CN201621363U - Safety protection device of manual upward-expansion type discharge valve - Google Patents
Safety protection device of manual upward-expansion type discharge valve Download PDFInfo
- Publication number
- CN201621363U CN201621363U CN2009202663808U CN200920266380U CN201621363U CN 201621363 U CN201621363 U CN 201621363U CN 2009202663808 U CN2009202663808 U CN 2009202663808U CN 200920266380 U CN200920266380 U CN 200920266380U CN 201621363 U CN201621363 U CN 201621363U
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- Prior art keywords
- valve
- protection device
- safety protection
- safety
- safety helmet
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Abstract
The utility model discloses a safety protection device of a manual upward-expansion type discharge valve. In the technical scheme, the threaded end of a valve stem is provided with a position indicating safety cap or a position indicating safety stopper, thereby improving the limiting and safety protection device of the manual upward-expansion type discharge valve. The opening of the valve can be determined through observing the relative positions of the opening end of the 'position indicating safety cap' or the 'position indicating safety stopper' and the end face of a limit part. Since the cross-sectional area of the middle section of the valve stem is not reduced, the strength of the valve stem is not lowered. If the sealing is poor when the valve is opened, the user can adopt a wrench for in-situ and prompt adjustment of the nut so as to tightly press the packing gland. The utility model has the advantages that the limiting device can not affect the prompt and in-situ adjustment of the sealing of the valve stem and the strength of the valve stem and the maximum opening of the valve can be indicated to prevent the bracket from being damaged.
Description
Technical field
The utility model relates to a kind of manual top extending type dispensing valve, specifically be a kind of manual top extending type discharging valve safety protection device it improved spacing, the safety protection device of this valve.
Background technique
Popular manual top extending type discharging valve is seen Fig. 1 at present.When running into the liquid state material of thickness, because unlatching moment is very big, the operator uses F-shaped wrench always, for quick blowing, need open the conducting cross section of big valve.Because this kind valve does not have spacing indicating device, do not know whether valve has arrived maximum open position, may be rotated further handwheel 2, under the effect of big moment, screw pair on handwheel 2 and the valve rod 16 is rotated by the flat key groove of valve rod 16, dive key 15 restrictions, can only axial translation.When valve rod 16 had been moved beyond the enable possition, flat key groove on the valve rod promoted dive key 4, finally can be set screw 5 bendings, even it is broken that the part top of support 11 of fastening positioning screwn 5 will be installed, causes the consequence of this kind of damage valve.
In order to solve this type of problem, the someone has designed a kind of manual top extending type discharging valve that spacing clamping plate are arranged, and sees Fig. 2.It is to make local flatly with milling on the valve rod 16, and with hexagon socket head cap screw 17 fixing clamping plates 18, when valve rod 16 moved to upper limit position, the indication valve was opened to maximum position, can prevent aforementioned accident.This device also has following shortcoming:
A, valve rod 16 are most important application of force parts, mill mechanical strength flat, that the brill fixed screw holes all can reduce valve rod 16.
B during Open valve, reveals as finding the valve stem seal place, and when needing to regulate Gland 12, the double-threaded screw 8, the nut 7 that compress Gland 12 are hindered by clamping plate 18, hexagon socket head cap screw 17, and various spanners all can't revolve this nut 7, can not regulate sealing.Can only throttle down, after regulate again.Can not be in real time, original position regulates sealing, influence is used and switch life.
C, in order to solve aforesaid shortcoming, necessary overstriking lengthening valve rod 16 adds long stent 11, has wasted material, has increased valve body, has limited using scope.
Summary of the invention
The utility model provides a kind of safety protection device of manual top extending type discharging valve, has solved that limit stoper does not influence in real time, the sealing of original position regulating valve stem, does not influence valve rod intensity, and indication valve maximum open position prevents the impaired new equipment of support.
The utility model is realized with following technological scheme: a kind of safety protection device of manual top extending type discharging valve, and it comprises valve rod, is installed in the Stem Mut of drawing together on the valve rod, round nut and handwheel; Install one at the threaded end of valve rod and show a safety helmet, the described threaded end that shows that a safety helmet is connected by screw and elastic washer.
The beneficial effects of the utility model are: solved that limit stoper does not influence in real time, the sealing of original position regulating valve stem, do not influenced valve rod intensity, indication valve maximum open position has prevented that support is damaged.
Description of drawings
Fig. 1 is manual top extending type discharging valve structural representation;
Fig. 2 is the manual top extending type discharging valve structural representation that spacing clamping plate are arranged;
Fig. 3 has the manual top extending type discharging valve structural representation that shows a safety protection device;
Fig. 4 shows a safety helmet structural representation;
Fig. 5 is the plan view of Fig. 4;
Fig. 6 shows a safety catch structural representation.
Among the figure: 1, round nut, 2, handwheel, 4, dive key, 5, set screw, 7, hexagon nut, 8, double-threaded screw, 11, support, 12, Gland, 14, Stem Mut, 15, dive key, 16, valve rod, 18, fixing clamping plate, 19, show a safety helmet, 20, screw, 21, elastic washer.
Embodiment
To shown in Figure 6, the utility model is to adopt to show that a safety helmet 19, screw 20, elastic washer 21 are installed in valve rod 16 threaded end of manual top extending type discharging valve with reference to Fig. 3.Show the opening end of a safety helmet 19 and the relative position of spacing part end face (but opening travel H), enable possition that just can clear and definite valve.
The length of showing a safety helmet 19 is corresponding with the maximum open position of this valve, is exactly that a safety helmet 19 opening ends that show of tubular will withstand on the section of Stem Mut 14 when valve opening is maximum; Also can show under the condition that a safety helmet 19 internal diameters strengthen, select its opening end to withstand on the round nut 1 or on the wheel hub of handwheel 2.On this position, also keep reasonable clearance between the end of travel of flat key groove and the dive key 4 on the valve rod 19, guarantee that dive key 4 is not subjected to the power of valve rod travel direction, set screw 5 is not by bending, the support 11 that fastening positioning screwn 5 is installed can not be damaged yet, and has guaranteed the safety of valve.
The easiest form is to show a safety catch with showing that a safety helmet 19 adopts, and its installation form can show that the installation form of a safety helmet 19 is identical with employing.
Concrete principle is:
A observes " showing a safety helmet " 19 the opening end and the relative position of spacing part end face, enable possition that just can clear and definite valve.
B, do not push up and during dive key 4 at the upper end of valve rod keyway, 19 opening end contacts with the end face of spacing part " to show a safety helmet ", spacing stressed valve rod 16 by the suffered shearing force of the set screw in the former scheme 5, the screw 20 that changes fixing " showing a safety helmet " 19 into is subjected to pulling force, under identical selection condition, intensity is improved.
C, valve rod 16 stage casing section area do not reduce, and the intensity of valve rod 16 does not have impaired.The tail end of valve rod 16 is selected in the silk hole site that screw 20 is installed, and is the not stressed position of valve rod 16, so the intensity of valve rod 16 does not lower.
D regulates the hexagon nut 7, the double-threaded screw 8 that seal, and their service clearance is not taken by other part.When valve opening, if find poor sealing, can use spanner in position, real-time regulated hexagon nut 7, compress Gland 12.
Claims (4)
1. the safety protection device of a manual top extending type discharging valve; it comprises valve rod (16); be installed in the Stem Mut of drawing together on the valve rod (16) (14); round nut (1) and handwheel (2); it is characterized in that: install one at the threaded end of valve rod (16) and show a safety helmet (19), the described safety helmet (19) that shows is connected the threaded end of (16) by screw (20) and elastic washer (21).
2. the safety protection device of a kind of manual top extending type discharging valve according to claim 1; it is characterized in that: the described safety helmet (19) that shows is a tubular; its length is corresponding with the maximum open position of this valve; promptly when valve opening is maximum, show that the opening end of a safety helmet (19) withstands on the section of Stem Mut (14).
3. the safety protection device of a kind of manual top extending type discharging valve according to claim 2 is characterized in that: the opening end that shows a safety helmet (19) withstand on that round nut (1) is gone up or the wheel hub of handwheel (2) on.
4. the safety protection device of a kind of manual top extending type discharging valve according to claim 1 is characterized in that: described show a safety helmet (19) be one grade fast, shelves are connected the threaded end of (16) soon by screw (20) and elastic washer (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202663808U CN201621363U (en) | 2009-11-11 | 2009-11-11 | Safety protection device of manual upward-expansion type discharge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202663808U CN201621363U (en) | 2009-11-11 | 2009-11-11 | Safety protection device of manual upward-expansion type discharge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201621363U true CN201621363U (en) | 2010-11-03 |
Family
ID=43024818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202663808U Expired - Fee Related CN201621363U (en) | 2009-11-11 | 2009-11-11 | Safety protection device of manual upward-expansion type discharge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201621363U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747734A (en) * | 2014-07-22 | 2015-07-01 | 施荣芳 | Manual upper unfolded type baiting valve |
| CN109724768A (en) * | 2018-12-29 | 2019-05-07 | 中国空气动力研究与发展中心超高速空气动力研究所 | Dynamic Separation device and its application between a kind of hypersonic wind tunnel Stage |
-
2009
- 2009-11-11 CN CN2009202663808U patent/CN201621363U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747734A (en) * | 2014-07-22 | 2015-07-01 | 施荣芳 | Manual upper unfolded type baiting valve |
| CN109724768A (en) * | 2018-12-29 | 2019-05-07 | 中国空气动力研究与发展中心超高速空气动力研究所 | Dynamic Separation device and its application between a kind of hypersonic wind tunnel Stage |
| CN109724768B (en) * | 2018-12-29 | 2020-10-13 | 中国空气动力研究与发展中心超高速空气动力研究所 | Hypersonic wind tunnel model interstage dynamic separation device and application thereof |
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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: 20101103 Termination date: 20171111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |