CN213629016U - Vacuum breaker with floating ball structure - Google Patents
Vacuum breaker with floating ball structure Download PDFInfo
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- CN213629016U CN213629016U CN202022087189.6U CN202022087189U CN213629016U CN 213629016 U CN213629016 U CN 213629016U CN 202022087189 U CN202022087189 U CN 202022087189U CN 213629016 U CN213629016 U CN 213629016U
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Abstract
The application discloses a vacuum breaker with a floating ball structure, which is characterized by comprising a valve main body and an insert arranged at the upper end of the valve main body, wherein the valve main body is provided with a water inlet, a valve core channel and a water outlet which are communicated; the insert is provided with an air inlet which is communicated with a valve core channel on the valve main body; the bottom of the insert is fixedly provided with a first sealing ring, the plastic ball can upwards push the first sealing ring to realize sealing under the buoyancy action of water, and an air inlet is blocked and sealed. The utility model provides a vacuum breaker's simple structure can eliminate under the condition that vacuum formed in the pipeline, prevents that the phenomenon of siphon backward flow from taking place to the condition that prevents the water source among the branch pipe from polluting the water among the main pipe network takes place.
Description
Technical Field
The application relates to a vacuum breaker with a floating ball structure.
Background
Among the prior art, the water supply network condition is more complicated to water pressure in the pipe network is changing always, when having the condition such as the local water consumption ratio is bigger or local pipeline section evacuation to take place in the pipe network, will form the negative pressure in the pipeline, during the water suction main pipe network in the branch pipe, the water source condition in the branch pipe is unknown, can pollute the water in the main pipe network, and this kind of condition is very dangerous. Vacuum breakers can better address this problem.
When the vacuum breaker on the market is normally used, most of the vacuum breakers are provided with air inlets blocked by valve flaps; when negative pressure is formed in the pipeline, the valve clack is opened by the external atmospheric pressure, and the air inlet at the air inlet end is opened, so that external air can enter. When the flap opens, this action is similar to an impact, and therefore the service life of the product is reduced; the valve clack generally utilizes self gravity when falling, the action reliability is poor, if the action is slow slightly, the air inlet of the vacuum breaker can not be blocked in time, even water leakage can occur, even most of the air inlets of the vacuum breakers face downwards, and once water leakage is not found in time, the water leakage condition is aggravated.
Disclosure of Invention
To the above-mentioned technical problem that prior art exists, the utility model aims to provide a take vacuum breaker of floater structure, this vacuum breaker simple structure can eliminate under the condition that vacuum formed in the pipeline, prevents that the phenomenon of siphon backward flow from taking place to the condition that prevents the water source among the branch pipe from polluting the water among the main pipe network takes place.
The vacuum breaker with the floating ball structure is characterized by comprising a valve main body and an insert fixedly and hermetically mounted at the upper end of the valve main body, wherein the valve main body is provided with a water inlet, a valve core channel and a water outlet which are communicated; the insert is provided with an air inlet which is communicated with a valve core channel on the valve main body; the bottom of the insert is fixedly provided with a first sealing ring, and the first sealing ring is positioned inside the upper end of the limiting ball column and is arranged right below the air inlet;
when water normally flows through the valve main body, the plastic ball upwards pushes the sealing ring to realize sealing under the buoyancy action of the water, and the plastic ball blocks and seals the air inlet of the insert; when the water pressure is reduced due to the reduction of water flow in the valve main body, the plastic ball is separated from the first sealing ring at the bottom of the insert under the dual actions of the external atmospheric pressure and the gravity of the plastic ball, and the air inlet of the insert is opened to enable air to enter the valve main body.
The vacuum breaker with the floating ball structure is characterized in that an upper opening is formed in the upper end of the valve body, female threads are arranged on the inner wall of the upper opening of the valve body, matched male threads are arranged on the side portion of the insert, the insert is fixedly connected with the matched threads of the valve body, and the insert and the valve body are sealed through a sealing ring II, so that water leakage is prevented.
The vacuum breaker with the floating ball structure is characterized in that the bottom of the insert is provided with an insert ring part, and the insert ring part is arranged right below the air inlet; the first sealing ring is fixed on the annular bottom wall of the inserting ring part through an adhesive; the outer side of the lower port of the limiting ball column is provided with external threads, the bottom of a valve core channel of the valve main body is provided with a matched threaded groove hole, and the lower end of the limiting ball column is matched and screwed and fixed on the threaded groove hole of the valve main body; the upper port of the limiting ball column is tightly inserted outside the inserting ring part at the bottom of the insert, so that the fixed installation of the limiting ball column in the valve body is realized.
The vacuum breaker with the floating ball structure is characterized in that a plurality of vertical slotted holes which are annularly arranged are uniformly arranged on the side part of the limiting ball column at intervals so that fluid can flow into and out of the limiting ball column.
The vacuum breaker with the floating ball structure is characterized in that a hollow sleeve is arranged in an air inlet of the insert, and the side part of the hollow sleeve is fixedly connected with the inner wall of the air inlet through a plurality of support rods which are annularly arranged, so that the hollow sleeve is fixedly suspended in the air inlet; the plastic ball comprises a spherical body and a columnar extension part arranged at the top of the spherical body, the outer diameter of the columnar extension part is slightly smaller than the inner diameter of the hollow sleeve, the spherical body of the plastic ball is movably arranged in the limiting ball column, and the columnar extension part of the plastic ball is matched with the hollow sleeve to stretch into the hollow sleeve and penetrate out of the hollow sleeve.
The beneficial effect that this application was got is:
the vacuum breaker with the floating ball structure is simple in structure, can eliminate the phenomenon of siphon backflow under the condition of vacuum formation in a pipeline, and therefore prevents the water source in the branch pipe from polluting the water in the main pipe network. The vacuum breaker with the floating ball structure has an upward opening at the air inlet end, and the plastic ball is jacked up by utilizing the buoyancy of water to close the air inlet port (namely an air inlet). In the process of closing the air inlet port, the impact effect of atmospheric pressure is avoided, but the interaction result of the buoyancy of water and the gravity of the plastic ball is utilized (when the water flow is larger, the liquid level in the valve main body is higher, and the water level jacks up the plastic ball and closes the air inlet port), so that the acting time period of the vacuum breaker does not form a vacuum, but plays a role in the beginning of forming, the service life of the vacuum breaker is greatly prolonged, and the reliability is higher.
Drawings
FIG. 1 is a schematic view of the vacuum breaker of the present application;
in fig. 1: the valve comprises a 1-insert, a 1 a-air inlet, a 1 b-hollow sleeve, a 1 c-support rod, a 2-sealing ring II, a 3-valve main body, a 3 a-water outlet, a 3 b-water inlet, a 4-limiting ball column, a 5-sealing ring I and a 6-plastic ball.
Detailed Description
The present invention is further illustrated by the following examples, which should not be construed as limiting the scope of the invention.
Example (b): compare FIG. 1
A vacuum breaker with a floating ball structure comprises a valve body 3 and an insert 1 fixedly and hermetically mounted at the upper end of the valve body 3, wherein the valve body 3 is provided with a water inlet 3b, a valve core channel and a water outlet 3a which are communicated, a vertical limiting ball column 4 and a plastic ball 6 movably arranged in the limiting ball column 4 are fixedly arranged in the valve core channel, the side part of the limiting ball column 4 is provided with a hole opening channel for fluid to flow in and out, and the limiting ball column 4 is used for limiting the movement track of the plastic ball 6 so as to enable the plastic ball to float only up and down. The insert 1 is provided with an air inlet 1a, and the air inlet 1a is communicated with a valve core channel on the valve main body 3; the bottom of the insert 1 is fixedly provided with a first sealing ring 5, and the first sealing ring 5 is positioned inside the upper end of the limiting ball column 4 and is arranged right below the air inlet 1 a.
When water normally flows through the valve main body 3, the plastic ball 6 pushes the sealing ring I5 upwards under the buoyancy action of the water to realize sealing, and the plastic ball 6 blocks and seals the air inlet 1a of the insert 1; when the water pressure is reduced due to the reduction of the water flow in the valve body 3, the plastic ball 6 is separated from the first sealing ring 5 at the bottom of the insert 1 under the dual actions of the external atmospheric pressure and the gravity of the plastic ball 6, and the air inlet 1a of the insert 1 is opened to allow air to enter the valve body 3.
Referring to fig. 1, an upper opening is formed in the upper end of the valve body 3, female threads are arranged on the inner wall of the upper opening of the valve body 3, matched male threads are arranged on the side portion of the insert 1, the insert 1 is fixedly connected with the valve body 3 in a matched threaded mode, and the insert 1 and the valve body 3 are sealed through a sealing ring 2, so that water leakage is prevented, and the water leakage is static sealing.
Referring to fig. 1, the bottom of the insert 1 is provided with an insert ring part which is arranged right below the air inlet 1 a; the first sealing ring 5 is fixed on the annular bottom wall of the inserting ring part through an adhesive; the outer side of the lower port of the limiting ball column 4 is provided with external threads, the bottom of a valve core channel of the valve main body 3 is provided with a matched threaded groove hole, and the lower end of the limiting ball column 4 is matched and screwed and fixed on the threaded groove hole of the valve main body 3; the upper port of the limiting ball column 4 is tightly inserted outside the inserting ring part at the bottom of the insert 1, so that the fixed installation of the limiting ball column 4 in the valve main body 3 is realized.
Wherein, the plastic ball 6 is a moving part, so a sealing ring I5 needs to be fixed at the bottom of the insert 1, and when the sealing ring I5 is matched with the plastic ball to be in close contact with the plastic ball, the requirement on sealing performance can be met.
The side part of the limit ball post 4 is evenly provided with a plurality of vertical slotted holes which are arranged in an annular shape at intervals so that fluid can flow into and out of the limit ball post 4. The vertical slotted holes form a hole opening channel of the limiting ball column 4.
Referring to fig. 1, a hollow sleeve 1b is arranged in the air inlet 1a of the insert 1, and the side of the hollow sleeve 1b is fixedly connected with the inner wall of the air inlet 1a through a plurality of annularly arranged support rods 1c, so that the hollow sleeve 1b is fixedly suspended in the air inlet 1 a. The plastic ball 6 comprises a spherical body and a columnar extension part arranged at the top of the spherical body, the outer diameter of the columnar extension part is slightly smaller than the inner diameter of the hollow sleeve 1b, the spherical body of the plastic ball 6 is movably arranged in the limiting ball column 4, and the columnar extension part of the plastic ball 6 is matched with the hollow sleeve 1b to stretch into the hollow sleeve 1b and penetrate out of the hollow sleeve 1 b. Therefore, the movable range of the plastic ball is further limited, so that the plastic ball can only float up and down, and the reliability is improved.
In the vacuum breaker structure of the present application, the inlet port faces upward. When water is introduced into the valve main body, the plastic ball can slowly rise under the buoyancy effect of the rising of the water level, and before the water level is full of the inner space of the whole valve main body, the plastic ball can rise to jack the sealing ring to plug and seal the air inlet port together, namely the plastic ball can rise to close the air inlet port before the liquid level rises, so that the valve main body has better reliability. In the working process, the action time of the plastic ball is early and long, the interaction is relatively small and slow, and the plastic ball is beneficial to the long service life of a product.
The vacuum breaker of this application is at work:
1. when water flow normally passes through the main pipe network and the water pressure is normal, the plastic ball pushes up due to buoyancy, and the air inlet port is closed;
2. when the pressure in the main pipe network is reduced, the water flow is reduced, the plastic ball is reduced along with the reduction of the water surface under the action of atmospheric pressure and gravity, the air inlet port is opened, air can enter, and the pressure in the main pipe network cannot be reduced to a siphon condition. And the pressure in the pipe can be balanced in time, and the condition of low pressure can not occur.
The statements in this specification merely set forth a list of implementations of the inventive concept and the scope of the present invention should not be construed as limited to the particular forms set forth in the examples.
Claims (5)
1. A vacuum breaker with a floating ball structure is characterized by comprising a valve main body (3) and an insert (1) fixedly and hermetically mounted at the upper end of the valve main body (3), wherein the valve main body (3) is provided with a water inlet (3 b), a valve core channel and a water outlet (3 a) which are communicated with each other, a vertical limiting ball column (4) and a plastic ball (6) movably arranged in the limiting ball column (4) are fixedly arranged in the valve core channel, the side part of the limiting ball column (4) is provided with a hole opening channel for fluid to flow in and out, and the limiting ball column (4) is used for limiting the plastic ball (6) in the limiting ball column to float up and down;
the insert (1) is provided with an air inlet (1 a), and the air inlet (1 a) is communicated with a valve core channel on the valve main body (3); a first sealing ring (5) is fixedly arranged at the bottom of the insert (1), and the first sealing ring (5) is positioned inside the upper end of the limiting ball column (4) and is arranged right below the air inlet (1 a);
when water normally flows through the valve main body (3), the plastic ball (6) upwards pushes the sealing ring I (5) to realize sealing under the buoyancy action of the water, and the plastic ball (6) blocks and seals the air inlet (1 a) of the insert (1); when the water pressure is reduced due to the reduction of water flow in the valve main body (3), the plastic ball (6) is separated from the sealing ring I (5) at the bottom of the insert (1) under the dual actions of the external atmospheric pressure and the gravity of the plastic ball (6), and the air inlet (1 a) of the insert (1) is opened to enable air to enter the valve main body (3).
2. The vacuum breaker with the floating ball structure as claimed in claim 1, wherein the upper end of the valve body (3) is provided with an upper opening, the inner wall of the upper opening of the valve body (3) is provided with female threads, the side portion of the insert (1) is provided with matching male threads, the insert (1) is fixedly connected with the valve body (3) through matching threads, and the insert (1) and the valve body (3) are sealed by arranging a second sealing ring (2) to prevent water from leaking.
3. The vacuum breaker with the floating ball structure as claimed in claim 1, wherein the bottom of the insert (1) is provided with a collar portion which is arranged right below the air inlet (1 a); the first sealing ring (5) is fixed on the annular bottom wall of the inserting ring part through an adhesive;
the outer side of the lower port of the limiting ball column (4) is provided with external threads, the bottom of a valve core channel of the valve main body (3) is provided with a matched threaded groove hole, and the lower end of the limiting ball column (4) is matched and screwed and fixed on the threaded groove hole of the valve main body (3); the upper port of the limiting ball column (4) is tightly inserted outside the inserting ring part at the bottom of the insert (1), so that the fixed installation of the limiting ball column (4) in the valve main body (3) is realized.
4. The vacuum breaker with floating ball structure as claimed in claim 1, characterized in that the side of said limit ball post (4) is provided with a plurality of vertical slotted holes arranged in a ring shape at regular intervals to facilitate the fluid to flow into and out of the limit ball post (4).
5. The vacuum breaker with the floating ball structure as claimed in claim 1, wherein the air inlet (1 a) of the insert (1) is internally provided with a hollow sleeve (1 b), the side of the hollow sleeve (1 b) is fixedly connected with the inner wall of the air inlet (1 a) through a plurality of struts arranged in a ring shape, so that the hollow sleeve (1 b) is fixedly suspended in the air inlet (1 a);
the plastic ball (6) comprises a spherical body and a columnar extension part arranged at the top of the spherical body, the outer diameter of the columnar extension part is slightly smaller than the inner diameter of the hollow sleeve (1 b), the spherical body of the plastic ball (6) is movably arranged in the limiting ball column (4), and the columnar extension part of the plastic ball (6) is matched with the hollow sleeve (1 b) to stretch into the hollow sleeve (1 b) and penetrate out of the hollow sleeve (1 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022087189.6U CN213629016U (en) | 2020-09-22 | 2020-09-22 | Vacuum breaker with floating ball structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022087189.6U CN213629016U (en) | 2020-09-22 | 2020-09-22 | Vacuum breaker with floating ball structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213629016U true CN213629016U (en) | 2021-07-06 |
Family
ID=76652566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022087189.6U Active CN213629016U (en) | 2020-09-22 | 2020-09-22 | Vacuum breaker with floating ball structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213629016U (en) |
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2020
- 2020-09-22 CN CN202022087189.6U patent/CN213629016U/en active Active
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