CN202971978U - Plug valve - Google Patents
Plug valve Download PDFInfo
- Publication number
- CN202971978U CN202971978U CN 201220566097 CN201220566097U CN202971978U CN 202971978 U CN202971978 U CN 202971978U CN 201220566097 CN201220566097 CN 201220566097 CN 201220566097 U CN201220566097 U CN 201220566097U CN 202971978 U CN202971978 U CN 202971978U
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- CN
- China
- Prior art keywords
- valve
- valve body
- cock
- plug
- described 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a plug valve which comprises a valve body, a valve cover, a valve rod, a plug and a sealing gasket, wherein the valve cover is fixed on the valve body; the valve rod is vertically arranged at the middle part of the valve cover in a penetrating manner; a handle is arranged at the upper end of the valve rod; the lower end of the valve rod is fixedly connected with the upper part of the plug; the plug is perpendicular to a valve body channel, and is vertically arranged in the valve body in a penetrating manner; a through hole that is communicated with the valve body channel and has the same diameter with that of the valve body channel is formed at the waist of the plug transversely and radially; the sealing gasket is arranged between the valve cover and the valve body; a sealing device is arranged between the valve rod and the valve cover; two cylindrical grooves are symmetrically formed on the two radial sides in a longitudinal direction of the waist of the plug; axle centers of the two cylindrical grooves and an axle center of the through hole are in the same horizontal plane and perpendicular to each other; sealing rings are tightly fixed and clamped on the two cylindrical grooves; the internal diameter of each sealing ring is greater than the diameter of the valve body channel; and the sealing rings are matched with the surface of an inner cavity of the valve body in a rotary sealing manner. According to the plug valve, a sealing structure of the plug valve is simplified; the production cost is lowered; the operation is simple and convenient; and the service life of the plug valve can be prolonged remarkably.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of stopcock.
Background technique
Stopcock is widely used in oil, chemical industry, coal gas, rock gas, liquefied petroleum gas (LPG), HVAC industry and general industry.Due to requirement of engineering, when the stopcock cock is closed, generally all need sealing between stopcock valve interior wall and cock, in order to reach sealing effect, existing stopcock generally arranges valve seat between valve interior wall and cock, again between valve interior wall and valve seat, between valve seat and cock, lining etc. is set and carries out encapsulation process, seal structure complex so not only, difficulty of processing is larger, sealing effect is relatively poor, and required obturator is more, and cost is higher, and assembling and dismounting are also very loaded down with trivial details.Simultaneously, existing stopcock does not arrange the vertical position correcting device of cock, and the multiple rotary through handle tends to cause the up and down of valve rod and cock, causes leak of liquid, seriously reduces the working life of stopcock.
The model utility content
For solving the problems of the technologies described above, we have proposed a kind of stopcock, can simplify the sealing configuration between cock and valve interior wall, reduce obturator, reduce production costs, and can make again assembly and disassembly simple to operation.Simultaneously, this stopcock can also carry out the automatic calibration compensation to the vertical position of cock, significantly improves the working life of stopcock.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of stopcock, comprise valve body, valve gap, valve rod, cock and gasket seal, described valve gap is fixed on described valve body, described valve gap middle part vertically is equipped with described valve rod, described valve rod upper end is provided with handle, the lower end is fixed in described cock top, described cock vertically is arranged in described valve body perpendicular to described valve channel, described cock waist transverse radial offers a through hole identical with described valve channel perforation and bore, be provided with gasket seal between described valve gap and described valve body, be provided with seal arrangement between described valve rod and described valve gap; Described cock waist vertical diameter offers two tubular grooves to bilateral symmetry, and described two tubular groove axle center and described through hole axle center are on same level, and be and mutually vertical; Described two tubular grooves tighten and are arranged with seal ring, and described internal diameter of the seal ring is greater than described valve channel bore, and coordinate with described body cavity surface rotary seal.
Preferably, be provided with belleville spring between described cock top and described valve gap.
Pass through technique scheme, a kind of stopcock of the present utility model, by directly install the seal ring that can coordinate with body cavity surface rotary seal in its cock, simplified the sealing configuration between cock and valve interior wall, reduced obturator, reduced cost of production, can make again assembly and disassembly simple to operation; Simultaneously, a kind of stopcock of the present utility model, by between described cock top and described valve gap, belleville spring being set, for being in correct vertical position, cock provides pretightening force, be able to the vertical position of cock is carried out the effect of automatic calibration compensation, significantly improved the working life of stopcock.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only embodiment's accompanying drawing of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Structural profile schematic diagram when Fig. 1 is the disclosed a kind of stopcock handle opening state of the utility model embodiment;
Fig. 2 is disclosed a kind of stopcock rotatable handle 90 degree of the utility model embodiment, the structural profile schematic diagram during closed condition;
Fig. 3 is that the disclosed a kind of stopcock cock of the utility model embodiment is along through hole horizontal axis generalized section.
Numeral and represented corresponding part or the toponym of letter in figure:
1. valve body 11. valve channel 2. valve gap 3. valve rod 4. cock 41. through holes
42. tubular groove 5. gasket seal 6. handle 7. seal ring 8. belleville springs
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Below in conjunction with embodiment and embodiment, the utility model is described in further detail.
Embodiment.
As shown in Figure 1 and Figure 2, a kind of stopcock, comprise valve body 1, valve gap 2, valve rod 3, cock 4 and gasket seal 5, valve gap 2 is fixed on valve body 1, valve gap 2 middle parts vertically are equipped with valve rod 3, valve rod 3 upper ends are provided with handle 6, the lower end is fixed in cock 4 tops, cock 4 vertically is arranged in valve body 1 perpendicular to valve channel 11, cock 4 waist transverse radial offer a through hole 41 identical with valve channel 11 perforations and bore, be provided with gasket seal 5 between valve gap 2 and valve body 1, be provided with seal arrangement between valve rod 3 and valve gap 2; As Fig. 1, shown in Figure 3, cock 4 waist vertical diameters offer two tubular groove 42, two tubular groove 42 axle center and through hole 41 axle center on same level to bilateral symmetry, and mutually vertical; Two tubular grooves 42 tighten and are arranged with seal ring 7, and seal ring 7 internal diameters are greater than valve channel 11 bores, and coordinate with valve body 1 surface of internal cavity rotary seal; Be provided with belleville spring 8 between cock 4 tops and valve gap 2.
When stopcock was in opening state, through hole 41 connected with valve channel 11; When stopcock handle 6 90-degree rotations, when being in closed condition, seal ring 7 is subjected to handle 6 interlocks by cock 4 and valve rod 3, and also 90-degree rotation, seal valve channel 11.
Pass through above-described embodiment, a kind of stopcock of the present utility model, adopt and directly install the seal ring 7 that can coordinate with body cavity surface rotary seal in its cock 4, greatly simplified the sealing configuration between cock 4 and valve interior wall, reduced obturator, reduced cost of production, can make again assembly and disassembly simple to operation; Simultaneously, a kind of stopcock of the present utility model by between cock 4 tops and valve gap 2, belleville spring 8 being set, provides pretightening force for cock 4 is in correct vertical position, is able to the vertical position of cock 4 is carried out the effect of automatic calibration compensation.
Above-described is only the preferred implementation of a kind of stopcock of the present utility model; should be understood that; for the person of ordinary skill of the art; under the prerequisite that does not break away from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (2)
1. stopcock, it is characterized in that, comprise valve body, valve gap, valve rod, cock and gasket seal, described valve gap is fixed on described valve body, described valve gap middle part vertically is equipped with described valve rod, described valve rod upper end is provided with handle, the lower end is fixed in described cock top, described cock vertically is arranged in described valve body perpendicular to described valve channel, described cock waist transverse radial offers a through hole identical with described valve channel perforation and bore, be provided with gasket seal between described valve gap and described valve body, be provided with seal arrangement between described valve rod and described valve gap, described cock waist vertical diameter offers two tubular grooves to bilateral symmetry, described two tubular groove axle center and described through hole axle center are on same level, and mutually vertical, described two tubular grooves tighten and are arranged with seal ring, and described internal diameter of the seal ring is greater than described valve channel bore, and coordinate with described body cavity surface rotary seal.
2. a kind of stopcock according to claim 1, is characterized in that, is provided with belleville spring between described cock top and described valve gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220566097 CN202971978U (en) | 2012-10-31 | 2012-10-31 | Plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220566097 CN202971978U (en) | 2012-10-31 | 2012-10-31 | Plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971978U true CN202971978U (en) | 2013-06-05 |
Family
ID=48513054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220566097 Expired - Fee Related CN202971978U (en) | 2012-10-31 | 2012-10-31 | Plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202971978U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747746A (en) * | 2013-12-30 | 2015-07-01 | 宁波嘉和机电有限公司 | Water-gas hand valve |
| CN105518359A (en) * | 2013-07-03 | 2016-04-20 | T·A·哈特曼 | Valve with trunnions and method of assembling the same |
| CN107883008A (en) * | 2016-09-30 | 2018-04-06 | 东京应化工业株式会社 | Plug valve, liquid supply method, fluid Supplying apparatus and apparatus for coating |
| CN111577917A (en) * | 2020-06-02 | 2020-08-25 | 葛兴明 | Pipeline plug valve for chemical industry |
-
2012
- 2012-10-31 CN CN 201220566097 patent/CN202971978U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105518359A (en) * | 2013-07-03 | 2016-04-20 | T·A·哈特曼 | Valve with trunnions and method of assembling the same |
| CN104747746A (en) * | 2013-12-30 | 2015-07-01 | 宁波嘉和机电有限公司 | Water-gas hand valve |
| CN107883008A (en) * | 2016-09-30 | 2018-04-06 | 东京应化工业株式会社 | Plug valve, liquid supply method, fluid Supplying apparatus and apparatus for coating |
| TWI720232B (en) * | 2016-09-30 | 2021-03-01 | 日商東京應化工業股份有限公司 | Plug valve, liquid supply method, liquid supply apparatus and coating apparatus |
| CN111577917A (en) * | 2020-06-02 | 2020-08-25 | 葛兴明 | Pipeline plug valve for chemical industry |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20161031 |