CN102878314A - Plug valve - Google Patents
Plug valve Download PDFInfo
- Publication number
- CN102878314A CN102878314A CN 201110198178 CN201110198178A CN102878314A CN 102878314 A CN102878314 A CN 102878314A CN 201110198178 CN201110198178 CN 201110198178 CN 201110198178 A CN201110198178 A CN 201110198178A CN 102878314 A CN102878314 A CN 102878314A
- Authority
- CN
- China
- Prior art keywords
- valve
- pin
- stopcock
- valve rod
- hole
- 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
Links
Images
Landscapes
- Taps Or Cocks (AREA)
Abstract
The invention discloses a plug valve. A pin of the plug valve is positioned on the lower side of a valve rod and tightly matched with the valve rod; the pin consists of a pin body and a boss, and the pin body is provided with a reserved hole penetrating through the pin body; a hole site matched with the shape of the pin body and a passage for transmitting a medium are formed in a valve seat box body; the pin body is butted with the hole site seamlessly in an airtight way; and the valve rod and the pin are driven to rotate coaxially by rotating a handle so as to connect or disconnect the passage and the reserved hole. Compared with the prior art, the plug valve has the advantages that only the passage formed by the reserved hole is formed in the plug valve, and the plug valve does not have other vacant cavity and reserved space, so that the medium is not detained in pipelines when the medium is transmitted. The plug valve is also provided with a disc spring which is made of ceramic, so that the airtight reliability of the whole valve can be enhanced, the high-temperature resistance, the high-pressure resistance and the like of the whole valve can be improved, and the plug valve does not rust and cannot be in chemical reaction with high corrosive and high salt and basic fluid.
Description
Technical field
The present invention relates to a kind of stopcock, belong to the technical field of valve series products.
Background technique
Stopcock is a kind of by the valve of rotary valve rod realization with link to each other pipeline UNICOM or closing function, for spool can be worked, need to there be enough large cavity space stopcock inside, otherwise spool is difficult to work, yet it is found that in actual production and have following problem:
One, when using the stopcock transport gas particularly liquid flow through valve, in the ball valve cavity, can hold back a part of fluid during throttle down, time one length will cause that cavity inner fluid (particularly oil-based liquid etc.) is rotten to be sent out thick, so that spool sticks together with cavity, if solid or slurries, time length can be solidified so that spool sticks together with cavity, cause valve stuck and damage valve, easily cause simultaneously gas (or liquid, solid etc.) generation is rotten, such as in the process of producing milk, if held back a part of milk in the valve body, this part milk will go bad, and fresh milk will be contaminated when carrying fresh milk again; Do not turn on the tap for a long time for another example, the water of the inside just turns yellow so; The process chemical substance is in conjunction with reacting with another kind of chemical substance in the valve body for another example, if held back, will cause so calculating inaccurate, the actual effect of chemical reaction is inconsistent with Expected Results, so easily blasts or other security incidents; Two, the spool of common stopcock and valve rod joint need to have filler to replenish, and cause sealing property of ball valves relatively poor, easily cause leakage; Three, also there is place not fully up to expectations in the stopcock of metal material at resistance to chemical attack, the aspect of performance such as wear-resistant, high temperature resistant.
To sum up 3 described, the stopcock of prior art can not satisfy people's demand.
Summary of the invention
The object of the present invention is to provide a kind of can be at the stopcock of self inside cavity trap fluid, and this stopcock good airproof performance is difficult for causing leakage, resistance to chemical attack, wearing and tearing and high temperature.
The present invention adopts following technological scheme to realize:
A kind of stopcock, on this stopcock one handle is installed, it is characterized in that, described stopcock also comprises a valve rod that is connected with handle, one pin, one valve seat casing, described pin is made of a columniform pin body and the boss that is positioned on the cylindrical body end face, have the preformed hole of a perforation pin body on the described pin body, described valve rod consists of by a cylindrical body base with the integrally formed attachment post of this base, pin is positioned at valve rod bottom, one groove that is complementary with described boss shape is arranged on the described valve rod base, described boss is entrenched in and makes pin and valve rod drive fit in the groove, described valve seat box house has the position, hole that is complementary with the pin body shape, the valve seat box house also has the passage that is used for transmission medium that connects the valve seat casing, the pin body stretches into and makes preformed hole place it inner and form seamless sealing with the position, hole and dock in the position, hole, by handle with sleeve band ovable valve stem, the pin coaxial rotation makes passage and preformed hole be in UNICOM, the two states that disconnects.
Further, also comprising a positioning plate, a pressing plate, a ball bearing and a dishful of spring that is socketed in successively on the described valve rod attachment post between handle and the valve body, described positioning plate is one to have the dovetails of rectangle positioning hole, the upper end shape of described positioning hole and valve rod attachment post is complementary and is socketed on the valve rod attachment post, described pressing plate is fixedly connected on the valve body top and compresses described ball bearing and described dish spring by screw, one valve body is socketed in the outer circumferential of valve seat casing, and two valve gaps are installed in respectively the two ends of described valve body.
Further, the cross section of described preformed hole is circle, fillet trapezoid or round rectangle.
Further, the material of described stopcock is pottery.
The useful technique effect that the present invention possesses is:
Only have the formed passage of preformed hole in the stopcock of the present invention, in addition do not have other sky to stay cavity and headspace, can not cause during transmission medium in the pipeline and be detained.The dish spring can be protected the buffering of valve rod and pin, can strengthen the sealing reliability of whole valve, so that the performance such as that whole valve can improve is high temperature resistant, high pressure.The material of whole stopcock is pottery, namely can not get rusty, and also can not follow highly corrosive, and the fluid of high salinity produces chemical reaction.
Description of drawings
Fig. 1 is the decomposition texture schematic diagram of stopcock of the present invention.
Embodiment
By following description to embodiment; to more help public understanding the present invention; but can't the specific embodiment that the claimant is given be considered as the restriction to technical solution of the present invention, any definition to parts or technical characteristics change and/or to overall structure do form and immaterial conversion all should be considered as the protection domain that technological scheme of the present invention limits.
First embodiment of the invention as shown in Figure 1, stopcock comprises handle 1, pin 7, valve seat casing 8, valve gap 9, valve body 10, valve rod 6 consists of by a cylindrical body base with the integrally formed attachment post 61 of this base, and dish spring 5, ball bearing 4, pressing plate 3, positioning plate 2 are socketed in successively on the attachment post 61 of valve rod 6 and pass through screw fastening.Positioning plate 2 is one to have the dovetails of rectangle positioning hole, the upper end that positioning plate 2 is socketed in valve body attachment post 61 is used for the location, ball bearing 4 is comprised of interior steel ring and outer rim and the ball between inside and outside steel ring, can bear larger load, can be so that whole operation be more easy to be smooth and easy, dish spring 5 can produce pretightening force, make pin 7 and the joint of valve rod 6 need not filler (such as rubber ring, pad circle etc.) can keep closely cooperating, so valve rod place, pin upper end is without leakage, the valve rod place does not need filler.Dish spring 5 can be protected the buffering of valve rod 6 and pin 7 simultaneously, strengthens the sealing reliability of whole valve, makes the performances such as whole valve raising is high temperature resistant, high pressure.Pin 7 be positioned at valve rod 6 belows and with valve rod 6 drive fits, pin 7 is made of with the boss 72 that is positioned on the cylindrical body end face a columniform pin body 71, one groove that is complementary with boss 72 shapes is arranged on the valve rod 6, boss 72 is entrenched in the groove, have the preformed hole 711 of a perforation pin body on the pin body 71, pin body 71 stretches into valve seat casing 8 makes preformed hole 711 place its inside, valve seat casing 8 inside have the position, hole that connects valve seat casing 8, the shape of the shape of this position, hole 81 and pin body 71 is complementary, the valve seat box house also has the passage that is used for transmission medium that connects the valve seat casing, and the cross section of the medial axis of this passage and pin body preformed hole 711 is perpendicular.The existence of preformed hole 711 can be opened and close by what the whole cock of rotatable handle 1 realization was closed stopcock, and the sectional shape of preformed hole 711 is fillet trapezoid wide at the top and narrow at the bottom, and the benefit of design is to control the uninterrupted of transmitting fluid process like this.Valve seat casing 8 is assemblied in the valve body 10, have the position, hole 81 that is complementary with pin body 71 and the medial axis of valve hole 101 and position, hole 81 and valve hole 101 coincides at valve seat casing 8 and valve body 10, the two ends that valve gap 9 is installed in valve body are used for connecting with pipeline.When the needs fluid passes through stopcock, only need rotatable handle 1 band ovable valve stem 6 and pin 7 coaxial rotation, the medial axis that makes the preformed hole 