CN203948686U - Low moment of torsion stopcock - Google Patents
Low moment of torsion stopcock Download PDFInfo
- Publication number
- CN203948686U CN203948686U CN201420397835.0U CN201420397835U CN203948686U CN 203948686 U CN203948686 U CN 203948686U CN 201420397835 U CN201420397835 U CN 201420397835U CN 203948686 U CN203948686 U CN 203948686U
- Authority
- CN
- China
- Prior art keywords
- connecting sleeve
- ball
- sleeve
- valve
- drive link
- 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.)
- Withdrawn - After Issue
Links
Abstract
The utility model relates to a kind of low moment of torsion stopcock, it comprises valve body, valve gap, cock body, valve rod, drive unit, Gland and drive link, drive link lower end is socketed the first connecting sleeve, valve rod upper end is socketed the second connecting sleeve, the outer sheathed conversion sleeve of the first connecting sleeve, the first connecting sleeve is connected with the second connecting sleeve, between the first connecting sleeve and conversion sleeve, be provided with the first ball, the first ball has primary importance and the second place between the first connecting sleeve and drive link between conversion sleeve and the first connecting sleeve, between the first connecting sleeve and the second connecting sleeve, be provided with the second ball, the second ball has primary importance and the second place between the second connecting sleeve and conversion sleeve between the first connecting sleeve and the second connecting sleeve, cock body half-twist again after first promoting cock body sealing surface and valve body being departed from switch valve process, rotation declines cock body and guarantees that cock body channel is concentric with valve body channel, this action has avoided contacting of cock body and valve body to alleviate moment.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of low moment of torsion stopcock.
Background technique
Conventional stopcock is when switch valve operates, and cock body and valve body sealing surface are permanently connected to friction, causes in valve opening closing process operational torque large.
Model utility content
The shortcoming and defect existing for prior art, the utility model provides a kind of low moment of torsion stopcock, and it is easy to operate, it is simple, with low cost to process, and has effectively solved the friction of stopcock in switch valve process, has reduced the moment of torsion of stopcock.
The technological scheme that the utility model adopts is: a kind of low moment of torsion stopcock, it comprises valve body, valve gap, cock body, valve rod, drive unit, Gland and drive link, cock body and valve body form closeding valve cavity, cock body upper end is fixedly connected with valve rod, described drive unit is connected with drive link, valve gap is fixed on valve body top, described valve rod is connected with the cock body in valve body through valve gap, between described valve gap and valve rod, be provided with filler, described filler presses fixing by Gland, described drive link lower end is socketed the first connecting sleeve, described valve rod upper end is socketed the second connecting sleeve, the outer sheathed conversion sleeve of the first connecting sleeve, described the first connecting sleeve is connected with the second connecting sleeve, between described the first connecting sleeve and conversion sleeve, be provided with the first ball, described the first ball has to be made the primary importance that conversion sleeve and connecting sleeve block mutually and between the first connecting sleeve and drive link, makes the first connecting sleeve and drive link block mutually the second place of interlock between conversion sleeve and the first connecting sleeve, between described the first connecting sleeve and the second connecting sleeve, be provided with the second ball, described the second ball has between the first connecting sleeve and the second connecting sleeve to be made the first connecting sleeve and the second connecting sleeve block mutually the primary importance of interlock and between the second connecting sleeve and conversion sleeve, makes the second connecting sleeve and conversion sleeve block mutually the second place of interlock.
Described conversion sleeve inwall is provided with the first slot, on described the first connecting sleeve, corresponding the first slot place is provided with the first through hole of placing the first ball, the outer wall of described drive link is provided with the first containing groove, and described the first ball has in the primary importance between the first slot and the first through hole and the second place between the first through hole and the first containing groove.
Described the first slot two ends are provided with inversion arc round angle.
Described conversion sleeve inwall is provided with the second slot, corresponding the second slot place of described the second connecting sleeve is provided with the second through hole of placing the second ball, the outer wall of described the first connecting sleeve is provided with the second containing groove, and described the second ball has in the primary importance between the second containing groove and the second through hole and the second place between the second through hole and the second containing groove.
Described the second slot two ends are provided with inversion arc round angle.
Described the first ball and the second ball are symmetrical all the time.
Between drive link and valve gap, be provided with bearing.
Described drive unit is handwheel.
Between described the second connecting sleeve and valve gap, be provided with limiting stopper.
The beneficial effects of the utility model are: cock body half-twist switch valve again after first promoting cock body sealing surface and valve body being departed from switch valve process, continue rotation and make cock body decline guarantee that cock body channel is concentric with valve body channel, this action has avoided contacting of cock body and valve body to alleviate moment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the valve operating principle schematic diagram of opening of the present utility model.
Fig. 3 is pass of the present utility model valve operating principle schematic diagram.
Fig. 4 is the A-A cross section view of Fig. 1.
Fig. 5 is the B-B cross section view of Fig. 1.
Fig. 6 is the enlarged view at A place in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
As shown in Fig. 1 and Fig. 6, the utility model provides a kind of low moment of torsion stopcock, it comprises valve body 1, valve gap 6, cock body 2, valve rod 3, drive unit, Gland 7 and drive link 4, cock body 2 forms closeding valve cavity with valve body 1, cock body 2 upper ends are fixedly connected with valve rod 3, described drive unit is connected with drive link 4, valve gap 6 is fixed on valve body 1 top, described valve rod 3 is connected with the cock body 2 in valve body 1 through valve gap 6, between described valve gap 6 and valve rod 3, be provided with filler, described filler presses fixing by Gland 7, described drive link 4 lower ends are socketed the first connecting sleeve 8, described valve rod 3 upper ends are socketed the second connecting sleeve 9, the outer sheathed conversion sleeve 10 of the first connecting sleeve 8, described the first connecting sleeve 8 is connected with the second connecting sleeve 9, between described the first connecting sleeve 8 and conversion sleeve 10, be provided with the first ball 11, described the first ball 11 has to be made the primary importance that conversion sleeve 10 and the first connecting sleeve 8 block mutually and between the first connecting sleeve 8 and drive link 4, makes the first connecting sleeve 8 and drive link 4 blocks mutually the second place linking between conversion sleeve 10 and the first connecting sleeve 8, between described the first connecting sleeve 8 and the second connecting sleeve 9, be provided with the second ball 12, described the second ball 12 has to be made the first connecting sleeve 8 and the second connecting sleeve 9 block mutually the primary importance of interlock and between the second connecting sleeve 9 and conversion sleeve 10, makes the second connecting sleeve 9 and conversion sleeve 10 block mutually the second place linking between the first connecting sleeve 8 and the second connecting sleeve 9.
As shown in Figure 4, described conversion sleeve 10 inwalls are provided with the first slot 101, on described the first connecting sleeve 8, corresponding the first slot 101 places are provided with the first through hole 81 of placing the first ball 11, the outer wall of described drive link 4 is provided with the first containing groove 41, and described the first ball 11 has in the primary importance between the first slot 101 and the first through hole 81 and the second place between the first through hole 81 and the first containing groove 41.
Described the first slot 101 two ends are provided with inversion arc round angle, are namely provided with R angle.The design at R angle, can be when driving valve, make to be placed on the first ball 11 in the first through hole 81 when the interior motion of the first slot 101, owing to being squeezed, along R angle, enter in the first containing groove 41, thereby make the first connecting sleeve 8 and the fixing interlock of drive link 4, or when closing valve, stressed first slot 101 that slips into along R angle of the first ball 11 that is positioned at the first containing groove 41 and the first connecting sleeve 8 making, realize the disengaging of drive link 4 and the first connecting sleeve 8, make drive link 4 no longer drive the first connecting sleeve 8 interlocks.
