CN2289927Y - Cam valve - Google Patents
Cam valve Download PDFInfo
- Publication number
- CN2289927Y CN2289927Y CN 97205022 CN97205022U CN2289927Y CN 2289927 Y CN2289927 Y CN 2289927Y CN 97205022 CN97205022 CN 97205022 CN 97205022 U CN97205022 U CN 97205022U CN 2289927 Y CN2289927 Y CN 2289927Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- spool
- camshaft
- cam
- 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
- 230000000694 effects Effects 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 2
- 230000008929 regeneration Effects 0.000 abstract description 2
- 238000011069 regeneration method Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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- Taps Or Cocks (AREA)
Abstract
A cam valve is composed of valve body, valve seat, valve core, cam axle, sealing cap and handwheel, and features that said valve core is a hollow cylinder and is arranged in valve seat, a boss is arranged at one end of valve core for stopping flow when it is close to valve seat, and a cam axle is inserted in the cavity at another end of valve core for driving the valve core to move axially back and forth along valve seat. An elastic gasket is arranged on the inner side of the rectangular cavity of the valve core, and a sealing ring is arranged on the surface of the contact part of the valve seat and the boss of the valve core. The valve has simple structure, low manufacturing cost and good valve tightness, is not easy to generate road leakage phenomenon after long-term use (operation), and can be used as a regeneration product of the traditional mechanical valve.
Description
The utility model relates to a kind of valve, specifically adopts camshaft or eccentric shaft to drive a kind of mechanical type valve that spool is realized control.
Mechanical type valves such as common valve such as ball valve, gate valve or stop valve, in operating process since the sphere in the valve body or flashboard plane and valve seat seal between often friction easily control hinder its surface, thereby cause the confining pressure minimizing, water clock appears.For this common mechanical type valve, the common existence of weeping, and be difficult to thoroughly solve.In addition, some valve also is equipped with for the valve rod of a chain for binding criminals line (or leading screw), and the valve rod axial stroke is bigger in the operating process, thereby sealing brings difficulty to bonnet, also easily causes bonnet easily to run leakage phenomenon.Though there is above-mentioned various shortcoming in this common valve, because it is simple in structure, cost is low, also is widely used in water at present, and oil is made control valve in the various pipelines such as vapour, does not still have suitable substitute products.
The purpose of this utility model is a kind of new-type cammingly machinery valve of design, and this valve had both had characteristic of simple structure, can overcome the shortcoming of the easy water clock of traditional product again, can extensively go up at various pipelines (water, oil, vapour) and use.
Cam valve of the present utility model is by valve body, valve seat, spool, camshaft, sealed cap and handwheel constitute, it is characterized in that spool is that a hollow cylinder is located in the valve seat, and can do axial motion along valve seat, spool one end has boss, plays (valve closed state) effect of damming when boss and valve seat driving fit, insert camshaft in the spool the other end cavity, cavity is a rectangle, and when camshaft rotated, its cam portion drove rectangle and axially seesaws along valve seat, the maximum position that it moves forward and backward is respectively damming and maximum opening state of spool.The other parts structure of the utility model valve can design and assemble by known technology.
In the above-mentioned cam valve,, be added with elastic washer or spring,, improve its seal with its elastic force levelling spool and valve base chamber confining pressure in spool rectangular enclosure inboard for increasing the reliability that valve dams.Simultaneously add seal ring at valve seat and surface, spool boss contact position, seal is better when making spool and valve base chamber closed, can avoid the valve water clock effectively, above-mentioned elastic washer, and spring, seal ring can be used rubber, and leaf spring or stage clip are made.
Cam valve of the present utility model, principle is that spool moves axially in valve seat owing to dam, and spool front end boss is opened and closed valve seat, does not have friction owing to connect airtight the surface in its operating process, therefore can not destroy sealing surfaces, the long-term use weeping can not occur yet.Simultaneously, camshaft only rotates under handwheel drives, and therefore, sealed cap can keep the sealability between camshaft and valve body.
Its camshaft also can adopt eccentric shaft to replace in the above-mentioned cam valve, and spool drives by eccentric shaft and moves axially.
Cam valve of the present utility model, its each parts of forming valve can adopt metal material or non-metallic material (plastics, organic resin etc.) to make according to the requirement that reality is used.Its machining manufacture all can be by knowing that the habit technology carries out.
Below by accompanying drawing and example technology of the present utility model is given to illustrate further.
Accompanying drawing 1 cuts open front view for the office of the utility model cam valve;
Accompanying drawing 2 cuts open plan view for Fig. 1 along the office in N-N cross section;
Accompanying drawing 3 cuts open front view for the office of another structure of the utility model;
Accompanying drawing 4 cuts open plan view for Fig. 2 along the office in N-N cross section.
1. valve bodies among the figure; 2. valve seat; 3. spool; 4. camshaft; 5. handwheel; 51. remove handle; 6. sealed cap; 61. sealing flange; 7. elastic washer; 8. seal ring.
The cam valve of structure shown in the accompanying drawing 1,2 can be used as an embodiment of the present utility model.This cam valve is mainly by valve body 1, valve seat 2, spool 3, camshaft 4, handwheel 5 and sealed cap 6 are formed, and valve seat 2 is the one foundry goods with valve body 1, spool 3 is arranged in the valve seat 1, inserts camshaft 4 in spool 3 rectangular enclosures, and camshaft 4 drives spool 3 and moves forward and backward vertically.Be to improve the usability of valve, with 4 of camshafts elastic washer 7 is set at spool 3 brachmorphy cavity rear portions and the protruding and contact surface of valve seat adds seal ring 8 at spool.Fig. 1, structure shown in 2 is the valve maximum open position.When the eccentric end of camshaft 4 forwarded left end to, spool 3 moved high order end, and the spool boss face is the sealing of valve seat 2 inlet, and position shown in the accompanying drawing 3,4 is the state of spool 3 when closing valve seat.Structure valve shown in the accompanying drawing 3,4 can be another embodiment of the present utility model.For being suitable for making the bigger valve of the amount of damming, the boss of spool 3 is made the conical surface in this valve, with removing 51 turn camshafts 4, with valve top on the sealing flange 61 sealing camshafts 3.The elastic washer 7 usefulness elasticity of example 1 rubber are preferably made packing ring, and the elastic washer 7 of example 2 is a leaf spring, other parts in the utility model and all fabrication techniques and assemblings routinely of assembling.It is installed in the pipeline and uses and also can be undertaken by ordinary skill.
Cam valve of the present utility model is compared with common mechanical valve has following remarkable advantage:
1. simple in structure, processing and manufacturing is easy, and cost is low;
2. the valve good leak tightness is used for a long time (operation) not to be prone to the road and is leaked phenomenon;
3. valve is suitable for general enclosing extensively, can be used to do the regeneration product of traditional machinery valve.
Claims (5)
1. a cam valve is by valve body, valve seat, spool, camshaft, sealed cap, compositions such as handwheel, it is characterized in that spool is that a hollow cylinder is located in the valve seat, and can do axial motion along valve seat, spool one end has boss, plays the effect of damming when boss and valve seat driving fit, insert camshaft in the spool the other end cavity, cavity is a rectangle, and when camshaft rotated, its cam portion drove rectangle and axially seesaws along valve seat.
2. according to the described cam valve of claim 1, it is characterized in that being added with elastic washer or spring, add seal ring at valve seat and surface, spool boss contact position in spool rectangular enclosure inboard.
3. according to claim 1,2 described cam valves is characterized in that elastic washer (7) and seal ring (8) packing ring and the seal ring for making with rubber.
4. according to the described cam valve of claim 1, it is characterized in that elastic washer (7) is a leaf spring.
5. according to the described cam valve of claim 1, it is characterized in that camshaft (4) is an eccentric shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205022 CN2289927Y (en) | 1997-01-09 | 1997-01-09 | Cam valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205022 CN2289927Y (en) | 1997-01-09 | 1997-01-09 | Cam valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2289927Y true CN2289927Y (en) | 1998-09-02 |
Family
ID=33925346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97205022 Expired - Fee Related CN2289927Y (en) | 1997-01-09 | 1997-01-09 | Cam valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2289927Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954068A (en) * | 2016-05-03 | 2016-09-21 | 国网山东省电力公司青州市供电公司 | Nitrogen bottle sampling device |
-
1997
- 1997-01-09 CN CN 97205022 patent/CN2289927Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954068A (en) * | 2016-05-03 | 2016-09-21 | 国网山东省电力公司青州市供电公司 | Nitrogen bottle sampling device |
| CN105954068B (en) * | 2016-05-03 | 2018-11-16 | 国网山东省电力公司青州市供电公司 | Nitrogen cylinder sampler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |