CN201866267U - Two-segment type three-connecting-rod valve structure - Google Patents
Two-segment type three-connecting-rod valve structure Download PDFInfo
- Publication number
- CN201866267U CN201866267U CN2010201890830U CN201020189083U CN201866267U CN 201866267 U CN201866267 U CN 201866267U CN 2010201890830 U CN2010201890830 U CN 2010201890830U CN 201020189083 U CN201020189083 U CN 201020189083U CN 201866267 U CN201866267 U CN 201866267U
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- Prior art keywords
- connecting rod
- blade
- transmission shaft
- framework
- interlock
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- Expired - Lifetime
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- Lift Valve (AREA)
Abstract
The utility model discloses a two-segment type three-connecting-rod valve structure that utilizes a three-connecting-rod mechanism to drive a blade with a valve structure. When a driving mechanism acts to drive a linkage shaft to rotate at a prefixed angle, the linkage shaft drives the blade through the three-connecting-rod mechanism. Limited and linked by the three-connecting-rod mechanism, the blade is in lateral translation slightly relative to a frame body, so as to primarily balance the pressure in a fluid channel at two sides of the blade and avoid the consumption of excessive energy for directly opening the blade. Meanwhile, as a transmission shaft is also arranged near the central part of the blade, torsion required for opening the blade is reduced, and the chance of damaging the blade and relative transmission mechanisms at work is further decreased.
Description
Technical field
The utility model relates to a kind of valve mechanism that is applied to fluid passages such as steel works, incinerator, cement plant, laboratory, power plant, relates to a kind of three-link mechanism that utilizes in particular and reaches the two-part three connecting rod valve mechanisms that two-part is opened.
Background technique
Valve (valve) generally is installed in the conveyance conduit of fluid, in order to control, block, the conducting fluid, and air door (Butterfly damper) is a kind of of valve, be mainly used in steel works, incinerator, cement plant, laboratory, power plant etc. in the relatively low environment of air-proof condition requirement, yet, because need to transmit the fluid of high temperature and high pressure, therefore, solid structure, fluid is controlled, processing procedure is adjusted ability etc., is the most basic demand condition.
In general, the structure of the similar fly valve of air door, adopt monolithic or the biplate blade interdicts the fluid passage, one chip utilizes transverse to the blade central shaft as rotating shaft, and open in rotary manner, greatly, therefore the turning radius of its unlatching also needs bigger rotary torsion, but because adopt the one chip blade, so sealing is also preferable; And the blade of double-disk utilizes two semicircular blades of summary to constitute, and is that rotating shaft is rotated with semicircular joint diametrical position in the control, therefore, turning radius is less, only the less torsion of need drives, but because adopt two blades to come combination, so tightness is relatively poor.
Be applied under the environment such as steel works, incinerator, cement plant, laboratory, power plant, because have relatively high expectations for tightness, therefore and the air door of inapplicable double-disk, so the air door of the single blade type of employing mostly; Yet, because under this environment, the temperature of fluid, pressure are all quite high, control blade rotation and need sizable torsion, and for the torsion in response to this lifting, whole throttle structure intensity certainly will and then improve, otherwise under this abominable operating environment, will make throttle structure damage quite easily.But along with structural strength improves, not only overall weight improves, and pipeline also must corresponding improvement on every side, and the material of throttle structure, manufacture cost also improve thereupon, and it is many to cause industrial competitiveness to descend relatively.
The model utility content
The purpose of this utility model is to provide a kind of two-part three connecting rod valve mechanisms, solves above-mentioned prior art problems, thereby can be issued to the highest airtight requirement at minimum cost.
In order to reach above-mentioned purpose, solution of the present utility model is:
A kind of two-part three connecting rod valve mechanisms wherein, comprising:
One framework, central authorities have a fluid passage;
One blade is installed on this framework, and can cover this fluid passage;
One transmission shaft is arranged on this framework near central position;
One three-link mechanism, connect this transmission shaft and this blade, include a kinematic link, an interlock connecting rod and an auxiliary connecting rod, this interlock connecting rod is installed in this blade summary central position, this kinematic link one end is installed on this transmission shaft, the other end is hubbed on this interlock connecting rod, and the contiguous latter end side that this auxiliary connecting rod one end is hubbed on contiguous this transmission shaft, the other end is hubbed on this kinematic link;
One driving mechanism, be connected on this transmission shaft and outputting power to this transmission shaft; During normality, this blade is shielded in the fluid passage of this framework, when driving by this driving mechanism, when making this transmission shaft rotate a predetermined angle, this rotatingshaft drives this kinematic link swing, and then this interlock connecting rod of interlock, simultaneously, this interlock connecting rod is limited by this auxiliary connecting rod, and it is slightly traversing to drive this blade, makes this fluid passage pressure at both sides balance; When this transmission shaft continues to rotate, drive by this kinematic link and this auxiliary connecting rod, open and make this interlock connecting rod drive this blade.
Further, this auxiliary connecting rod be articulated in this interlock connecting rod the position and with the central shaft conllinear of this fluid passage of this blade and this framework.
Further, this kinematic link is articulated in the position of this interlock connecting rod and is lower than this blade and the central shaft of this fluid passage of this framework.
Further, this auxiliary connecting rod slightly is shorter than this kinematic link.
Further, this framework periphery is a flange.
Further, this predetermined angle is 3 degree.
Further, this transmission shaft passes this framework and is provided with.
Further, this driving mechanism is a motor.
After adopting said structure, the valve mechanism that the utility model provides, it utilizes three-link mechanism to be driven the blade of valve mechanism, can first rough balance fluid passage pressure at both sides, and then row is opened; Concrete its when the driving mechanism action and drive couple axle when rotating a predetermined angle, when driving blade by couple axle sees through three-link mechanism, blade is subjected to the restriction and the interlock of three-link mechanism, with respect to framework transverse translation slightly, and but the pressure in the fluid passage of rough balance blade both sides is avoided directly opening blade and need be expended excessive energy; Simultaneously, transmission shaft is also near the central position setting of blade, and reduces torsion required when opening, and simultaneously, the utility model has also reduced the requirement of overall structure weight and material, and significantly reduces manufacture cost, improves industrial competitiveness.
Description of drawings
Figure 1A is the schematic perspective view of the utility model two-part three connecting rod valve mechanisms;
Figure 1B is the generalized section of the utility model two-part three connecting rod valve mechanisms;
Fig. 2 A～2D is the breakdown action schematic representation of the utility model two-part three connecting rod valve mechanisms;
Fig. 3 is the schematic perspective view of the opening state of the utility model two-part three connecting rod valve mechanisms.
Among the figure:
10 frameworks, 11 fluid passages
111 central shafts, 12 flanges
20 blades, 30 three-link mechanisms
31 kinematic links, 32 interlock connecting rods
33 auxiliary connecting rods, 40 transmission shafts
50 driving mechanisms
Embodiment
In order further to explain the technical solution of the utility model, the utility model is elaborated below by specific embodiment.
The two-part three connecting rod valve mechanisms that the utility model relates to see also shown in Figure 1A and Figure 1B, and it is respectively the schematic perspective view and the generalized section of the utility model two-part three connecting rod valve mechanisms.
The two-part three connecting rod valve mechanisms that the utility model relates to include framework 10, blade 20, three-link mechanism 30, transmission shaft 40 and driving mechanism 50.Framework 10 summarys are cylindrical framework, and central authorities have the fluid passage of running through 11, pass through for fluid, and outer peripheral edge are a flange (flange) 12, can fix on the passage and pipeline that is installed in transmitting fluid by flange 12.Modal means of fixation is the screw locking.
Then, driving mechanism 50 is installed in framework 10 outside sides, and exportable rotating power rotates and it is followed to the transmission shaft 40 that connects thereon, and the most common person is a motor.40 of transmission shafts are connected to blade 20 by three-link mechanism 30, thereby can drive three-link mechanism 30 blade 20 is opened or closed by transmission shaft 40 rotations.At this, open blade 20 for convenience, general three-link mechanism 30 is good to be connected blade 20 central positions.Moreover, also required torsion has substantial connection with opening blade 20 in the position of transmission shaft 40, because of transmission shaft 40 is to utilize the mode of rotating to be driven three-link mechanism 30, and the unlatching of control blade 20, therefore, the distance of the central shaft 111 (that is rotation axis) of transmission shaft 40 and blade 20 is the arm of force of rotation, so, in order to reduce required torsion, therefore, transmission shaft 40 is designed to pass framework 10 is provided with, and it is tried one's best near the central shaft 111 (or central position) of blade 20.
Three-link mechanism 30 includes kinematic link 31, interlock connecting rod 32 and auxiliary connecting rod 33, interlock connecting rod 32 is installed in blade 20 summary central positions, kinematic link 31 1 ends are installed on the transmission shaft 40, the other end is hubbed on the interlock connecting rod 32, and auxiliary connecting rod 33 1 ends are hubbed on the contiguous latter end side that contiguous transmission shaft 40, the other end are hubbed on interlock connecting rod 32.Three bar linkage structures 30 at this point, kinematic link 31 are mainly in order to transferring power, drive interlock connecting rod 32 and give interlock blade 20 and rotate, the angle that auxiliary connecting rod 33 is then opened in order to limit blade 20, therefore, auxiliary connecting rod 33 is shorter than kinematic link 31, reduces the required moment of restriction.
Therefore, by this three-link mechanism 30, can reach two-part control of turning pattern, see also Fig. 2 A to Fig. 2 D, it is the breakdown action schematic representation of the utility model two-part three connecting rod valve mechanisms.
When driving mechanism 50 outputting powers to transmission shaft 40, transmission shaft 40 can and then rotate, and serves as that axle is being followed and rotated and drive kinematic link 31 with an end that is fixed in transmission shaft 40, shown in Fig. 2 A, is specially and rotates counterclockwise.And the other end of kinematic link 31 is articulated on the interlock connecting rod 32, therefore can drive interlock connecting rod 32 and then moves together, yet, the latter end side of interlock connecting rod 32 is articulated with auxiliary connecting rod 33 again, and auxiliary connecting rod 33 is shorter than kinematic link 31, the preferably is articulated in the position of interlock connecting rod 32 for auxiliary connecting rod 33, central shaft 111 conllinear of the fluid passage 11 of summary and blade 20, framework 10, and kinematic link 31 is articulated in the position of interlock connecting rod 32, a little less than the central shaft 111 of the fluid passage 11 of blade 20, framework 10.
Therefore, be subject to auxiliary connecting rod 33 and can make interlock connecting rod 32 to rotate counterclockwise as kinematic link 31, but in a little predetermined angle, move to level off to the mode of transverse translation, this predetermined angle summary is about 3 degree.Therefore, during by initial unlatching, the moving of blade 20 transverse translations, and can make the pressure of 11 both sides, fluid passage give balance.
Then, see also shown in Fig. 2 B, when driving mechanism 50 continues outputting power, and transmission shaft 40 continues to drive down, then blade 20 can begin to be subjected to the drive of interlock connecting rod 32 and rotate, as illustrating among the figure, summary is for rotating the angle about 10 degree, at this moment, also because of blade 20 when the initial drive, transverse translation is slightly arranged, therefore, drive the required torsion of its rotation and then can reduce, simultaneously, the edge of blade 20 can be flashed in the fluid passage 11 of framework 10 have outstanding edge (can fit tightly the place), and can not produce interference for blade 20.
Then blade 20 continues to be subjected to the drive of transmission shaft 40, three-link mechanism 30 and rotates, and continues to open fluid passage 11, shown in Fig. 2 C, is about the state of opening miter angle.To the last whole unlatching presents to blade 20 and to be about horizontal state (180 degree), and passes through fully for fluid, specifically sees also Fig. 2 D and shown in Figure 3.And the action of closing then is above-mentioned reverse operation, does not repeat to be given unnecessary details at this.
The utility model proposes a kind of two-part three connecting rod valve mechanisms, utilize the design of three-link mechanism, when making initial the unlatching, blade can level off to transverse translation and open, but and the pressure difference of balance two side liquids is follow-uply being rotated unlatching, and torsion demand that can be excessive, being inconjunction with the weight, the manufacture cost that make the integral valve door can be reduced, and improves industrial competitiveness.
The foregoing description and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present utility model to its suitable variation or modification of doing.
Claims (8)
1. two-part three connecting rod valve mechanisms is characterized in that, comprising:
One framework, central authorities have a fluid passage;
One blade is installed on this framework, and can cover this fluid passage;
One transmission shaft is arranged on this framework near central position;
One three-link mechanism, connect this transmission shaft and this blade, include a kinematic link, an interlock connecting rod and an auxiliary connecting rod, this interlock connecting rod is installed in this blade summary central position, this kinematic link one end is installed on this transmission shaft, the other end is hubbed on this interlock connecting rod, and the contiguous latter end side that this auxiliary connecting rod one end is hubbed on contiguous this transmission shaft, the other end is hubbed on this kinematic link;
One driving mechanism, be connected on this transmission shaft and outputting power to this transmission shaft; During normality, this blade is shielded in the fluid passage of this framework, when driving by this driving mechanism, when making this transmission shaft rotate a predetermined angle, this rotatingshaft drives this kinematic link swing, and then this interlock connecting rod of interlock, simultaneously, this interlock connecting rod is limited by this auxiliary connecting rod, and it is slightly traversing to drive this blade, makes this fluid passage pressure at both sides balance; When this transmission shaft continues to rotate, drive by this kinematic link and this auxiliary connecting rod, open and make this interlock connecting rod drive this blade.
2. a kind of two-part three connecting rod valve mechanisms as claimed in claim 1 is characterized in that, this auxiliary connecting rod be articulated in this interlock connecting rod the position and with the central shaft conllinear of this fluid passage of this blade and this framework.
3. a kind of two-part three connecting rod valve mechanisms as claimed in claim 2 is characterized in that, this kinematic link is articulated in the position of this interlock connecting rod and is lower than this blade and the central shaft of this fluid passage of this framework.
4. a kind of two-part three connecting rod valve mechanisms as claimed in claim 2 is characterized in that this auxiliary connecting rod slightly is shorter than this kinematic link.
5. a kind of two-part three connecting rod valve mechanisms as claimed in claim 1 is characterized in that this framework periphery is a flange.
6. a kind of two-part three connecting rod valve mechanisms as claimed in claim 1 is characterized in that, this predetermined angle is 3 degree.
7. a kind of two-part three connecting rod valve mechanisms as claimed in claim 1 is characterized in that this transmission shaft passes this framework and is provided with.
8. a kind of two-part three connecting rod valve mechanisms as claimed in claim 1 is characterized in that this driving mechanism is a motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201890830U CN201866267U (en) | 2010-04-26 | 2010-04-26 | Two-segment type three-connecting-rod valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201890830U CN201866267U (en) | 2010-04-26 | 2010-04-26 | Two-segment type three-connecting-rod valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201866267U true CN201866267U (en) | 2011-06-15 |
Family
ID=44137423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201890830U Expired - Lifetime CN201866267U (en) | 2010-04-26 | 2010-04-26 | Two-segment type three-connecting-rod valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201866267U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015595A (en) * | 2016-07-15 | 2016-10-12 | 点夺机电工程江苏有限公司 | Multi-connecting-rod sealed valve with front blade |
| CN106090252A (en) * | 2016-08-10 | 2016-11-09 | 南方风机股份有限公司 | A kind of many bars that can open and close safely drive leafy isolating valve |
-
2010
- 2010-04-26 CN CN2010201890830U patent/CN201866267U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015595A (en) * | 2016-07-15 | 2016-10-12 | 点夺机电工程江苏有限公司 | Multi-connecting-rod sealed valve with front blade |
| CN106090252A (en) * | 2016-08-10 | 2016-11-09 | 南方风机股份有限公司 | A kind of many bars that can open and close safely drive leafy isolating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110615 |
|
| CX01 | Expiry of patent term |