CN102252099A - Valve rod - Google Patents
Valve rod Download PDFInfo
- Publication number
- CN102252099A CN102252099A CN 201110181282 CN201110181282A CN102252099A CN 102252099 A CN102252099 A CN 102252099A CN 201110181282 CN201110181282 CN 201110181282 CN 201110181282 A CN201110181282 A CN 201110181282A CN 102252099 A CN102252099 A CN 102252099A
- Authority
- CN
- China
- Prior art keywords
- swingle
- seal plug
- shrinkage pool
- valve rod
- sealing plug
- 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.)
- Granted
Links
- 208000029154 Narrow face Diseases 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 18
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Abstract
The invention discloses a valve rod comprising a rotary rod and a sealing plug. The valve rod is characterized in that the rotary rod and the sealing plug are of a split structure, and the rotary rod and the sealing plug can relatively rotate; and an end face pressing down the sealing plug is at least arranged on the rotary rod. In the valve rod disclosed by the invention, the rotary rod rotates and does not drive the sealing plug to rotate, and the sealing plug is pressed down when the rotary rod is screwed down so that the sealing plug only moves up and down, but not moves circularly, thus the abrasion of a conical surface or a sealing opening (a valve hole) of the sealing plug is reduced and the service life of the sealing plug is largely prolonged.
Description
Technical field
The present invention relates to a kind of valve rod, this valve rod can be applicable on the products such as cutting tool, flowmeter.
Background technique
In cutting products such as tool, flowmeter, be provided with a valve rod, described valve rod be mainly used in by with the cooperating of valve opening, thereby realize the sealing throttling and the flow fine setting of product.
Current valve rod as shown in Figure 4, this valve rod comprises swingle and seal plug, described swingle and seal plug are structure as a whole, mainly there is following deficiency in this valve rod: 1) because the influence of processing technique and process equipment, the circle of seal plug portion is beated and coaxality is difficult to guarantee, sealing effect is not good enough, makes the after-sales service amount of product very big, causes great manpower, financial resources waste; 2) in use, seal plug and sealed mouth (valve opening) are done the circumference friction, because the user is for reaching the overweight valve rod of screwing of better seal effect, very easily cause the heavy wear of seal plug or sealed mouth (valve opening), cause the sealing difficulty and make product rejection; 3) the valve opening material hardness has just with the good of material, and difficult more along with the reduction of material hardness when making the sealing of valve rod and these material fit, valve rod has limited the application development of low-durometer material.
Summary of the invention
The present invention is directed to deficiency of the prior art, a kind of valve rod of not easy to wear, long service life is provided.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals: a kind of valve rod, comprise swingle and seal plug, it is characterized in that, described swingle and seal plug are for dividing body structure, this swingle can relatively rotate with seal plug, and described swingle can make seal plug moving axially along swingle when rotating.
In the technique scheme, the lower end of described swingle is provided with first shrinkage pool, and described seal plug is located in this first shrinkage pool, and the end of described first shrinkage pool is narrow contracting inwardly.
In the technique scheme, the roof of described first shrinkage pool is provided with second shrinkage pool, and the upper-end surface of described seal plug is provided with the 3rd shrinkage pool, is provided with rotating sphere in described second shrinkage pool and the 3rd shrinkage pool.
In the technique scheme, described swingle is that face contacts with seal plug, and described swingle is or/and the end face of seal plug contact is the narrow face that contracts.
In the technique scheme, the outer side wall of the lower end of described swingle also is provided with a narrow portion of contracting.
Beneficial effect: the present invention compared with prior art, have following beneficial effect: 1) swingle of the present invention rotates, not driving seal plug rotates, seal plug is pressed down in the process that swingle is down twisted, thereby make seal plug only move up and down, and do not make circular movement, and reduced the wearing and tearing of the seal plug conical surface or sealed mouth (valve opening), greatly improved the working life of seal plug.
2) the present invention: in seal process, owing to have certain free gap diametrically between swingle, rotating sphere, the seal plug, thereby it is self-align that seal plug can be realized, greatly eliminated the morpheme error owing to the conical surface in the course of working and main body, makes sealing more reliable.
