CN104879517A - Clockwise and anticlockwise twin-twisted safety valve - Google Patents
Clockwise and anticlockwise twin-twisted safety valve Download PDFInfo
- Publication number
- CN104879517A CN104879517A CN201510279449.0A CN201510279449A CN104879517A CN 104879517 A CN104879517 A CN 104879517A CN 201510279449 A CN201510279449 A CN 201510279449A CN 104879517 A CN104879517 A CN 104879517A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve core
- valve body
- core
- nut
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
Abstract
The invention discloses a clockwise and anticlockwise twin-twisted safety valve which comprises a valve body, a valve cover arranged at the upper end of the valve body and a blind plate flange arranged at the lower end of the valve body, wherein an inlet channel and an outlet channel are formed in the valve body; an upper valve core, a middle valve core and a lower valve core are also arranged in the valve body; a connection channel communicated with the inlet channel and the outlet channel is formed in the middle valve core; sealing pads are respectively arranged on the outer sides of the upper valve core and the lower valve core; an upper limiting block matched with the upper valve core is arranged at the upper end in the valve body; a lower limiting block matched with the lower valve core is arranged at the lower end in the valve body; one end of the valve rod is connected with the upper valve core, the middle valve core and the lower valve core; the other end of the valve rod extends out of a nut on the valve cover and is connected with a handle; the nut is connected with the valve cover through a fixing screw.
Description
Technical field
The present invention relates to a kind of pipe-line equipment, particularly relate to a kind of positive and negative bispin Safety valve.
Background technique
In order to the fluid in cutting out pipeline effectively, pipeline all can be provided with valve.Existing valve in use dextrorotation can only open derotation closedown or dextrorotation closedown derotation unlatching, once the damaged rotatable handle in any case of spool all can not fluid in cutting out pipeline, poor safety performance, use inconvenience, cause valve shortening in working life, and usually because excesssive gap easily causes loosening between valve rod and valve gap, control inaccuracy, usage requirement can not be met well.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of positive and negative bispin Safety valve.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: positive and negative bispin Safety valve, comprise: valve body, be arranged on the valve gap of valve body upper end and be arranged on the blank flange of valve body lower end, inlet passage and outlet passage is provided with in described valve body, also upper valve core is provided with in described valve body, middle spool and lower valve core, the connecting passage be interconnected with inlet passage and outlet passage is provided with in described middle spool, sealing gasket is respectively arranged with in the outside of described upper valve core and lower valve core, the upper limit position block cooperatively interacted with upper valve core is provided with in the inner upper end of described valve body, the lower position block cooperatively interacted with lower valve core is provided with in the interior lower end of described valve body, one end of valve rod and upper valve core, middle spool is connected with lower valve core, the nut that the other end of described valve rod stretches out on valve gap is connected with handle, described nut is connected by set screw with between valve gap.
Advantage of the present invention is: above-mentioned positive and negative bispin Safety valve, adopt three spool work, no matter dextrorotation derotation can fluid in time in cutting out pipeline, Safety performance is high, easy to use, the nut on valve rod is connected with valve gap secondary by set screw, reduces rocking of valve rod, valve rod is made to control accurately, to meet usage requirement well.
Accompanying drawing explanation
Fig. 1 is the broken section structural representation of the positive and negative bispin Safety valve of the present invention.
In figure: 1, valve body, 2, valve gap, 3, blank flange, 4, inlet passage, 5, outlet passage, 6, upper valve core, 7, middle spool, 8, lower valve core, 9, connecting passage, 10, sealing gasket, 11, upper limit position block, 12, lower position block, 13, valve rod, 14, nut, 15, handle, 16, set screw.
Embodiment
Particular content of the present invention is described in detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, positive and negative bispin Safety valve, comprise: valve body 1, be arranged on the valve gap 2 of valve body 1 upper end and be arranged on the blank flange 3 of valve body 1 lower end, inlet passage 4 and outlet passage 5 is provided with in described valve body 1, upper valve core 6 is also provided with in described valve body 1, middle spool 7 and lower valve core 8, described upper valve core 6, middle spool 7 and lower valve core 8 are structure as a whole, the connecting passage 9 be interconnected with inlet passage 4 and outlet passage 5 is provided with in described middle spool 7, sealing gasket 10 is respectively arranged with in the outside of described upper valve core 6 and lower valve core 8, the upper limit position block 11 cooperatively interacted with upper valve core 6 is provided with in the inner upper end of described valve body 1, the lower position block 12 cooperatively interacted with lower valve core 8 is provided with in the interior lower end of described valve body 1, one end of valve rod 13 and upper valve core 6, middle spool 7 is connected with lower valve core 8, the nut 14 that the other end of described valve rod 13 stretches out on valve gap 2 is connected with handle 15, described nut 14 is connected by set screw 16 with between valve gap 2.
When above-mentioned positive and negative bispin Safety valve uses, when needs Open valve, dextrorotation handle 15 to neutral position, inlet passage 4 is communicated with outlet passage 5 by the connecting passage 9 now in middle spool 7, fluid expulsion, when needs throttle down, dextrorotation handle 15 can be continued to rotating, upper valve core 6 and upper limit position block 11 are offseted, inlet passage 4 and outlet passage 5 cut off by lower valve core 8, also can derotation handle 15 to origin-location, lower valve core 8 and lower position block 12 are offseted, and inlet passage 4 and outlet passage 5 cut off by upper valve core 6.
Above-mentioned positive and negative bispin Safety valve, adopt three spool work, no matter dextrorotation derotation can fluid in time in cutting out pipeline, Safety performance is high, easy to use, the nut on valve rod is connected with valve gap secondary by set screw, reduces rocking of valve rod, valve rod is made to control accurately, to meet usage requirement well.
Claims (1)
1. positive and negative bispin Safety valve, it is characterized in that: comprising: valve body (1), be arranged on the valve gap (2) of valve body (1) upper end and be arranged on the blank flange (3) of valve body (1) lower end, inlet passage (4) and outlet passage (5) is provided with in described valve body (1), upper valve core (6) is also provided with in described valve body (1), middle spool (7) and lower valve core (8), the connecting passage (9) be interconnected with inlet passage (4) and outlet passage (5) is provided with in described middle spool (7), sealing gasket (10) is respectively arranged with in the outside of described upper valve core (6) and lower valve core (8), the upper limit position block (11) cooperatively interacted with upper valve core (6) is provided with in the inner upper end of described valve body (1), the lower position block (12) cooperatively interacted with lower valve core (8) is provided with in the interior lower end of described valve body (1), one end of valve rod (13) and upper valve core (6), middle spool (7) is connected with lower valve core (8), the nut (14) that the other end of described valve rod (13) stretches out on valve gap (2) is connected with handle (15), be connected by set screw (16) between described nut (14) with valve gap (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510279449.0A CN104879517A (en) | 2015-05-26 | 2015-05-26 | Clockwise and anticlockwise twin-twisted safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510279449.0A CN104879517A (en) | 2015-05-26 | 2015-05-26 | Clockwise and anticlockwise twin-twisted safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104879517A true CN104879517A (en) | 2015-09-02 |
Family
ID=53947127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510279449.0A Pending CN104879517A (en) | 2015-05-26 | 2015-05-26 | Clockwise and anticlockwise twin-twisted safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104879517A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980384A (en) * | 2018-08-27 | 2018-12-11 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of closed type water-saving valve |
-
2015
- 2015-05-26 CN CN201510279449.0A patent/CN104879517A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980384A (en) * | 2018-08-27 | 2018-12-11 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of closed type water-saving valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150902 |