CN203223577U - Small-aperture gate valve - Google Patents
Small-aperture gate valve Download PDFInfo
- Publication number
- CN203223577U CN203223577U CN 201320156796 CN201320156796U CN203223577U CN 203223577 U CN203223577 U CN 203223577U CN 201320156796 CN201320156796 CN 201320156796 CN 201320156796 U CN201320156796 U CN 201320156796U CN 203223577 U CN203223577 U CN 203223577U
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- Prior art keywords
- valve
- gate
- medium flow
- valve body
- gate valve
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Abstract
The utility model provides a small-aperture gate valve, comprising a valve body, a valve cover positioned above the valve body, a gate plate vertically moving in the valve body, a gate valve cavity for containing the gate plate, an upper valve holder and a lower valve holder; a medium flowing-in channel and a medium flowing-out channel are arranged in the valve body and are both obliquely arranged; the upper end of the valve plate and the upper valve holder form an upper sealing face; and the lower end of the valve plate and the lower valve holder form a lower sealing face. A valve gate channel hole of the small-aperture gate valve has an inclining angle of 3 degrees, the sealing face of the gate valve is simply machined by a special machine tool, the body of the sealing face of the gate valve is sealed, and the sealing property is greatly improved.
Description
Technical field
The utility model relates to valve field, relates in particular to a kind of small-bore gate valve.
Background technique
Hard seal gate valve has advantages such as flow resistance is little, heatproof is high, open and close torque is little, is widely used at present in the system such as tap water.At present, existing gate valve has generally comprised valve body, valve rod, flashboard, wherein, valve body includes the valve body body, the valve body body is provided with medium flow channel, medium flow pass, valve pocket, described valve pocket and medium flow channel, the equal conducting of medium flow pass, described medium flow channel, the equal along continuous straight runs setting of medium flow pass.Be generally less than 1 " gate valve be forging; sealing surface is edge circle; the error when the two cooperates might produce leakage; because port hole is little; processing sealing surface difficulty, is difficult to reach sealing fully, causes many medium temperatures high and require the little occasion of system's flow resistance; select the big stop valve of relative flow resistance or the low ball valve of heatproof relatively for use because gate valve can't reach zero leakage, causes system can't reach optimum performance or increases system cost.Moreover, the gate valve body of this structure, because described medium flow channel, the equal along continuous straight runs setting of medium flow pass, therefore, do not use at gate valve, have the part medium and be trapped in medium flow channel, the medium flow pass, when different medium is controlled, can cause the pollution of medium.
Therefore, be necessary prior art is done further improvement.
Summary of the invention
The purpose of this utility model is to provide a kind of small-bore gate valve of easy processing valve body sealing surface.
For reaching aforementioned purpose, a kind of small-bore gate valve of the utility model, the flashboard, the gate valve chamber that holds described flashboard and upper valve base and the lower valve base that comprise valve body, be arranged in the valve gap of described valve body top, move up and down at described valve body, be provided with medium flow channel and medium flow pass in the described valve body, the described medium flow channel of its kind and medium flow pass all are obliquely installed, described flashboard upper end forms sealing surface with upper valve base, and described flashboard lower end and lower valve base form lower sealing surface.
According to an embodiment of the present utility model, the slanted angle of described medium flow channel and medium flow pass and substantially horizontal is 3 °.
According to an embodiment of the present utility model, described flashboard is from the outward-dipping predetermined angle of the supreme sealing surface of lower sealing surface.
The beneficial effects of the utility model: gate valve port hole of the present utility model has 3 ° of angles of inclination, by the lathe of special use the sealing surface of gate valve is processed, and processing is simple, by sealing surface of the discharge gate being carried out the body sealing, makes sealability improve greatly.
Description of drawings
Fig. 1 is the structural representation of the small-bore gate valve of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description.
See also Fig. 1, it is the structural representation of the small-bore gate valve of the utility model.As shown in Figure 1, it comprises handwheel 1, valve rod 2, valve body 3, be arranged in the valve gap 4 of valve body 3 tops, the flashboard 5 in that valve body 3 moves up and down by valve rod 2, the gate valve chamber 6 that holds flashboard 5 and on valve 71 and lower valve base 72, be provided with medium flow channel 81 and medium flow pass 82 in the valve body 3, flashboard 5 upper ends and upper valve base 71 form goes up sealing surface 91, flashboard 5 lower ends and lower valve base 72 form lower sealing surface 92, and flashboard 5 is from lower sealing surface 92 supreme sealing surface 91 outward-dipping predetermined angles.Wherein, medium flow channel 81 and medium flow pass 82 all are obliquely installed, and it is 3 ° with the slanted angle A of substantially horizontal respectively.
Among this embodiment, the angle that medium flow channel 81 and medium flow pass 82 tilt matches with the lathe bed angle that sealing surface of the discharge gate is processed professional lathe, be fixed on the worktable of lathe when gate valve body 3 after, the lathe knife bar can be along the processing that 3 ° of media of valve body flow into and flow pass enters valve body sealing surface.
Among this embodiment, the valve body medium flows into and flow pass angle of inclination A is 3 °, and the bore of corresponding gate valve is 1/2 " 1 ".In other embodiments, the angle of inclination in its required valve channel hole of the processing of the valve body sealing surface of different bores can be decided according to actual conditions.
Above-mentioned explanation has fully disclosed embodiment of the present utility model.It is pointed out that and be familiar with the scope that any change that the person skilled in art does embodiment of the present utility model does not all break away from claims of the present utility model.Correspondingly, the scope of claim of the present utility model also is not limited only to previous embodiment.
Claims (3)
1. small-bore gate valve, the flashboard, the gate valve chamber that holds described flashboard and upper valve base and the lower valve base that comprise valve body, be arranged in the valve gap of described valve body top, move up and down at described valve body, be provided with medium flow channel and medium flow pass in the described valve body, it is characterized in that: described medium flow channel and medium flow pass all are obliquely installed, described flashboard upper end forms sealing surface with upper valve base, and described flashboard lower end and lower valve base form lower sealing surface.
2. small-bore gate valve according to claim 1, it is characterized in that: the slanted angle of described medium flow channel and medium flow pass and substantially horizontal is 3 °.
3. small-bore gate valve according to claim 1, it is characterized in that: described flashboard is from the outward-dipping predetermined angle of the supreme sealing surface of lower sealing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320156796 CN203223577U (en) | 2013-04-01 | 2013-04-01 | Small-aperture gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320156796 CN203223577U (en) | 2013-04-01 | 2013-04-01 | Small-aperture gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203223577U true CN203223577U (en) | 2013-10-02 |
Family
ID=49250581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320156796 Expired - Lifetime CN203223577U (en) | 2013-04-01 | 2013-04-01 | Small-aperture gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203223577U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216633A (en) * | 2013-04-01 | 2013-07-24 | 无锡富盛阀业有限公司 | Small-caliber gate valve |
| CN114645953A (en) * | 2022-03-21 | 2022-06-21 | 南方阀门科技有限公司 | Anti-freezing and anti-blocking molten salt gate valve with inclined flow channel |
-
2013
- 2013-04-01 CN CN 201320156796 patent/CN203223577U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216633A (en) * | 2013-04-01 | 2013-07-24 | 无锡富盛阀业有限公司 | Small-caliber gate valve |
| CN114645953A (en) * | 2022-03-21 | 2022-06-21 | 南方阀门科技有限公司 | Anti-freezing and anti-blocking molten salt gate valve with inclined flow channel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131002 |