CN202901330U - Stop valve - Google Patents
Stop valve Download PDFInfo
- Publication number
- CN202901330U CN202901330U CN 201220517789 CN201220517789U CN202901330U CN 202901330 U CN202901330 U CN 202901330U CN 201220517789 CN201220517789 CN 201220517789 CN 201220517789 U CN201220517789 U CN 201220517789U CN 202901330 U CN202901330 U CN 202901330U
- Authority
- CN
- China
- Prior art keywords
- valve
- active chamber
- valve seat
- valve rod
- inlet pipe
- 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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- Lift Valve (AREA)
Abstract
The utility model relates to a stop valve which comprises a valve seat, a valve rod and a valve cover. The valve seat comprises a valve seat body. An inlet pipe body and an outlet pipe body are arranged on the valve seat body. A fence is arranged on the bottom of a working cavity in the valve seat body. A fence slot is formed between two sealing rods. The fence divides the working cavity into an inlet pipe working cavity and an outlet pipe working cavity. The valve rod is arranged in the working cavity. A first sealing rod matched with the inlet pipe working cavity and a second sealing rod arranged in the outlet pipe working cavity are arranged on the lower end of the valve rod. The length of the first sealing rod is smaller than the length of the second sealing rod. A switch for controlling vertical motion of the valve rod is arranged on the upper end of the valve cover. Due to the fact that the heights of two sealing rods are diverse, the first sealing rod is shorter than the second sealing rod, whether it is in the process of opening or closing the valve, complete opening or closing can be achieved after passing through the inlet pipe working cavity and the outlet pipe working cavity, and secure use of the stop valve in use is ensured.
Description
Technical field
The utility model relates to a kind of stop valve.
Background technique
Traditional stop valve is in the process of opening, and the impact force of moment is larger, easily the valve rod of sealing is caused damage, affects the working life of stop valve.
The model utility content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, a kind of stop valve be provided, solve in the past stop valve because design unreasonable, stop valve in opening process, the easy impaired defective of valve rod.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of stop valve, comprise valve seat, valve rod and valve gap, described valve seat has the valve seat body, be provided with the inlet pipe body on the described valve seat body and go out body, the described intrinsic active chamber of the valve seat bottom that is positioned at is provided with jube, form the jube groove between two seal bar, described jube is divided into active chamber the inlet pipe active chamber and goes out to manage active chamber
Be provided with valve rod in the described active chamber, the lower end of described valve rod is provided with the first seal bar that matches with the inlet pipe active chamber and is arranged on out the second seal bar in the pipe active chamber, the length of described the first seal bar is less than the length of the second seal bar, described valve gap upper end is provided with the switch that moves up and down for the control valve rod
When switch cut out, valve rod moved downward in the effect of pressure, and the second seal bar of valve rod and the first seal bar enter out pipe active chamber and inlet pipe active chamber successively, and jube inserts in the jube groove;
When switch open, valve rod moves upward under the effect of pressure, and coolant is introduced into the inlet pipe active chamber, then enters out the pipe active chamber, flows out at last valve seat.
Further, the upper end of described valve seat body is provided with installation step, and described step bottom surface arranges the first seal ring at the formed circle face of valve seat body, and described the first seal ring seals mutually with the bottom surface of valve gap and contacts.
Further, be provided with the second seal ring between described valve gap and the valve rod, described the second seal ring seals mutually with the outer wall of valve rod and contacts.
The beneficial effects of the utility model are: be divided into the first active chamber and the second active chamber at the active chamber with valve seat, cooperate the first seal bar with matching and the second seal bar on the valve rod, two seal bar are uneven, the first seal bar is shorter than the second seal bar, no matter be in valve opening or closing process, all need to guarantee stop valve safe handling in use through completely opening and closing after two active chambers.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 be stop valve partly cut open structural representation;
Wherein: 1, valve seat body, 2, the inlet pipe body, 3, go out body, 4, valve rod, 5, valve gap, the 6, first seal ring, the 7, second seal ring, 8, switch, the 41, first seal bar, the 42, second seal bar.
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic representation that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.
A kind of stop valve as shown in Figure 1, comprise valve seat, valve rod 4 and valve gap 5, described valve seat has valve seat body 1, be provided with inlet pipe body 2 on the valve seat body 1 and go out body 3, the active chamber bottom that is positioned at valve seat body 1 is provided with jube, jube is divided into active chamber the inlet pipe active chamber and goes out to manage active chamber
Be provided with valve rod 4 in the active chamber, the lower end of valve rod 4 is provided with the first seal bar 41 that matches with the inlet pipe active chamber and is arranged on out the second seal bar 42 in the pipe active chamber, the length of the first seal bar 41 is less than the length of the second seal bar 42, form the jube groove between two seal bar, valve gap 5 upper ends are provided with the switch 8 that moves up and down for control valve rod 4
When switch 8 cut out, valve rod 4 moved downward in the effect of pressure, and the second seal bar 42 and first seal bar 41 of valve rod 4 enter out pipe active chamber and inlet pipe active chamber successively, and jube inserts in the jube groove;
When switch 8 was opened, valve rod 4 moved upward under the effect of pressure, and coolant is introduced into the inlet pipe active chamber, then enters out the pipe active chamber, flows out at last valve seat.
Switch 8 essence are a block pressur plate, when valve rod 4 need to move downward, press a block pressur plate, and the valve rod that is is in closed condition.
In order to improve the sealability between valve gap 5 and the valve seat, the upper end of valve seat body 1 is provided with installation step, and the step bottom surface arranges the first seal ring 6, the first seal rings 6 at valve seat body 1 formed circle face and seals mutually with the bottom surface of valve gap 5 and contact.
In order to improve the sealing effect between valve rod 4 and the valve gap 5, be provided with the second seal ring 7, the second seal rings 7 between valve gap 5 and the valve rod 4 and seal mutually with the outer wall of valve rod 4 and contact.
Take above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, the relevant staff can in the scope that does not depart from this model utility technological thought, carry out various change and modification fully.The technical scope of this model utility is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (3)
1. stop valve, it is characterized in that: comprise valve seat, valve rod (4) and valve gap (5), described valve seat has valve seat body (1), be provided with inlet pipe body (2) on the described valve seat body (1) and go out body (3), the described active chamber bottom that is positioned at valve seat body (1) is provided with jube, described jube is divided into active chamber the inlet pipe active chamber and goes out to manage active chamber
Be provided with valve rod (4) in the described active chamber, the lower end of described valve rod (4) is provided with the first seal bar (41) that matches with the inlet pipe active chamber and is arranged on out interior the second seal bar (42) of pipe active chamber, the length of described the first seal bar (41) is less than the length of the second seal bar (42), form the jube groove between two seal bar, described valve gap (5) upper end is provided with the switch (8) that moves up and down for control valve rod (4)
When switch (8) when closing, valve rod (4) moves downward in the effect of pressure, and the second seal bar (42) and first seal bar (41) of valve rod (4) enter out pipe active chamber and inlet pipe active chamber successively, and jube inserts in the jube groove;
When switch (8) was opened, valve rod (4) moved upward under the effect of pressure, and coolant is introduced into the inlet pipe active chamber, then enters out the pipe active chamber, flows out at last valve seat.
2. a kind of stop valve according to claim 1, it is characterized in that: the upper end of described valve seat body (1) is provided with installation step, described step bottom surface arranges the first seal ring (6) at the formed circle face of valve seat body (1), and described the first seal ring (6) seals mutually with the bottom surface of valve gap (5) and contacts.
3. a kind of stop valve according to claim 1, it is characterized in that: be provided with the second seal ring (7) between described valve gap (5) and the valve rod (4), described the second seal ring (7) seals mutually with the outer wall of valve rod (4) and contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220517789 CN202901330U (en) | 2012-10-10 | 2012-10-10 | Stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220517789 CN202901330U (en) | 2012-10-10 | 2012-10-10 | Stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202901330U true CN202901330U (en) | 2013-04-24 |
Family
ID=48122001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220517789 Expired - Fee Related CN202901330U (en) | 2012-10-10 | 2012-10-10 | Stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202901330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042089A (en) * | 2015-05-29 | 2015-11-11 | 苏州纽威阀门股份有限公司 | Stop valve |
-
2012
- 2012-10-10 CN CN 201220517789 patent/CN202901330U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042089A (en) * | 2015-05-29 | 2015-11-11 | 苏州纽威阀门股份有限公司 | Stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20131010 |