CN203272809U - Automatic centering internal thread stop valve - Google Patents
Automatic centering internal thread stop valve Download PDFInfo
- Publication number
- CN203272809U CN203272809U CN 201320317231 CN201320317231U CN203272809U CN 203272809 U CN203272809 U CN 203272809U CN 201320317231 CN201320317231 CN 201320317231 CN 201320317231 U CN201320317231 U CN 201320317231U CN 203272809 U CN203272809 U CN 203272809U
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- CN
- China
- Prior art keywords
- valve
- flap
- valve rod
- automatic centering
- pressing sleeve
- 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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Abstract
The utility model provides an automatic centering internal thread stop valve which comprises a valve body, a valve clack, a valve rod and a valve deck, wherein the valve body is connected with the valve deck through threads, a valve cavity is formed inside the valve body, the valve clack is arranged inside the valve cavity, the valve clack is connected with one end of the valve rod, and the other end of the valve rod extends out of the valve deck to be connected with a hand wheel. A packing metal cushion, a packing set and a packing pressing sleeve are arranged on the periphery, between the valve rod and the valve deck, of the valve rod in sequence in a sleeved mode. External guiding steps are arranged on the side face of the packing pressing sleeve. A packing gland is arranged outside the packing pressing sleeve. Internal steps matched with the external guiding steps are arranged on the packing gland. According to the automatic centering internal thread stop valve, a step guiding structure is applied to the packing pressing sleeve, therefore, the effects that the deflection of the valve rod is small and the centering property of the valve rod is good can be ensured, and the valve clack can be centered conveniently.
Description
Technical field
The utility model belongs to the stop valve field, is specifically related to a kind of automatic centering inside screw stop valve.
Background technique
Stop valve refers to the valve that closure member (flap) moves along the valve seat center line, and the open-shut device of stop valve is the flap of stopper, and sealing surface is plane or the conical surface, and flap is along the center line moving linearly of valve seat.According to this mobile form of flap, the variation of valve seat port is and flap stroke relation in direct ratio.Because valve rod unlatching or the shutoff stroke of such valve are relatively short, and have cutting function very reliably, due to the variation of valve seat port and the stroke relation in direct ratio of flap, be very suitable for the adjusting to flow again.But present stop valve is when installing and using, and centering relatively is difficult to ensure card.
The model utility content
The utility model provides a kind of automatic centering inside screw stop valve that guarantees that the valve rod beat is less, centering is good for above-mentioned the deficiencies in the prior art.
The utility model is achieved by the following technical solution:
A kind of automatic centering inside screw stop valve is characterized in that, comprises valve body, flap, valve rod and valve gap, valve body and valve gap are threaded connection, and are provided with valve pocket in valve body, are provided with flap in valve pocket, described flap is connected with an end of valve rod, and the other end of valve rod stretches out valve gap and is connected with handwheel; Between valve rod and valve gap, the periphery of valve rod is set with filler metal pad, filler group and filler pressing sleeve successively, the side of filler pressing sleeve is provided with outer guiding step, the filler pressing sleeve outer installment has Gland, is provided with the interior step that coordinates with outer guiding step on Gland.
Further setting of the present utility model is, the joint of valve body and valve gap is provided with sealing gasket.
Further setting of the present utility model is, the flap head is spherical arc, is provided with the contacting point of flap the cone shape hole that matches with spherical arc on valve body.
Further setting of the present utility model is, the linkage structure between valve rod and flap is R type roll extrusion locking structure.
Automatic centering inside screw stop valve described in the utility model has following beneficial effect:
1, in the utility model, filler pressing sleeve has adopted the step guide structure, can guarantee that the valve rod beat is less, and centering is good, can make flap be convenient to centering.
2, in the utility model, the flap head adopts spherical arc to contact with the valve body cone shape hole, has the function of automatic capturing, is convenient to sealing reliable, seals required power little.
3, in the utility model, valve rod and flap adopt R type roll extrusion locking structure, and being convenient to lock the jail again can flexible rotating.
Description of drawings
Fig. 1 is the structural drawing of automatic centering inside screw stop valve described in the utility model;
In figure: valve body 1, flap 2, valve rod 3, valve gap 4, sealing gasket 5, filler metal pad 6, filler group 7, filler pressing sleeve 8, Gland 9, handwheel 10.
Embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the utility model provides a kind of automatic centering inside screw stop valve, comprises valve body 1, flap 2, valve rod 3 and valve gap 4, and valve body 1 is threaded connection with valve gap 4, and the joint is provided with sealing gasket 5.Be provided with valve pocket in valve body 1, be provided with flap 2 in valve pocket, described flap 2 is connected with an end of valve rod 3, and the other end of valve rod 3 stretches out valve gap 4 and is connected with handwheel 10; Between valve rod 3 and valve gap 4, the periphery of valve rod 3 is set with filler metal pad 6, filler group 7 and filler pressing sleeve 8 successively, the side of filler pressing sleeve 8 is provided with outer guiding step, filler pressing sleeve 8 outer installment have Gland 9, be provided with the interior step that coordinates with outer guiding step on Gland 9, the beat that can well guarantee like this valve rod 3 is less, and centering is good.
Reliable in order to guarantee valve seal, flap 2 heads are spherical arc, are provided with the contacting point of flap 2 cone shape hole that matches with spherical arc on valve body 1, have namely adopted cone-shaped seal structure.
For make can lock the jail between valve rod 3 and flap 2 again can flexible rotating, the linkage structure between valve rod 3 and flap 2 is R type roll extrusion locking structure.
The above is preferred embodiment of the present utility model, and all equivalent variations of doing according to the utility model claim all should belong to protection domain of the present utility model.
Claims (4)
1. automatic centering inside screw stop valve, it is characterized in that, comprise valve body (1), flap (2), valve rod (3) and valve gap (4), valve body (1) is threaded connection with valve gap (4), valve body is provided with valve pocket in (1), be provided with flap (2) in valve pocket, described flap (2) is connected with an end of valve rod (3), and the other end of valve rod (3) stretches out valve gap (4) and is connected with handwheel (10); Between valve rod (3) and valve gap (4), the periphery of valve rod (3) is set with filler metal pad (6), filler group (7) and filler pressing sleeve (8) successively, the side of filler pressing sleeve (8) is provided with outer guiding step, filler pressing sleeve (8) outer installment has Gland (9), is provided with the interior step that coordinates with outer guiding step on Gland (9).
2. automatic centering inside screw stop valve according to claim 1, is characterized in that, valve body (1) is provided with sealing gasket (5) with the joint of valve gap (4).
3. automatic centering inside screw stop valve according to claim 1, is characterized in that, flap (2) head is spherical arc, and valve body (1) is upper is provided with the contacting point of flap (2) cone shape hole that matches with spherical arc.
4. automatic centering inside screw stop valve according to claim 1, is characterized in that, the linkage structure between valve rod (3) and flap (2) is R type roll extrusion locking structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320317231 CN203272809U (en) | 2013-06-03 | 2013-06-03 | Automatic centering internal thread stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320317231 CN203272809U (en) | 2013-06-03 | 2013-06-03 | Automatic centering internal thread stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203272809U true CN203272809U (en) | 2013-11-06 |
Family
ID=49503222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320317231 Expired - Fee Related CN203272809U (en) | 2013-06-03 | 2013-06-03 | Automatic centering internal thread stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203272809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461507A (en) * | 2016-12-30 | 2017-12-12 | 郴州万墨环保科技有限公司 | A kind of self compensation vacuum valve |
-
2013
- 2013-06-03 CN CN 201320317231 patent/CN203272809U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461507A (en) * | 2016-12-30 | 2017-12-12 | 郴州万墨环保科技有限公司 | A kind of self compensation vacuum 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: 20131106 Termination date: 20140603 |