CN102252099B - Valve rod - Google Patents
Valve rod Download PDFInfo
- Publication number
- CN102252099B CN102252099B CN 201110181282 CN201110181282A CN102252099B CN 102252099 B CN102252099 B CN 102252099B CN 201110181282 CN201110181282 CN 201110181282 CN 201110181282 A CN201110181282 A CN 201110181282A CN 102252099 B CN102252099 B CN 102252099B
- Authority
- CN
- China
- Prior art keywords
- swingle
- seal plug
- shrinkage pool
- sealing plug
- valve rod
- 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.)
- Active
Links
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 the 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 sealing throttling and the flow rate fine-tuning 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 impact of processing technique and process equipment, the circle of seal plug head is beated and coaxality is difficult to guarantee, sealing effect is not good enough, makes the after-sales service amount of product very large, 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 preferably overweight valve rod of screwing of sealing 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 height with material good, so that more difficult along with the reduction of material hardness when valve rod and these material fitted seal, 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 Split type 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 the first shrinkage pool, and described seal plug is located in this first shrinkage pool, the inside narrow contracting in the end of described the first shrinkage pool.
In the technique scheme, be provided with the second shrinkage pool on the roof of described the first shrinkage pool, be provided with the 3rd shrinkage pool on the upper-end surface of described seal plug, be provided with rotating sphere in described the 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 narrow contracting face.
In the technique scheme, the outer side wall of the lower end of described swingle also is provided with a narrow contracting section.
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 so that seal plug only moves 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 diametrically certain free gap 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 made for a long time the compression of axial direction to sealed mouth (valve opening) and is loosened, virtually played the grinding to sealed mouth (valve opening), thereby make sealed mouth (valve opening) degree of finish more and more higher, more be conducive to sealing, reduce the requirement to the valve opening material hardness, substantially stopped in use to occur the phenomenon of leakage.
Description of drawings
Fig. 1 is the structural representation that the present invention is installed on cutting torch.
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 arranges 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 cutting torch handle.
The lower end of described swingle 1 is provided with the first shrinkage pool 10, is equipped with seal plug 3 in this first shrinkage pool 10, and described seal plug 3 can be in the 10 interior upper and lower slippages of the first shrinkage pool.Be provided with the second shrinkage pool 12 on the roof of described the first shrinkage pool 10, be provided with the 3rd shrinkage pool 30 on the upper-end surface of described seal plug 3, be provided with rotating sphere 5 in described the second shrinkage pool 12 and the 3rd shrinkage pool 30.Between swingle 1 and seal plug 3, rotating sphere 5 is arranged, can greatly reduce the frictional force between swingle 1 and the seal plug 3, when swingle 1 rotated, seal plug 3 was difficult for along with swingle 1 rotates like this, can only be mobile in the vertical direction under the effect of swingle 1.
The outer side wall of the lower end of described swingle 1 also is provided with a narrow contracting section 14, is provided with narrow contracting section 14 and can makes the lower end of swingle 1 easily toward interior contraction (the specific works 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 the first shrinkage pool 10, and make the upper end of rotating sphere 5 be positioned at the second shrinkage pool 12.Then the narrow contracting section 14 of swingle 1 lower end is inserted in the sleeve, tapped swingle 1 moves down swingle 1, and narrow contracting section 14 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 so that 3 of seal plugs move up and down (also being that seal plug 3 is mobile 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 large advantage: in seal process, owing to have diametrically certain free gap between swingle 1, rotating sphere 5, the seal plug 3, thereby it is self-align that seal plug 3 can be realized, greatly eliminated the morpheme error owing to the conical surface in the course of working and main body, made sealing more reliable.
In addition, the present invention in use, because the conical surface of seal plug 3 is to sealed mouth 9(valve opening) make for a long time the compression of axial direction and loosen, virtually played the valve opening to sealed mouth 9() grinding, thereby making sealed mouth 9(valve opening) degree of finish is more and more higher, more be conducive to sealing, reduced the requirement to the valve opening material hardness, substantially stopped in use to occur the phenomenon of leakage.
Embodiment two, compare with embodiment one, difference only is that the roof of described the 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 contracting face 32, thereby so that the roof of the first shrinkage pool 10 when contacting with seal plug 3 upper-end surfaces, frictional force is less, thereby so that swingle 1 when rotating, seal plug 3 is along with rotating together.Being appreciated that also can be at the narrow contracting face 16 that is provided with of the roof of described the first shrinkage pool 10, as long as when the roof of the first shrinkage pool 10 was contacted with seal plug 3 upper-end surfaces, frictional force is less to be got final product.
Claims (1)
1. valve rod, comprise swingle (1) and seal plug (3), it is characterized in that, described swingle (1) is Split type structure with seal plug (3), this swingle (1) can relatively rotate with seal plug (3), described swingle (1) can make seal plug (3) moving axially along swingle (1) when rotating, the lower end of described swingle (1) is provided with the first shrinkage pool (10), described seal plug (3) is located in this first shrinkage pool (10), the inside narrow contracting in the end of described the first shrinkage pool (10), be provided with the second shrinkage pool (12) on the roof of described the first shrinkage pool (10), be provided with the 3rd shrinkage pool (30) on the upper-end surface of described seal plug (3), be provided with rotating sphere (5) in described the second shrinkage pool (12) and the 3rd shrinkage pool (30), the outer side wall of the lower end of described swingle (1) also is provided with a narrow contracting section (14), during installation, rotating sphere (5) is placed in the 3rd shrinkage pool (30) of seal plug (3) upper end, then seal plug (3) is penetrated in the first shrinkage pool (10), and the upper end that makes rotating sphere (5) is positioned at the second shrinkage pool (12), then the narrow contracting section (14) of swingle (1) lower end is inserted in the sleeve, tapped swingle (1), swingle (1) is moved down, narrow contracting section (14) is pushed by sleeve, the lower end of swingle (1) is inwardly shunk, prevent that seal plug (3) breaks away from swingle (1).
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 CN102252099A (en) | 2011-11-23 |
| CN102252099B true 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644760B (en) * | 2012-04-26 | 2013-08-28 | 西南石油大学 | Sealing structure of ultrahigh-pressure needle valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5924677A (en) * | 1997-12-09 | 1999-07-20 | Huang; Chao-Qun | Disk-type faucet |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6571960B2 (en) * | 2000-05-01 | 2003-06-03 | Kimberly-Clark Worldwide, Inc. | Faucet-mounted water filtration device |
-
2011
- 2011-06-30 CN CN 201110181282 patent/CN102252099B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5924677A (en) * | 1997-12-09 | 1999-07-20 | Huang; Chao-Qun | Disk-type faucet |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102252099A (en) | 2011-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105971545B (en) | Polished rod sealing device special for pumping unit | |
| CN205715698U (en) | A kind of stop valve | |
| CN102252099B (en) | Valve rod | |
| CN202188147U (en) | Valve rod | |
| CN107524420B (en) | Follow-up centering two-stage has lever system sealing device | |
| CN201818270U (en) | Wellhead rotation guider | |
| CN207701103U (en) | Multifunctional polish rod seal device | |
| CN205154090U (en) | Transfer oblique wear -resisting packing box | |
| CN205715715U (en) | A kind of core assembly | |
| CN201747286U (en) | Ball abrasion-reducing torsion-decreasing joint | |
| CN202937220U (en) | Automatic deviation regulation type wellhead packing box | |
| CN209737318U (en) | Grinding device for grinding spherical valve cores | |
| CN203757161U (en) | Packing box and valve connecting and sealing structure | |
| CN103256269A (en) | Manual pilot valve and spool thereof | |
| CN204459427U (en) | A kind of valve rod leak-proof structure | |
| CN202700557U (en) | Novel cone crusher | |
| CN203044075U (en) | Planing wheel device of coal breaking machine | |
| CN202418626U (en) | Stop valve | |
| CN202202833U (en) | Sealer of oil field well mouth | |
| CN204083318U (en) | Fire-fighting ball valve | |
| CN202302019U (en) | Double sealed sleeve type throttle valve | |
| CN202882828U (en) | Double-layer omni-directional adjustable well opening device of heavy oil well | |
| CN111021980A (en) | Double-section automatic blowout prevention well mouth sealer | |
| CN204200151U (en) | A kind of oil extraction wellhead sealing device | |
| CN204365384U (en) | The mantle rotary swing structure of gyratory crusher |
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 |