CN103511640A - Right-angle throttle valve - Google Patents
Right-angle throttle valve Download PDFInfo
- Publication number
- CN103511640A CN103511640A CN201210213379.5A CN201210213379A CN103511640A CN 103511640 A CN103511640 A CN 103511640A CN 201210213379 A CN201210213379 A CN 201210213379A CN 103511640 A CN103511640 A CN 103511640A
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- rod
- valve rod
- gap
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0272—Construction of housing; Use of materials therefor of lift valves valves provided with a lining
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
- F16K41/106—Spindle sealings with diaphragm, e.g. shaped as bellows or tube for use with rotating spindles or valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention relates to a right-angle throttle valve which comprises a valve body, a valve deck, a valve rod and a valve element. The valve deck is fixedly connected with the valve body, the valve rod is arranged in the center of the valve deck, and the valve element is arranged at the lower end of the valve rod. The valve element rotates along with the valve rod to move up and down and is in sealed connection with an inner cavity of the valve body. The upper end of the valve rod is provided with a valve bonnet which sleeves the valve rod and can drive the valve rod to rotate. The valve element is in a cone shape, and the surface of the valve element is provided with a wear-resisting carburized layer. The lower end of the valve bonnet is close to the upper surface of the valve deck. Compared with the prior art, the right-angle throttle valve has the advantages that due to the fact that the valve bonnet is arranged at the upper end of the valve rod, impurities and the like cannot enter threads of the valve rod easily; due to the fact that the wear-resisting carburized layer is arranged on a contact surface of the valve element and the inner cavity of the valve body, the right-angle throttle valve is not prone to being abraded even if after being used for a long time, and the service life of the right-angle throttle valve is prolonged. The right-angle throttle valve is compact in structure, long in service life and good in sealing effect.
Description
Technical field
The present invention relates to right angle throttle valve, the right angle throttle valve of especially a kind of good sealing effect, long service life.
Background technique
Existing right angle throttle valve is generally comprised of valve body, valve gap, valve rod, handwheel and spool, described valve gap is connected with valve seal and fixes, valve gap center is provided with valve rod, the lower end of valve rod is provided with spool, spool is located between the import and outlet of valve body, spool can rotate and move up and down with valve rod, and forms and be tightly connected with body cavity.At present, outside the valve rod of existing right angle throttle valve and the surface of contact of valve gap are often exposed to, easily there is impurity to enter in the screw thread of valve rod, affect the sealing of valve rod; On the other hand, the surface of contact of spool and body cavity is also easy of using and wear and tear for a long time, thereby affects the working life of right angle throttle valve.
Summary of the invention
For the deficiency of above existing right angle throttle valve, the object of this invention is to provide a kind of valve rod upper end with valve bonnet, the right angle throttle valve of long service life, good sealing effect.
The object of the invention is by realizing by the following technical solutions:
Right angle throttle valve, comprise valve body, valve gap, valve rod and spool, described valve gap is connected with valve body and fixes, valve gap center is provided with valve rod, the lower end of valve rod is provided with spool, and spool is located between the import and outlet of valve body, and described valve rod is flexibly connected by screw thread with valve gap, valve rod upper end is provided with valve bonnet, and valve bonnet is set on valve rod and can be with ovable valve stem to rotate; Described spool is made as conical structure, and spool can move up and down with the rotation of valve rod, and the sealing surface of spool and valve body can form the gap reducing gradually, until final, form and is tightly connected.
As the preferred technical solution of the present invention, the axis of described valve body import is perpendicular to the axis of valve outlet.
As the preferred technical solution of the present invention, the surface of described spool is provided with wear-resisting carburized case.
As the preferred technical solution of the present invention, the lower end of described valve bonnet is near the upper surface of valve gap.
As the preferred technical solution of the present invention, the import of described valve body and outlet are respectively equipped with flange fillet.
The invention has the beneficial effects as follows: with respect to prior art, the upper end of valve rod of the present invention is with valve bonnet, impurity etc. are difficult for entering in the screw thread of valve rod, spool is made as taper shape, the surface of contact of spool and body cavity is provided with wear-resisting carburized case, long-term use is not easy to wear yet, thus the working life of having improved right angle throttle valve.Compact structure of the present invention, long service life, good sealing effect.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and specific embodiment, the invention will be further described:
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, right angle throttle valve, comprise valve body 1, valve gap 2, valve rod 3 and spool 5, described valve gap 2 is tightly connected and fixes with valve body 1, and valve gap 2 centers are provided with valve rod 3, and the lower end of valve rod 3 is provided with spool 5, spool 5 is located at the import 11 of valve body and exports between 12, described valve rod 3 is flexibly connected by screw thread with valve gap 2, and valve rod 3 upper ends are provided with valve bonnet 4, and valve bonnet 4 is set on valve rod 3 and can be with ovable valve stem 3 to rotate; Described spool 5 is made as conical structure, and spool 5 can move up and down with the rotation of valve rod 3, and spool 5 can form with the sealing surface 6 of valve body 1 gap reducing gradually, until final, form and is tightly connected.
In the present embodiment, the axis of described valve body import 11 is perpendicular to the axis of valve outlet 12, and the surface of spool 5 is provided with wear-resisting carburized case.Described in the present embodiment, the lower end of valve bonnet 4 is near the upper surface of valve gap 2, and import 11 and the outlet 12 of described valve body are respectively equipped with flange fillet 13.
Claims (5)
1.Yi Zhong right angle throttle valve, comprise valve body, valve gap, valve rod and spool, described valve gap is connected with valve body and fixes, valve gap center is provided with valve rod, the lower end of valve rod is provided with spool, and spool is located between the import and outlet of valve body, it is characterized in that: described valve rod is flexibly connected by screw thread with valve gap, valve rod upper end is provided with valve bonnet, and valve bonnet is set on valve rod and can be with ovable valve stem to rotate; Described spool is made as conical structure, and spool can move up and down with the rotation of valve rod, and the sealing surface of spool and valve body can form the gap reducing gradually, until final, form and is tightly connected.
2. right angle according to claim 1 throttle valve, is characterized in that: the axis of described valve body import is perpendicular to the axis of valve outlet.
3. right angle according to claim 1 and 2 throttle valve, is characterized in that: the surface of described spool is provided with wear-resisting carburized case.
4. right angle according to claim 1 throttle valve, is characterized in that: the lower end of described valve bonnet is near the upper surface of valve gap.
5. right angle according to claim 1 throttle valve, is characterized in that: the import of described valve body and outlet are respectively equipped with flange fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210213379.5A CN103511640A (en) | 2012-06-26 | 2012-06-26 | Right-angle throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210213379.5A CN103511640A (en) | 2012-06-26 | 2012-06-26 | Right-angle throttle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103511640A true CN103511640A (en) | 2014-01-15 |
Family
ID=49894849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210213379.5A Pending CN103511640A (en) | 2012-06-26 | 2012-06-26 | Right-angle throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103511640A (en) |
-
2012
- 2012-06-26 CN CN201210213379.5A patent/CN103511640A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140115 |