7, start-stop device also comprises the limit for height mechanism of limiting valve cap 17 lifting heights, limit for height mechanism comprises spacing jacking block 20 and backstop projection 19.Wherein, spacing jacking block 20 is along being parallel to one end towards valve gap 17 that valve port 51 axial directions are arranged on support 37.Backstop projection 19 is arranged on valve gap 17 and has the stop surface 191 protruding out towards spacing jacking block 20.Stop surface 191 is relative with spacing jacking block 20, and limiting valve cap 17 continues to promote when being promoted to stop surface 191 with spacing jacking block 20 butt at valve gap 17.
In order to prevent that valve gap 17 from verting before moving to predetermined altitude, make the lifting process of valve gap 17 more steady, preferably, start-stop device also comprises rotation preventive mechanism, and it is arranged between support 37 and valve gap 17 for being promoted at valve gap 17 and prevents that valve gap 17 moving axis 16 that rotates from verting before stop surface 191 and spacing jacking block 20 butts.Preferably, inclining rotary mechanism is arranged between support 37 and valve gap 17, for driving valve gap 17 moving axis 16 that rotates to vert to predetermined angle (as the angle value between 45 ° to 85 °, can be also the angle value at other acute angle or obtuse angle) after stop surface 191 and spacing jacking block 20 butts under the continuation driving of motor 14.
Adopt the venting gas appliance of the present embodiment, when electromagnet 32 power-off, in the process promoting from valve port 51 at valve gap 17, before stop surface 191 and spacing jacking block 20 butts, under the effect of rotation preventive mechanism, valve gap 17 steadily promotes, until stop surface 191 and spacing jacking block 20 butts, now valve gap 17 cannot continue vertical-lifting, and under the effect of inclining rotary mechanism, and the continuation of motor 14 drives valve gap 17 moving axis 16 that rotates is rotated to predetermined angle.Now, leaving area increases, and exhaust velocity increases, and exhaust efficiency is high.After electromagnet 32 energisings, as mentioned above, the driving force of lifting and rotary valve cover 17 disappears, now under the effect of torsion spring 34, make the valve gap 17 biasing Hui Qiwei state that verts rapidly, and under Compress Spring 33 effect, return back to rapidly the valve port 51 of tight covering valve body 5, venting gas appliance is sealed down in off position.In the present embodiment, the execution stroke of valve gap 17 is short, and the shut-in time is short, greatly reduces the impact on the accurate control of aerostatics inside and outside differential pressure.
In a specific embodiment, rotation preventive mechanism comprises protecting jacket 36 and gear piece 21.Protecting jacket 36 be fixedly mounted on support 37 towards one end of valve gap 17, and it is outer to prevent the swing of pull bar 12 to be set in pull bar 12.Gear piece 21 has the blocked part longitudinally that is parallel to pull bar 12, verts for preventing rotate first direction or the second direction contrary with first direction of moving axis 16 of valve seat in this blocked part.
Preferably as shown in Fig. 4 and Fig. 5, Fig. 6 and Fig. 9 A and 9B, pull bar 12 comprises the first pole and the second pole be arrangeding in parallel, the horizontal opposite end of the first pole and the second pole is connected by connecting rod, blocked part is arranged on a side (being positioned at connecting rod outside) of pull bar 12 between the first pole and the second pole, so that valve gap 17 only can vert towards the opposite side of blocked part.Compress Spring 33 is preferably disposed in pull bar 12.The lower end of the first pole and the second pole is respectively equipped with the axis hole passing for rotatingshaft 16, and torsion spring 34 is sheathed between two axis holes.The moving axis 16 that can rotate between pull bar 12 and valve gap 17 relatively rotates.
Inclining rotary mechanism preferably includes driving shaft 18, it is parallel to rotatingshaft 16 ground and is arranged in backstop projection 19, driving shaft 18 and rotatingshaft 16 eccentric settings, driving shaft 18, towards the side eccentric setting near gear piece 21, also comprises that the bounding means that verts is for being limited to the tilt angle of valve gap in prespecified range.
Adopt the venting gas appliance of the present embodiment, when stop surface 191 and spacing jacking block 20 butts, motor 14 continues to drive rotating component 23 rotations, continuation, to valve gap 17 application of forces, now due to driving shaft 18 and rotatingshaft 16 decentraction, continues to drive valve gap 17 is verted towards the direction contrary with gear piece 21, until reach predetermined angle, now, under the effect of the bounding means that verts, motor 14 stops, and valve gap 17 stops the rotation.At this, the bounding means that verts can be arranged on the limit switch on motor 14.
As a specific embodiment of the present utility model, as shown in Figure 3, venting gas appliance comprises valve gap 17 and valve body 5.Mounting flange 6 inner hollow, have two row's tapped holes, and outside one row be used in conjunction with trim ring 3, and the inside one row be used in conjunction with valve body 5, in the middle of aerostatics diaphragm is sandwiched in, rely on the mode of friction pretension that venting gas appliance is fixed on aerostatics air bag.
Seal ring 8 is fixed on valve body 5, and valve gap 17 is fixedly connected with pedestal 9, and pedestal 9 and pull bar 12 moving axis 16 that can rotate is respectively set on rotatingshaft 16 rotatably, and pedestal 9 can freely rotate with respect to pull bar 12 moving axis 16 that rotates.Under Compress Spring 33 effects, valve gap 17 is pressed on above seal ring 8, and venting gas appliance is sealed down in off position.Returnning spring is set on the output shaft of motor 14, and its one end heads on clutch 22, and the other end heads on motor body, and clutch 22 can move freely along the output shaft of motor 14, and rotating component 23 is set on the first axle 25, and can freely rotate around the first axle 25.Magnetic head arm 28 can freely rotate around the second axle 27.When electromagnet 32 energising, adhesive magnetic head arm 28, under magnetic force, magnetic head arm 28 driving clutch 22 compression reseting springs, clutch 22 departs from rotating component 23, and Compress Spring 33 compresses valve gap 17, and venting gas appliance is in closed condition.
When electromagnet 32 energisings, venting gas appliance is in closed condition, when electromagnet 32 power-off, magnetic head arm 28 leaves electromagnet 32, the anti-clutch 22 that pushes away of Returnning spring, driving clutch 22 and rotating component 23 engagements, motor 14 drives rotating component 23 to rotate, drive pull bar 12 vertically/vertical lifting under the restriction of protecting jacket 36, pull bar 12 drives pedestal 9 and valve gap 17 to rise together, overcome the reaction force of Compress Spring 33, owing to having the constraint of torsion spring 34 and the restriction of gear block 21, valve gap 17 is mentioned in process, can freely not vert, the attitude of meeting held stationary, until be set in the stop surface of the backstop projection 19 outside driving shaft 18, push up spacing jacking block 20.
As shown in Figure 8, when valve gap 17 vertically rises, due to driving shaft 18 and rotatingshaft 16 decentraction, there is the deflection arm of force, as shown in Fig. 9 A and 9B, therefore, the result that motor 14 continues to drive is exactly that valve gap 17 is vertically/vertical lifting on one side, on one side along rotatingshaft 16 rotations, compression torsion spring 34, until be tilted to the predetermined angular position shown in Fig. 8, by limit switch, make motor 14 stalls, valve wide open this moment, air-flow flows out along macropore, has greatly accelerated exhaust velocity.
When electromagnet 32 energising, clutch 22 departs from rotating components 23, verting of torsion spring 34 reply and the acting in conjunction of the vertical reply of Compress Spring 33 under, valve gap 17 is closed rapidly, venting gas appliance is in closed condition.
In sum, in venting gas appliance of the present utility model, by driving mechanism, first valve gap 17 is vertically promoted to predetermined altitude and continues this valve gap 17 is verted to and remains on predetermined angle, like this, because venting gas appliance is in the process of exhaust, valve gap 17 becomes predetermined angle setting with horizontal plane, increased leaving area, reduced the gas of discharging and the collision between valve gap 17 in aerostatics, made gas purging more smooth and easy, improved gas discharging speed, exhaust efficiency is high.
Below by way of example the utility model is illustrated, but is not to limit the utility model scope.Be understood that; under described principle and spirit; can also to example, make a variety of changes, change and combine, as long as these variations and change and combination covered within the scope of claim of the present utility model, all should belong to protection domain of the present utility model.
Claims (13)
1. the venting gas appliance for aerostatics, comprise valve, described valve comprise there is valve port (51) valve body (5) and can open and close to cover the valve gap (17) of described valve port (51), described valve body (5) is the suction and exhaust ports that is circumferentially fixed on described air bag along aerostatics air bag by valve body mounting mechanism, it is characterized in that, described valve gap (17) can open and close to cover described valve port (51) by comprising the control gear of start-stop device, and described start-stop device comprises:
The driving mechanism that connects described valve gap (17), described driving mechanism is used for driving described valve gap (17) vertical-lifting verted to and remain on predetermined angle by vertical-lifting to valve gap (17) described in predetermined altitude rear driving to predetermined altitude and at described valve gap (17); And
Valve gap resetting-mechanism, it is connected with described valve gap (17) and at described driving mechanism, the driving of described valve gap (17) is stopped to the described valve gap of rear promotion (17) and returns back to and cover described valve port (51).
2. venting gas appliance according to claim 1, it is characterized in that, described control gear also comprises electromagnet (32), and described start-stop device coordinates under the "on" position in described electromagnet (32), make described valve gap (17) close and under the off-position of described electromagnet (32), make described valve gap (17) open with described electromagnet (32).
3. venting gas appliance according to claim 2, it is characterized in that, described driving mechanism coordinates with described electromagnet (32) to can drive described valve gap (17) vertical-lifting and vert subsequently and cannot drive described valve gap (17) under the "on" position of described electromagnet (32) under the off-position of described electromagnet (32).
4. venting gas appliance according to claim 3, is characterized in that, described driving mechanism comprises:
Motor (14), the output shaft that it has motor body and stretches out from described motor body one end;
Rotating component (23), it engages separably with described output shaft, under the state engaging with described output shaft at described rotating component (23), described rotating component (23) can rotate under the drive of described motor (14), wherein said rotating component (23) is connected with described valve gap (17) by bindiny mechanism, and it is upper to promote described valve gap (17) to predetermined altitude that described bindiny mechanism can be wound in described rotating component (23) under the rotarily driving of described rotating component (23);
Inclining rotary mechanism, its connect described valve gap (17) and at described valve gap (17) vertical-lifting to driving described valve gap (17) with respect to the horizontal plane to vert to predetermined angle under the continuation of described motor drives after predetermined altitude.
5. venting gas appliance according to claim 4, it is characterized in that, described driving mechanism also comprises clutch mechanism, described clutch mechanism is arranged between described rotating component (23) and described output shaft, and described clutch mechanism and described electromagnet (32) match to control described rotating component (23) and the separated of described output shaft and engage.
6. venting gas appliance according to claim 5, is characterized in that, described clutch mechanism comprises:
Clutch (22), it can move axially but not be set in rotatably on described output shaft by relatively described output shaft, and has disengaging configuration separated with described rotating component (23) under described electromagnet (32) "on" position and engage the driving force of described motor (14) to be passed to the engagement positio of described rotating component (23) with described rotating component (23) under described electromagnet (32) off-position; And
Clutch positioner, it is connected with described clutch (22) and coordinates between described disengaging configuration and described engagement positio, to regulate the position of described clutch (22) with described electromagnet (32).
7. venting gas appliance according to claim 6, it is characterized in that, described start-stop device also comprises the support (37) being arranged on described valve body (5), described support (37) is across described valve port (51) and be positioned at the top of described valve gap (17), described motor (14), rotating component (23) and clutch mechanism are installed on described support (37), on described support (37), be fixed be parallel to described valve port (51) radially extend and with first axle (25) of the coaxial setting of described output shaft be parallel to axially extended second axle (27) of described valve port (51), described rotating component (23) can be set on described the first axle (25) rotatably with respect to described the first axle (25),
And described clutch positioner comprises:
Elastic biasing member (35), is positioned between described motor body and described clutch (22) and is set on described output shaft, thinks that described clutch (22) provides the bias force away from described motor body direction; And
Magnetic head arm (28), can be set in rotatably on described the second axle (27) around described the second axle (27), described magnetic head arm (28) has first end and the second end whole L-shaped setting, its first end can circumferentially be hinged on described clutch (22) slidably along described clutch (22) surface, its second end extends near described electromagnet (32)
Wherein under described electromagnet (32) "on" position, the second end of described magnetic head arm (28) engages with described electromagnet (32), its first end promotes described clutch (22) to described disengaging configuration and compresses described elastic biasing member (35) simultaneously, under described electromagnet (32) off-position, the second end of described magnetic head arm (28) departs from described electromagnet (32), thereby described clutch (22) moves to its engagement positio towards described rotating component (23) under described elastic biasing member (35) effect.
