CN201330861Y - Double gate valve - Google Patents
Double gate valve Download PDFInfo
- Publication number
- CN201330861Y CN201330861Y CNU2009200000152U CN200920000015U CN201330861Y CN 201330861 Y CN201330861 Y CN 201330861Y CN U2009200000152 U CNU2009200000152 U CN U2009200000152U CN 200920000015 U CN200920000015 U CN 200920000015U CN 201330861 Y CN201330861 Y CN 201330861Y
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- CN
- China
- Prior art keywords
- valve
- double gate
- driving plate
- gate valve
- steel ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a double gate valve used for vacuum device. The double gate valve according to the utility model comprises a valve body, a driving device, a motion-stopping device and a valve device, wherein, the moving device and valve device are movably installed on the valve body. The driving device is connected with the valve device for forming a parallel crank mechanism. The motion-stopping device is installed on the valve body. The driving device can drive the valve device to close or open. In the double gate valve of the utility model, the valve has the advantages of high open speed and reliable self-locking. Furthermore, as the plane of valve port has zero friction, the service lifetime of double gate valve according to the utility model is longer.
Description
Technical field
The utility model relates to a kind of double gate valve, more particularly, relates to a kind of double gate valve that is used for vacuum equipment.
Background technique
The double gate valve ubiquity that is used for vacuum equipment at present complex structure, troublesome poeration, can not two way sealed and defective such as working life is short.In order to overcome the above-mentioned defective of known double gate valve, the utility model proposes a kind of novel double gate valve.
The model utility content
The utility model is the pin improvements over the prior art, and the technical problem that it will solve provides a kind of double gate valve that is applicable to the control of non-circular valve.Can open two valves simultaneously according to double gate valve of the present utility model, but and opening speed is fast, the reliable two way sealed of self-locking.Because the valve port plane does not have friction, double gate valve of the present utility model is longer working life.
For this reason, comprise valve body, drive unit, stopping device and valving according to double gate valve of the present utility model, wherein, described drive unit and valving are installed on the described valve body movably; Described drive unit links to each other with described valving, constitutes parallel-crank mechanism; Described stopping device is installed on the described valve body.
Further improve according to the utility model, described drive unit comprises at least one group of linking mechanism, and described linking mechanism comprises a valve rod and at least two connecting rods; The number of the connecting rod in the number of described valving and the every group of linking mechanism is identical; Described valving comprises driving plate, spring, steel ball, roller and two valve plates, wherein, described valve plate by described spring and steel ball floating support on described driving plate; Described driving plate is bearing on the described roller; Described roller is bearing on the bottom guide track of described valve body movably; One end of every connecting rod all is articulated and connected with the driving plate of a valving wherein, and the other end all is articulated and connected with described valve rod.
Further improve according to the utility model, described drive unit comprises two groups of linking mechanisms.
Further improve according to the utility model, be provided with the hole that at least one lays described steel ball in the described driving plate, the bigger diameter that is less than or equal to described steel ball in the aperture in described hole, described steel ball expose from the two ends in described hole and expose crown; Described valve plate is arranged on described driving plate both sides, is pressed against on the described steel ball, and is connected with the two ends of described spring; Be provided with at least one taper hole in the described valve plate, the depth design of described taper hole becomes exposing crown and can being received in the described taper hole of described steel ball, and tangent with the conical surface of described taper hole.
Further improve according to the utility model, the number of described steel ball is two, and described two steel balls are contained in the hole of described driving plate along the thickness direction of described driving plate.
Further improve according to the utility model, the diameter sum of described two steel balls is 1.2 to 1.99 times of described driving plate thickness.
Further improve according to the utility model, the number of described hole and described taper hole is identical.
Further improve according to the utility model, the aperture of described taper hole is provided with 150 ° to 170 ° chamfering.
Further improve according to the utility model, the cone angle of described taper hole is 90 °.
Further improve according to the utility model, described stopping device is a limited wheel.
Description of drawings
Fig. 1 is the structural representation of double gate valve of the present utility model.
Fig. 2 cuts open the sectional view of getting along the A-A line among Fig. 1.
Fig. 3 cuts open the sectional view of getting along the B-B line among Fig. 1.
Embodiment
Fig. 1 is the structural representation according to double gate valve of the present utility model.This double gate valve comprises valve body, drive unit, stopping device and valving, wherein, described drive unit and valving are installed on the described valve body movably, and described drive unit links to each other with described valving, constitute parallel-crank mechanism, described stopping device is installed on the described valve body.
According to a preferred embodiment of the present utility model, described double gate valve comprises two valvings, and described two valvings are symmetrical arranged with respect to valve rod 2, and wherein each valving all comprises driving plate 7, spring 6, steel ball 5, roller 9 and two valve plates 4.Valve plate 4 by spring 6 and steel ball 5 floating supports on driving plate 7.As shown in Figure 2, be provided with a hole 12 in the driving plate 7, lay two steel balls 5 in this hole 12.The aperture Φ in hole 12 is slightly larger than or equals the diameter of steel ball 5, and the diameter sum of two steel balls 5 equals 1.2-1.99 times of driving plate thickness D.Two steel balls 5 are contained in the hole 12 of described driving plate along the thickness direction of driving plate 7, and 12 two ends are exposed and exposed crown 13 from the hole.4 one-tenth minute surfaces of valve plate are arranged on the both sides of driving plate 7 symmetrically, and are pressed against on the steel ball 5.During assembling, spring 6 is in extended state, and the two ends of spring are connected with two valve plates 4 respectively, with in the middle of described valve plate is tightly pulled to, makes valve plate 4 firmly push down driving plate 7 by steel ball 5 and spring 6.The position of the steel ball 5 in the hole 12 of taper hole 10 and driving plate is corresponding.
Be provided with at least one taper hole 10 in the valve plate 4, the place, aperture of this conical bore 10 is provided with 150 °-170 ° chamfering 11.The effect of chamfering 11 is: A, at valve plate 4 soon near the valve base seal position during the compressive seal, increase the thrust of 5 pairs of valve plates 4 of steel ball, therefore, chamfering 11 has the suitable degree of depth; B, make valve plate 4 behind compressive seal, keep self-locking.Described conical bore also has 90 ° of cone angles, so that can push valve plate fast open when throttle down.
The position of the taper hole 10 on the valve plate 4 is corresponding with the position and the number in the hole 12 of driving plate 7 with number.
Described drive unit comprises two linkages, and wherein every group of linking mechanism comprises a valve rod 2 and two connecting rods 3, and wherein an end of every connecting rod 3 all is articulated and connected with the driving plate 7 of a valving wherein, and the other end all is articulated and connected with valve rod 2.Therefore, the valve rod in every group of linkage 2, two connecting rods 3 and two valvings constitute a parallel-crank mechanism together.
Driving plate 7 is bearing on the roller 9, and this roller 9 can be shown in arrow among Fig. 1, along the bottom guide track move left and right of described valve body.
In addition,, need make valve plate 4,, thereby promote valve plate 4 motions from taper hole 10 so that steel ball 5 is shifted out early than driving plate 7 stop motions for throttle down.Therefore, double gate valve of the present utility model also comprises the stopping device that stops valve plate 4 further to move.As shown in figs. 1 and 3, this stopping device is the limited wheel 8 that is arranged on the described valve body left and right sides.When valve plate 4 contacts with limited wheel 8, limited wheel 8 stops valve plate 4 to move along the bottom guide track of valve body, simultaneously, move away from driving plate 7 in valve plate 4 both sides at driving plate 7 under the driving of steel ball 5, and with limited wheel 8 between mutual friction mutually, make limited wheel 8 under the promotion of frictional force, roll, to reduce the resistance that valve plate 4 is subjected to.According to preferred embodiment of the present utility model, the described valve body left and right sides is respectively arranged with two limited wheels 8.
During throttle down, valve rod 2 moves down under the effect of cylinder, and moves by connecting rod 3 drive driving plates 7.Simultaneously, valve plate 4 moves to both sides with driving plate 7 under the effect of the frictional force that spring 6 and steel ball 5 are applied.When valve plate 4 contacted with limited wheel 8, valve plate 4 stopped to move, and driving plate 7 continues to move to both sides.Along with the continuation campaign of driving plate 7, steel ball 5 is driven plate 5 release of rolling along the conical surface of taper hole 10 from taper hole 10, and overcomes spring force under the promotion of driving plate 7, and valve port is opened and be pushed into to both sides, front and back valve plate 4, thus throttle down.Valve plate 4 residing positions when the position is valve closing shown in the solid line among Fig. 1, driving plate 7 residing positions when position shown in the dotted line is valve closing.
During Open valve, when valve rod 2 moved up, under the effect of connecting rod 3, the driving plate 7 of the left and right sides moved to the centre simultaneously.At the initial stage of driving plate 7 motions, valve plate 4 can not be with driving plate 7 motions because of the effect of Sealing deformation force, steel ball 5 then along the central authorities that 150 ° of-170 ° of chamferings 11 and the conical surface of taper hole 10 is rolled into taper hole 10 gradually, reduces its thrust to valve plate 4 simultaneously gradually.In this course, valve plate 4 overcomes the deformation force of Sealing under the effect of spring 6, draws close to the centre gradually, when steel ball 5 enters taper hole 10 centers fully, pastes the jail with driving plate 7.Along with driving plate 7 continues to move to the centre, described front and back valve plate also moves to the centre under the drive of driving plate 7, open fully until valve, and valve rod 2 stop motions.Valve plate 4 residing positions when the position is valve opening shown in the double dot dash line among Fig. 1.
Should be noted that this specification is described preferred embodiment of the present utility model.Other schemes that are equal to specific embodiment described herein that can expect for those skilled in the art, this is equal to scheme and also should comprises in the appended claims.
Claims (10)
1. a double gate valve comprises valve body, drive unit, stopping device and valving, it is characterized in that: described drive unit and valving are installed on the described valve body movably; Described drive unit links to each other with described valving, constitutes parallel-crank mechanism; Described stopping device is installed on the described valve body.
2. double gate valve according to claim 1 is characterized in that:
Described drive unit comprises at least one group of linking mechanism, and described linking mechanism comprises a valve rod (2) and at least two connecting rods (3);
The number of the connecting rod (3) in the number of described valving and the every group of linking mechanism is identical;
Described valving comprises driving plate (7), spring (6), steel ball (5), roller (9) and two valve plates (4), wherein, described valve plate (4) by described spring (6) and steel ball (5) floating support on described driving plate (7); Described driving plate (7) is bearing on the described roller (9); Described roller (9) is bearing on the bottom guide track of described valve body movably;
One end of every connecting rod (3) all is articulated and connected with the driving plate of a valving (7) wherein, and the other end all is articulated and connected with described valve rod (2).
3. double gate valve according to claim 2 is characterized in that: described drive unit comprises two groups of linking mechanisms.
4. double gate valve according to claim 3 is characterized in that:
Be provided with at least one hole of laying described steel ball (5) (12) in the described driving plate (7), the bigger diameter that is less than or equal to described steel ball (5) in aperture (Ф) in described hole (12), described steel ball (5) expose from the two ends of described hole (12) and expose crown (13);
Described valve plate (4) is arranged on described driving plate (7) both sides, is pressed against on the described steel ball (5), and is connected with the two ends of described spring (6);
Be provided with at least one taper hole (10) in the described valve plate (4), the depth design of described taper hole (10) becomes exposing crown (13) and can being received in the described taper hole (10) of described steel ball (5), and tangent with the conical surface of described taper hole (10).
5. double gate valve according to claim 4 is characterized in that: the number of described steel ball (5) is two, and described two steel balls (5) are contained in the hole (12) of described driving plate along the thickness direction of described driving plate (7).
6. double gate valve according to claim 5 is characterized in that: the diameter sum of described two steel balls (5) is 1.2 to 1.99 times of described driving plate (7) thickness (D).
7. according to each described double gate valve among the claim 4-6, it is characterized in that: described hole (12) are identical with the number of described taper hole (10).
8. double gate valve according to claim 7 is characterized in that: the aperture of described taper hole (10) is provided with 150 ° to 170 ° chamfering (11).
9. double gate valve according to claim 8 is characterized in that: the cone angle of described taper hole (10) is 90 °.
10. double gate valve according to claim 9 is characterized in that: described stopping device is limited wheel (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200000152U CN201330861Y (en) | 2009-01-04 | 2009-01-04 | Double gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200000152U CN201330861Y (en) | 2009-01-04 | 2009-01-04 | Double gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201330861Y true CN201330861Y (en) | 2009-10-21 |
Family
ID=41224241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200000152U Expired - Fee Related CN201330861Y (en) | 2009-01-04 | 2009-01-04 | Double gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201330861Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131461A (en) * | 2017-08-09 | 2018-06-08 | 辽宁五星智能装备开发有限公司 | A kind of draining cuts oil without friction headstock gear |
| CN113309869A (en) * | 2021-04-26 | 2021-08-27 | 深圳市大成精密设备有限公司 | Vacuum plate valve |
-
2009
- 2009-01-04 CN CNU2009200000152U patent/CN201330861Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131461A (en) * | 2017-08-09 | 2018-06-08 | 辽宁五星智能装备开发有限公司 | A kind of draining cuts oil without friction headstock gear |
| CN108131461B (en) * | 2017-08-09 | 2023-06-27 | 辽宁五星智能装备开发有限公司 | Drainage oil interception friction-free opening and closing device |
| CN113309869A (en) * | 2021-04-26 | 2021-08-27 | 深圳市大成精密设备有限公司 | Vacuum plate valve |
| CN113309869B (en) * | 2021-04-26 | 2022-04-08 | 深圳市大成精密设备股份有限公司 | Vacuum plate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20180104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |