CN203686164U - Mechanism for downward quick motion of valve rod - Google Patents
Mechanism for downward quick motion of valve rod Download PDFInfo
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- CN203686164U CN203686164U CN201320885666.0U CN201320885666U CN203686164U CN 203686164 U CN203686164 U CN 203686164U CN 201320885666 U CN201320885666 U CN 201320885666U CN 203686164 U CN203686164 U CN 203686164U
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- valve rod
- sliding nut
- spring
- flap
- axis
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Abstract
The utility model discloses a mechanism for the downward quick motion of a valve rod, and the mechanism is characterized in that a side, close to a clamping shaft, of a sliding nut is provided with a wedge-shaped groove in the horizontal direction; a contact part, corresponding to the wedge-shaped groove and contacting with the sliding nut, of the clamping shaft is a wedge-shaped shaft structure; the clamping shaft can be screwed into the wedge-shaped groove of the sliding nut through the rotating of the clamping shaft, thereby enabling the sliding nut not to make axial movement; a spring is disposed in an annular groove of the nut, and is buckled by a spring box cover; the spring box cover is connected with a spring box body through a bolt; a hand wheel and a hand wheel shaft are connected as a body through a screw cap; the hand wheel is inserted into a spring box and sleeves the valve rod; the upper end part of the valve rod is in a square shaft structure; the hand wheel is provided with a square hole along an axis; and the valve rod is driven by the hand wheel to rotate. The beneficial effects of the utility model are that the mechanism provided by the utility model is huge in bearing capacity, and is reliable in operation; the mechanism is suitable for a quick-motion protection valve which needs automatic control and a mechanical arm operation mechanism, and is also suitable for application occasions which have high requirements for valves for medium-voltage and high-voltage protection; and a corresponding quick-closing valve and a corresponding quick-opening valve can be designed through the mechanism.
Description
Technical field
The utility model relates to mechanical equipment technical field, refers in particular to the downward quick-acting mechanism of a kind of valve rod.
Background technique
At present, for known fast valve, quick-acting valve, be generally to utilize the pneumatic servo cylinder of single effect to directly act on valve rod to realize the fast opening and closing of valve, or utilize beidirectional pneumatic servo cylinder indirectly-acting in valve rod, valve to be opened and closed rapidly.At present, use the valve of Zhe Lei stem movement mechanism formation, all can realize automatic fast pass or automatic speed and open function, but not there is mechanism hand behaviour function; Once robot control system(RCS) lost efficacy, valve quick-acting function cannot be realized, and application system Security cannot be guaranteed; Therefore, the valve forming with Zhe Lei stem movement mechanism, not very good for the place that security requirement is high; Because the mechanical structure of Zhe Lei stem movement mechanism is limit, want by its structure is carried out to transformation way again, very difficult realization can have automatic quick-action and mechanism hand behaviour quick-acting function simultaneously.
Summary of the invention
The purpose of this utility model is to provide the downward quick-acting mechanism of a kind of valve rod, overcomes existing fast valve, quick-acting valve, cannot realize the deficiency that possesses robotic manipulation quick-acting function in possessing automatic quick-acting function.
The purpose of this utility model realizes as follows: the downward quick-acting mechanism of a kind of valve rod, mainly comprises handwheel, hand wheel shaft, valve rod, sliding nut, axis, handle, feather key plate, spring, spring case lid, spring casing, flap, bearing, end cap; It is characterized in that: flap is positioned on the lower end of valve rod, the valve rod that flap is housed penetrates and arrives spring box from the bottom of spring casing, in spring box, sliding nut screws in and is screwed on valve rod, feather key plate inserts in the longitudinal groove of sliding nut one side through the side rectangular hole of spring casing, nut can not be rotated, can only move, feather key plate is screwed on the sidewall of spring casing; Axis is arranged in the horizontal axle sleeve of spring box, and the two ends of axis are bumped into bearing, and then end cap is set up at the two ends of axle, handle is positioned on one end of axis; Sliding nut has in the horizontal direction and carves type groove near axis one side, corresponding axis and sliding nut contact segment are for carving profile shaft structure with it, by rotating axis, axis can be screwed in the type of the carving groove of sliding nut, now will make sliding nut can not carry out axial motion; Spring is loaded in the circular groove of nut, spring is fastened with spring case lid, and spring case lid is connected with bolt with spring casing; Handwheel and hand wheel shaft are linked into an integrated entity with nut, then hand wheel shaft is inserted in spring box, now hand wheel shaft can be enclosed within on valve rod, and the upper end part of valve rod is square axle structure, and hand wheel shaft has square hole along axis, can make valve rod rotate by rotating handwheel.
Described valve rod upper end is square structure, uses the hand wheel shaft that has a square hole along axis to drive, and realizes and rotating.
The upper-end surface of sliding nut has the circular groove that fixing spring is used, and has breach in the inner side of circular groove, uses for the installation of nut itself; One side of nut cylndrical surface has a longitudinal groove, being blocked and can not rotate with feather key plate; The opposite side along continuous straight runs of cylndrical surface has wedge groove, and a limit of wedge groove is circular arc, and another limit is straight line, and carving profile shaft can screw in groove along arc-shaped edges, and sliding nut is blocked.
The shaft part that contacts of described axis and sliding nut wedge groove is one section and carves profile shaft structure, it is non-completely circular structure, a limit in its cross section is circular arc, another two limits are straight line, by the rotation of axle, the arc-shaped edges of axle screws in the type of the carving groove of sliding nut along the arc-shaped edges of sliding nut, and one of them straight line leans against sliding nut and carves on the straight line of type groove; The two ends of axis are that square axle structure or circular shaft add bond structure, and one end is wherein for the handle of installation manipulator behaviour use, and the other end is for installing the driving bindiny mechanism of automatic manipulation use.
Described flap is socketed in the lower end of valve rod with pressure ring, pressure ring, blocks pressure ring to prevent that it is loosening with back-up ring with being threaded with flap; Pressure ring and valve rod are Spielpassung, and valve rod and flap can relatively rotate; The sealing surface of flap is in the lower end of flap, and this valve flap structure makes to design quick-closing valve door with the downward quick-acting mechanism of this valve rod.
Described flap is fixed on valve rod by the mode being threaded, and flap is blocked with back-up ring, prevents that it is loosening; Sealing surface is in the upper end of flap, and this valve flap structure makes to design quick open valve with the downward quick-acting mechanism of this valve rod.
The beneficial effects of the utility model are: this mechanism can move downward valve rod with automated manner fast, can valve rod be moved downward rapidly in mechanism hand behaviour's mode again; This model utility valve rod quick-acting mechanism bearing capacity is large, reliable in action; Be applicable to needs automatically to control, and has again the instant protection valve of mechanism hand behaviour mechanism, is applicable to the high application places of security requirement of centering pressure and high voltage protective valve; Utilize this mechanism can design corresponding quick-closing valve and quick-opening valve.
accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model and the enforcement illustration of realizing quick-closing valve.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the enforcement illustration of realizing quick-opening valve.
Fig. 4 is sliding nut structural representation plan view.
Fig. 5 is sliding nut structural representation left view.
Fig. 6 is sliding nut structural representation right elevation.
Fig. 7 is clamping shaft structure schematic diagram.
Fig. 8 is that clamping shaft structure A is to schematic cross-section.
Fig. 9 is feather key plate structure schematic diagram plan view.
Figure 10 is feather key plate structure schematic diagram left view.
Figure 11 is sliding nut and axis matching relationship the first example structure schematic diagram.
Figure 12 is sliding nut and axis matching relationship the second example structure schematic diagram.
1-handwheel in figure; 2-hand wheel shaft; 3-valve rod; 4-sliding nut; 5-axis; 6-handle; 7-feather key plate; 8-spring; 9-spring case lid; 10-spring casing; 11-flap; 12-pressure ring; 13-back-up ring; 14-valve seat; 15-valve body; 16-valve rod catch ring; 17-catch ring bearing; 18-bearing; 19 end caps.
embodiment:
With reference to accompanying drawing, the downward quick-acting mechanism of a kind of valve rod, mainly comprises handwheel 1, hand wheel shaft 2, valve rod 3, sliding nut 4, axis 5, handle 6, feather key plate 7, spring 8, spring case lid 9, spring casing 10, flap 11, bearing 18, end cap 19.
