CN204284546U - A kind of universal regulated safety check valve flap structure - Google Patents
A kind of universal regulated safety check valve flap structure Download PDFInfo
- Publication number
- CN204284546U CN204284546U CN201420695209.XU CN201420695209U CN204284546U CN 204284546 U CN204284546 U CN 204284546U CN 201420695209 U CN201420695209 U CN 201420695209U CN 204284546 U CN204284546 U CN 204284546U
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- China
- Prior art keywords
- flap
- rocking bar
- cylindrical hole
- shaft
- flap shaft
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Abstract
The utility model relates to a kind of universal regulated safety check valve flap structure, comprises flap, valve seat, rocking bar, locking nut and flap shaft; Described flap and valve seat cooperatively interact, and have the blind cylindrical hole that an appearance flap shaft embeds, have the cylindrical hole that an appearance flap shaft is passed simultaneously on rocking bar at the center of flap and the opposing side of valve seat; Described flap shaft is through in the blind cylindrical hole embedded after the cylindrical hole on rocking bar on flap, thus flap is connected with rocking bar, and the tail end of flap shaft is locked by locking nut, described flap shaft is positioned at one section of shape spherical in shape of the cylindrical hole of rocking bar.The utility model has the advantage of: flap shaft is spherical, contact with flap hole as linear contact lay, flap angle realizes Universal rotary, valve clack sealing surface adjustable extent is far longer than common flap, no matter how severe operating mode is, when medium flows backwards, valve clack sealing surface can be fitted with sealing surface of seat all the time, ensures sealing.
Description
Technical field
The utility model relates to a kind of safety check, particularly a kind of universal regulated safety check valve flap structure.
Background technique
Common flap shaft is cylinder type, flap hole is also cylinder type, flap utilizes the gap between flap shaft and rocking bar hole to adjust usually, but this adjustment is limited to very much, adjustable extent is wideless, valve in use sometimes because sealing surface angle cannot adjust to the right place cause poorly sealed, medium reveal, bring hidden danger to Power Plant; The collision of flap shaft and rocking bar hole fierceness simultaneously causes rocking bar hole increasing, and flap shaft is more and more thinner, and along with the increasing in gap, valve clack sealing surface and sealing surface of seat produce and misplace, and valve seal lost efficacy.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of universal regulated safety check valve flap structure that valve clack sealing surface can be fitted with sealing surface of seat all the time that can ensure.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of universal regulated safety check valve flap structure, and its innovative point is: comprise flap, valve seat, rocking bar, locking nut and flap shaft;
Described flap and valve seat cooperatively interact, and have the blind cylindrical hole that an appearance flap shaft embeds, have the cylindrical hole that an appearance flap shaft is passed simultaneously on rocking bar at the center of flap and the opposing side of valve seat;
Described flap shaft is through in the blind cylindrical hole embedded after the cylindrical hole on rocking bar on flap, thus flap is connected with rocking bar, and the tail end of flap shaft is locked by locking nut, described flap shaft is positioned at one section of shape spherical in shape of the cylindrical hole of rocking bar.
The utility model has the advantage of: flap shaft is spherical, contact with flap hole as linear contact lay, flap angle realizes Universal rotary, and valve clack sealing surface adjustable extent is far longer than common flap, and no matter how severe operating mode is, when medium flows backwards, valve clack sealing surface can be fitted with sealing surface of seat all the time, ensures sealing, simultaneously due to flap shaft and rocking bar hole area of contact little, flap shaft and rocking bar hole relative wear are little, thus extend valve working life.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of universal regulated safety check valve flap structure of the present utility model.
Embodiment
Schematic diagram is as shown in Figure 1 known, and universal regulated safety check valve flap structure of the present utility model comprises flap 1, valve seat 2, rocking bar 3, locking nut 4 and flap shaft 5.
The sealing surface of flap 1 and the sealing surface of valve seat 2 cooperatively interact, and have the blind cylindrical hole that an appearance flap shaft 5 embeds at the center of the opposing side of flap 1 and valve seat 2, while there is the cylindrical hole that an appearance flap shaft 5 passes on rocking bar 3.
Flap shaft 5 is through in the blind cylindrical hole embedded after the cylindrical hole on rocking bar 3 on flap 1, thus flap 1 is connected with rocking bar 3, and the tail end of flap shaft 5 is locked by locking nut 4, be positioned at one section of shape spherical in shape of the cylindrical hole of rocking bar 3 in flap shaft 5.
When regulating, one section that flap shaft 5 is positioned at the cylindrical hole of rocking bar 3 is designed to ball shape, valve shaft 5 is made to become linear contact lay with the contact of rocking bar 3, the angle of flap 1, when regulating, can realize Universal rotary, thus make the sealing surface adjustable extent of flap 1 be far longer than common flap, no matter how severe operating mode is, when medium flows backwards, the sealing surface of flap 1 can be fitted with the sealing surface of valve seat 2 all the time, ensures sealing; Simultaneously because the area of contact of flap shaft 5 with the cylindrical hole of rocking bar 3 diminishes, flap shaft 5 is little with the cylindrical hole relative wear of rocking bar 3, thus extends valve working life.
More than show and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. a universal regulated safety check valve flap structure, is characterized in that: comprise flap, valve seat, rocking bar, locking nut and flap shaft;
Described flap and valve seat cooperatively interact, and have the blind cylindrical hole that an appearance flap shaft embeds, have the cylindrical hole that an appearance flap shaft is passed simultaneously on rocking bar at the center of flap and the opposing side of valve seat;
Described flap shaft is through in the blind cylindrical hole embedded after the cylindrical hole on rocking bar on flap, thus flap is connected with rocking bar, and the tail end of flap shaft is locked by locking nut, described flap shaft is positioned at one section of shape spherical in shape of the cylindrical hole of rocking bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420695209.XU CN204284546U (en) | 2014-11-19 | 2014-11-19 | A kind of universal regulated safety check valve flap structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420695209.XU CN204284546U (en) | 2014-11-19 | 2014-11-19 | A kind of universal regulated safety check valve flap structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204284546U true CN204284546U (en) | 2015-04-22 |
Family
ID=52867707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420695209.XU Active CN204284546U (en) | 2014-11-19 | 2014-11-19 | A kind of universal regulated safety check valve flap structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204284546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864129A (en) * | 2015-05-08 | 2015-08-26 | 同济大学 | Swing check valve |
-
2014
- 2014-11-19 CN CN201420695209.XU patent/CN204284546U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864129A (en) * | 2015-05-08 | 2015-08-26 | 同济大学 | Swing check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |