CN217234533U - Pipe top type vacuum breaking valve - Google Patents
Pipe top type vacuum breaking valve Download PDFInfo
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- CN217234533U CN217234533U CN202220874873.5U CN202220874873U CN217234533U CN 217234533 U CN217234533 U CN 217234533U CN 202220874873 U CN202220874873 U CN 202220874873U CN 217234533 U CN217234533 U CN 217234533U
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Abstract
The utility model relates to the technical field of valving, pipe top type vacuum break valve, which comprises a valve body, valve body top threaded connection has the valve cap, and is provided with the disk seat boss on the valve body top, the valve cap corresponds the position and opens the shrinkage pool that has the disk seat boss of valve body mutually supported, be provided with the spring between the disk seat boss of valve body and the valve cap shrinkage pool, and spring fixed connection in the spring guide sleeve, spring bottom fixedly connected with hose insert, the laminating of hose insert bottom and valve body top, open spring guide sleeve both sides has the side opening, the utility model discloses simple structure sets up rationally, has the practicality.
Description
Technical Field
The utility model relates to a valve gear technical field specifically is tube-top type vacuum breaker valve.
Background
The vacuum breaker valve is widely applied to various systems which are easy to generate vacuum, such as fire fighting, swimming pools, green area sprinkling irrigation, water supply and drainage, docks, power plants, metallurgy, shipbuilding and other fields, the air protection system is timely sucked when the system forms negative pressure, and when the negative pressure or the vacuum is gradually increased due to the running or stopping of the system, the vacuum breaker valve can be automatically opened to break the vacuum effect, so that the pipeline and other equipment cannot be shriveled or dented, and the like, thereby protecting the safety of the equipment.
When the atmospheric pressure is unbalanced outside in pipeline or the closed container, form the negative pressure in the closed container, appear "inhaling flat" easily and produce siphon, refluence, water hammer phenomenon promptly, current pipe top type vacuum break valve, the case position is below the disk seat, and the case material is the stainless steel ball, but this kind of structure uses pressure spring to guarantee opening and closing of vacuum break valve, and the spring makes the spring inefficacy easily as main pressure-bearing part, long-term use or high temperature under, causes to reveal.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pipe top type vacuum break valve to solve the problem that proposes among the above-mentioned background art.
For realizing above-mentioned purpose, pipe top type vacuum break valve, comprising a valve body, valve body top threaded connection has the valve cap, and is provided with the disk seat boss on the valve body top, the valve cap corresponds the position and opens the shrinkage pool that has the disk seat boss of valve body mutually supported, be provided with the spring between the disk seat boss of valve body and the valve cap shrinkage pool, and spring fixed connection in the spring guide cover, spring bottom fixedly connected with soft case, the laminating of soft case bottom and valve body top, open spring guide cover both sides has the side opening.
Preferably: the soft valve core is made of rubber plates.
Preferably: the bottom end of the valve body is provided with a threaded hole, the top end of the threaded hole is provided with a liquid seepage hole, and the liquid seepage hole is communicated with the side hole.
Preferably: and an air inlet hole is formed in one side of the valve body.
Preferably: one end of the air inlet hole is connected with one end of the soft valve core.
Preferably: and gaskets are symmetrically arranged at the joints of the valve body and the two sides of the valve cap.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a soft valve core is above the valve body, exert the power of supplementary closing through the spring, accord with national standard's design requirement, the spring is as non-main pressure-bearing part simultaneously, there is not the risk that the spring became invalid and reveals, the screw hole of valve body bottom is connected with pipeline or closed container, medium pressure in pipeline or the closed container passes through the side opening of the weeping hole of valve body and spring guide pin bushing and transmits to soft valve core top, make the valve seat boss of soft valve core and valve body keep sealing, the air inlet of valve body communicates with external atmosphere, transmit external atmosphere to soft valve core, when the top pressure of soft valve core is greater than external atmospheric pressure, the vacuum breaks the valve and closes, when the top pressure of soft valve core is less than external atmospheric pressure, the vacuum valve opens, inhale external air, abolish the negative pressure state in pipeline or the closed container, the utility model discloses simple structure, it is reasonable to set up, has practicability.
Drawings
Fig. 1 is a schematic diagram of the internal structure of the tube top type vacuum break valve according to the present invention.
In the figure:
1. a valve body; 2. a spring guide sleeve; 3. a soft valve core; 4. a gasket; 5. a bonnet; 6. a spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Examples
Please refer to fig. 1, the drawing is the utility model discloses a preferred embodiment, pipe top type vacuum break valve, including valve body 1, 1 top end threaded connection of valve body has valve cap 5, and 1 top of valve body is provided with the disk seat boss, valve cap 5 corresponds the position and opens the shrinkage pool that has the disk seat boss of mutually supporting with valve body 1, is provided with spring 6 between the disk seat boss of valve body 1 and the 5 shrinkage pools of valve cap, and spring 6 fixed connection is in spring guide pin bushing 2, 6 bottom fixed connection of spring have soft case 3, 3 bottoms of soft case and the laminating of 1 top of valve body, open 2 both sides of spring guide pin bushing and have the side opening.
The soft valve core 3 is made of rubber plate material.
It can be understood that: the soft valve core 3 is made of rubber plate materials, so that the air tightness of the device is guaranteed, and the design requirements of national standards are met.
The bottom end of the valve body 1 is provided with a threaded hole, the top end of the threaded hole is provided with a liquid seepage hole, and the liquid seepage hole is communicated with the side hole.
It can be understood that: the threaded hole at the bottom end of the valve body 1 is connected with a pipeline or a closed container, and the medium pressure in the pipeline or the closed container is transmitted to the top end of the soft valve core 3 through the liquid seepage hole of the valve body 1 and the side hole of the spring guide sleeve 2, so that the soft valve core 3 and the valve seat boss of the valve body 1 are kept closed.
One side of the valve body 1 is provided with an air inlet hole.
It can be understood that: the air inlet hole of the valve body 1 is communicated with the outside atmosphere to transmit the outside atmosphere to the soft valve core 3, when the medium pressure in the top pressure pipeline or the closed container of the soft valve core 3 is higher than the outside atmosphere pressure, the vacuum breaking valve is closed, when the medium pressure in the top pressure pipeline or the closed container of the soft valve core 3 is lower than the outside atmosphere pressure, negative pressure is generated in the pipeline or the closed container, the vacuum breaking valve is opened to suck the outside air, and the negative pressure state in the pipeline or the closed container is broken.
One end of the air inlet hole is connected with one end of the soft valve core 3.
It can be understood that: air can enter the valve body 1 from one end of the air inlet hole and forms pressure difference with two sides of the soft valve core 3.
The utility model discloses a workflow and theory of operation: the threaded hole at the bottom end of the valve body 1 is connected with a pipeline or a closed container, medium pressure in the pipeline or the closed container is transmitted to the top end of the soft valve core 3 through a liquid seepage hole of the valve body 1 and a side hole of the spring guide sleeve 2, so that the soft valve core 3 and a valve seat boss of the valve body 1 are kept closed, an air inlet hole of the valve body 1 is communicated with the outside atmosphere, the outside atmosphere is transmitted to the soft valve core 3, when the medium pressure in a top pressure pipeline or the closed container of the soft valve core 3 is higher than the outside atmosphere pressure, the vacuum breaking valve is closed, when the medium pressure in the top pressure pipeline or the closed container of the soft valve core 3 is lower than the outside atmosphere pressure, negative pressure is generated in the pipeline or the closed container, the vacuum breaking valve is opened, outside air is sucked, and the negative pressure state in the pipeline or the closed container is broken.
The above description is provided for further details of the present invention, and it should not be assumed that the present invention is limited to these descriptions, and it will be appreciated by those skilled in the art that various modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. Tube top type vacuum break valve, including valve body (1), its characterized in that:
valve body (1) top threaded connection has valve cap (5), and valve body (1) top is provided with the disk seat boss, valve cap (5) correspond the position and open the shrinkage pool that has the disk seat boss of valve body (1) to mutually support, be provided with spring (6) between disk seat boss and valve cap (5) shrinkage pool of valve body (1), and spring (6) fixed connection in spring guide pin bushing (2), spring (6) bottom fixedly connected with soft case (3), laminating on soft case (3) bottom and valve body (1) top, open spring guide pin bushing (2) both sides has the side opening.
2. The tube-top vacuum break valve according to claim 1, wherein: the soft valve core (3) is made of rubber plate materials.
3. The tube-top vacuum break valve according to claim 1, wherein: the bottom end of the valve body (1) is provided with a threaded hole, the top end of the threaded hole is provided with a liquid seepage hole, and the liquid seepage hole is communicated with the side hole.
4. The tube-top vacuum break valve of claim 1, wherein: an air inlet hole is formed in one side of the valve body (1).
5. The tube-top vacuum break valve of claim 4, wherein: one end of the air inlet hole is connected with one end of the soft valve core (3).
6. The tube-top vacuum break valve according to claim 1, wherein: the valve body (1) and the connection part of the two sides of the valve cap (5) are symmetrically provided with gaskets (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220874873.5U CN217234533U (en) | 2022-04-16 | 2022-04-16 | Pipe top type vacuum breaking valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220874873.5U CN217234533U (en) | 2022-04-16 | 2022-04-16 | Pipe top type vacuum breaking valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217234533U true CN217234533U (en) | 2022-08-19 |
Family
ID=82819227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220874873.5U Active CN217234533U (en) | 2022-04-16 | 2022-04-16 | Pipe top type vacuum breaking valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217234533U (en) |
-
2022
- 2022-04-16 CN CN202220874873.5U patent/CN217234533U/en active Active
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