8. venting gas appliance according to claim 7, it is characterized in that, on described valve gap (17), be installed with pedestal (9), described pedestal (9) is equipped with rotatingshaft (16) along the direction that is parallel to described the first axle (25), described bindiny mechanism comprise be connected with described rotating component (23) and can be wound in the rope (11) on described rotating component (23) and be connected to described rope (11) and the pedestal (9) of described valve gap (17) between pull bar (12), described pull bar (12) is sheathed on described rotatingshaft (16), described pedestal (9) can be set on described rotatingshaft (16) with respect to described pull bar (12) rotatably around described rotatingshaft (16).
9. venting gas appliance according to claim 8, is characterized in that, described start-stop device also comprises the limit for height mechanism of restriction described valve gap (17) lifting height, and described limit for height mechanism comprises:
Spacing jacking block (20), it is along being parallel to one end towards described valve gap (17) that described valve port (51) axial direction is arranged on described support (37); And
Backstop projection (19), it is arranged on described valve gap (17) above and has the stop surface (191) protruding out towards described spacing jacking block (20), described stop surface (191) is relative with described spacing jacking block (20), and limiting described valve gap (17) when being promoted to described stop surface (191) and described spacing jacking block (20) butt at described valve gap (17) continues to promote.
10. venting gas appliance according to claim 9, it is characterized in that, described start-stop device also comprises rotation preventive mechanism, it is arranged between described support (37) and described valve gap (17), before being promoted to described stop surface (191) and described spacing jacking block (20) butt at described valve gap (17), prevent that described valve gap (17) from verting around described rotatingshaft (16)
Described inclining rotary mechanism is arranged between described support (37) and described valve gap (17), for driving described valve gap (17) to vert to predetermined angle around described rotatingshaft (16) under the continuation of described motor (14) drives after described stop surface (191) and described spacing jacking block (20) butt
Described valve gap resetting-mechanism comprises:
The response agency that verts, it is arranged between described pedestal (9) and described support (37), after disappearing, described valve gap (17) is returned back to the state of not verting for the driving force at described driving mechanism; And
Vertical response agency, it is arranged between described pedestal (9) and described support (37), so that the described valve gap (17) of the state that do not vert described in returning back to is vertically pushed to reply, covers described valve port (51).
11. venting gas appliance according to claim 10, is characterized in that, described rotation preventive mechanism comprises:
Protecting jacket (36), it is fixedly mounted on one end towards described valve gap (17) of described support (37) and is set in outside described pull bar (12); And
Gear piece (21), it has the blocked part longitudinally that is parallel to described pull bar (12), and this blocked part is used for preventing that described valve gap (17) from verting around the first direction of described rotatingshaft (16) or the second direction contrary with described first direction.
12. venting gas appliance according to claim 11, is characterized in that, described inclining rotary mechanism comprises:
Driving shaft (18), it is parallel to described rotatingshaft and is arranged in described backstop projection (19) (16), described driving shaft (18) and described rotatingshaft (16) eccentric setting, and described driving shaft (18) is towards the side eccentric setting near described gear piece (21);
The bounding means that verts, it is for being limited to the tilt angle of described valve gap in predetermined angular range.
13. venting gas appliance according to claim 10, it is characterized in that, the described response agency that verts comprises the torsion spring being set on described rotatingshaft (16), and described vertical response agency comprises the Compress Spring in compressive state all the time (33) being arranged between described pedestal (9) and described support (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878091.XU CN203718099U (en) | 2013-12-27 | 2013-12-27 | Air exhausting device used for aerostat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878091.XU CN203718099U (en) | 2013-12-27 | 2013-12-27 | Air exhausting device used for aerostat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203718099U true CN203718099U (en) | 2014-07-16 |
Family
ID=51157250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320878091.XU Withdrawn - After Issue CN203718099U (en) | 2013-12-27 | 2013-12-27 | Air exhausting device used for aerostat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203718099U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711977A (en) * | 2013-12-27 | 2014-04-09 | 中国科学院光电研究院 | Gas exhaust device for aerostat |
-
2013
- 2013-12-27 CN CN201320878091.XU patent/CN203718099U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711977A (en) * | 2013-12-27 | 2014-04-09 | 中国科学院光电研究院 | Gas exhaust device for aerostat |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140716 Effective date of abandoning: 20160504 |
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| AV01 | Patent right actively abandoned |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |