The content of the invention
The task of the present invention is to provide a kind of exhaust duct, and the supporting member for acting on operating element is reduced in the exhaust duct
Or load on the transmission mechanism of operating element and thus prevent the damage of the supporting member or transmission mechanism of operating element.
In order to solve the task, a kind of exhaust duct is proposed according to the present invention, the exhaust duct include operating element, stabilizer and
At least one blade, the operating element is swingable in supporting member and/or is rotatably supported on blade, and the stabilizer can be transported
It is supported on dynamicly on operating element.Stabilizer has stop surface, and backstop is provided with blade and/or on operating element
Face, wherein, when operating element moves, the stop surface of stabilizer can abut in abutment face and limit the pendulum of operating element
Dynamic motion and/or rotational motion.
The present invention is based on the following considerations, and not limits the range of movement or warp of blade or shutoff device as prior art
By the range of movement of supporting member limitation operating element, but additional stabilizer is directly set on operating element, the stabilizer
Directly limit the range of movement of operating element.Therefore stabilizer works as the backstop for operating element so that be not limit
The hunting range of blade processed or the execution scope of shutoff device, but may act on supporting member or the driver adjoined in load
The range of movement of operating element is just directly limited before structure.Therefore the power being applied on operating element is not delivered to supporting member or led
On bar, but directly it is delivered to via stabilizer on other components of blade or exhaust duct.Therefore, in the swing row of operating element
Journey or rotational travel are not had in limited time or only little force is delivered to supporting member and component downstream, for example transmitted on guide rod,
It is damaged so as to reliably prevent supporting member and component downstream.
Stabilizer is so supported on operating element so that stabilizer in other words stabilizer stop surface operating element put
Reclined during dynamic or rotation with abutment face.For operating element for example with axle, and stabilizer has space, the axle extends through this
Space.Thus stabilizer can be swung together with operating element, and rotational motion can also be also carried out in this operating element.
In order to limit the oscillating motion of operating element, stop surface is preferably provided in swaying direction, and abutment face is set
On blade.Therefore operating element is swung to such degree together with stabilizer, until stabilizer along swaying direction, i.e. for example
Laterally or up or down abut in the abutment face of blade, thus prevent operating element to enter one along swaying direction
Step motion.
It is preferred that stabilizer is swingable but is supported on without relative rotation on blade.That is, stabilizer can operate
Element along swaying direction swing when towards blade-side backstop motion.But stabilizer can not be with operation when operating element rotates
Element rotates together.Because stabilizer can not rotate, thus such as stop surface relative to the abutment face on blade orientation not
Become, so that it is guaranteed that the stop surface and abutment face can be against each other when operating element is swung.
In order to limit the rotational motion of operating element, stop surface can also be relative to the longitudinal axis of axle in the form of implementation
Radially set, and the abutment face is disposed radially within operating element relative to longitudinal axis.Stop surface and abutment face are set
It is set to so that they can be against each other when operating element rotates.The further rotation of operating element in the following way by
Locking:Stabilizer is supported on blade and can not thus rotated together with operating element without relative rotation.If operating
Abutment face on element enters with stop surface to be contacted, then thus form it is firm coordinate supporting member, thus reliably prevent operation
The further rotation of element.
That operating element also may be configured to multi-piece type and especially have handle element, the handle element set is attached to axle
On.Abutment face is preferably provided on the handle element.This structure can realize the simple assembling of exhaust duct.Such as can be
The axle is loaded in one installation steps and stabilizer set is attached on axle.And then the handle element with abutment face is pacified
It is attached on axle, the slewing area of operating element can be adjusted by orientation of the handle element on axle herein.
In order to improve the supporting of stabilizer and/or operating element on blade, at least one cunning can be provided with blade
Dynamic face, stabilizer and/or operating element are abutted on the sliding surface.The sliding surface for example constructs globulate, wherein, spherical watch
The center in face is preferably pivotal point, the i.e. supporting member of operating element.Stabilizer or operating element abut in sliding surface with guide surface
On so that contacted all the time with sliding surface when operating element is swung.Thus the crowded bad of such as operating element is prevented, because sliding surface
Operating element is supported along the longitudinal direction of axle.Stabilizer or operating element and operation member are passed through by this sliding surface in other words
The position of part independently abut on the sliding surface ensure stabilizer or operating element seamlessly support and in vehicle just
Undesirable noise (such as because operating element gear is come on blade) is prevented when often using.
Sliding members and/or damping element can be additionally provided between sliding surface and stabilizer.This can for example reduce
Frictional force between sliding surface and stabilizer, so as to operate the operating element with less operating physical force.Alternatively,
But also can increasing friction force so that operating element can not remove from default position.
Likewise it is possible to sliding members and/or damping element are provided between stabilizer and blade and/or operating element.