Described valve rod 3 upper ends are square structure, use the hand wheel shaft 2 that has a square hole along axis to drive, and realize and rotating.
The upper-end surface of sliding nut 4 has the circular groove that fixing spring is used, and has breach in the inner side of circular groove, uses for the installation of nut itself; One side of nut cylndrical surface has a longitudinal groove, being blocked and can not rotate with feather key plate 7; The opposite side along continuous straight runs of cylndrical surface has wedge groove, and a limit of wedge groove is circular arc, and another limit is straight line, and carving profile shaft can screw in groove along arc-shaped edges, and sliding nut 4 is blocked.
The shaft part that contacts of described axis 5 and sliding nut 4 wedge grooves is one section and carves profile shaft structure, it is non-completely circular structure, a limit in its cross section is circular arc, another two limits are straight line, by the rotation of axle, the arc-shaped edges of axle screws in the type of the carving groove of sliding nut 4 along the arc-shaped edges of sliding nut 4, and one of them straight line leans against sliding nut 4 and carves on the straight line of type groove; The two ends of axis are that square axle structure or circular shaft add bond structure, and one end is wherein for the handle of installation manipulator behaviour use, and the other end is for installing the driving bindiny mechanism of automatic manipulation use.
Embodiment one: the lower end that with pressure ring 12, flap 11 is socketed in to valve rod, pressure ring 12 is threaded with flap 11 use, and back-up ring 13 is embedded in the inner card cage ring of flap, prevents that pressure ring 12 is loosening, pressure ring 12 is Spielpassung with valve rod 3, and valve rod can rotate relative to flap.Valve rod penetrates and arrives spring box from the bottom of spring casing 10, in spring box, sliding nut 4 screws on valve rod, feather key plate 7 inserts in the longitudinal groove of nut 4 one sides through the side rectangular hole of spring casing 10, sliding nut 4 can not be rotated, can only move, feather key plate 7 is screwed on spring casing 10.Axis 5 is arranged in the horizontal axle sleeve of spring box, and the two ends of axis 5 are bumped into bearing 18, and then end cap 19 is set up at the two ends of axle.Sliding nut 4 has in the horizontal direction and carves type groove near axis 5 one sides, corresponding axis 5 and sliding nut 4 contact segments are for carving profile shaft structure with it, by rotating axis 5, axis 5 can be screwed in the type of the carving groove of nut 4, now will make nut 4 can not carry out axial motion.Sliding nut 4 upper ends have the circular groove for shock mount 8, spring 8 are installed in the groove of sliding nut 4, spring 8 are fastened with spring case lid 9, and spring case lid 9 is connected with spring casing 10 use bolts.First handwheel 1 and hand wheel shaft 2 use nuts are linked into an integrated entity, then hand wheel shaft 2 is inserted in spring box, now hand wheel shaft 2 can be enclosed within on valve rod 3, and the upper end part of valve rod 3 is square axle structure, and hand wheel shaft 2 has square hole along axis, can make valve rod 3 rotate by rotating handwheel 1.
Fig. 4,5,6 is plan view, left view and the right elevation of sliding nut 4, the top of the type of the carving groove of the nut in figure is arc structure, lower end is linear structure, and carving in profile shaft section can the screw in nut type of carving groove by turning clockwise of corresponding axis 5, blocks sliding nut 4.See Figure 12, also nut 4 can being carved to type groove, to be designed to top be straight line, and bottom is circular arc, now by being rotated counterclockwise in the type of the carving groove that can screw in nut.
Fig. 7,8 is the structural representation of axis 5, with the shaft part of sliding nut 4 contact segments be that circular arc is carved profile shaft structure.
Fig. 9,10 is the structural representation of feather key plate.
The top that Figure 11 has described sliding nut 4 wedge grooves is circular arc, is this structure of straight line below, with the screw-in matching relationship of carving type axis.
The top that Figure 12 has described sliding nut 4 wedge grooves is straight line, is this structure of circular arc below, with the screw-in matching relationship of carving type axis.
Fig. 1, in describing valve rod quick-acting mechanism, has also described a kind of quick-closing valve door embodiment who forms with such valve rod quick-acting mechanism, and its working principle is as follows:
When valve rod 3 moves downward with flap 11, while arriving the sealing surface of valve seat, valve is in closed condition, now rotate handwheel 1 towards a direction, continue throttle down, because now valve is in closed condition, 3 of valve rods can rotate, valve rod 3 and flap 11 all can down not move again, sliding nut 4 can move upward, and is rotated further handwheel 1, until sliding nut 4 is withstood by spring box upper cover 9, handwheel 1 cannot rotate again, and spring 8 is compacted; Now rotating axis 5 by handle 6 makes, in its wedge groove that screws in sliding nut 4, sliding nut 4 to be pinned; Now rotate backward handwheel 1, valve rod 3 is risen together with flap 11, until flap 11 upper ends are withstood by the lower edge of spring casing 10, cannot rotate again handwheel 1, illustrate that now valve is fully opened; In the time that needs promptly close valve, or rotate backward axis 5 by handle 6, or rotate backward axis 5 at the other end of axis 5 by automechanism, axis 5 and sliding nut 4 news speed are thrown off, sliding nut 4 and valve rod 3 are interrogated speed and are moved downward under the effect of spring 8, until throttle down.
Embodiment two: present embodiment is described in conjunction with Fig. 3.The lower sealing surface of the valve seat 14 on the flap 11 on valve rod 3 on sealing surface and valve cooperatively interacts and has formed a quick open valve.The structural difference of present embodiment and mode of execution one, is first the structure of flap 11 and different from the means of fixation of valve rod, secondly separately needs the space that moves downward of extra catch ring restriction valve rod; It is fixing that flap 11 and valve rod 3 are threaded connection, and block flap with back-up ring 13, and it can not be become flexible; Catch ring 16 is first positioned on catch ring bearing 17, then catch ring bearing 17 is threaded connection and is arranged on valve body 15.The working principle of present embodiment and mode of execution one is slightly different, when rotation handwheel 1 makes valve rod 3 move downward together with flap 11, valve rod 3 is to be blocked ring 16 to stop rather than stopped by valve seat, is now rotated further handwheel, valve rod is to rotate on catch ring, and now sliding nut moves upward; While rotating backward handwheel, can be until valve closing, rather than stopped by the lower edge of spring casing.
Claims (6)
1. the downward quick-acting mechanism of valve rod, mainly comprise handwheel (1), hand wheel shaft (2), valve rod (3), sliding nut (4), axis (5), handle (6), feather key plate (7), spring (8), spring case lid (9), spring casing (10), flap (11), bearing (18), end cap (19), it is characterized in that: flap (11) is positioned on the lower end of valve rod, the valve rod (3) that flap (11) are housed penetrates and arrives spring box from the bottom of spring casing (10), sliding nut in spring box (4) screws in and is screwed on valve rod, feather key plate (7) inserts in the longitudinal groove of sliding nut (4) one sides through the side rectangular hole of spring casing (10), nut (4) can not be rotated, can only move, feather key plate (7) is screwed on the sidewall of spring casing (10), axis (5) is arranged in the horizontal axle sleeve of spring box, and the two ends of axis (5) are bumped into bearing (18), and then end cap (19) is set up at the two ends of axle (5), and handle (6) is positioned on one end of axis (5), sliding nut (4) has in the horizontal direction and carves type groove near axis (5) one sides, corresponding axis (5) and sliding nut (4) contact segment are for carving profile shaft structure with it, by rotating axis (5), axis (5) can be screwed in the type of the carving groove of sliding nut (4), now will make sliding nut (4) can not carry out axial motion, in the circular groove of the nut (4) that spring (8) is loaded on, spring (8) is fastened with spring case lid (9), spring case lid (9) is connected with bolt with spring casing (10), handwheel (1) and hand wheel shaft (2) are linked into an integrated entity with nut, again hand wheel shaft (2) is inserted in spring box, now hand wheel shaft (2) can be enclosed within on valve rod (3), the upper end part of valve rod (3) is square axle structure, and hand wheel shaft (2) has square hole along axis, can make valve rod (3) rotate by rotating handwheel (1).
2. the downward quick-acting mechanism of a kind of valve rod according to claim 1, is characterized in that: described valve rod (3) upper end is square structure, uses the hand wheel shaft (2) that has a square hole along axis to drive, and realizes and rotating.
3. the downward quick-acting mechanism of a kind of valve rod according to claim 1, is characterized in that: the upper-end surface of sliding nut (4) has the circular groove that fixing spring is used, and has breach in the inner side of circular groove, uses for the installation of nut itself; One side of nut cylndrical surface has a longitudinal groove, being blocked and can not rotate with feather key plate (7); The opposite side along continuous straight runs of cylndrical surface has wedge groove, and a limit of wedge groove is circular arc, and another limit is straight line, and carving profile shaft can screw in groove along arc-shaped edges, and sliding nut (4) is blocked.
4. the downward quick-acting mechanism of a kind of valve rod according to claim 1, it is characterized in that: the shaft part that contacts of described axis (5) and sliding nut (4) wedge groove is one section and carves profile shaft structure, it is non-completely circular structure, a limit in its cross section is circular arc, another two limits are straight line, by the rotation of axle, the arc-shaped edges of axle screws in the type of the carving groove of sliding nut (4) along the arc-shaped edges of sliding nut (4), and one of them straight line leans against sliding nut (4) and carves on the straight line of type groove; The two ends of axis are that square axle structure or circular shaft add bond structure, and one end is wherein for the handle of installation manipulator behaviour use, and the other end is for installing the driving bindiny mechanism of automatic manipulation use.
5. the downward quick-acting mechanism of a kind of valve rod according to claim 1, it is characterized in that: described flap (11) pressure ring (12) is socketed in the lower end of valve rod, pressure ring (12), blocks pressure ring (12) to prevent that it is loosening with back-up ring (13) with being threaded with flap; Pressure ring (12) is Spielpassung with valve rod (3), and valve rod (3) can relatively rotate with flap; The sealing surface of flap is in the lower end of flap, and this valve flap structure makes to design quick-closing valve door with the downward quick-acting mechanism of this valve rod.
6. the downward quick-acting mechanism of a kind of valve rod according to claim 1, is characterized in that: it is upper that described flap (11) is fixed on valve rod (3) by the mode being threaded, and flap is blocked with back-up ring (13), prevents that it from becoming flexible; Sealing surface is in the upper end of flap, and this valve flap structure makes to design quick open valve with the downward quick-acting mechanism of this valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885666.0U CN203686164U (en) | 2013-12-31 | 2013-12-31 | Mechanism for downward quick motion of valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885666.0U CN203686164U (en) | 2013-12-31 | 2013-12-31 | Mechanism for downward quick motion of valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203686164U true CN203686164U (en) | 2014-07-02 |
Family
ID=51008064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320885666.0U Withdrawn - After Issue CN203686164U (en) | 2013-12-31 | 2013-12-31 | Mechanism for downward quick motion of valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203686164U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671950A (en) * | 2013-12-31 | 2014-03-26 | 中国船舶重工集团公司第七�三研究所 | Valve rod downward quick-acting mechanism of valve |
| CN105135112A (en) * | 2015-08-21 | 2015-12-09 | 樱田农机科技（泰州）有限公司 | Spraying nozzle connector with reset mechanism for plant protection spraying machine |
-
2013
- 2013-12-31 CN CN201320885666.0U patent/CN203686164U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671950A (en) * | 2013-12-31 | 2014-03-26 | 中国船舶重工集团公司第七�三研究所 | Valve rod downward quick-acting mechanism of valve |
| CN105135112A (en) * | 2015-08-21 | 2015-12-09 | 樱田农机科技（泰州）有限公司 | Spraying nozzle connector with reset mechanism for plant protection spraying machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140702 Effective date of abandoning: 20150902 |
|
| RGAV | Abandon patent right to avoid regrant |