As shown in Figure 5, described conversion sleeve 10 inwalls are provided with the second slot 102, corresponding the second slot 102 places of described the second connecting sleeve 9 are provided with the second through hole 91 of placing the second ball 12, the outer wall of described the first connecting sleeve 8 is provided with the second containing groove 82, and described the second ball 12 has in the primary importance between the second containing groove 82 and the second through hole 91 and the second place between the second through hole 91 and the second slot 102.
Described the second slot 102 two ends are provided with inversion arc round angle, are namely provided with R angle.When driving valve, be placed on the second ball 12 in the second holding cavity 82 and the second through hole 91 owing to being squeezed, along R angle, enter the second holding cavity 82, make the second connecting sleeve 9 of interlock originally separated with the first connecting sleeve 8, make the second connecting sleeve 9 motionless, when closing valve, along R angle, enter between the second containing groove 82 and the second through hole 91 the second ball 12 between the second slot 102 and the second through hole 91 is stressed, thereby make the first connecting sleeve 8 and the second connecting sleeve 9 interlocks, thereby realize, close valve operation.
As shown in Figure 4 and Figure 5, no matter how how drive link 4, the first connecting sleeve 8, the second connecting sleeve 9 and conversion sleeve 10 4 rotate or are motionless, described the first ball 11 and the second ball 12 are symmetrical all the time, guarantee that the first connecting sleeve 8, the second connecting sleeve 9 and conversion sleeve 10 are in the stressed uniformity of valve gap 6 interior rotations, prevent its eccentric rotary, affect the effect that it closes valve and drives valve, this design can effectively guarantee that ball remains symmetric arrays, guarantees that drive link 4 and valve rod 3 are all the time in central position.
Between drive link 4 and valve gap 6, be provided with bearing 13.
Described drive unit is handwheel 5.
When being provided with limiting stopper 14, the second connecting sleeves 9 decline between described the second connecting sleeve 9 and valve gap 6, due to the position-limiting action of limiting stopper 14, the second limited of connecting sleeve 9 14 is spacing, and cock body is pressed in for 2 times in valve body 1, can just coincide.
As shown in Fig. 2 and Fig. 1, from Fig. 2 from top to bottom, the left side is the schematic diagram of the first ball 11 motions, the right is the schematic diagram of the second ball 12 motions, while driving valve, rotate counterclockwise handwheel 5, handwheel 5 drives drive link 4 rotations, the first connecting sleeve 8, the second connecting sleeve 9 keep motionless, drive link 4 makes the first connecting sleeve 8, the second connecting sleeve 9, valve rod 3 and cock body 2 promote 1/2 pitch by trapezoidal thread when Rotate 180 ° simultaneously, cock body 2 sealing surfaces depart from valve body 1, and now the first holding cavity 41 moves to the first through hole 81 places.Now the first connecting sleeve 8 upper ends touch drive link 4, both location, continue rotation, the first ball 11 between conversion sleeve 10 and the first connecting sleeve 8 enters between drive link 4 and the first connecting sleeve 8 by R angle, namely the first ball 11 enters between the first holding cavity 41 and the first through hole 81, drive link 4 and the first connecting sleeve 8 are become one, then drive link 4 half-twists, drive the first connecting sleeve 8, the second connecting sleeve 9, valve rod 3 and cock body 2 half-twists, now drive link 4 rotates together with the first connecting sleeve 8, continue rotation hand wheel 5, now the frictional force at filler place is greater than trapezoidal thread frictional force and makes the second ball 12 hauling-outs between the first connecting sleeve 8 and the second connecting sleeve 9, namely when the second holding cavity 82 and second through hole 91 arrival the second slot 102 places, because the effect of frictional force makes the second ball 12 slip in the second slot 102 along R angle, make the first connecting sleeve 8 separated with the second connecting sleeve 9, by trapezoidal thread, make the second connecting sleeve 9, valve rod 3 and cock body 2 decline cock body passage and valve channel are kept with one heart, now, drive link 4 and the first connecting sleeve 8 are rotated further, and the second connecting sleeve 9 is motionless, and second connecting sleeve 9 separated with the first connecting sleeve 8, the second connecting sleeve 9 now, valve rod 3 and cock body 2 fall to compressing.
As shown in Fig. 3 and Fig. 1, from Fig. 3 from top to bottom, the left side is the schematic diagram of the first ball 11 motions, the right is the schematic diagram of the second ball 12 motions, while closing valve, clockwise rotate handwheel 5, handwheel 5 drives drive link 4 and the first connecting sleeve 8 rotations, the second connecting sleeve 9 is motionless, trapezoidal thread in the time of Rotate 180 ° between the first connecting sleeve 8 and the second connecting sleeve 9 makes the second connecting sleeve 8, valve rod 3 and cock body 2 promote 1/2 pitch and valve body 1 departs from, now the first connecting sleeve 8 lower planes touch the second connecting sleeve 9, then two parts are located, continue rotation, the second ball 12 between the second connecting sleeve 8 and conversion sleeve 10 enters between the first connecting sleeve 8 and the second connecting sleeve 9, two parts are integrated, the second containing groove 82 moves to the second through hole 91 and the second slot 102 places.Drive link 4 half-twists drive the first connecting sleeve 8, the second connecting sleeve 9, valve rod 3 and cock body 2 half-twists, the first containing groove 41 and the first through hole 81 move to the first slot 101 places, continuing to rotate the frictional force at filler place is now greater than trapezoidal thread frictional force the first ball 11 between the first connecting sleeve 8 and conversion sleeve 10 is hauled out, the first ball 11 slips into the first slot 101 and the first through hole 81 places from the first containing groove 41 and the first through hole 81, thereby make two parts separated, trapezoidal thread between drive link 4 and the first connecting sleeve 8 makes the first connecting sleeve 8, the second connecting sleeve 9, valve rod 3 and cock body 2 decline 1/2 pitch make valve seal.
Embodiment should not be considered as restriction of the present utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection domain of the present utility model.
Claims (9)
1. one kind low moment of torsion stopcock, it comprises valve body, valve gap, cock body, valve rod, drive unit, Gland and drive link, cock body and valve body form closeding valve cavity, cock body upper end is fixedly connected with valve rod, described drive unit is connected with drive link, valve gap is fixed on valve body top, described valve rod is connected with the cock body in valve body through valve gap, between described valve gap and valve rod, be provided with filler, described filler presses fixing by Gland, it is characterized in that: described drive link lower end is socketed the first connecting sleeve, described valve rod upper end is socketed the second connecting sleeve, the outer sheathed conversion sleeve of the first connecting sleeve, described the first connecting sleeve is connected with the second connecting sleeve, between described the first connecting sleeve and conversion sleeve, be provided with the first ball, described the first ball has to be made the primary importance that conversion sleeve and connecting sleeve block mutually and between the first connecting sleeve and drive link, makes the first connecting sleeve and drive link block mutually the second place of interlock between conversion sleeve and the first connecting sleeve, between described the first connecting sleeve and the second connecting sleeve, be provided with the second ball, described the second ball has between the first connecting sleeve and the second connecting sleeve to be made the first connecting sleeve and the second connecting sleeve block mutually the primary importance of interlock and between the second connecting sleeve and conversion sleeve, makes the second connecting sleeve and conversion sleeve block mutually the second place of interlock.
2. low moment of torsion stopcock according to claim 1, it is characterized in that, described conversion sleeve inwall is provided with the first slot, on described the first connecting sleeve, corresponding the first slot place is provided with the first through hole of placing the first ball, the outer wall of described drive link is provided with the first containing groove, and described the first ball has in the primary importance between the first slot and the first through hole and the second place between the first through hole and the first containing groove.
3. low moment of torsion stopcock according to claim 2, is characterized in that, described the first slot two ends are provided with inversion arc round angle.
4. low moment of torsion stopcock according to claim 1, it is characterized in that, described conversion sleeve inwall is provided with the second slot, corresponding the second slot place of described the second connecting sleeve is provided with the second through hole of placing the second ball, the outer wall of described the first connecting sleeve is provided with the second containing groove, and described the second ball has in the primary importance between the second containing groove and the second through hole and the second place between the second through hole and the second containing groove.
5. low moment of torsion stopcock according to claim 4, is characterized in that, described the second slot two ends are provided with inversion arc round angle.
6. according to the low moment of torsion stopcock described in claim 1,2,3,4 or 5, it is characterized in that, described the first ball and the second ball are symmetrical all the time.
7. low moment of torsion stopcock according to claim 1, is characterized in that, between drive link and valve gap, is provided with bearing.
8. low moment of torsion stopcock according to claim 1, is characterized in that, described drive unit is handwheel.
9. low moment of torsion stopcock according to claim 1, is characterized in that, between described the second connecting sleeve and valve gap, is provided with limiting stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420397835.0U CN203948686U (en) | 2014-07-18 | 2014-07-18 | Low moment of torsion stopcock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420397835.0U CN203948686U (en) | 2014-07-18 | 2014-07-18 | Low moment of torsion stopcock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203948686U true CN203948686U (en) | 2014-11-19 |
Family
ID=51890723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420397835.0U Withdrawn - After Issue CN203948686U (en) | 2014-07-18 | 2014-07-18 | Low moment of torsion stopcock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203948686U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132156A (en) * | 2014-07-18 | 2014-11-05 | 凯喜姆阀门有限公司 | Low-torque plug valve |
| CN106439077A (en) * | 2016-10-31 | 2017-02-22 | 杭州安其拉科技有限公司 | Ball type ultralow-torque cock valve |
-
2014
- 2014-07-18 CN CN201420397835.0U patent/CN203948686U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132156A (en) * | 2014-07-18 | 2014-11-05 | 凯喜姆阀门有限公司 | Low-torque plug valve |
| CN104132156B (en) * | 2014-07-18 | 2016-04-20 | 凯喜姆阀门有限公司 | Low moment of torsion stopcock |
| CN106439077A (en) * | 2016-10-31 | 2017-02-22 | 杭州安其拉科技有限公司 | Ball type ultralow-torque cock valve |
| CN106439077B (en) * | 2016-10-31 | 2018-11-06 | 杭州安其拉科技有限公司 | A kind of ball-type ultra-low torque plug valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104132156B (en) | Low moment of torsion stopcock | |
| CN203948686U (en) | Low moment of torsion stopcock | |
| CN102705472A (en) | Transmission device for changing straight reciprocating motion into rotary motion | |
| CN203627868U (en) | Novel distraction spherical intercepting valve | |
| CN204239771U (en) | A kind of linkage type butterfly valve | |
| CN203926868U (en) | Sealing fine turning gate valve | |
| CN105156708A (en) | Micro-torque ball valve | |
| CN203500537U (en) | Hand wheel of soft seal gate valve | |
| CN204573298U (en) | A kind of Pneuamtic actuator for valve | |
| CN207364339U (en) | A kind of single pole is double to drive multiposition valve | |
| CN203743456U (en) | Butterfly valve | |
| CN103133712B (en) | Double-wedge type double-ball-clack valve | |
| CN104818891A (en) | Lock | |
| CN202432096U (en) | Lockable ball valve | |
| CN203477392U (en) | Hand-operated quick opening and closing gate valve | |
| CN104676085B (en) | Actuator with infeed stroke | |
| CN203308433U (en) | Ball screw gate valve | |
| CN204004742U (en) | A kind of valve | |
| CN104129540A (en) | Thin film packaging body tightening and squeezing device | |
| CN202867874U (en) | Y-shaped control valve | |
| CN103438268B (en) | High pressure valve compound start-stop device | |
| CN205781272U (en) | A kind of butterfly valve actuating device | |
| CN203477387U (en) | Dual-blocking expansion plug valve | |
| CN107228203A (en) | A kind of gate valve device of pyrolysis furnace | |
| CN204403389U (en) | A kind of novel super-high pressure valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141119 Effective date of abandoning: 20160420 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |