CN102748493A - Separated-type oscillatory vacuum insertion board and valve core - Google Patents
Separated-type oscillatory vacuum insertion board and valve core Download PDFInfo
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- CN102748493A CN102748493A CN2012102688110A CN201210268811A CN102748493A CN 102748493 A CN102748493 A CN 102748493A CN 2012102688110 A CN2012102688110 A CN 2012102688110A CN 201210268811 A CN201210268811 A CN 201210268811A CN 102748493 A CN102748493 A CN 102748493A
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Abstract
The invention relates to a separated-type oscillatory vacuum insertion board and a valve core; a valve can be closed or opened through an oscillatory method so that a whole length of the valve can be shortened correspondingly to a drift diameter; a valve body comprises a valve body shell; the valve body shell comprises a valve body valve cavity and a valve hole; the valve body shell also comprises a shaft hole and a shaft sleeve on the outer side of the shaft hole; a valve cover can be detachably connected with the valve body in a sealing manner; a transmission shaft perforates the shaft sleeve and the shaft hole on the valve body and is sealed with the shaft sleeve through a shaft sealing component in a free rotation manner; a valve core is located in a valve cavity and comprises a support board, a valve board and a ball body frame; a rotary ball body is arranged on the ball body frame; the ball body frame is arranged between the support board and the valve board; the support board can be movably connected with the valve board correspondingly to an axial direction; the support board and the valve board comprises ball pits correspondingly to the ball body; the ball body frame is connected with an oscillatory rod which is extended outwardly, so that the oscillatory rod can drives the ball body frame to rotate, thereby enabling the ball body to be crawled out of the ball pits; or the oscillatory rod can drives the ball body frame to rotate, thereby enabling the ball body to enter the ball pits.
Description
Technical field
The present invention relates to vacuum valve, be suitable for all kinds of vacuum systems and use, be used for cutting off or connecting the usefulness of gas circuit.
Background technique
What use on present most of equipment all is the straight-line push-pull valve of rectangular, and its length is 3 times of latus rectum, and it is using size bigger than normal on some new technologies, the new equipment now, unshapeliness, not attractive in appearance.
Summary of the invention
The object of the present invention is to provide a kind of split type swing vacuum push-pull valve and spool, close or open valve through swing, so that the relative latus rectum of valve entire length can shorten.
For realizing the split type swing vacuum push-pull valve of said purpose, be characterized in, comprise valve body, comprise the valve body housing, the valve body housing has valve body valve pocket and valve opening, and the valve body housing also has the axle sleeve in the axis hole and the axis hole outside; Valve gap removably is tightly connected with valve body, has the valve gap valve pocket, and valve gap valve pocket and valve body valve pocket communicate and constitute the whole valve valve pocket of push-pull valve; Transmission shaft passes axle sleeve and axis hole on the valve body, and and axle sleeve between through gland seal assembly sealing, free to rotate, its outer end is used to connect drive unit; Spool is arranged in the valve valve pocket, comprises dunnage, valve plate and spheroid frame; Place rotating spheroid on the spheroid frame, the spheroid frame is between dunnage and valve plate, and dunnage can be connected with valve plate with moving to axial; The ball hole that corresponding spheroid is arranged in dunnage, the valve plate; The spheroid frame is connected with outward extending fork, makes spheroid from the ball hole, climb out of said ball hole so that fork can drive the rotation of spheroid frame, and then valve plate, dunnage are strutted; Perhaps make fork can drive the spheroid frame and rotate spheroid is got in the said ball hole, so that valve plate, dunnage draw in; Dunnage, valve plate with valve body housing opposite flank on seal ring is arranged, spool can enter into the valve gap valve pocket.
Described split type swing vacuum push-pull valve, its further characteristics be, the dunnage side of spheroid frame is connected with dunnage through latch plate, and the valve plate side of spheroid frame is passed through latch plate and is connected with valve plate, and the spheroid frame by the latch plate clamping of dunnage side and valve plate side.
Described split type swing vacuum push-pull valve, its further characteristics are that spheroid is put up annular, in its ball hole upper and lower two spheroids is arranged.
Described split type swing vacuum push-pull valve, its further characteristics be, a side of valve gap and valve body is connected through hinging structure, and remaining part connects through hook screw.
Described split type swing vacuum push-pull valve, its further characteristics are that by the spring assembly connection, said spring assembly is applied with the elastic force that draws dunnage and valve plate between the dunnage of spool and the valve plate.
Described split type swing vacuum push-pull valve; Its further characteristics are; Said spring assembly comprises stage clip, stage clip pin and compression spring sleeve; Compression spring sleeve is on the stage clip pin and be arranged in compression spring sleeve, and stage clip is compressed between the two the protuberance of compression spring sleeve and stage clip pin, and the side in compression spring sleeve and the stage clip pin is fixed on the dunnage and the opposing party is fixed on the valve plate.
Described split type swing vacuum push-pull valve, its further characteristics are that said gland seal assembly comprises sealing seat, gland nut; And the seal ring assembly of forming by a plurality of lining rings that are staggeredly placed and a plurality of seal ring, sealing seat becomes sleeve shape, and its sealing is built in the said axle sleeve; Be formed with the shaft shoulder on the inwall of sealing seat; Place the sealing coil assembly on its shaft shoulder, gland nut inserts the upper end of sealing seat, and is threaded with sealing seat; The upper end of the inner pressure seal ring assembly of gland nut is so that seal ring is extruded and seals the outside of transmission shaft.
For realizing said purpose spool, be characterized in, comprise dunnage, valve plate and spheroid frame; Place rotating spheroid on the spheroid frame, the spheroid frame is between dunnage and valve plate, and dunnage can be connected with valve plate with moving to axial; The ball hole of corresponding spheroid is arranged in dunnage, the valve plate, and the spheroid frame is connected with outward extending fork, makes spheroid from the ball hole, climb out of said ball hole so that fork can drive the rotation of spheroid frame; And then valve plate, dunnage are strutted; Perhaps make fork can drive the spheroid frame and rotate spheroid is got in the said ball hole, so that valve plate, dunnage draw in, said dunnage, valve plate are metal material.
Described spool, its further characteristics be, the dunnage side of spheroid frame is connected with dunnage through latch plate, and the valve plate side of spheroid frame is passed through latch plate and is connected with valve plate, and the spheroid frame by the latch plate clamping of dunnage side and valve plate side.
Described spool; Its further characteristics are that by the spring assembly connection, said spring assembly is applied with the elastic force that draws dunnage and valve plate between the dunnage of spool and the valve plate; Said spring assembly comprises stage clip, stage clip pin and compression spring sleeve; Compression spring sleeve is on the stage clip pin and be arranged in compression spring sleeve, and stage clip is compressed between the two the protuberance of compression spring sleeve and stage clip pin, and the side in compression spring sleeve and the stage clip pin is fixed on the dunnage and the opposing party is fixed on the valve plate.
When driver transmitted torque to transmission shaft, transmission shaft rotated, and transmission shaft drives the fork swing, and fork drives the steel ball rack activity.If valve is in closed condition, the frictional force between dunnage, valve plate and the valve body housing is bigger, and steel ball rack only can drive the steel ball activity, so that steel ball climbs into during ball cheats, thereby makes valve open; If valve is in open mode, fork drives steel ball rack, and steel ball rack drives steel ball, from the ball hole, climbs out of, and backs down valve plate and dunnage, thus throttle down, thus close or open valve through swing, so that the relative latus rectum of valve entire length can shorten.
Description of drawings
Fig. 1 is the plan view of split type swing vacuum push-pull valve pneumatic in the embodiment of the invention.
Fig. 2 is the plan view of split type swing vacuum push-pull valve pneumatic in the embodiment of the invention.
Fig. 3 is the plan view of the valve body cut open along A-A line among Fig. 4.
Fig. 4 is the plan view of valve body.
Fig. 5 is the left view of valve body.
Fig. 6 is the plan view of the valve gap cut open along B-B line among Fig. 7.
Fig. 7 is the plan view of valve gap.
Fig. 8 is the right elevation of valve gap.
