CN204042058U - A kind of light moment of torsion steel PE ball valve - Google Patents
A kind of light moment of torsion steel PE ball valve Download PDFInfo
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- CN204042058U CN204042058U CN201420505063.8U CN201420505063U CN204042058U CN 204042058 U CN204042058 U CN 204042058U CN 201420505063 U CN201420505063 U CN 201420505063U CN 204042058 U CN204042058 U CN 204042058U
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- spheroid
- pipe
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Abstract
The utility model discloses a kind of light moment of torsion steel PE ball valve, belong to valve field.This light moment of torsion steel PE ball valve comprises valve body, spheroid, PE pipe, sheath, valve stem connection and valve rod, described valve rod is extended type, be divided into upper valve rod and lower valve rod, valve body is connected respectively to by valve stem connection, upper valve rod and valve body contact part are provided with worm structure, be provided with rolling bearing between lower valve rod and valve body, between lower valve rod and spheroid, be provided with thrust bearing; Described PE pipe is connected with valve body screw thread, and PE pipe has protective metal shell with valve body joint outer installment.The utility model is intended to alleviate moment of torsion when ball valve opens and closes, and protection valve rod not easily twists off, and reduces the friction factor of steel spheroid, and protection spheroid is not easy to wear, thus increases the working life of ball valve.
Description
Technical field
The utility model belongs to valve field, is specifically related to a kind of light moment of torsion steel PE ball valve.
Technical background
Welding ball valve uses all widely in every field, its superior quality and high performance stability are that Normal Steel Casting ball valve is beyond one's reach, welding ball valve is far longer than cast steel ball valve working life, and all-welded ball valve is widely used on the various pipes equipment such as gas, city heat supply, petrochemical industry, shipbuilding, iron and steel, voltage regulating station, power station.
And modern city vehicle and pedestrian intensive, road conditions is complicated, often by buried for ball valve underground.Conveniently operate, for the valve being arranged on underground, the normal valve rod adopting lengthening, and valve rod belongs to easily damaged parts, easily twists off when hoisting capacity is larger, the moment of torsion reducing ball valve just seems particularly necessary.And steel ball valve cost is high, easy damaged under rubbing action, the friction factor rotated when how to reduce the opening and closing of steel ball valve is also particularly necessary.
Model utility content
The utility model provides a kind of light moment of torsion steel PE ball valve, and be intended to alleviate moment of torsion when ball valve opens and closes, protection valve rod not easily twists off, and reduces the friction factor of steel spheroid, and protection spheroid is not easy to wear, thus increases the working life of ball valve.
For achieving the above object, the technical solution of the utility model is as follows:
Light moment of torsion steel PE ball valve, comprise valve body, spheroid, PE pipe, sheath, valve stem connection and valve rod, it is characterized in that: described valve rod is extended type, be divided into upper valve rod and lower valve rod, valve body is connected respectively to by valve stem connection, upper valve rod and valve body contact part are provided with worm structure, be provided with rolling bearing, be provided with thrust bearing between lower valve rod and spheroid between lower valve rod and valve body; Described PE pipe is connected with valve body screw thread, and PE pipe has protective metal shell with valve body joint outer installment; Described PE pipe and valve body contact part are provided with and seal O shape and enclose or seal plain cushion.
Described spheroid is steel.
The beneficial effects of the utility model are:
One, valve rod is divided into upper valve rod and lower valve rod, is connected respectively to valve body by valve stem connection, and upper valve rod and valve body contact part are provided with worm structure, by screw thread reinforcement, reduce moment of torsion, only needs very little hoisting capacity can open or close ball valve.Facilitate manual operation, avoid the firmly excessive valve rod of lengthening that causes simultaneously and twist off, increase the working life of valve rod;
Two, be provided with rolling bearing between lower valve rod and valve body, adopt rolling bearing, effectively reduce friction factor, frictional force during keying is less, counter balance torque and frictional force, thus reaches and make to increase ball valve working life;
Three, be provided with thrust bearing between lower valve rod and spheroid, reduce the friction torque of valve rod, valve rod long-term smooth can be made flexible;
Four, PE pipe adopts with valve body and is threaded, and PE pipe outside is added with protective metal shell and is fixed, and fully ensures its intensity, makes it connect more reliable and more stable;
Five, steel plastic compount design avoids pure PE ball valve causes switch failure and damage in Long-Time Service drawback because of valve body and operative section material ageing, not easily produces the leakage because causing after PE aged deterioration, long service life, safe and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Mark in figure: 1 for valve body, 2 for thrust bearing, 3 for rolling bearing, 4 for lower valve rod, 5 for lower valve rod joint, 6 lower valve rod O shapes circle, 7 for PE pipe O shape circle, 8 for sheath, 9 for PE pipe, 10 for spheroid, 11 for upper valve rod, 12 be upper valve rod joint.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is further described.
As shown in Figure 1, light moment of torsion steel PE ball valve, comprise valve body 1, spheroid 10, PE pipe 9, sheath 8, valve stem connection and valve rod, it is characterized in that: described valve rod is extended type, be divided into upper valve rod 11 and lower valve rod 4, be connected respectively to valve body 1 by upper valve rod joint 12 and lower valve rod joint 5, upper valve rod 11 and valve body 1 contact segment are provided with worm structure, be provided with rolling bearing 3 between lower valve rod 4 and valve body 1, between lower valve rod 4 and spheroid 10, be provided with thrust bearing 2.Extended type stem design can protect filler when low temperature environment uses, and is convenient to cold insulation construction, can be convenient to open operation time buried.And upper valve rod 11 and valve body 1 contact segment are provided with worm structure, by screw thread reinforcement, reduce moment of torsion, only need very little hoisting capacity can open or close ball valve.Facilitate manual operation, avoid the firmly excessive valve rod of lengthening that causes simultaneously and twist off, increase the working life of valve rod.And be provided with rolling bearing 3 between lower valve rod 4 and valve body 1, adopt rolling bearing 3, more traditional sliding bearing more effectively reduces friction factor, frictional force during keying is less, counter balance torque and frictional force, thus reaches and make to increase ball valve working life, thrust bearing is provided with between lower valve rod 4 and spheroid 10, can axial force be born, reduce the friction torque of valve rod, valve rod long-term smooth can be made flexible.Described PE pipe 9 is threaded with valve body 1, and PE pipe 9 and valve body 1 joint outer installment have protective metal shell 8, PE pipe 9 and valve body 1 contact segment to be also provided with to seal O shape encloses or seal plain cushion to increase sealability.Steel plastic compount design avoids pure PE ball valve causes switch failure and damage in Long-Time Service drawback because of valve body and operative section material ageing, not easily produces the leakage because causing after PE aged deterioration, long service life, safe and reliable.Be fixed with protective metal shell 8, can fully ensure its intensity, make it connect more reliable and more stable, can not leakage be loosened.
Claims (2)
1. one kind light moment of torsion steel PE ball valve, comprise valve body, spheroid, PE pipe, sheath, valve stem connection and valve rod, it is characterized in that: described valve rod is extended type, be divided into upper valve rod and lower valve rod, valve body is connected respectively to by valve stem connection, upper valve rod and valve body contact part are provided with worm structure, be provided with rolling bearing, be provided with thrust bearing between lower valve rod and spheroid between lower valve rod and valve body; Described PE pipe is connected with valve body screw thread, and PE pipe has protective metal shell with valve body joint outer installment; Described PE pipe and valve body contact part are provided with and seal O shape and enclose or seal plain cushion.
2. light moment of torsion steel PE ball valve according to claim 1, is characterized in that: described spheroid is steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420505063.8U CN204042058U (en) | 2014-09-03 | 2014-09-03 | A kind of light moment of torsion steel PE ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420505063.8U CN204042058U (en) | 2014-09-03 | 2014-09-03 | A kind of light moment of torsion steel PE ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204042058U true CN204042058U (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420505063.8U Active CN204042058U (en) | 2014-09-03 | 2014-09-03 | A kind of light moment of torsion steel PE ball valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN204042058U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318036A (en) * | 2015-12-15 | 2016-02-10 | 岳阳东方自控工程设备有限公司 | Magnetic thrust bearing valve |
-
2014
- 2014-09-03 CN CN201420505063.8U patent/CN204042058U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318036A (en) * | 2015-12-15 | 2016-02-10 | 岳阳东方自控工程设备有限公司 | Magnetic thrust bearing valve |
| CN105318036B (en) * | 2015-12-15 | 2017-10-24 | 岳阳东方自控工程设备有限公司 | Magnetic force thrust bearing valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |