CN1485562A - Gate valve - Google Patents
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- CN1485562A CN1485562A CNA021435383A CN02143538A CN1485562A CN 1485562 A CN1485562 A CN 1485562A CN A021435383 A CNA021435383 A CN A021435383A CN 02143538 A CN02143538 A CN 02143538A CN 1485562 A CN1485562 A CN 1485562A
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Abstract
A pendulum gate valve comprising a valve case including a first opening and an opposite second opening, a valve base encircling the edge of the first opening, a valve disc arranged in the mode of mobile between a full-open position and a full cut-off position, a rotating arm, whose bottom end is mounted on the valve case in a rotatable mode, a rotating arm driving device, and a power transmission unit for transmitting the motion of the pivoted arm to the valve disc.
Description
Technical field
The present invention relates to a kind of gate valve, particularly a kind of pendulum gate valve that is used for the process equipment of processing semiconductor wafer or analog.
Background technique
Be used for process semiconductor wafers, promptly in the process equipment of liquid crystal substrate or analog, having gate valve by one, for example the opening of pendulum gate valve forms vacuum to processing house.Need prevent as much as possible that extraneous foreign matter from entering processing house.
At U. S. Patent 6,089, this gate valve has been described in 537.In this gate valve, valve disc moves up and down, and lifts off a seat simultaneously, and when valve disc is located the location in the face of valve seat, to valve seat valve disc is contacted by the side accentuated push with valve disc with valve seat.
Figure 17 and Figure 18 show traditional pendulum gate valve, and it has the box-like valve casing 1 of a hollow, and its shape of cross section is oval, and defines an inner space.Valve casing 1 comprises a pair of relative circular open 2 and 3, and after gate valve was opened, the workpiece that process and/or process gas just passed through this to opening, enter processing house.
Gate valve comprises a valve disc 5.When gate valve was closed, valve disc 5 contacted with valve seat 4, and described valve seat 4 is arranged in the inner space and around the edge of opening 2.Valve disc 5 is by pivoted arm 6 clampings, and moving between fully open position and full close position under the effect of pivoted arm drive unit 8, and described pivoted arm drive unit 8 is that the center is provided with the pivot on the valve casing 17.
In above-mentioned traditional pendulum gate valve, valve disc 5 top by pivoted arm 6 under the effect of pivoted arm drive unit 8 that is on the full close position is pushed to valve seat 4.Therefore, essential employing power and all very big pivoted arm drive unit 8 of size, and the diameter of pivoted arm 6 is also very big.
Japanese Laid-Open Patent Application 277,876/91 discloses another kind of traditional gate valve.In this gate valve, the valve plate in the face of valve disc is provided, and has imported pressure fluid in the space between valve plate and valve disc so that it is isolated mutually, thereby the reaction force of using the power that imposes on valve plate presses to valve seat with valve disc.
But in this gate valve, must be provided for pressure fluid is introduced the equipment in above-mentioned space, so the size of gate valve becomes big.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of pendulum gate valve that does not have above-mentioned defective.
The present invention can be summarized as follows.
Pendulum gate valve of the present invention comprises: one has the valve casing of inner space and first and second openings relative to each other;
A valve seat that is arranged in the inner space, it is around the edge of first opening;
A valve disc, it is installed with respect to valve casing, makes valve disc to move between fully open position and full close position in the inner space, and valve disc is configured to following form, and promptly when valve disc moved to closed position, valve disc and valve seat meshed and seal first opening;
A pivoted arm, its bottom is rotatably mounted on the valve casing;
A pivoted arm drive unit, it is used for being in primary importance at valve disc, i.e. the fully open position and the second place, that is, valve disc is in the top that drives pivoted arm between the full close position; With
A power transmission that is used for the transmission of movement of pivoted arm is given valve disc.
Power transmission has: first a roller guiding groove that takes shape on the valve disc; A valve disc supporting element that is rotatably mounted to the pivoted arm top, it can move with respect to valve disc; One takes shape on the valve disc supporting element with the second roller guiding groove in the face of the first roller guiding groove; The 3rd a roller guiding groove that takes shape on the valve disc supporting element; A dunnage; One takes shape on the dunnage with the 4th roller guiding groove in the face of the 3rd roller guiding groove; First roller that meshes with the first and second roller guiding grooves; With second roller with the engagement of the third and fourth roller guiding groove.The all downward-sloping respectively extension of the first and second roller guiding grooves to be leaving valve disc, and the third and fourth roller guiding groove is all distinguished downward-sloping extension with near valve disc.
Pendulum gate valve of the present invention comprises: one has the valve casing of inner space and first and second openings relative to each other;
A valve seat that is arranged in the inner space, it is around the edge of first opening;
A valve disc, it is installed with respect to valve casing, makes valve disc to move between fully open position and full close position in the inner space, and valve disc is configured to following form, and promptly when valve disc moved to closed position, valve disc and valve seat meshed and seal first opening;
A pivoted arm, its bottom is rotatably mounted on the valve casing;
A pivoted arm drive unit, it is used in primary importance, and promptly valve disc is in the fully open position and the second place, and promptly valve disc is in the top that drives pivoted arm between the full close position; With
A power transmission that is used for the transmission of movement of pivoted arm is given valve disc.
Power transmission has: first a roller guiding groove that takes shape on the valve disc; A valve disc supporting element that is rotatably mounted to the pivoted arm top, it can move with respect to valve disc; One takes shape on the valve disc supporting element with the second roller guiding groove in the face of the first roller guiding groove; The 3rd a roller guiding groove that takes shape on the valve disc supporting element; A dunnage; One takes shape on the dunnage with the 4th roller guiding groove in the face of the 3rd roller guiding groove; First roller that meshes with the first and second roller guiding grooves; With second roller with the engagement of the third and fourth roller guiding groove.The downward-sloping extension of the first roller guiding groove is to leave valve disc, roughly extend straight down then, the second roller guiding groove is inclined upwardly and extends with close valve disc, roughly extend straight up then, the downward-sloping extension of the 3rd roller guiding groove is with close valve disc, roughly extend straight down then, the 4th roller guiding groove is inclined upwardly and extends to leave valve disc, roughly extends straight up then.
Pendulum gate valve of the present invention comprises: one has the valve casing of inner space and first and second openings relative to each other;
A valve seat that is arranged in the inner space, it is around the edge of first opening;
A valve disc, it is installed with respect to valve casing, makes valve disc to move between fully open position and full close position in the inner space, and valve disc is configured to following form, and promptly when valve disc moved to closed position, valve disc and valve seat meshed and seal first opening;
A pivoted arm, its bottom is rotatably mounted on the valve casing;
A pivoted arm drive unit, it is used in primary importance, and promptly valve disc is in the fully open position and the second place, and promptly valve disc is in the top that drives pivoted arm between the full close position; With
A power transmission that is used for the transmission of movement of pivoted arm is given valve disc.
Power transmission has: a pair of clamp holder of facing and having a space mutually therebetween, and they are installed in the back side of the valve disc relative with valve seat; A first roller guiding groove that takes shape on each opposing side of clamp holder; A valve disc supporting element that is rotatably mounted to the pivoted arm top, it can move with respect to valve disc; One takes shape on the valve disc supporting element with the second roller guiding groove in the face of the first roller guiding groove; The 3rd a roller guiding groove that takes shape on the valve disc supporting element; A dunnage; One takes shape on the dunnage with the 4th roller guiding groove in the face of the 3rd roller guiding groove; First roller and second roller that meshes with the third and fourth roller guiding groove that meshes with the first and second roller guiding grooves.The all downward-sloping respectively extension of the first and second roller guiding grooves to be leaving valve disc, and the third and fourth roller guiding groove is all distinguished downward-sloping extension with near valve disc.
Pendulum gate valve of the present invention comprises: one has the valve casing of inner space and first and second openings relative to each other;
A valve seat that is arranged in the inner space, it is around the edge of first opening;
A valve disc, it is installed with respect to valve casing, makes valve disc to move between fully open position and full close position in the inner space, and valve disc is configured to following form, and promptly when valve disc moved to closed position, valve disc and valve seat meshed and seal first opening;
A pivoted arm, its bottom is rotatably mounted on the valve casing;
A pivoted arm drive unit, it is used in primary importance, and promptly valve disc is in the fully open position and the second place, and promptly valve disc is in the top that drives pivoted arm between the full close position; With
A power transmission that is used for the transmission of movement of pivoted arm is given valve disc.
Power transmission has: a pair of clamp holder of facing and having a space mutually therebetween, and they are installed in the back side of the valve disc relative with valve seat; A first roller guiding groove that takes shape on each opposing side of clamp holder; A valve disc supporting element that is rotatably mounted to the pivoted arm top, it can move with respect to valve disc; One takes shape on the valve disc supporting element with the second roller guiding groove in the face of the first roller guiding groove; The 3rd a roller guiding groove that takes shape on the valve disc supporting element; A dunnage; One takes shape on the dunnage with the 4th roller guiding groove in the face of the 3rd roller guiding groove; First roller and second roller that meshes with the third and fourth roller guiding groove that meshes with the first and second roller guiding grooves.The downward-sloping extension of the first roller guiding groove is to leave valve disc, roughly extend straight down then, the second roller guiding groove is inclined upwardly and extends with close valve disc, roughly extend straight up then, the downward-sloping extension of the 3rd roller guiding groove is with close valve disc, roughly extend straight down then, the 4th roller guiding groove is inclined upwardly and extends to leave valve disc, roughly extends straight up then.
Pendulum gate valve has a member, is used for flexibly preventing that dunnage from moving with respect to valve disc on the movement direction of pivoted arm.
Pendulum gate valve has a member, is used for flexibly preventing that valve disc from moving with respect to the valve disc supporting element on the movement direction of pivoted arm.
Pendulum gate valve has a stopper that stretches out from the lower end of valve disc downwards.
Other purposes of the present invention and advantage will be from below in conjunction with more clearly embodying the accompanying drawing description of preferred embodiments.
Description of drawings
Fig. 1 is under the state before gate valve is closed, according to the longitudinal cross-section front elevation of pendulum gate valve of the present invention;
Fig. 2 is the cross-sectional view of cutting open along X-X among Fig. 1;
Fig. 3 is the cross-sectional view of cutting open along Y-Y among Fig. 1;
Fig. 4 is the perspective view according to the power transmission of pendulum gate valve of the present invention;
Fig. 5 is the perspective view according to the power transmission of pendulum gate valve of the present invention;
Fig. 6 is the side view according to the first roller guiding groove of pendulum gate valve of the present invention;
Fig. 7 is the side view according to the second and the 4th roller guiding groove of pendulum gate valve of the present invention;
Fig. 8 is the perspective view according to the power transmission of pendulum gate valve of the present invention;
Fig. 9 is the perspective view according to the power transmission of pendulum gate valve of the present invention;
Figure 10 is the side view according to the 3rd roller guiding groove of pendulum gate valve of the present invention;
Figure 11 is under the state before gate valve just will be closed, according to the longitudinal cross-section front elevation of pendulum gate valve of the present invention;
Figure 12 is the cross-sectional view of cutting open along X-X among Figure 11;
Figure 13 is the cross-sectional view of cutting open along Y-Y among Figure 11;
Figure 14 is under the lucky closing state of gate valve, according to the longitudinal cross-section front elevation of pendulum gate valve of the present invention;
Figure 15 is the cross-sectional view of cutting open along X-X among Figure 14;
Figure 16 is the cross-sectional view of cutting open along Y-Y among Figure 14;
Figure 17 is the perspective view of the power transmission of traditional pendulum gate valve;
Figure 18 is the part longitudinal cross-section side view of traditional gate valve.
Specifically execute real mode
As shown in Figure 1 to Figure 3, comprise according to pendulum gate valve of the present invention: the box-like valve casing 1 of a hollow, its shape of cross section are oval, and define an inner space; A pair of relative circular open 2 and 3; A valve seat 4 that is arranged in the inner space of valve casing 1, it is around the edge of opening 2; A valve disc 5, when valve disc 5 was in the closed position, it contacted with valve seat 4; A pivoted arm 6, its top links to each other with valve disc 5, and its bottom links to each other with pivot 7 on the valve casing 1 rotationally; A pivoted arm drive unit 8, it is used at fully open position (as shown in Figure 1) and drives valve disc 5 fully between the closed position (as shown in figure 14); With one be used to make valve disc 5 to the power transmission 9 that moves forward to valve seat 4.
To shown in Figure 9, power transmission 9 comprises as Fig. 1: two pairs mutually in the face of and have the clamp holders 10 in space therebetween, they are installed on the back side 5a of the valve disc 5 relative with valve seat 4; Two pairs first roller guiding grooves 11, they take shape on the apparent surface of described clamp holder 10; Two first rollers 12, the two ends of each first roller 12 all insert described each in the first roller guiding groove 11; A valve supporting element 13, it is inserted in each between the clamp holder 10 and be rotatably mounted on the described pivoted arm 6; With two second roller guiding grooves 14, it passes described valve disc supporting element 13, is respectively applied for to hold described first roller 12 betwixt.
Take shape in the first roller guiding groove, 11 downward-sloping extensions on the clamp holder 10 leaving valve disc 5, and then approximate vertical extends downwards, as Fig. 3 and shown in Figure 6.The shape of the described first roller guiding groove 11 is the lengthwise hole shape, and its width diameter with first roller 12 basically is identical.Take shape in the second roller guiding groove 14 on the valve disc supporting element 13 and be inclined upwardly and extend with near valve disc 5, then in the position that is equivalent to the described first roller guiding groove 11 again approximate vertical extend upward, as Fig. 2 and shown in Figure 7.The shape of the described second roller guiding groove 14 is the lengthwise hole shape, and its width diameter with first roller 12 basically is identical.
As Fig. 2 and shown in Figure 15, when described valve disc supporting element 13 when described clamp holder 10 moves up and down, described valve disc 5 with respect to valve disc supporting element 13 near and lift off a seat 4.
In addition, in Fig. 3, Fig. 5, Fig. 8 and the present invention shown in Figure 9, power transmission 9 comprises: a pair of dunnage 15 that is arranged on valve disc supporting element 13 both sides; Two are inserted the connecting rod 16 so that they are linked together between the described paired dunnage 13; The 3rd roller guiding groove 17 on the two pairs of opposing sides that take shape in described dunnage 15; Two second rollers 18, the two ends of each second roller 18 all insert described each to the 3rd roller guiding groove 17; Two the 4th roller guiding grooves 19 that pass described valve disc supporting element 13 respectively and be used for holding betwixt described roller 18; Two pairs are used to connect each the described clamp holder 10 and the leaf spring 20 of each corresponding described dunnage 15 with it; An extension spring 21, the one end is fixed on the top of described pivoted arm 6, and the other end is fixed on the described valve disc 5, always to urge pivoted arm 6 in one direction with respect to valve disc 5; With a stopper 22 of making forms such as leaf spring, it stretches out from the lower ends downward of described valve disc 5.
Described leaf spring 20 has following effect, promptly prevents the motion relative to each other on the moving direction of pivoted arm 6 of clamp holder 10 and dunnage 15, but can make relative movement on the moving direction of their pivoted arms shown in the arrow 6 in perpendicular to Fig. 9.
Take shape in the 3rd roller guiding groove 17 downward-sloping extensions on the dunnage 15 with near valve disc 5, and then approximate vertical extends downwards, as Fig. 3 and shown in Figure 10.The shape of described the 3rd roller guiding groove 17 is the lengthwise hole shape, and its width diameter with second roller 18 basically is identical.Take shape in the 4th roller guiding groove 19 on the valve disc supporting element 13 and be inclined upwardly and extend to leave valve disc 5, then in the position that is equivalent to described the 3rd roller guiding groove 17 again approximate vertical extend upward, as Fig. 2 and shown in Figure 7.The shape of described the 4th roller guiding groove 19 is the lengthwise hole shape, and its width diameter with second roller 18 basically is identical.
When described valve disc supporting element 13 as Fig. 2 and shown in Figure 15, when described clamp holder 10 and dunnage 15 moved up and down, described dunnage 15 was left with respect to valve disc 5 and near the opening 3 of valve casing 1.