3) the present invention in use, because the conical surface of seal plug is done compressing of axial direction for a long time to sealed mouth (valve opening) and is loosened, played grinding virtually to sealed mouth (valve opening), thereby make sealed mouth (valve opening) degree of finish more and more higher, help sealing more, reduced requirement, stopped in use to take place the phenomenon of leakage substantially the valve opening material hardness.
Description of drawings
Fig. 1 is installed on the structural representation of cutting torch for the present invention.
Fig. 2 is the structural representation of the embodiment of the invention one.
Fig. 3 is the structural representation of the embodiment of the invention two.
Fig. 4 is the structural representation of valve rod in the prior art.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail: embodiment one, see Fig. 1～Fig. 2, a kind of valve rod, comprise swingle 1, the upper end of described swingle 1 is provided with knob 7, this swingle 1 is twisted by the outside thread that is provided with on its sidewall and is located on the handle of cutting torch, during turning knob 7, can make swingle 1 rise or descend with respect to the cutting torch handle.
The lower end of described swingle 1 is provided with first shrinkage pool 10, is equipped with seal plug 3 in this first shrinkage pool 10, and described seal plug 3 can upper and lower slippage in first shrinkage pool 10.The roof of described first shrinkage pool 10 is provided with second shrinkage pool 12, and the upper-end surface of described seal plug 3 is provided with the 3rd shrinkage pool 30, is provided with rotating sphere 5 in described second shrinkage pool 12 and the 3rd shrinkage pool 30.Between swingle 1 and seal plug 3, rotating sphere 5 is arranged, can reduce the frictional force between swingle 1 and the seal plug 3 greatly, when swingle 1 rotated, seal plug 3 was difficult for can only moving in Vertical direction under the effect of swingle 1 along with swingle 1 rotates like this.
The outer side wall of the lower end of described swingle 1 also is provided with a narrow portion 14 of contracting, and is provided with the narrow portion 14 of contracting and can makes the lower end of swingle 1 easily toward interior contraction (concrete working principle describes in detail below).
During installation, rotating sphere 5 is placed in the 3rd shrinkage pool 30 of seal plug 3 upper ends, then seal plug 3 is penetrated in first shrinkage pool 10, and make the upper end of rotating sphere 5 be positioned at second shrinkage pool 12.Then the narrow portion 14 of contracting of swingle 1 lower end is inserted in the sleeve, beat swingle 1 gently, swingle 1 is moved down, the narrow portion 14 of contracting is pushed by sleeve, and the lower end of swingle 1 is inwardly shunk, and prevents that seal plug 3 breaks away from swingles 1.
During use, turning knob 7, make down slippage of swingle 1, owing to be provided with rotating sphere 5 between swingle 1 and the seal plug 3, frictional force between swingle 1 and the seal plug 3 is less, swingle 1 rotates like this, not driving seal plug 3 rotates, seal plug 3 is pressed down in the process that swingle 1 is down twisted, thereby make 3 of seal plugs move up and down (also being seal plug 3 moves along the axial O-O ' of swingle 1), and do not make circular movement, and reduced the wearing and tearing of seal plug 3 conical surfaces or sealed mouth (valve opening), greatly improved the working life of seal plug 3.
In addition, the present invention also has other one big advantage: in seal process, owing to have certain free gap diametrically between swingle 1, rotating sphere 5, the seal plug 3, thereby it is self-align that seal plug 3 can be realized, greatly eliminated morpheme error, made sealing more reliable owing to the conical surface in the course of working and main body.
In addition, the present invention in use, because the conical surface of seal plug 3 is to sealed mouth 9(valve opening) do compressing and loosening of axial direction for a long time, played valve opening virtually to sealed mouth 9() grinding, thereby making sealed mouth 9(valve opening) degree of finish is more and more higher, help sealing more, reduced requirement, stopped in use to take place the phenomenon of leakage substantially the valve opening material hardness.
Embodiment two, compare with embodiment one, difference only is that the roof of described first shrinkage pool 10 directly contacts with seal plug 3 upper-end surfaces.The upper-end surface of described seal plug 3 is a narrow face 32 that contracts, thereby when the roof of the shrinkage pool 10 of winning was contacted with seal plug 3 upper-end surfaces, frictional force was less, thereby makes when swingle 1 rotates, and seal plug 3 is along with rotating together.Being appreciated that also can be at the narrow face 16 that contracts that is provided with of the roof of described first shrinkage pool 10, as long as when the roof of first shrinkage pool 10 is contacted with seal plug 3 upper-end surfaces, frictional force is less to get final product.
Claims (5)
1. valve rod, comprise swingle (1) and seal plug (3), it is characterized in that, described swingle (1) is the branch body structure with seal plug (3), this swingle (1) can relatively rotate with seal plug (3), and described swingle (1) can make seal plug (3) moving axially along swingle (1) when rotating.
2. valve rod as claimed in claim 1 is characterized in that, the lower end of described swingle (1) is provided with first shrinkage pool (10), and described seal plug (3) is located in this first shrinkage pool (10), and the end of described first shrinkage pool (10) is narrow contracting inwardly.
3. valve rod as claimed in claim 2, it is characterized in that, the roof of described first shrinkage pool (10) is provided with second shrinkage pool (12), the upper-end surface of described seal plug (3) is provided with the 3rd shrinkage pool (30), is provided with rotating sphere (5) in described second shrinkage pool (12) and the 3rd shrinkage pool (30).
4. valve rod as claimed in claim 2 is characterized in that, described swingle (1) and seal plug (3) are for face contacts, and described swingle (1) is or/and the end face of seal plug (3) contact is the narrow face that contracts.
5. valve rod as claimed in claim 2 is characterized in that, the outer side wall of the lower end of described swingle (1) also is provided with a narrow portion of contracting (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110181282 CN102252099B (en) | 2011-06-30 | 2011-06-30 | Valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110181282 CN102252099B (en) | 2011-06-30 | 2011-06-30 | Valve rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102252099A true CN102252099A (en) | 2011-11-23 |
| CN102252099B CN102252099B (en) | 2013-05-29 |
Family
ID=44979573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110181282 Active CN102252099B (en) | 2011-06-30 | 2011-06-30 | Valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102252099B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644760A (en) * | 2012-04-26 | 2012-08-22 | 西南石油大学 | Sealing structure of ultrahigh-pressure needle valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5924677A (en) * | 1997-12-09 | 1999-07-20 | Huang; Chao-Qun | Disk-type faucet |
| US20020005379A1 (en) * | 2000-05-01 | 2002-01-17 | Kimberly-Clark Worldwide, Inc. | Faucet-mounted water filtration device |
| CN201277334Y (en) * | 2008-10-21 | 2009-07-22 | 大连八方经济技术有限公司 | Diaphragm type voltage-regulation fine-adjustment valve |
| CN201322106Y (en) * | 2008-12-12 | 2009-10-07 | 彭国军 | Labor-saving high-sealing plug valve |
| CN201588952U (en) * | 2009-12-24 | 2010-09-22 | 川北真空科技(北京)有限公司 | Spool component for micro-metering valve |
-
2011
- 2011-06-30 CN CN 201110181282 patent/CN102252099B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5924677A (en) * | 1997-12-09 | 1999-07-20 | Huang; Chao-Qun | Disk-type faucet |
| US20020005379A1 (en) * | 2000-05-01 | 2002-01-17 | Kimberly-Clark Worldwide, Inc. | Faucet-mounted water filtration device |
| CN201277334Y (en) * | 2008-10-21 | 2009-07-22 | 大连八方经济技术有限公司 | Diaphragm type voltage-regulation fine-adjustment valve |
| CN201322106Y (en) * | 2008-12-12 | 2009-10-07 | 彭国军 | Labor-saving high-sealing plug valve |
| CN201588952U (en) * | 2009-12-24 | 2010-09-22 | 川北真空科技(北京)有限公司 | Spool component for micro-metering valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644760A (en) * | 2012-04-26 | 2012-08-22 | 西南石油大学 | Sealing structure of ultrahigh-pressure needle valve |
| CN102644760B (en) * | 2012-04-26 | 2013-08-28 | 西南石油大学 | Sealing structure of ultrahigh-pressure needle valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102252099B (en) | 2013-05-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240425 Address after: 315000 Private Industrial City, Jiangbei District, Ningbo City, Zhejiang Province Patentee after: NINGBO JIANGBEI XINGDA WELDING CUTTING REGULATING METER FACTORY Country or region after: China Address before: 315036 No. 7 Xincheng Road, Xincheng Town, Jiangbei District, Zhejiang, Ningbo Patentee before: Zhu Chengwei Country or region before: China |