Specific implementation form
Shown in Fig. 1 a and 1b by exhaust duct 10 known in the art, there is the exhaust duct so-called unicontrol to fill
Put.Exhaust duct 10 has multiple horizontally disposed, the first blades 12 that can be swung respectively around rotary shaft 14 and multiple vertical
The second blade 16 setting, can similarly being swung around rotary shaft 18.Shutoff device 20 is additionally provided with, the shutoff device has
The closing valve 22 that can be swung around axis 24.
A common operating element 26 is provided with order to be adjusted to blade 12 and 16 and shutoff device 20, the behaviour
It is supported on a horizontal blade 12 as element and is coupled with the multiple vertical blade 16.Operating element 26 is by supporting
Part 30 is supported on the blade 12.Operating element 26 can rotate in the supporting member 30, to be adjusted to closing valve 22
It is whole.It is such as visible in Fig. 1 a and 1b, guide rod 28 is additionally provided with operating element 26, operating element 26 fills via the guide rod with closing
20 are put to couple.
By the horizontal movement of operating element 26 vertical blade 16 can be made to be swung around its rotary shaft 18.It is if vertical
Ground moving operation element 26, then horizontal blade 12 thus swung around its rotary shaft 14.Can be with by rotating operation element 26
Be adjusted via guide rod 28 to closing valve 22 and thus adjust air stream by exhaust duct 10.This exhaust duct 10
The mode of action is known per se and is therefore no longer described in detail.
Supporting member 30 is configured to so that when operating element 26 moves, blade 12,16 is together swung with operating element 26.Go out
In vision reason, the supporting member 30 is retracted in the housing 32 of exhaust duct 10 far very much.But thus in the handle of operating element 26
Longer lever arm h is formed between element 34 and supporting member 30 (referring to Fig. 2).
Blade 12,16 or the hunting range for closing valve 22 are limited.If reach blade 12,16 sail angle or
Close valve 22 terminal location, then in the case of to 26 further applying power of operating element the blade or close valve not
It can further swing, continue to act on supporting member 30 and guide rod 28 in this operating physical force.This may cause supporting member 30 or guide rod
28 damages.
In order to reduce the load acted on operating element 26 or guide rod 28, additionally have by the exhaust duct 10 of the present invention
The stabilizer 36 shown in figs 2 and 3.Remaining structure of exhaust duct corresponds to the conventional exhaust for example shown in Fig. 1 a and 1b
The structure in road.
E.g. particularly visible in figures 4 and 5, operating element is configured to two-piece type, i.e., including an axle 40 and one
Handle element 34, the handle element are fixed on the torque transfer structure 44 being arranged on axle 40 with receiving portion 42.Axle 40 has
Spherical thickening part 46, axle 40 is swingable by the thickening part and is rotatably supported in supporting member 30.
It is seen that, stabilizer 36 has space 38, and the axle 40 of operating element 26 passes through the space, made as in figs 2 and 3
Obtaining axle can freely rotate relative to stabilizer 36.Space 38 forms the other support for axle 40 to a certain extent.
Stabilizer 36 has the first section 48, and first section has substantially rectangular cross section and including opposite
90 ° of one stop surface 50 and deflection are setting, are equally the second opposite stop surface 52.In annular second of stabilizer 36
Section 54 is provided with radially-protruding block 56, and the radial direction radially set relative to longitudinal axis is respectively equipped with these blocks
Stop surface 58.
Being formed on blade 16 has receiving space 60, and the first section 48 of axle 40 and stabilizer 36 is contained in receiving sky
Between in.Receiving space 60 has substantially rectangular cross section.On the side, i.e. in the horizontal direction on H receiving space 60 by first
Abutment face 62 is limited, and the first stop surface 50 is arranged in a height these first abutment faces in other words with stabilizer 36.Perpendicular
To on V, receiving space 60 is limited Nogata by the second abutment face 64.
As seen in Figure 4, handle element 34 has the space 66 of cup-shaped, and stabilizer 36 is partially housed in the space
In.Radial direction abutment face 68 is provided with the space 66, these radial direction abutment faces as explained below can be with radially stopping
The mating reaction of block face 58.
In addition, being provided with sliding surface 70 on the leading edge of blade 12, the guide surface 72 of operating element 26 abuts in the slip
On face (Fig. 5 to 7), it is arranged in guide surface form of implementation as shown here on handle element 34.The substantially structure of sliding surface 70
Part-spherical is caused, the radius to pivotal point of the operating element 26 in supporting member 30 is constant.Put in operating element 26
When dynamic, the operating element slides on the sliding surface 70 so that operating element 26 be independently reliably directed with position and
Such as it will not be squeezed bad.
