CN215908475U - Novel vacuum breaker valve - Google Patents
Novel vacuum breaker valve Download PDFInfo
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- CN215908475U CN215908475U CN202122280709.XU CN202122280709U CN215908475U CN 215908475 U CN215908475 U CN 215908475U CN 202122280709 U CN202122280709 U CN 202122280709U CN 215908475 U CN215908475 U CN 215908475U
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- seat
- valve body
- novel vacuum
- vacuum break
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Abstract
The utility model relates to a novel vacuum breaker valve, which comprises a valve body with a cylindrical inner cavity, wherein an air inlet is formed in the side wall of the valve body, a valve cover is detachably arranged on the upper side of the valve body, a valve seat is arranged in the valve body, an air passing cavity with an upward opening is formed in the valve seat, a connecting seat used for connecting the valve seat is arranged between the valve body and the valve seat, an air passing channel used for communicating the air passing cavity with the air inlet is formed in the connecting seat, a valve plate used for separating the cylindrical inner cavity from the air passing cavity is arranged on the upper side of the valve seat in the valve body in a lifting mode, an elastic part is arranged between the valve plate and the valve cover, and a valve rod is arranged on the upper side of the valve plate.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a novel vacuum breaker valve.
Background
The vacuum break valve is a safety valve. The valve is mainly used in a container or a pipeline, when the pipeline or the container generates negative pressure or vacuum gradually rises due to the running or stopping of a system, the valve can be automatically opened to destroy the vacuum effect, so that the pipeline and other equipment cannot be shriveled or dented, and the safety of the equipment is protected. When the system generates negative pressure, the pressure difference between the atmospheric pressure and the system pressure acts on the sealing element to push the vacuum breaker valve sealing element, the sealing surface is opened to introduce the external atmosphere into the system, the system pressure is increased to break the negative pressure until the vacuum breaker valve sealing element falls down again for sealing, and the external atmosphere does not enter the system. The vacuum valve on the market at present is mainly a metal valve and has the following defects: the reaction is insensitive and cannot be opened under small vacuum pressure; the air channel is small, and the anti-vacuum efficiency is poor; impurities are easy to enter during the vacuum negative pressure action.
SUMMERY OF THE UTILITY MODEL
Therefore, in view of the above problems, the present invention provides a novel vacuum break valve.
In order to achieve the technical problem, the utility model adopts the technical scheme that the novel vacuum breaker valve comprises a valve body with a cylindrical inner cavity, an air inlet is formed in the side wall of the valve body, a valve cover is detachably arranged on the upper side of the valve body, a valve seat is arranged in the valve body, an air passing cavity with an upward opening is formed in the valve seat, a connecting seat used for connecting the valve seat is arranged between the valve body and the valve seat, an air passing channel used for communicating the air passing cavity and the air inlet is formed in the connecting seat, a valve plate used for separating the cylindrical inner cavity and the air passing cavity is arranged on the upper side of the valve seat in the valve body in a lifting mode, an elastic part is arranged between the valve plate and the valve cover, and a valve rod is arranged on the upper side of the valve plate.
The further improvement is that: the valve body is a cylindrical valve body, and the valve seat is a cylindrical valve seat which is coaxial with the cylindrical valve body.
The further improvement is that: the valve seat, the connecting seat and the valve body are integrally formed.
The further improvement is that: the lower end of the valve cover is provided with a sliding guide pipe for sliding the upper end of the valve rod.
The further improvement is that: the elastic piece is a compression spring, and two ends of the compression spring respectively abut against the lower end face of the valve cover and the upper end face of the valve plate.
The further improvement is that: the valve plate is characterized in that a first positioning groove used for positioning the compression spring is formed in the lower end face of the valve cover, and a second positioning groove used for positioning the compression spring is formed in the upper end face of the valve plate.
The further improvement is that: the valve cover is provided with internal threads, and the upper end of the valve body is provided with external threads matched with the valve cover.
The further improvement is that: and the lower end of the valve body is provided with a connecting thread connected with an external pipe fitting.
The further improvement is that: the valve plate is provided with a mounting groove, and a sealing piece used for sealing the valve seat is detachably arranged in the mounting groove.
The further improvement is that: and a filter screen for filtering sundries in the air is arranged at the air inlet.
By adopting the technical scheme, the utility model has the beneficial effects that: the air inlet on the side wall is communicated with the air passing cavity of the valve seat, the cylindrical inner cavity and the air passing cavity are separated by the valve plate, and when negative pressure is generated in the valve body, gas in air contained in the air passing cavity can push the valve plate to enter the cylindrical inner cavity, so that the pressure in the valve body is increased to destroy the negative pressure.
The further effects are as follows: cylindrical valve body and disk seat, convenient manufacturing, reduce cost.
The further effects are as follows: the sliding guide pipe is arranged, so that the valve plate can be prevented from deviating when ascending and descending, and the valve seat can be prevented from being accurately sealed when being reset.
The further effects are as follows: the filter screen is arranged, so that sundries in the air can be prevented from entering the valve body.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of the present invention;
FIG. 3 is a schematic structural view of a valve body according to an embodiment of the present invention;
FIG. 4 is a top view of a valve body according to an embodiment of the present invention;
FIG. 5 is a schematic view of a valve body structure in an embodiment of the utility model;
FIG. 6 is a schematic illustration of a valve cover construction according to an embodiment of the present invention;
FIG. 7 is a schematic view of a valve plate according to an embodiment of the present invention.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings and specific embodiments.
Example (c);
referring to fig. 1 to 7, a novel vacuum break valve, including valve body 2 that has cylindrical inner chamber 1, air inlet 3 has been seted up to valve body 2 lateral wall, valve body 2 upside can be dismantled and be provided with valve gap 4, be provided with disk seat 5 in the valve body 2, disk seat 5 has seted up the ascending air cavity 6 of crossing of opening, be provided with the connecting seat 7 that is used for connecting disk seat 5 between valve body 2 and the disk seat 5, set up on the connecting seat 7 and be used for even crossing the gas passageway 8 of crossing through air cavity 6 and air inlet 3, it is provided with the valve plate 9 that is used for cutting off cylindrical inner chamber 1 and crossing air cavity 6 to lie in the valve seat 5 upside liftable in the valve body 2, be provided with elastic component (not shown in the figure) between valve plate 9 and the valve gap 4, valve plate 9 upside is provided with valve rod 10.
In this embodiment, the valve body 2 is a cylindrical valve body 2, and the valve seat 5 is a cylindrical valve seat 5 which is coaxial with the cylindrical valve body 2, wherein the valve seat 5, the connecting seat 7 and the valve body 2 are integrally formed, one end of the connecting seat 7 is connected with the inner side wall of the valve body 2, and one end of the connecting seat 5 is connected with the valve seat 5.
In order to prevent the valve plate 9 from shifting when ascending and descending to cause the valve plate to be reset inaccurately, the lower end of the valve cover 4 is provided with a sliding guide pipe 11 for sliding the upper end of the valve rod 10, when the upper end part of the valve rod 10 can slide up and down in the sliding guide pipe 11, the side wall of the sliding guide pipe 11 limits the valve rod 10 to shift, and then the valve plate 9 is prevented from shifting.
Meanwhile, in this embodiment, the elastic member is a compression spring, two ends of the compression spring respectively abut against the lower end face of the valve cover 4 and the upper end face of the valve plate 9, wherein the lower end face of the valve cover 4 is provided with a first positioning groove 12 for positioning the compression spring, the upper end of the compression spring is located in the first positioning groove 12, the upper end of the compression spring can be prevented from offsetting during compression, the upper end face of the valve plate 9 is provided with a second positioning groove 13 for positioning the compression spring, and the lower end of the compression spring is located in the second positioning groove 13, so that the lower end of the compression spring can be prevented from offsetting during compression.
In order to maintain conveniently, the valve cover 4 is provided with an internal thread, the upper end of the valve body 2 is provided with an external thread matched with the valve cover 4, and when the valve cover 4 needs to be maintained, the valve cover 4 can be detached to maintain the internal structure of the valve body 2 only by rotating the valve cover 4.
In order to connect an external pipe, the lower end of the valve body 2 is provided with a connecting thread connected with the external pipe, and the pipe needing to be provided with the vacuum breaker valve can be connected through threaded connection, so that the connection is convenient.
In order to prevent leakage in the valve body 2, the valve plate 9 is provided with a mounting groove 14, the mounting groove 14 is internally provided with a sealing ring for sealing the valve seat 5 in a detachable manner, and when the valve plate 9 is driven by the compression spring to downwards abut against the valve seat 5, the sealing ring is matched with the valve seat 5, so that leakage of fluid medium in the valve body 2 can be prevented.
A filter screen 15 for filtering sundries in the air is arranged at the air inlet 3, so that the sundries in the air can be prevented from entering the valve body 2.
The working principle is as follows:
the gas in the air can flow into the gas passing channel 8 through the gas inlet 3, and then flows to the gas passing cavity 6 through the gas passing channel 8, the valve body 2 is connected into an external pipeline through threads, the cylindrical inner cavity 1 of the valve body 2 is communicated with the external pipeline, when the valve plate 9 is normally used (under the condition of positive pressure), the valve plate is matched with the valve seat 5 under the action of the compression spring to separate and seal the cylindrical inner cavity 1 and the gas passing cavity 6, the larger the pipeline pressure is, the tighter the sealing is, and at the moment, the gas in the gas passing cavity 6 can not enter the cylindrical inner cavity 1; when negative pressure is generated in the pipeline, under the action of the pressure difference between atmospheric pressure and the pressure difference in the pipe fitting, the gas in the gas passing cavity 6 drives the valve plate 9 to ascend and further flow into the cylindrical inner cavity 1 of the valve body 2, so that the pressure in the pipeline rises to destroy the negative pressure, the valve plate 9 in the valve body 2 resets the sealing valve seat 5 under the action of gravity and a compression spring again, the external gas does not enter the pipeline, and the fluid medium in the valve body 2 cannot leak.
The above description is only an embodiment utilizing the technical content of the present disclosure, and any modification and variation made by those skilled in the art can be covered by the claims of the present disclosure, and not limited to the embodiments disclosed.
Claims (10)
1. The utility model provides a novel vacuum break valve, is including the valve body that has cylindrical inner chamber, the air inlet has been seted up to the valve body lateral wall, the valve body upside can be dismantled and be provided with the valve gap, be provided with disk seat, its characterized in that in the valve body: the valve comprises a valve seat, a valve body and a valve cover, wherein the valve seat is provided with an air passing cavity with an upward opening, a connecting seat used for connecting the valve seat is arranged between the valve body and the valve seat, an air passing channel used for communicating the air passing cavity with an air inlet is arranged on the connecting seat, the upper side of the valve body, which is positioned in the valve seat, is provided with a valve plate used for separating the cylindrical inner cavity from the air passing cavity in a lifting manner, an elastic part is arranged between the valve plate and the valve cover, and a valve rod is arranged on the upper side of the valve plate.
2. The novel vacuum break valve as claimed in claim 1, wherein: the valve body is a cylindrical valve body, and the valve seat is a cylindrical valve seat which is coaxial with the cylindrical valve body.
3. The novel vacuum break valve as claimed in claim 1, wherein: the valve seat, the connecting seat and the valve body are integrally formed.
4. The novel vacuum break valve as claimed in claim 1, wherein: the lower end of the valve cover is provided with a sliding guide pipe for sliding the upper end of the valve rod.
5. The novel vacuum break valve as claimed in claim 4, wherein: the elastic piece is a compression spring, and two ends of the compression spring respectively abut against the lower end face of the valve cover and the upper end face of the valve plate.
6. The novel vacuum break valve as claimed in claim 5, wherein: the valve plate is characterized in that a first positioning groove used for positioning the compression spring is formed in the lower end face of the valve cover, and a second positioning groove used for positioning the compression spring is formed in the upper end face of the valve plate.
7. The novel vacuum break valve as claimed in claim 1, wherein: the valve cover is provided with internal threads, and the upper end of the valve body is provided with external threads matched with the valve cover.
8. The novel vacuum break valve as claimed in claim 1, wherein: and the lower end of the valve body is provided with a connecting thread connected with an external pipe fitting.
9. The novel vacuum break valve as claimed in claim 1, wherein: the valve plate is provided with a mounting groove, and a sealing piece used for sealing the valve seat is detachably arranged in the mounting groove.
10. The novel vacuum break valve as claimed in claim 1, wherein: and a filter screen for filtering sundries in the air is arranged at the air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122280709.XU CN215908475U (en) | 2021-09-18 | 2021-09-18 | Novel vacuum breaker valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122280709.XU CN215908475U (en) | 2021-09-18 | 2021-09-18 | Novel vacuum breaker valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215908475U true CN215908475U (en) | 2022-02-25 |
Family
ID=80310042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122280709.XU Active CN215908475U (en) | 2021-09-18 | 2021-09-18 | Novel vacuum breaker valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215908475U (en) |
-
2021
- 2021-09-18 CN CN202122280709.XU patent/CN215908475U/en active Active
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