CN104653802A - Lining plug valve - Google Patents
Lining plug valve Download PDFInfo
- Publication number
- CN104653802A CN104653802A CN201510097690.1A CN201510097690A CN104653802A CN 104653802 A CN104653802 A CN 104653802A CN 201510097690 A CN201510097690 A CN 201510097690A CN 104653802 A CN104653802 A CN 104653802A
- Authority
- CN
- China
- Prior art keywords
- lining
- valve body
- passage
- cock
- valve
- 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
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
- F16K5/0257—Packings
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Valve Housings (AREA)
Abstract
The invention provides a lining plug valve, which comprises a valve body, wherein the valve body is internally provided with a cavity, a first passage and a second passage, the first passage and the second passage are respectively communicated with the cavity, the inner surfaces of the cavity, the first passage and the second passage are integrally provided with a valve lining, a plurality of adhesive guide grooves are formed in the inner surfaces of the first passage and the second passage in a spacing way, each adhesive guide groove respectively extends from one side of the cavity to the outer wall of the valve body, and the valve lining is used for covering all adhesive guide grooves. The lining plug valve has the advantages that by additionally forming the adhesive guide grooves in the first passage and the second passage, air bubbles easily formed in the injection molding process of the valve lining are avoided, and the sealing property and corrosion-resistant property of the valve are guaranteed; the valve lining is combined with the valve body in a groove way by the adhesive guide grooves, so the strength is higher.
Description
Technical field
The present invention relates to valve technology field, particularly a kind of good airproof performance, lining stop cock that corrosion resistance is strong.
Background technique
Stopcock is a kind of throughway valve of snap switch, move with wiping action, and can prevent the contact with flowing medium when standard-sized sheet completely, therefore it also can be used for the medium with suspended particulate usually owing to revolving between sealing surface.Another key property of stopcock is that it is easy to adapt to multi-channel structure, so that a valve can obtain two, three, even four different runners.The design of pipe-line system can be simplified like this, reduce some connection fittings needed in valve consumption and equipment.
The valve body of stopcock and cock are normally cast by metal material and are formed.Because valve is in the middle of fluid system, may corrode under the cock of metal material and fluid long contact, cause valve to turn off not tight; Friction between metal also may cause the wearing and tearing on surface, causes valve closing sealing to be deteriorated.In order to make valve long service life, the surface of contact of valve body and cock can increase corrosion resistant injection molded layers structure, such as Chinese patent CN2405082Y discloses a kind of cock valve with lining made of PTEF, and by making with cock outer lining polytetrafluoroethylene floor in valve body, valve corrosion resistance is strong, sealability is stablized for it.The manufacture of this stopcock is using mach valve body as skeleton, and under the cooperation of specialized mould, one-body molded inner lining structure, the gap thickness of valve body and specialized mould determines the injection moulding thickness of inner lining material.Because this injection moulding thickness can not be very large, larger resistance can be there is in the space that the inner lining material of flow-like is full of between valve body and specialized mould, if misoperation, bubble may be imbedded in the liner of solidification, in solidification, inner lining material easily subsides formation seal defect first, and second bubbles burst may become the passage of liquid corrosion valve interior wall in valve.
Therefore, be necessary to provide a kind of new lining stop cock structure to solve the problems referred to above.
Summary of the invention
Main purpose of the present invention is the lining stop cock providing a kind of good airproof performance, corrosion resistance strong.
The present invention is achieved through the following technical solutions above-mentioned purpose: a kind of lining stop cock, comprise valve body, be provided with cavity in described valve body and be communicated with first passage and the second channel of described cavity respectively, the internal surface of described cavity, first passage and second channel is one-body molded valve body liner, the internal surface of described first passage and second channel is provided with somely spaced apart leads glue groove, described glue groove of leading all extends from described cavity side toward described valve body outer wall, leads glue groove described in described valve body liner covers all.
Concrete, described lining stop cock also comprises the cock body with shank and piston part and described piston part is accommodated in the valve gap in described cavity.
Further, described valve body is respectively provided with a flange at described first passage and second channel outer vent position, and two described flange are all provided with scaffold towards described valve gap direction, described scaffold offers not through the mounting hole of described flange.
Further, described piston part comprises the top be connected with described shank, the first side joint extended from both sides, described top and the second side joint and connects the bottom of described first side joint and the second side joint simultaneously, and described top, the first side joint, the second side joint and bottom surround the liquid pass hole that penetrates described piston part.
Further, surface, described piston part is covered with cock outer lining, and described valve body liner internal surface and described cock outer lining outer surface are sealed and matched.
Further, the internal surface that described valve body liner is arranged in described cavity is the first little conical surface of outer imperial palace, second conical surface that the outer surface of described cock outer lining matches in, structure identical with described first conical degree of conical surface.
Further, described piston part is provided with the injecting hole of some through described liquid pass holes and piston part outer wall, and described cock outer lining occupies space in whole described injecting hole.
Adopt technique scheme, the beneficial effect of technical solution of the present invention is: lead glue groove by setting up at first passage and second channel, make not easily to leave bubble in valve liner injection molding process, ensure that sealing and the corrosion resistance of valve, lead glue groove makes valve body liner be combined with channel away with valve body simultaneously, and intensity is better.
Accompanying drawing explanation
Fig. 1 is the whole-cutaway view of lining stop cock of the present invention;
Fig. 2 is the whole-cutaway view of valve body;
Fig. 3 is the stereogram of valve body;
Fig. 4 is the stereogram of cock body.
Numeral in figure:
1-valve body, 11-cavity, 121-first passage, 122-second channel, 13-flange, 14-scaffold, 141-mounting hole, 1a-valve body liner, 12a-leads glue groove;
2-cock body, 21-shank, 22-piston part, 221-top, 2221-first side joint, 2222-second side joint, bottom 223-, 224-liquid pass hole, 225-injecting hole, 2a-cock outer lining;
3-valve gap.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
As shown in Figure 1 to Figure 3, a kind of lining stop cock of the present invention, comprise the valve body 1 with cavity 11, the cock body 2 with shank 21 and piston part 22 and the valve gap 3 piston part 22 is accommodated in cavity 11, the first passage 121 and second channel 122 that are communicated with cavity 11 is also provided with in valve body 1, first passage 121, the internal surface of second channel 122 is provided with somely spaced apart leads glue groove 12a, lead glue groove 12a all to extend from cavity 11 side toward valve body 1 outer wall, cavity 11, the surface of first passage 121 and second channel 122 is one-body molded valve body liner 1a, valve body liner 1a covers and leads glue groove 12a.When injection molding valve body liner 1a, the inner lining material of melting will flow valve body 1 with the gap of mould, owing to leading the existence of glue groove 12a, it is relatively little that melted material flows through resistance, therefore melted material can occupy the space of leading glue groove 12a fast, then to lead toward both sides diffusion centered by glue groove 12a, adjacent two melted material contact merging led glue groove 12a and extrude, occupy adjacent gap of leading between glue groove 12a then completely.So first valve body liner 1a shaping in not easily leave bubble, the sealing of valve and corrosion resistance can ensure, second valve body liner 1a and valve body 1 are with groove combination of shape and state, and intensity is better.
As shown in Figure 2 and Figure 3, valve body 1 is respectively provided with a flange 13 at first passage 121 and second channel 122 outer vent position, two flange 13 are provided with a pair scaffold 14 towards valve gap 3 direction, each scaffold 14 offer not through the mounting hole 141 of flange 13.Can be directly fixed on scaffold 14 when being also provided with complicated driving mechanism above stopcock, valve gap 3 position is not affected when driving mechanism is by fixing through the fixed block of mounting hole 141, also do not affect the agent structure of flange 13, location is convenient and firm.
As Figure 1 and Figure 4, piston part 22 comprises the top 221 be connected with shank 21, the first side joint 2221 extended from both sides, top 221 and the second side joint 2222 and connects the bottom 223 of the first side joint 2221 and the second side joint 2222 simultaneously, top 221, first side joint 2221, second side joint 2222 and bottom 223 surround the liquid pass hole 224 that penetrates piston part 22, surface, piston part 22 is covered with cock outer lining 2a, and valve body liner 1a internal surface and cock outer lining 2a outer surface are sealed and matched.When cock 2 rotate to liquid pass hole 224 be communicated with first passage 121 and second channel 122 simultaneously time, valve open, liquid freely can pass through valve, and the rotation angle of cock body 2 affects the flow of liquid by valve.Cock outer lining 2a can play the effect of isolated fluid and cock body 2, arrives the effect preventing cock body 2 from corroding.Because valve body liner 1a and cock outer lining 2a all can be obtained by injection moulding, both surface of contact are smooth, and sealing effect is excellent and stable.
As Figure 1 and Figure 4, the internal surface that valve body liner 1a is arranged in cavity 11 is little first conical surface (mark) of outer imperial palace, second conical surface (mark) that the outer surface of cock outer lining 2a matches in, structure identical with the first conical degree of conical surface, as long as apply less pressure at valve gap 3 position to cock body 2, the sealing between first conical surface and second conical surface can be guaranteed, simultaneously less on the impact of valve regulated resistance.
As Figure 1 and Figure 4, piston part 22 is provided with the injecting hole 225 of some through liquid pass holes 224 and piston part 22 outer wall, and cock outer lining 2a occupies space in whole injecting hole 225.If do not have injecting hole 225, the cock outer lining 2a be coated on outside piston part 22 is shell-like structure, and intensity is low, and the rear cock outer lining 2a of permanent use is easy to crack so that lost efficacy to the protective action of cock body 2; Due to the existence of injecting hole 225, shaping cock outer lining 2a is network-like, forms more stable entirety with cock body 2, reduces cock outer lining 2a cracking risk, improves working life.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (7)
1. a lining stop cock, comprise valve body, be provided with cavity in described valve body and be communicated with first passage and the second channel of described cavity respectively, the internal surface of described cavity, first passage and second channel is one-body molded valve body liner, it is characterized in that: the internal surface of described first passage and second channel is provided with somely spaced apart leads glue groove, described glue groove of leading all extends from described cavity side toward described valve body outer wall, leads glue groove described in described valve body liner covers all.
2. lining stop cock according to claim 1, is characterized in that: described lining stop cock also comprises the cock body with shank and piston part and described piston part is accommodated in the valve gap in described cavity.
3. lining stop cock according to claim 2, it is characterized in that: described valve body is respectively provided with a flange at described first passage and second channel outer vent position, two described flange are all provided with scaffold towards described valve gap direction, described scaffold offer not through the mounting hole of described flange.
4. the lining stop cock according to Claims 2 or 3, it is characterized in that: described piston part comprises the top be connected with described shank, the first side joint extended from both sides, described top and the second side joint and connects the bottom of described first side joint and the second side joint simultaneously, and described top, the first side joint, the second side joint and bottom surround the liquid pass hole that penetrates described piston part.
5. lining stop cock according to claim 4, is characterized in that: surface, described piston part is covered with cock outer lining, and described valve body liner internal surface and described cock outer lining outer surface are sealed and matched.
6. lining stop cock according to claim 5, it is characterized in that: the internal surface that described valve body liner is arranged in described cavity is the first little conical surface of outer imperial palace, second conical surface that the outer surface of described cock outer lining matches in, structure identical with described first conical degree of conical surface.
7. lining stop cock according to claim 5, is characterized in that: described piston part is provided with the injecting hole of some through described liquid pass holes and piston part outer wall, and described cock outer lining occupies space in whole described injecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510097690.1A CN104653802A (en) | 2015-03-05 | 2015-03-05 | Lining plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510097690.1A CN104653802A (en) | 2015-03-05 | 2015-03-05 | Lining plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104653802A true CN104653802A (en) | 2015-05-27 |
Family
ID=53245265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510097690.1A Pending CN104653802A (en) | 2015-03-05 | 2015-03-05 | Lining plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104653802A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3703910A (en) * | 1971-02-24 | 1972-11-28 | Xomox Corp | Means to prevent external plug valve leakage |
| US3916943A (en) * | 1973-08-27 | 1975-11-04 | John L Dore & 0 Co | Plastic lined plug valve |
| CN2656743Y (en) * | 2003-11-22 | 2004-11-17 | 宣达实业集团有限公司 | Stop cock with plastic lining |
| CN201875184U (en) * | 2010-11-30 | 2011-06-22 | 项建新 | Vacuum ball valve with fluorine liner |
| CN104103604A (en) * | 2013-04-07 | 2014-10-15 | 力成科技股份有限公司 | Packaging structure and manufacturing method thereof |
| CN204512510U (en) * | 2015-03-05 | 2015-07-29 | 氟络塞尔特种阀门(苏州)有限公司 | The stopcock of belt supporting frame |
| CN204553899U (en) * | 2015-03-05 | 2015-08-12 | 氟络塞尔特种阀门(苏州)有限公司 | Lining stop cock |
-
2015
- 2015-03-05 CN CN201510097690.1A patent/CN104653802A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3703910A (en) * | 1971-02-24 | 1972-11-28 | Xomox Corp | Means to prevent external plug valve leakage |
| US3916943A (en) * | 1973-08-27 | 1975-11-04 | John L Dore & 0 Co | Plastic lined plug valve |
| CN2656743Y (en) * | 2003-11-22 | 2004-11-17 | 宣达实业集团有限公司 | Stop cock with plastic lining |
| CN201875184U (en) * | 2010-11-30 | 2011-06-22 | 项建新 | Vacuum ball valve with fluorine liner |
| CN104103604A (en) * | 2013-04-07 | 2014-10-15 | 力成科技股份有限公司 | Packaging structure and manufacturing method thereof |
| CN204512510U (en) * | 2015-03-05 | 2015-07-29 | 氟络塞尔特种阀门(苏州)有限公司 | The stopcock of belt supporting frame |
| CN204553899U (en) * | 2015-03-05 | 2015-08-12 | 氟络塞尔特种阀门(苏州)有限公司 | Lining stop cock |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |