CN202812224U - Sealing valve - Google Patents
Sealing valve Download PDFInfo
- Publication number
- CN202812224U CN202812224U CN 201220496055 CN201220496055U CN202812224U CN 202812224 U CN202812224 U CN 202812224U CN 201220496055 CN201220496055 CN 201220496055 CN 201220496055 U CN201220496055 U CN 201220496055U CN 202812224 U CN202812224 U CN 202812224U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- pipe
- flap
- diameter
- 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
Links
Images
Abstract
The utility model relates to a sealing valve. The sealing valve comprises a valve body, a valve rod and a valve clack, wherein the valve body comprises a valve rod pipe, a valve seat pipe and a valve body cavity, the valve rod pipe, the valve seat pipe and the valve cavity are communicated, the inner wall of the valve rod pipe is provided with inner threads, the outer wall of the valve rod is provided with outer threads, the inner threads are meshed with the outer threads, the valve clack is arranged at the top of one end, extending into the valve body cavity, of the valve rod, one face, connected with the valve rod, of the valve clack is provided with a connection hole, a circle of clamping groove is arranged at the top of the connection hole, a pin hole is arranged at the top of one end, connected with the valve clack, of the valve rod, a spring is arranged in the pin hole, cylindrical pins are arranged at two sides of the spring, the valve rod extends into the connection hole, the cylindrical pins at the top end of the valve rod are clamped in the claming groove in the valve clack, and the diameter of the valve rod is smaller than that of the connection hole of the valve clack. Due to the fact that the valve clack is manufactured independently, after a spherical surface of the valve clack contacts a round hole end face of a valve seat, the center is automatically adjusted, and the requirement of concentricity accuracy of relevant parts is met.
Description
Technical field
The utility model 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.
The model utility content
The purpose of this utility model is in order to solve the existing defective of sealed valve in the prior art, and 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, the technical solution of the utility model 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.
The beneficial effects of the utility model are: 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 utility model;
Embodiment
Further understand and understanding for making structure characteristic of the present utility model 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 utility model, 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 utility model, 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.
The beneficial effects of the utility model are: 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 utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and the specification is principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in the claimed scope of the present utility model.The protection domain that the utility model 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 |
|---|---|---|---|
| CN 201220496055 CN202812224U (en) | 2012-09-26 | 2012-09-26 | Sealing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220496055 CN202812224U (en) | 2012-09-26 | 2012-09-26 | Sealing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202812224U true CN202812224U (en) | 2013-03-20 |
Family
ID=47871094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220496055 Expired - Fee Related CN202812224U (en) | 2012-09-26 | 2012-09-26 | Sealing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202812224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878303A (en) * | 2012-09-26 | 2013-01-16 | 宁波恒业制冷配件有限公司 | Sealing valve |
-
2012
- 2012-09-26 CN CN 201220496055 patent/CN202812224U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878303A (en) * | 2012-09-26 | 2013-01-16 | 宁波恒业制冷配件有限公司 | Sealing valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202812224U (en) | Sealing valve | |
| CN101205977A (en) | Double sealing high pressure needle valve | |
| CN102878303A (en) | Sealing valve | |
| CN203686178U (en) | Reversed sealing device for fixed-stroke valve stem | |
| CN202118294U (en) | High-pressure hard seal ball valve | |
| CN204729655U (en) | Soft seal stop valve | |
| CN103271639A (en) | Pressure limiting valve of pressure cooker | |
| CN105840840A (en) | Valve | |
| CN102818036A (en) | Environment-friendly ammonia valve | |
| CN203162203U (en) | Three-plate type internal thread ball valve | |
| CN202457829U (en) | Pressure cooker gravity pressure limiting valve | |
| CN201059368Y (en) | Dual-channel sealing eccentric hemisphere valve | |
| CN202867883U (en) | Center line-type butterfly valve | |
| CN210484630U (en) | Air valve device | |
| CN201145049Y (en) | Needle valve sealing structure | |
| CN204267934U (en) | A kind of movable tank connecting joint | |
| CN217713802U (en) | General connection structure of self-closing valve | |
| CN2809357Y (en) | High and middle pressure corrugated pipe stop valve | |
| CN207893217U (en) | A kind of novel soft sealing ball valve | |
| CN202056338U (en) | Abrasion-resistant ball valve | |
| CN110486480B (en) | Air valve device | |
| CN204533551U (en) | The normally open valve that a kind of valve stem seal end adopts bulb to connect | |
| CN201344265Y (en) | Normally closed solenoid valve | |
| CN210164994U (en) | Right-angle stop valve | |
| CN101178150A (en) | Double sealings high-pressure grease pouring valve |
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: 20130320 Termination date: 20130926 |