The plan view of the spool that Fig. 9 cuts open along C-C line among Figure 10.
Figure 10 is the plan view of spool.
Figure 11 is the structural representation of gland seal assembly.
Embodiment
Fig. 1 to Figure 11 shows embodiments of the invention 1, describes with regard to each embodiment's composition, working principle respectively below.
As depicted in figs. 1 and 2, split type swing vacuum push-pull valve comprises spool 1, valve body 2, valve gap 3 and drive unit 4.
Extremely shown in Figure 5 like Fig. 3; Valve body 2 comprises valve body housing 21; Form valve pocket 210 in the valve body housing 21, valve opening 214 upper and lower sides of valve body housing 21 have adpting flange 212,213 respectively, and adpting flange 212,213 is used for being connected respectively with user pipe flange or vessel flange up and down.There is opening 217 in the left side of valve body housing 21, and opening 217 places connect square flange 215, the square flange on the valve gap of stating after this square flange 215 is used to connect 3.The front side of valve body housing 21 is axis hole 218 also, and the outside up and down of axis hole 218 connects flanged (FLGD) axle sleeve 216, the transmission shaft that axle sleeve 216 is stated after being used to connect.
Extremely shown in Figure 8 like Fig. 6; Valve gap 3 comprises valve gap housing 31; Form valve pocket 310 in the valve gap housing 31; There is square flange 32 on the right side of valve gap housing 31, and its square flange 215 with valve body housing 21 left sides is connected, so that the valve pocket 310 of the valve pocket 210 of valve body housing 21 and valve gap housing 31 constitutes the valve pocket of whole valve together.The receiving cavity of spool 1 when the valve pocket 310 of valve gap 3 also is used as valve wide open.
The valve opening 214 of the upper and lower side of the valve body housing 21 of valve body 2 will by after the spool 1 stated seal or open.The opening 311 on the opening 217 in valve body housing 21 left sides and valve gap housing 31 right sides was docking together through being connected of square flange 215,32, and is as shown in Figure 1, square flange 215, O-ring seals 37 is set between 32 seals.The axis hole 218 of the upper and lower side of valve body housing 21 and after between the transmission shaft stated will through after the gland seal assembly stated seal.In case after therefore valve opening 214 was sealed by spool 1, whole valve pocket just was in air-tight state, after valve opening 214 was opened by spool 1, valve was communicated with user pipe and equipment, and the valve pocket except that valve opening is in sealing state, can guarantee that the gas circuit and the external world cut off.
Get back to Fig. 1 and Fig. 4; The dismounting of spool 1 for ease or fixing also is formed with joint 24 on valve body, joint 24 comprises the through hole 244 that on valve body housing 21, forms of contiguous axis hole 218; Borehole jack 245 (borehole jack 245 can be made of one with valve body housing 21 or be integrally formed) in the welding of through hole 244 outsides; At the pressing plate 242 and gland 241 that the end of borehole jack 245 is provided with, pressing plate 242 the end of borehole jack 245 and and the end of borehole jack 245 between folder establish seal ring 243, gland 241 is inboard to be connected with borehole jack 245 outside screw; Pressing plate 242 is positioned at gland 241 inboards; When gland 241 is fastened on 245 last times of borehole jack, it is tight that pressing plate 242 just is glanded 241 lids, thereby guarantee the sealing at joint 24 places.
To shown in Figure 8, valve gap 3 is connected through square flange 215,32 with valve body 2 like Fig. 2, and a side of square flange 215,32 links together through hinging structure 7; Remaining part connects through bolt, nut; In preferred embodiment of the present invention, remaining part is connected through hook screw 8, and hook screw 8 need not on two flanges, to form screw; Save material, and quick-detach soon.Valve gap is connected with valve body with hook screw through hinge, takes the extraction spool easily apart and clean and change " O " shape seal ring, need valve just not pulled down from equipment and can finish all maintainings, very convenient.
Like Fig. 9 and shown in Figure 10, spool 1 comprises valve plate (lower valve plate) 11, dunnage (going up valve plate) 12, steel ball 13, latch plate 14 and steel ball rack 17.Steel ball rack 17 is ring; Circumferentially have a plurality of ball holes 171 of receiving; Respectively receive and be placed with two steel balls 13 up and down in the ball hole 171, the steel ball 13 outstanding upper edges of receiving ball hole 171 of top contact with the lower surface of dunnage 12, and the steel ball 13 of below is given prominence to and received the lower edges in ball hole 171 and contact with the upper surface of valve plate 11; Among the embodiment as shown in Figure 9, have 12 in the steel ball rack 17 and receive the ball hole.Steel ball rack 17 is fixedly clamped by two groups of latch plates 14; Each is organized latch plate 14 and comprises the upper spring plate 141 that is positioned at steel ball rack 17 upsides, the lower spring plate 142 that is positioned at steel ball rack 17 downsides; The respective end of upper and lower latch plate 141,142 through fastening piece for example the fill block 148 established of bolt and nut component 149 and the two folder be fixedly connected; And steel ball rack 17 is clamped in wherein; The middle part of upper spring plate 141 is fixedly connected through link 143 with dunnage 12, and the middle part of lower spring plate 142 is fixedly connected through link 144 with valve plate 11.As shown in Figure 9, steel ball rack 17 connects radially outstanding fork 16, fork 16 be used for after the transmission shaft stated be connected.Can connect roller on the fork 16, at the side connection wheel carrier 151 in contrast to fork 16 of steel ball rack 17, the each side connection roller 15 of wheel carrier 151, the rolling path of each roller 15 are the center with the oscillation center of fork 16 all.
Continuation is with reference to Fig. 9 and Figure 10, and the upper surface of valve plate 11 has the ball hole 138 of the steel ball 13 in the corresponding steel ball rack 17 of a circle, and the lower surface of dunnage 12 also has the ball hole 138 of the steel ball in the corresponding steel ball rack 17 of a circle.Position shown in Figure 9 is the position that steel ball 13 climbs out of ball hole 138, and this moment, valve plate 11 was strutted by steel ball 13 with dunnage 12, and the distance between the two is to receive the twice of diameter of a steel ball 13 in the ball hole 171.When steel ball 13 was positioned at the position in ball hole, the distance between valve plate 11 and the dunnage 12 was the twice less than the diameter of steel ball 13 at this moment, and spool can be by swing and the seal ring that can not rub like this.The distance that is strutted between valve plate 11 and the dunnage 12 depends on the degree of depth in ball hole, and the degree of depth in ball hole and the unlatching size of valve have relation.
The upper surface of valve plate 11 seal groove 110 circumferentially arranged; The lower surface of dunnage 12 seal groove 120 circumferentially arranged; As shown in Figure 1, place O RunddichtringO 119,129 in the seal groove 110,120, in case the spool steel ball struts; These O RunddichtringOs 119,129 just seal between the upper and lower surface with spool and valve body inboard, thereby can play the effect of dual face seals.Seal ring 119,129 also has shockproof effect, perhaps a seal ring wherein is arranged to be exclusively used in shockproof effect.
Because latch plate 14 forces steel ball 13 to impact the noise that valve plates, dunnage cause, between valve plate 11 and dunnage 16, be provided with compression spring component in order to reduce to close spool, compression spring component comprises stage clip 121; Stage clip pin 123 and compression spring sleeve 122, stage clip 121 are enclosed within on the stage clip pin 123, and stage clip 121 is arranged in compression spring sleeve 122; Stage clip 121 is compressed between the two the flange of compression spring sleeve 122 and stage clip pin 123; Compression spring sleeve 122 is fixed on the dunnage 12, and stage clip pin 123 is fixed on the valve plate 11, and stage clip 121 applies downward power on valve plate 11; On dunnage 12, apply power upwards, therefore make valve plate 11 and dunnage 12 that the trend of being drawn in is arranged.Because compression spring component has the power that valve plate 11 and dunnage 12 are drawn in; Therefore the requirement that latch plate 14 is applied to the power of steel ball 13 has just reduced; Reduce owing to be applied to the power of steel ball 13 on the latch plate 14, therefore just can reduce steel ball 13 and cheat the noise that sent at 138 o'clock at the impact ball.In other embodiments of the invention, compression spring sleeve 122 can also be fixed on the valve plate 11, and stage clip pin 123 correspondingly is fixed on the dunnage 12.In of the present invention other were implemented, compression spring component can be substituted by other springs, for example is extension spring, as long as can make valve plate 11 and dunnage 12 that the trend of being drawn in is arranged.In embodiment as shown in the figure, two compression spring components are symmetrically distributed in the inner ring of steel ball rack 17 with center spool, and can be distributed in the outer ring of steel ball rack 17, the quantity of compression spring component is not limit.Compression spring component among the embodiment as shown in the figure also has leading role with valve plate, dunnage binding.
Shown in figure 11, be used to connect the transmission shaft 6 of drive unit 4 and fork 16 and the sealing between the axle sleeve 216 realizes through gland seal assembly 61.Gland seal assembly 61 comprises sealing seat 614, gland nut 613, a plurality of lining rings 611 and a plurality of seal rings 612.614 one-tenth sleeve shape of sealing seat; It is built in the axle sleeve 216, and its outer wall and axle sleeve 216 inwalls are fitted, and are placed with seal ring 615 between the counterbore of its flange and axle sleeve 216; To realize the sealing of the two; Be formed with the shaft shoulder on the inwall of sealing seat 614, be placed with seal ring assembly on its shaft shoulder, seal ring assembly comprises a plurality of lining rings 611 and seal ring 612 that are staggeredly placed.The upper end that gland nut 613 inserts sealing seat 614; And be threaded with sealing seat 614; The upper end of the inner pressure seal ring assembly of gland nut 613, because gland nut 613 applies downward pressure in the upper end of seal ring assembly, and the aforementioned shaft shoulder of sealing seat 614 applies in the seal ring assembly lower end and upwards pressure; Make seal ring assembly be extruded, aforementioned extruding force makes each seal ring 612 between sealing seat 614 and transmission shaft 6, bring into play good sealing effect.Between Lower shaft sleeve 216 on the valve body housing 21 and transmission shaft 6, be provided with aforementioned axis sealing assembly 61 respectively; In above stated specification; Only be illustrated, but above stated specification also is applicable to the axle sleeve 216 of valve body housing 21 downsides and the gland seal assembly between the transmission shaft 6 with the axle sleeve 216 of valve body housing 21 upsides and the gland seal assembly 61 between the transmission shaft 6.
Continuation is with reference to Figure 11, connects holder down in the lower end of the axle sleeve 216 of valve body housing 21 downsides through screw and cover 65 and cover 65 and seal by holding in the palm down, following hold in the palm cover 65 and the lower end of transmission shaft 6 between thrust-bearing 68 is arranged, thrust-bearing 68 makes that transmission shaft 6 is free to rotate.Transmission shaft 6 is arranged in the part of valve body cavity 210 by non-circular hole 66, and it is used to insert the end of fork 16.The upper end 67 of transmission shaft 6 is non-circular spindle nose, and it is used for being connected with drive unit 4.
Referring to figs. 1 through Figure 11, when driver 4 transmitted torque to transmission shaft 6, transmission shaft 6 rotated simultaneously, and transmission shaft 6 drives fork 16 swings, and fork 16 drives steel ball rack 17 activities.If valve is in closed condition; Frictional force between dunnage 12, valve plate 3 and the valve body housing 21 is bigger, and it is movable that can not drive whole spool this moment, and steel ball rack 17 only can drive steel ball 13 activities; So that steel ball 13 climbs in the ball hole 138; Fork 16 could drive whole spool 1 then, and spool 1 is turned in the valve pocket of valve gap, thereby makes valve open; If valve is in open mode, fork 16 drives the direction activity of whole spool 1 toward throttle down, runs into internal edge or other bounding meanss of valve body housing 21 up to spool 1; Spool 1 integral body can not move; But fork 16 drives steel ball rack 17, and steel ball rack 17 drives steel ball 13, from ball hole 138, climbs out of; Back down valve plate 11 and dunnage 12 (the two has axial displacement but does not have the rotation with fork 16), thus throttle down.
Previous embodiment has following characteristics or advantage.
1. because valve is closed or opened to spool 1 through swing, for the spool of line activities, its activity space that needs is little, so the valve monnolithic case can be done little.In one embodiment of this invention, the contour length of valve can shorten 1/3 with respect to the contour length of the valve of the spool that line activities is arranged.
2. valve gap 3 is through hinge and screw, hook screw and valve body 2 structure combining, and mounting or dismounting are convenient.
3. valve can not pulled down from equipment, through opening valve gap 3, can take out and clean spool 1, change Sealing.
4. this valve use, easy to maintenance;
Upper and lower side two way sealed in the valve plate of this valve through spool and dunnage and the valve body housing, seal reliably;
7. behind the valve closing, valve plate can withstand atmosphere and seals during the outer atmosphere of vacuum in the valve, valve, does not need the power support;
8. this valve can forward and reversely use, and valve body is motionless, reinstalls (on the valve plate 11 seal ring is installed, shockproof O shape circle (it plays shockproof and vacuum-packed effect) is installed on the dunnage 12) as long as extract spool out upset 180 °;
The spool formal dress with turn over 180 ° of dresses and use said function is arranged;
10. valve oppositely uses on the valve plate 11 " O " shape seal ring 119 to be difficult for by the metallic oxide etch, and seal ring 119 is the primary seal of valve, and it has determined the performance and the life-span of valve;
11. valve need not increase any part, loading onto Pneumatic actuator is pneumatic valve, and loading onto Electric actuator is electric valve, and loading onto handle is manually-operated gate;
12. the practicable automation control of valve;
Adopt stage clip and leaf spring composite structure 13. two plates (valve plate, dunnage) strut, draw in, increase the stage clip pulling force and reduce the leaf spring pulling force, the sound of taking leaf spring to send reduces with vibration greatly.
In embodiment 1, drive unit 4 is a Pneumatic actuator.In other embodiments of the invention, drive unit 4 can also for but be not limited to Electric actuator or manual operating device.
Claims (8)
1. spool is characterized in that, comprises dunnage, valve plate and spheroid frame; Place rotating spheroid on the spheroid frame, the spheroid frame is between dunnage and valve plate, and dunnage can be connected with valve plate with moving to axial; The ball hole that corresponding spheroid is arranged in dunnage, the valve plate; The spheroid frame is connected with outward extending fork, makes spheroid from the ball hole, climb out of said ball hole so that fork can drive the rotation of spheroid frame, and then valve plate, dunnage are strutted; Perhaps make fork can drive the spheroid frame and rotate spheroid is got in the said ball hole, so that valve plate, dunnage draw in.
2. spool as claimed in claim 1 is characterized in that, the dunnage side of spheroid frame is connected with dunnage through latch plate, and the valve plate side of spheroid frame is connected with valve plate through latch plate, and the spheroid frame by the latch plate clamping of dunnage side and valve plate side.
3. spool as claimed in claim 1 is characterized in that, is connected by spring assembly between the dunnage of spool and the valve plate, and said spring assembly is applied with the elastic force that draws dunnage and valve plate in.
4. spool as claimed in claim 3; It is characterized in that; Said spring assembly comprises stage clip, stage clip pin and compression spring sleeve; Compression spring sleeve is on the stage clip pin and be arranged in compression spring sleeve, and stage clip is compressed between the two the protuberance of compression spring sleeve and stage clip pin, and the side in compression spring sleeve and the stage clip pin is fixed on the dunnage and the opposing party is fixed on the valve plate.
5. spool as claimed in claim 1 is characterized in that spheroid is put up annular, in its ball hole upper and lower two spheroids is arranged, and said dunnage, valve plate are metal material.
6. split type swing vacuum push-pull valve is characterized in that, comprises
Valve body comprises the valve body housing, and the valve body housing has valve body valve pocket and valve opening, and the valve body housing also has the axle sleeve in the axis hole and the axis hole outside;
Valve gap removably is tightly connected with valve body, has the valve gap valve pocket, and valve gap valve pocket and valve body valve pocket communicate and constitute the whole valve valve pocket of push-pull valve;
Transmission shaft passes axle sleeve and axis hole on the valve body, and and axle sleeve between through gland seal assembly sealing, free to rotate, its outer end is used to connect drive unit;
Like each described spool in the claim 1 to 4, be arranged in the valve valve pocket, dunnage, valve plate with valve body housing opposite flank on seal ring is arranged, spool can enter into the valve gap valve pocket.
7. split type swing vacuum push-pull valve as claimed in claim 6 is characterized in that a side of valve gap and valve body is connected through hinging structure, and remaining part connects through hook screw.
8. split type swing vacuum push-pull valve as claimed in claim 6 is characterized in that said gland seal assembly comprises sealing seat, gland nut; And the seal ring assembly of forming by a plurality of lining rings that are staggeredly placed and a plurality of seal ring, sealing seat becomes sleeve shape, and its sealing is built in the said axle sleeve; Be formed with the shaft shoulder on the inwall of sealing seat; Place the sealing coil assembly on its shaft shoulder, gland nut inserts the upper end of sealing seat, and is threaded with sealing seat; The upper end of the inner pressure seal ring assembly of gland nut is so that seal ring is extruded and seals the outside of transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210268811 CN102748493B (en) | 2012-07-30 | 2012-07-30 | Separated-type oscillatory vacuum insertion board and valve core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210268811 CN102748493B (en) | 2012-07-30 | 2012-07-30 | Separated-type oscillatory vacuum insertion board and valve core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102748493A true CN102748493A (en) | 2012-10-24 |
| CN102748493B CN102748493B (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210268811 Active CN102748493B (en) | 2012-07-30 | 2012-07-30 | Separated-type oscillatory vacuum insertion board and valve core |
Country Status (1)
| Country | Link |
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| CN (1) | CN102748493B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630707A (en) * | 2019-02-25 | 2019-04-16 | 天津绿清管道科技股份有限公司 | Integral splint valve |
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| US3237916A (en) * | 1963-10-02 | 1966-03-01 | Grove Valve & Regulator Co | Disc valve |
| CN2731200Y (en) * | 2004-10-26 | 2005-10-05 | 浙江东亚阀门有限公司 | High-efficient energy-saving type automatic turn oven type blind plate valve |
| CN2856625Y (en) * | 2005-12-22 | 2007-01-10 | 烟台开发区天行机械设备有限公司 | Pendulum arm type hot air valve |
| CN2913758Y (en) * | 2006-04-22 | 2007-06-20 | 汪西军 | Fast on-off gate valve |
| CN200946677Y (en) * | 2006-09-15 | 2007-09-12 | 四川省科能工业设备制造有限公司 | Millstone type ceramic valve for material conveying |
| CN202927110U (en) * | 2012-07-30 | 2013-05-08 | 费海鸿 | Split type swing vacuum gate valve and valve core |
-
2012
- 2012-07-30 CN CN 201210268811 patent/CN102748493B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3237916A (en) * | 1963-10-02 | 1966-03-01 | Grove Valve & Regulator Co | Disc valve |
| CN2731200Y (en) * | 2004-10-26 | 2005-10-05 | 浙江东亚阀门有限公司 | High-efficient energy-saving type automatic turn oven type blind plate valve |
| CN2856625Y (en) * | 2005-12-22 | 2007-01-10 | 烟台开发区天行机械设备有限公司 | Pendulum arm type hot air valve |
| CN2913758Y (en) * | 2006-04-22 | 2007-06-20 | 汪西军 | Fast on-off gate valve |
| CN200946677Y (en) * | 2006-09-15 | 2007-09-12 | 四川省科能工业设备制造有限公司 | Millstone type ceramic valve for material conveying |
| CN202927110U (en) * | 2012-07-30 | 2013-05-08 | 费海鸿 | Split type swing vacuum gate valve and valve core |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630707A (en) * | 2019-02-25 | 2019-04-16 | 天津绿清管道科技股份有限公司 | Integral splint valve |
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| Publication number | Publication date |
|---|---|
| CN102748493B (en) | 2013-10-30 |
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