711 on the pin body 71 approaches with medial axis with both sides valve gap 9 and overlaps or fully coincidence, just can make the pipeline formation path at valve body 10 two ends pass through smoothly preformed hole 711 by fluid, make whole transmission pipeline transmission unobstructed.Valve gap 9 is valve parts of valve rod sealing member, be used for connecting or supporting actuator, when needs block fluid, only need rotatable handle 1 band ovable valve stem 6 and pin 7 coaxial rotation, allow the medial axis of medial axis and both sides valve gap 9 of preformed hole 711 of pin body 71 near vertical or fully vertical, can block smoothly ducted Fluid Transport.Only have preformed hole 711 formed passages in the stopcock of the present invention, in addition there is not other sky to stay cavity or headspace, so can not cause the delay of pipeline internal medium, as long as guarantee that machining accuracy is accurate between sealing surface, just can accomplish to make the position, hole 81 of valve seat casing 8 and pin 6 to closely cooperate, can not cause at pin 6 and valve seat casing 8 inner chamber body generation fluid leakages because producing unnecessary space, and can finish the unlatching of stopcock about rotatable handle 90 degree or close, switch is flexible and moment of torsion is little, pressing plate 3 is tightly pushed down junction that ball bearing 4 and dish spring 5 make valve rod 6 and pin 7 and be need not filler and can keep closely cooperating, can allow the sealability of whole valve strengthen, adapt to each type high temp, high pressure, high corrosion operating mode.
In the second embodiment of the present invention, the cross section of preformed hole 711 is circle or round rectangle, the benefit of design is to control the size of flow like this, simultaneously can adapt to different transmission mediums, make medium steady and smooth more in transmission, the remaining part of the present embodiment and the using method of whole stopcock are identical with the first embodiment, therefore be not repeated herein.
In the third embodiment of the present invention, the material of stopcock is pottery, and the usefulness of ceramic plug valve is that using the benefit of pottery is exactly that it can not get rusty, and also can not produce chemical reaction with fluid.Because the fluid that much transmits through valve much all is highly corrosive, high salinity, the remaining part of the present embodiment and the using method of whole stopcock are identical with the first embodiment, therefore be not repeated herein.
Certainly; the present invention can also have other various embodiments; in the situation that do not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make according to the present invention various corresponding changes and distortion; such as mutual combination in any and form new embodiment between first, second and third embodiment, but these corresponding change and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (6)
1. stopcock, on this stopcock one handle is installed, it is characterized in that, described stopcock also comprises a valve rod that is connected with handle, one pin, one valve seat casing, described pin is made of a columniform pin body and the boss that is positioned on the cylindrical body end face, have the preformed hole of a perforation pin body on the described pin body, described valve rod consists of by a cylindrical body base with the integrally formed attachment post of this base, pin is positioned at valve rod bottom, one groove that is complementary with described boss shape is arranged on the described valve rod base, described boss is entrenched in and makes pin and valve rod drive fit in the groove, described valve seat box house has the position, hole that is complementary with the pin body shape, the valve seat box house also has the passage that is used for transmission medium that connects the valve seat casing, the pin body stretches into and makes preformed hole place it inner and form seamless sealing with the position, hole and dock in the position, hole, by handle with sleeve band ovable valve stem, the pin coaxial rotation makes passage and preformed hole be in UNICOM, the two states that disconnects.
2. stopcock according to claim 1, it is characterized in that, also comprising a positioning plate that is socketed in successively on the described valve rod attachment post between handle and the valve body, one pressing plate, one ball bearing and a dishful of spring, described positioning plate is one to have the dovetails of rectangle positioning hole, the upper end shape of described positioning hole and valve rod attachment post is complementary and is socketed on the valve rod attachment post, described pressing plate is fixedly connected on the valve body top and compresses described ball bearing and described dish spring by screw, one valve body is socketed in the outer circumferential of valve seat casing, and two valve gaps are installed in respectively the two ends of described valve body.
3. stopcock according to claim 1 and 2 is characterized in that, the cross section of described preformed hole is circle, fillet trapezoid or round rectangle.
4. stopcock according to claim 1 and 2 is characterized in that, the material of described stopcock is pottery.
5. stopcock according to claim 3 is characterized in that, the material of described stopcock is pottery.
6. stopcock according to claim 4 is characterized in that, the cross section of described preformed hole is circle, fillet trapezoid or round rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110198178 CN102878314A (en) | 2011-07-15 | 2011-07-15 | Plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110198178 CN102878314A (en) | 2011-07-15 | 2011-07-15 | Plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102878314A true CN102878314A (en) | 2013-01-16 |
Family
ID=47479760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110198178 Pending CN102878314A (en) | 2011-07-15 | 2011-07-15 | Plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102878314A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595546A (en) * | 2015-01-30 | 2015-05-06 | 周玉翔 | Industrial water supply and drainage adjusting valve head |
| WO2018036267A1 (en) * | 2016-08-26 | 2018-03-01 | 赛洛克流体设备成都有限公司 | Manual piston valve apparatus capable of respectively sealing upper and lower valve seat |
| CN110185819A (en) * | 2019-06-24 | 2019-08-30 | 派罗(廊坊)机器人科技有限公司 | A kind of shut-off valve |
| CN114623254A (en) * | 2020-12-10 | 2022-06-14 | 中国科学院大连化学物理研究所 | High-temperature-resistant corrosion-resistant valve for sampling flue gas and application thereof |
-
2011
- 2011-07-15 CN CN 201110198178 patent/CN102878314A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595546A (en) * | 2015-01-30 | 2015-05-06 | 周玉翔 | Industrial water supply and drainage adjusting valve head |
| WO2018036267A1 (en) * | 2016-08-26 | 2018-03-01 | 赛洛克流体设备成都有限公司 | Manual piston valve apparatus capable of respectively sealing upper and lower valve seat |
| CN110185819A (en) * | 2019-06-24 | 2019-08-30 | 派罗(廊坊)机器人科技有限公司 | A kind of shut-off valve |
| CN110185819B (en) * | 2019-06-24 | 2024-04-26 | 派罗(廊坊)机器人科技有限公司 | Stop valve |
| CN114623254A (en) * | 2020-12-10 | 2022-06-14 | 中国科学院大连化学物理研究所 | High-temperature-resistant corrosion-resistant valve for sampling flue gas and application thereof |
| CN114623254B (en) * | 2020-12-10 | 2023-09-26 | 中国科学院大连化学物理研究所 | High-temperature-resistant corrosion-resistant valve for flue gas sampling and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102878314A (en) | Plug valve | |
| CN203847730U (en) | Seal cartridge embedded type throttle valve | |
| CN211501676U (en) | Novel special two-way soft sealing flange butterfly valve of sea water | |
| CN101772665B (en) | Valve assembly | |
| CN201944327U (en) | Pipeline ball valve | |
| CN101943272A (en) | Rotary cutting valve | |
| CN202109021U (en) | Fluoroplastic full-lining pneumatic ball valve special for chlor-alkali | |
| CN202176743U (en) | Plug valve | |
| CN104613183B (en) | A kind of high pressure butterfly valve | |
| CN101368633A (en) | Automatic swing type check valve | |
| CN111765264B (en) | Plug valve | |
| CN101672376B (en) | Plug cock type mud valve | |
| CN109357035B (en) | Axial sealing ball valve of valve rod | |
| CN204420200U (en) | Cylinder-rotating three-way diverter valve | |
| RU148782U1 (en) | PIPE LATCH | |
| CN201502730U (en) | Cock-type mud valve | |
| CN202561109U (en) | V-shaped ball valve | |
| CN103375595A (en) | Zero-friction bidirectional metal seal butterfly valve | |
| RU70954U1 (en) | SEMI-HOUSING VALVE LATCH AND VALVE LATCH | |
| CN202100753U (en) | Ball valve capable of realizing assembling control | |
| CN103174847A (en) | Polymer injection high-pressure ball valve driven by worm wheel | |
| CN211501723U (en) | Special metal seal spherical rotary valve with protection function for seawater | |
| CN208431410U (en) | A kind of wear-resistant eccentric ball valve | |
| CN102269277B (en) | Full-sealing zero leakage plug valve | |
| CN213512191U (en) | High-temperature ball valve |
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: 20130116 |