CN102878303A - Sealing valve - Google Patents
Sealing valve Download PDFInfo
- Publication number
- CN102878303A CN102878303A CN201210362894XA CN201210362894A CN102878303A CN 102878303 A CN102878303 A CN 102878303A CN 201210362894X A CN201210362894X A CN 201210362894XA CN 201210362894 A CN201210362894 A CN 201210362894A CN 102878303 A CN102878303 A CN 102878303A
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- valve
- valve rod
- flap
- pipe
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Abstract
The invention relates to a sealing valve, which comprises a valve body, a valve rod and a valve clack, wherein the valve body comprises a valve rod tube, a valve seat tube and a valve body cavity which are communicated with one another; an internal thread is formed on the inner wall of the valve rod tube; an external thread is formed on the outer wall of the valve rod; the internal thread is meshed with the external thread; the valve clack is arranged on the top of one end, which extends into the valve body cavity, of the valve rod; a connection hole is formed in one surface, which is connected with the valve rod, of the valve clack; a circle of clamping slot is formed in the top of the connection hole; a pin hole is formed in the top of one end, which is connected with the valve clack, of the valve rod; a spring is arranged in the pin hole; cylindrical pins are arranged on two sides of the spring; the valve rod extends into the connection hole; the cylindrical pins on the top of the valve rod are clamped in the clamping slot in the valve clack; and the diameter of the valve rod is smaller than that of the connection hole in the valve clack. The valve clack is independently manufactured; after the spherical surface of the valve clack is in contact with the end face of a circular hole in a valve seat, the center can be automatically adjusted; and a concentricity precision requirement of relevant parts is met.
Description
Technical field
The present invention relates to a kind of valve, is that a kind of valve rod and flap are the sealed valve of split-type structural specifically.
Background technique
In the prior art, the valve rod of sealed valve and flap are integrally manufactured, the height of the quality of fit of machining accuracy and correlated parts, and directly whether decision interior leakage can occur, and machining accuracy and quality of fit will improve one-level, and manufacture cost significantly rises.
The head flap of valve rod, flap is that local slope contacts sealing with the valve seat local slope, when the concentricity grade of accuracy of correlated parts is lower than 7 grades of tolerances, the head of flap may the misalignment valve seat, cause sealing effect bad, at this time when valve rod and valve base sealing, mutually friction between the two, needing could good seal with very large strength, copper foam and chromium plating come off, cause sealing surface impaired, the final situation that leakage occurs, flap and valve seat rub mutually during because of opening/shutting valve, opened and closed often, it is also more severe to wear and tear, and leaks also seriously, and shape is played the lost of life.If valve rod is by electronic or pneumatic control, shape draws relevant Electric actuator or Pneumatic actuator is malfunctioning impaired.
Summary of the invention
The objective of the invention is in order to solve the existing defective of sealed valve in the prior art, it is that the sealed valve of split-type structural solves the problems referred to above that a kind of valve rod and flap are provided.
To achieve these goals, technological scheme of the present invention is as follows:
A kind of sealed valve, comprise valve body, valve rod and flap, described valve body comprises the valve rod pipe, valve seat pipe and valve body chamber, described valve rod pipe, valve seat pipe and valve body chamber are communicated with, the inwall of described valve rod pipe is provided with internal thread, the outer wall of valve rod is provided with outside thread, both engagements, described flap is arranged at the top that valve rod stretches into the endoceliac end of valve, it is characterized in that be provided with attachment hole on described flap and the one side that valve rod is connected, the top of attachment hole is provided with a circle draw-in groove, the end top that described valve rod is connected with flap is provided with pin-and-hole, be provided with spring in the pin-and-hole, the both sides of spring are provided with straight pin, and described valve rod stretches in the attachment hole, and the straight pin of valve stem tip is stuck in the draw-in groove of flap inside, and the diameter of described valve rod is less than the diameter of the attachment hole of flap.
Above-mentioned a kind of sealed valve is characterized in that, the diameter of the diameter of described valve rod and flap attachment hole differs and is no more than 1mm.
Above-mentioned a kind of sealed valve is characterized in that, the outward edge on described flap two sides is arc surface.
Above-mentioned a kind of sealed valve is characterized in that, described flap withstands the top diameter of arc surface of the mouth of pipe of valve seat pipe less than the diameter of the valve seat pipe mouth of pipe, and described flap withstands the rear portion diameter of arc surface of the mouth of pipe of valve seat pipe greater than the diameter of the valve seat pipe mouth of pipe.
Beneficial effect of the present invention is: flap is made separately, behind the circular hole end contact of the sphere of flap and valve seat, and self-aligning, solved the concentricity required precision of correlated parts, quality of fit also can reduce, and manufacture cost just descends, and flap is relative with valve seat static, sealing surface is relatively friction not, sealing surface just can not destroy, and greatly lengthen working life, because of the surface of contact of valve rod and flap less, frictional resistance is less, so operation is more flexible.
Description of drawings
Fig. 1 is sectional view of the present invention;
Embodiment
Further understand and understanding for making structure characteristic of the present invention and the effect reached had, cooperate detailed explanation in order to preferred embodiment and accompanying drawing, be described as follows:
Referring to Fig. 1, a kind of sealed valve, comprise valve body 100, valve rod 200 and flap 300, valve body 100 comprises valve rod pipe 110, valve seat pipe 120 and valve body chamber 130, valve rod pipe 110, valve seat pipe 120 and valve body chamber 130 are communicated with, the inwall of valve rod pipe 110 is provided with internal thread, the outer wall of valve rod 200 is provided with outside thread, both engagements, flap 300 is arranged at the top that valve rod 200 stretches into the end in the valve body chamber 130, and flap 300 can withstand the mouth of pipe of valve seat pipe 120 forward, can withstand the mouth of pipe of valve rod pipe 110 backward.By rotary valve rod 200 flap 300 on valve rod 200 tops is withstood on the nozzle position of valve seat pipe 120, reach the effect of sealing.
And in the present invention, the diameter of valve rod 200 is less than the diameter of the attachment hole 310 of flap 300, and like this so that can produce the gap between the attachment hole inwall of valve rod 200 and flap 300, and flap 300 also can be offset about carry out on the top of valve rod 200.
Because valve body 100 is in processing, its valve rod pipe 110 and valve seat pipe 120 process respectively, therefore be difficult to guarantee the concentricity of valve rod pipe 110 and valve seat pipe 120, if be that gapless is fixedly connected with between flap 300 and the valve rod 200 at this time, so probably cause the leakage between flap 300 and the valve seat pipe 120.And in the present invention, because flap 300 can be offset about carry out on the top of valve rod 200, so the skew by flap 300 can compensate the error of valve rod pipe 110 and valve seat pipe 120 concentricitys when processing valve body 100.
The diameter of the diameter of valve rod 200 and flap 300 attachment holes 310 differs and is no more than 1mm, such effect is, if the diameter of the diameter of valve rod 200 and flap 300 attachment holes 310 has big difference, that is easy to cause between valve rod 200 and the flap 300 and is connected built on the sand, with gap control within 1mm, the error of valve rod pipe 110 and valve seat pipe 120 concentricitys when processing valve body 100 can either be guaranteed to compensate, stable connection between valve rod 200 and the flap 300 can also be guaranteed simultaneously.
The outward edge on flap 300 two sides is arc surface, and the top diameter of arc surface that flap 300 withstands two mouths of pipe is less than the diameter of two mouths of pipe, and flap 300 withstands the rear portion diameter of arc surface of two mouths of pipe greater than the diameter of two mouths of pipe.The arc surface top that so just can guarantee flap 300 extend in the mouth of pipe of valve seat pipe 120 mouth of pipe of valve seat pipe 120 and tightly fit in the rear portion of arc surface, effect be for flap 300 can and the mouth of pipe of valve seat pipe 120 between sealing effect better, be not easy to leak.
Beneficial effect of the present invention is: flap is made separately, behind the circular hole end contact of the sphere of flap and valve seat, and self-aligning, solved the concentricity required precision of correlated parts, quality of fit also can reduce, and manufacture cost just descends, and flap is relative with valve seat static, sealing surface is relatively friction not, sealing surface just can not destroy, and greatly lengthen working life, because of the surface of contact of valve rod and flap less, frictional resistance is less, so operation is more flexible.
More than show and described basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and the specification is principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the present invention.The protection domain that the present invention requires is defined by appending claims and equivalent thereof.
Claims (4)
1. sealed valve, comprise valve body, valve rod and flap, described valve body comprises the valve rod pipe, valve seat pipe and valve body chamber, described valve rod pipe, valve seat pipe and valve body chamber are communicated with, the inwall of described valve rod pipe is provided with internal thread, the outer wall of valve rod is provided with outside thread, both engagements, described flap is arranged at the top that valve rod stretches into the endoceliac end of valve, it is characterized in that be provided with attachment hole on described flap and the one side that valve rod is connected, the top of attachment hole is provided with a circle draw-in groove, the end top that described valve rod is connected with flap is provided with pin-and-hole, be provided with spring in the pin-and-hole, the both sides of spring are provided with straight pin, and described valve rod stretches in the attachment hole, and the straight pin of valve stem tip is stuck in the draw-in groove of flap inside, and the diameter of described valve rod is less than the diameter of the attachment hole of flap.
2. a kind of sealed valve according to claim 1 is characterized in that, the diameter of the diameter of described valve rod and flap attachment hole differs and is no more than 1mm.
3. a kind of sealed valve according to claim 1 and 2 is characterized in that, the outward edge on described flap two sides is arc surface.
4. a kind of sealed valve according to claim 3, it is characterized in that, described flap withstands the top diameter of arc surface of the mouth of pipe of valve seat pipe less than the diameter of the valve seat pipe mouth of pipe, and described flap withstands the rear portion diameter of arc surface of the mouth of pipe of valve seat pipe greater than the diameter of the valve seat pipe mouth of pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210362894XA CN102878303A (en) | 2012-09-26 | 2012-09-26 | Sealing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210362894XA CN102878303A (en) | 2012-09-26 | 2012-09-26 | Sealing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102878303A true CN102878303A (en) | 2013-01-16 |
Family
ID=47479750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210362894XA Pending CN102878303A (en) | 2012-09-26 | 2012-09-26 | Sealing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102878303A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387684A (en) * | 2018-09-26 | 2019-02-26 | 谢蔓蓉 | A kind of high-precision clamp on amperemeter to be prolonged the service life based on nested mode |
| CN114322716A (en) * | 2020-09-29 | 2022-04-12 | 宝山钢铁股份有限公司 | Correction instrument for detecting contour error of upper sealing surface of threaded oil sleeve and correction method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3558098A (en) * | 1969-06-02 | 1971-01-26 | Robertshaw Controls Co | Valve construction menas |
| GB1256670A (en) * | 1969-04-15 | 1971-12-15 | ||
| CN2141489Y (en) * | 1992-08-25 | 1993-09-01 | 于景华 | Multi-proof tap |
| JPH09203473A (en) * | 1995-11-20 | 1997-08-05 | Inax Corp | Check valve device |
| CN2385165Y (en) * | 1999-06-04 | 2000-06-28 | 戴学祥 | Semi-globe sealing stop valve |
| CN2688997Y (en) * | 2004-03-13 | 2005-03-30 | 王明寿 | Circular two-way sealed valve heads |
| CN200986029Y (en) * | 2006-07-12 | 2007-12-05 | 涂志荣 | Simple type antifreeze running water tap |
| CN201031954Y (en) * | 2007-02-11 | 2008-03-05 | 徐从敏 | Valve for refrigeration compressor pipeline |
| CN202327147U (en) * | 2011-11-01 | 2012-07-11 | 四川耐特阀门有限公司 | Durable high pressure switch valve |
| CN202812224U (en) * | 2012-09-26 | 2013-03-20 | 宁波恒业制冷配件有限公司 | Sealing valve |
-
2012
- 2012-09-26 CN CN201210362894XA patent/CN102878303A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1256670A (en) * | 1969-04-15 | 1971-12-15 | ||
| US3558098A (en) * | 1969-06-02 | 1971-01-26 | Robertshaw Controls Co | Valve construction menas |
| CN2141489Y (en) * | 1992-08-25 | 1993-09-01 | 于景华 | Multi-proof tap |
| JPH09203473A (en) * | 1995-11-20 | 1997-08-05 | Inax Corp | Check valve device |
| CN2385165Y (en) * | 1999-06-04 | 2000-06-28 | 戴学祥 | Semi-globe sealing stop valve |
| CN2688997Y (en) * | 2004-03-13 | 2005-03-30 | 王明寿 | Circular two-way sealed valve heads |
| CN200986029Y (en) * | 2006-07-12 | 2007-12-05 | 涂志荣 | Simple type antifreeze running water tap |
| CN201031954Y (en) * | 2007-02-11 | 2008-03-05 | 徐从敏 | Valve for refrigeration compressor pipeline |
| CN202327147U (en) * | 2011-11-01 | 2012-07-11 | 四川耐特阀门有限公司 | Durable high pressure switch valve |
| CN202812224U (en) * | 2012-09-26 | 2013-03-20 | 宁波恒业制冷配件有限公司 | Sealing valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387684A (en) * | 2018-09-26 | 2019-02-26 | 谢蔓蓉 | A kind of high-precision clamp on amperemeter to be prolonged the service life based on nested mode |
| CN114322716A (en) * | 2020-09-29 | 2022-04-12 | 宝山钢铁股份有限公司 | Correction instrument for detecting contour error of upper sealing surface of threaded oil sleeve and correction method thereof |
| CN114322716B (en) * | 2020-09-29 | 2023-11-14 | 宝山钢铁股份有限公司 | Calibrating instrument for detecting contour error of upper sealing surface of threaded oil sleeve and calibrating method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20130116 |