Structure according to pendulum gate valve of the present invention is as described above, therefore, when pivoted arm drive unit 8 moves so that the direction in by Fig. 9 shown in the arrow makes pivoted arm 6 from position shown in Figure 1, it is the position that opening 2 and 3 is all opened, swing to position shown in Figure 11, when being valve disc 5 in the face of the position of opening 2, the stopper 22 that stretches out from the lower end of valve disc 5 contacts (as shown in figure 11) with the internal surface of valve casing 1, and the motion of valve disc 5 stops.When pivoted arm 6 continues press when the direction shown in the arrow is moved among Fig. 9, be fixed on valve disc supporting element 13 on the pivoted arm 6 also overcome extension spring 21 pulling force and with respect to valve disc 5 motions (as Figure 14 to shown in Figure 16), the roller of winning is rotated along the first roller guiding groove 11 to be moved, and finally arrive the lower vertical part (as shown in figure 16) of the first roller guiding groove 11, the roller 12 of winning is rotated along the second roller guiding groove 14 to be moved, and finally arrive the upper vertical part of the second roller guiding groove 14, as shown in figure 15.
Simultaneously, pass second roller 18 of the 4th roller guiding groove 19 of valve disc supporting element 13, the 3rd roller guiding groove 17 along dunnage 15 rotates mobile, and finally arrive the lower vertical part (as shown in figure 16) of the 3rd roller guiding groove 17, simultaneously, second roller 18 rotates along the 4th roller guiding groove 19 and moves, and finally arrives the upper vertical part of the 4th roller guiding groove 19 of valve disc supporting element 13, as shown in figure 15.
The result is, dunnage 15 is by very big defeating to the valve casing 1 around opening 3 edges, and the reaction force of the valve casing 1 at this place acts on the valve disc 5, and valve disc 5 effectively is pressed on the valve seat 4.
In this case, even pivoted arm drive unit 8 cuts off the energy so that pivoted arm 6 stop motions, valve disc 5 still can remain on the valve seat 4 with the pressure contact condition.
Under the situation that will open gate valve, for valve disc 5 is moved to open position from closed position, starting pivoted arm drive unit 8, make valve disc supporting element 13 at first under the elastic force effect of extension spring 21, move with respect to clamp holder 10 and dunnage 15, and make first and second rollers 12 and 18 with valve disc supporting element 13, rotate along the first and the 3rd roller guiding groove 11 and 17 respectively simultaneously and move.The result is, valve disc 5 lifts off a seat 4, and dunnage 15 is left opening 3.The continuation of pivoted arm 6 is moved and is caused valve disc 5 motions, makes opening 2 and 3 fully open.
In another embodiment of the present invention, clamp holder 10 and valve disc 5 are made an integral body.
In another embodiment of the present invention, each first and second roller guiding groove 11 and 14 all downward-sloping extensions to be leaving valve disc 5, and each third and fourth roller guiding groove 17 and 19 all downward-sloping extensions are with near valve disc 5.
The invention effect
The present invention compares with traditional gate valve has very important advantage.For example, pendulum gate valve of the present invention has adopted the power transmission 9 with two rollers 12 and 18 and four roller guiding grooves 11,14,17 and 19, makes that valve disc 5 can be with very large power by being pressed on the valve seat 4.In addition, roller 12 and 18 rotates when moving in roller guiding groove 11,14,17 and 19, and does not need to use any oiling agent, and is feasible opposite with traditional gate valve, can prevent because the issuable foreign matter of roller fricting movement.Valve disc 5 is urged to valve seat 4 by the reaction force of dunnage 15, makes that the structure of pivoted arm drive unit 8 and pivoted arm 6 is more simple and size is littler.
In addition, under the continuous swing effect of pivoted arm 6, valve disc 5 moves and valve disc 5 is pressed to valve seat 4 towards opening, and gate valve can be closed like this, if make gate valve as liquid flow control valve, can carry out continuous liquid current control.
Although illustrate and described the present invention especially with reference to preferred embodiment here, for a person skilled in the art, should be understood that, do not breaking away under the spirit and scope of the present invention situation that claims limit, can make improvement on many forms and the details the present invention.
Claims (7)
1. pendulum gate valve, comprising: one comprises the valve casing of inner space and first and second openings relative to each other;
A valve seat that is arranged in the inner space, this seat ring is around the edge of first opening;
A valve disc, it is installed with respect to valve casing, makes valve disc to move between fully open position and full close position in the inner space, and valve disc is configured to following form, and promptly when valve disc moved to closed position, valve disc and valve seat meshed and seal first opening;
A pivoted arm, its bottom is rotatably mounted on the valve casing;
A pivoted arm drive unit, it is used in primary importance, and promptly valve disc is in the fully open position and the second place, and promptly valve disc is in the top that drives pivoted arm between the full close position; With
A power transmission that is used for the transmission of movement of pivoted arm is given valve disc;
Power transmission has: first a roller guiding groove that takes shape on the valve disc; A valve disc supporting element that is rotatably mounted to the pivoted arm top, it can move with respect to valve disc; One takes shape on the valve disc supporting element with the second roller guiding groove in the face of the first roller guiding groove; The 3rd a roller guiding groove that takes shape on the valve disc supporting element; A dunnage; One takes shape on the dunnage with the 4th roller guiding groove in the face of the 3rd roller guiding groove; First roller that meshes with the first and second roller guiding grooves; With second roller with third and fourth roller guiding groove engagement, all downward-sloping respectively extension of the first and second roller guiding grooves to be leaving valve disc, and all downward-sloping extension of the third and fourth roller guiding groove is with near valve disc.
2. pendulum gate valve, comprising: one comprises the valve casing of inner space and first and second openings relative to each other;
A valve seat that is arranged in the inner space, this seat ring is around the edge of first opening;
A valve disc, it is installed with respect to valve casing, makes valve disc to move between fully open position and full close position in the inner space, and valve disc is configured to following form, and promptly when valve disc moved to closed position, valve disc and valve seat meshed and seal first opening;
A pivoted arm, its bottom is rotatably mounted on the valve casing;
A pivoted arm drive unit, it is used in primary importance, and promptly valve disc is in the fully open position and the second place, and promptly valve disc is in the top that drives pivoted arm between the full close position; With
A power transmission that is used for the transmission of movement of pivoted arm is given valve disc;
Power transmission has: first a roller guiding groove that takes shape on the valve disc; A valve disc supporting element that is rotatably mounted to the pivoted arm top, it can move with respect to valve disc; One takes shape on the valve disc supporting element with the second roller guiding groove in the face of the first roller guiding groove; The 3rd a roller guiding groove that takes shape on the valve disc supporting element; A dunnage; One takes shape on the dunnage with the 4th roller guiding groove in the face of the 3rd roller guiding groove; First roller that meshes with the first and second roller guiding grooves; With second roller with the engagement of the third and fourth roller guiding groove, the downward-sloping extension of the first roller guiding groove is to leave valve disc, roughly extend straight down then, the second roller guiding groove is inclined upwardly and extends with close valve disc, roughly extend straight up then, the downward-sloping extension of the 3rd roller guiding groove is roughly extended then straight down with near valve disc, the 4th roller guiding groove is inclined upwardly and extends to leave valve disc, roughly extends straight up then.
3. pendulum gate valve, comprising: one has the valve casing of inner space and first and second openings relative to each other;
A valve seat that is arranged in the inner space, it is around the edge of first opening;
A valve disc, it is installed with respect to valve casing, makes valve disc to move between fully open position and full close position in the inner space, and valve disc is configured to following form, and promptly when valve disc moved to closed position, valve disc and valve seat meshed and seal first opening;
A pivoted arm, its bottom is rotatably mounted on the valve casing;
A pivoted arm drive unit, it is used in primary importance, and promptly valve disc is in the fully open position and the second place, and promptly valve disc is in the top that drives pivoted arm between the full close position; With
A power transmission that is used for the transmission of movement of pivoted arm is given valve disc;
Power transmission has: a pair of clamp holder of facing and having a space mutually therebetween, and they are installed in the back side of the valve disc relative with valve seat; A first roller guiding groove that takes shape on each opposing side of clamp holder; A valve disc supporting element that is rotatably mounted to the pivoted arm top, it can move with respect to valve disc; One takes shape on the valve disc supporting element with the second roller guiding groove in the face of the first roller guiding groove; The 3rd a roller guiding groove that takes shape on the valve disc supporting element; A dunnage; One takes shape on the dunnage with the 4th roller guiding groove in the face of the 3rd roller guiding groove; First roller that meshes with the first and second roller guiding grooves; With second roller with the engagement of the third and fourth roller guiding groove; The all downward-sloping respectively extension of the first and second roller guiding grooves to be leaving valve disc, and the third and fourth roller guiding groove is all distinguished downward-sloping extension with near valve disc.
4. pendulum gate valve, comprising: one has the valve casing of inner space and first and second openings relative to each other;
A valve seat that is arranged in the inner space, it is around the edge of first opening;
A valve disc, it is installed with respect to valve casing, makes valve disc to move between fully open position and full close position in the inner space, and valve disc is configured to following form, and promptly when valve disc moved to closed position, valve disc and valve seat meshed and seal first opening;
A pivoted arm, its bottom is rotatably mounted on the valve casing;
A pivoted arm drive unit, it is used in primary importance, and promptly valve disc is in the fully open position and the second place, and promptly valve disc is in the top that drives pivoted arm between the full close position; With
A power transmission that is used for the transmission of movement of pivoted arm is given valve disc;
Power transmission has: a pair of clamp holder of facing and having a space mutually therebetween, and they are installed in the back side with valve seat valve disc mutually; A first roller guiding groove that takes shape on each clamp holder opposing side; A valve disc supporting element that is rotatably mounted to the pivoted arm top, it can move with respect to valve disc; One takes shape on the valve disc supporting element with the second roller guiding groove in the face of the first roller guiding groove; The 3rd a roller guiding groove that takes shape on the valve disc supporting element; A dunnage; One takes shape on the dunnage with the 4th roller guiding groove in the face of the 3rd roller guiding groove; First roller that meshes with the first and second roller guiding grooves; With second roller with the engagement of the third and fourth roller guiding groove, the downward-sloping extension of the first roller guiding groove is to leave valve disc, roughly extend straight down then, the second roller guiding groove is inclined upwardly and extends with close valve disc, roughly extend straight up then, the downward-sloping extension of the 3rd roller guiding groove is roughly extended then straight down with near valve disc, the 4th roller guiding groove is inclined upwardly and extends to leave valve disc, roughly extends straight up then.
5. according to claim 1,2,3 or 4 described pendulum gate valve, also comprise a member, this member is used for flexibly preventing that dunnage from moving with respect to valve disc on the movement direction of pivoted arm.
6. according to claim 1,2,3,4 or 5 described pendulum gate valve, also comprise a member, this member is used for flexibly preventing that valve disc from moving with respect to the valve disc supporting element on the movement direction of pivoted arm.
7. according to claim 1,2,3,4,5 or 6 described pendulum gate valve, also comprise a stopper that stretches out from the lower ends downward of valve disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02143538 CN1285847C (en) | 2002-09-27 | 2002-09-27 | Gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02143538 CN1285847C (en) | 2002-09-27 | 2002-09-27 | Gate valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1485562A true CN1485562A (en) | 2004-03-31 |
| CN1285847C CN1285847C (en) | 2006-11-22 |
Family
ID=34148276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02143538 Expired - Lifetime CN1285847C (en) | 2002-09-27 | 2002-09-27 | Gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1285847C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101849130A (en) * | 2007-11-02 | 2010-09-29 | 株式会社V泰克斯 | Vacuum gate valve, and gate opening/closing method using the gate valve |
| CN102155546A (en) * | 2011-05-17 | 2011-08-17 | 陈建君 | Swing type gate valve |
| CN102226471A (en) * | 2011-04-14 | 2011-10-26 | 陈建君 | Pendulum ceramic valve |
| CN101109451B (en) * | 2006-07-18 | 2012-02-22 | Vat控股公司 | Shuttle valve having two drives |
| CN102713379A (en) * | 2010-01-25 | 2012-10-03 | Vat控股公司 | Vacuum valve |
-
2002
- 2002-09-27 CN CN 02143538 patent/CN1285847C/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109451B (en) * | 2006-07-18 | 2012-02-22 | Vat控股公司 | Shuttle valve having two drives |
| CN101849130A (en) * | 2007-11-02 | 2010-09-29 | 株式会社V泰克斯 | Vacuum gate valve, and gate opening/closing method using the gate valve |
| CN102713379A (en) * | 2010-01-25 | 2012-10-03 | Vat控股公司 | Vacuum valve |
| CN102713379B (en) * | 2010-01-25 | 2014-03-26 | Vat控股公司 | Vacuum valve |
| CN102226471A (en) * | 2011-04-14 | 2011-10-26 | 陈建君 | Pendulum ceramic valve |
| CN102155546A (en) * | 2011-05-17 | 2011-08-17 | 陈建君 | Swing type gate valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1285847C (en) | 2006-11-22 |
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