In addition, damping element 76 is provided with the second stop surface 52 of stabilizer.The spacing selection of each second abutment face 64
Into so that stabilizer 36 is abutted in the abutment face 64 with damping element 76.Therefore between stabilizer is no on vertical direction V
Gap and it can not be swung relative to blade 12.
If operating element 26 moves along vertical direction V, horizontal blade 12 is swung together with operating element 26.
Therefore via stabilizer 36, more specifically stop surface 52 and damping element 76 are passed to the leaf for the motion of operating element 26
On piece 12 so that the blade 12 is swung together with operating element 26.
If blade 12 at utmost swings, for example clinged in the terminal backstop being not shown here, operating element
26 can not further move along vertical direction, because operating element 26 abuts in the abutment face 64 of blade 12 via stop surface 52
On.
In order that vertical blade 16 is swung, operating element 26 moves along horizontal direction H.Receiving space 60 is configured to,
So that operating element 26 and stabilizer 36 have enough freedoms of motion, to swing the blade 16.I.e. each abutment face
62 there is enough spacing swing operating element 26 to each other.
Operating element 26 can be swung along horizontal direction H until the first stop surface 50 is abutted in the first abutment face 62.
Once the stop surface 50 is abutted in the abutment face 62, operating element 26 is just no longer able to further horizontal hunting.
In order to open or close the shutoff device 20 and handle element 34 in other words of rotating operation element 26.The motion is led to
Cross following manner to be limited, i.e., the radial direction abutment face 68 together rotated with handle element 34 abuts in the radial direction stop surface of stabilizer 36
On 58.
Due to the first section 48 of rectangle and the receiving space 60 of rectangle of stabilizer 36, although stabilizer can be along dampening
Square in receiving space 60 swing but be supported on without relative rotation on blade 12 around the longitudinal axis of axle 40.Due to patch
Abutted in by face 64 on radial direction stop surface 52, so only by making stabilizer 36 together rotate, operating element 26 can just enter one
Step rotates.Therefore the further rotation of operating element 26 is prevented by stabilizer 36.
Radial direction stop surface 58 and radial direction abutment face 68 are positioned to so that the limited closing with closing valve 22 of rotational motion
Position or full opening of position occur simultaneously.Therefore reliably prevent and reaching the closed position for closing valve 22 and operation member
The excess load of guide rod 28 when part 26 further rotates.
Similarly, the first stop surface 50 and the first abutment face 62 are positioned to so that feelings of the operating element 26 in horizontal hunting
Just stop before it can produce load to supporting member 30 or other components under condition.
Similarly, when reaching the full swing angle of blade 12 on vertical direction V operating element 26 hunting range
Limited by stabilizer 36, the stabilizer is via the first stop surface 50 and the first abutment face 62 and the mating reaction of blade 12.
It is different from the exhaust duct of the prior art shown in Fig. 1 a and 1b, when reaching blade 12,16 maximum deflection
In other words when reaching the terminal backstop of blade 12,16 or shutoff device 20, supporting member 30 can be acted on without further power
Or on guide rod 28.The motion of operating element 26 is directly locked out on the operating element 26, so as to prevent power to be further conducted to
On supporting member 30 and the component in downstream.Because the limitation of oscillating stroke is realized not via supporting member 30, so the supporting member quilt
Discharge, so as to the damage by preventing supporting member 30 or guide rod 28.
Here, the function of damping element 76 is to provide the additional frictional force between stabilizer 36 and blade 12, so as to
Ensure that operating element 26 is retained in the position of setting due to the frictional force of increase.In addition, damping element 76 can eliminate or
Compensation gap that may be present is said, so as to reliably prevent operating element 26 from producing undesirable noise.
Other damping element 78 is arranged between stabilizer 36 and axle 40 and increased between the stabilizer and axle
Frictional force, operating element 26 to be maintained to the position of setting so as to which there is also bigger frictional force, the frictional force in rotational motion
In putting.
As an alternative, sliding members can also be used in substitution damping element 76,78, is reduced by these sliding members and rubbed
Wiping power improves the sliding properties between stabilizer 36 and blade 12 or axle 40 in other words.
It is such as visible in figs. 8 and 9, additional length compensation element 80 can be set on guide rod 28.These length compensations
Element is made up of cylinder body 82, and shaft element 84 is stretched into the cylinder body.Corresponding torque is provided with cylinder body 82 and on shaft element 84
Transmit profile portion.In form of implementation as shown here, groove 86 in a longitudinal direction, and axle member are provided with cylinder body 82
Part 84 has the projection 88 of the ribbed corresponding with groove 86.
Shaft element 84 can be removed or moved into the cylinder body from cylinder body 82 in a longitudinal direction, here, existing with shaft element 84
Position in cylinder body 82 is independently formed the connection of no relative rotation by groove 86 and projection 88.