CN203082297U - Vacuum breaker valve - Google Patents
Vacuum breaker valve Download PDFInfo
- Publication number
- CN203082297U CN203082297U CN 201220705013 CN201220705013U CN203082297U CN 203082297 U CN203082297 U CN 203082297U CN 201220705013 CN201220705013 CN 201220705013 CN 201220705013 U CN201220705013 U CN 201220705013U CN 203082297 U CN203082297 U CN 203082297U
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- China
- Prior art keywords
- valve
- flap
- valve body
- arm
- vacuum breaker
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- Expired - Lifetime
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Abstract
The utility model discloses a vacuum breaker valve which comprises a valve body. An air inlet is formed at the upper end of the valve body, an air outlet is formed at the lower end of the valve body, a valve seat and a valve clack which are mutually matched are installed inside the valve body, the valve clack is connected with the valve body through a valve clack arm, the valve body is connected with a heavy punch through a connecting arm, the valve clack arm and the connecting arm share the same supporting point, and the supporting point is arranged on the valve body. The vacuum breaker valve is simple in structure, reasonable in design and capable of fast opening the valve seat and inflating a system when the system is in a vacuum state.
Description
Technical field
The utility model relates to the valve seat field, refers to it is a kind of vacuum breaker valve that is applicable to protection clear water, sewage and former water system device security particularly.
Background technique
Existing vacuum breaker valve is divided into pneumatic-typed, electrodynamic type and mechanical type three major types, the pneumatic-typed vacuum breaker valve is owing to need special source of the gas and DC equipment progressively to eliminate, the electrodynamic type vacuum breaker valve is because need be with water pump energising and outage, in case the power failure of non-accident occurs, this valve just can be opened automatically at once, destroys siphon, block current, prevent that flow backwards from can produce the incident that the main frame impeller flies upward, owing to also be provided with the device of manually driving valve, closing valve, manual operation is convenient, safety coefficient is big.But because in case this valve power consumption and its circuit break down is total failure, so also do not obtain the approval in market fully.
Common suction air valve also has to open toward system when forming vacuum in system and adds airway dysfunction, but it is often under system's positive pressure, and Guan Yueyan causes valve opening force to increase more.When system forms vacuum, can not open rapidly, cause system to damage because of vacuum pressure.
Therefore, need to improve, design a kind ofly when system's formation vacuum, can open the vacuum breaker valve of valve seat rapidly to system's aerating to prior art.
The model utility content
The purpose of this utility model is exactly the deficiency that will solve the above-mentioned background technology, provide a kind of protect clear water, sewage and former water system device security and can stable operation vacuum breaker valve.
The technical solution of the utility model is: a kind of vacuum breaker valve, comprise valve body, described valve body upper end is provided with suction port, valve body lower end is provided with the air outlet, be equiped with cooperatively interact valve seat and flap in valve body, it is characterized in that: described flap is connected with valve body by the flap arm, and described valve body is connected with weight by link arm, described flap arm and link arm have common fulcrum, and described fulcrum is arranged on the valve body.
Be preferably, described flap is fixedlyed connected with the valve shaft on being arranged on valve body by the flap arm, and described valve shaft is rotatably connected with valve body, and valve shaft is fixedlyed connected with weight by link arm.
Be preferably, described flap is rotatably connected with valve shaft on being arranged on valve body by the flap arm, and described flap arm is fixedlyed connected with weight by link arm.
The utility model under normal circumstances, the internal pressure effect of the gravity torque of weight and valve body is greater than the effect of flap gravity, flap keeps closed condition on valve seat; But also have self-sealing function, and promptly valve inner pressure is big more, and closing of flap is tight more.
When system's termination of pumping or emergency episode when having a power failure, the current in the pipeline in the pipeline corner position, form negative line pressure in self kinetic energy, potential energy and pipeline elevation effect current downflow because of flow velocity is uneven.When the pressure in pipeline or the valve inner is reduced to certain when a bit, atmospheric pressure on the flap can have been broken the equalising torque on the lever, and then flap is understood Unscrew, and atmosphere enters valve inner by the suction port of valve body thereupon, remedy vacuum, avoid the infringement of vacuum pressure to guarantee system.After the valve inner pressure recovery was normal, flap under the action of gravity of weight, was closed again automatically.
The utility model is simple in structure, and is reasonable in design, is a kind of when forming vacuum in system, can open the vacuum breaker valve of valve seat to system's aerating rapidly.
Description of drawings
Fig. 1 is the utility model overall structure schematic representation.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments, be convenient to be well understood to the present invention, but they do not constitute qualification to the present invention.
A kind of vacuum breaker valve as shown in Figure 1, it comprises valve body 1, valve body 1 upper end is provided with suction port, valve body 1 lower end is provided with the air outlet, in valve body 1, be equiped with cooperatively interact valve seat 5 and flap 2, flap 2 is rotatably connected with valve shaft 6 on being arranged on valve body 1 by flap arm 3, flap arm 3 is fixedlyed connected with weight 7 by link arm 8, be specially: flap arm 3 one ends are fixedlyed connected with flap 2 by first screw 9, flap arm 3 the other ends are provided with connecting ring 10, connecting ring 10 is set in the periphery of valve shaft 6, and connecting ring 10 is rotatably connected with valve shaft 6, and the cylindrical of connecting ring 10 is fixedlyed connected with link arm 8.
In the present embodiment, described flap arm 3 is first lever arm, and link arm 8 is second lever arm, and valve shaft 6 is for being arranged on the fulcrum on the valve body 1.
Under normal circumstances, the internal pressure effect of the gravity torque of weight 7 and valve body 1 is greater than the effect of flap 2 gravity, and flap 2 keeps closed condition on valve seat 5; And it also has self-sealing function, and promptly valve body 1 internal pressure is big more, and closing of flap 2 is tight more.When system's termination of pumping or emergency episode when having a power failure, the current in the pipeline in the pipeline corner position, form negative line pressure in self kinetic energy, potential energy and pipeline elevation effect current downflow because of flow velocity is uneven.When the pressure in pipeline or valve body 1 inside is reduced to certain when a bit, atmospheric pressure on the flap 2 can have been broken the equalising torque on the valve shaft 6, flap 2 can break away from valve seat 5, and valve seat 5 is opened, and atmosphere enters valve body 1 inside thereupon, remedy vacuum, to guarantee that system avoids the infringement of vacuum pressure, when making up when occurring in the valve body 1 stopping, the air that enters in the valve body 1 can play buffer function, reduce the impact force of making water hammer up, the water attack that mitigation system is potential.After valve body 1 internal pressure was recovered normally, flap 2 under the action of gravity of weight 7, was closed again automatically.
In the present embodiment, be provided with sealed groove 11 on flap 2, sealed groove 11 is provided with the seal ring 4 that is complementary with sealed groove 11 in the sealed groove 11 between valve seat 5 and flap 2, seal ring 4 upper ends are provided with limiting board 12, and limiting board 12 is fixedlyed connected with flap 2 by second screw 13.The setting of seal ring 4 can guarantee the sealability of valve.
The above only is preferred embodiment of the present utility model, is not the utility model structure is done any pro forma restriction.Every foundation technical spirit of the present utility model is to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of the technical solution of the utility model, for example can offer through hole at connecting ring 10, link arm 8 passes through hole fixedlys connected with valve shaft 6 etc.
Claims (6)
1. vacuum breaker valve, comprise valve body (1), described valve body (1) upper end is provided with suction port, valve body (1) lower end is provided with the air outlet, in valve body (1), be equiped with valve seat that cooperatively interacts (5) and flap (2), it is characterized in that: described flap (2) is connected with valve body (1) by flap arm (3), described valve body (1) is connected with weight (7) by link arm (8), described flap arm (3) and link arm (8) have common fulcrum, and described fulcrum is arranged on the valve body (1).
2. vacuum breaker valve according to claim 1, it is characterized in that: described flap (2) is fixedlyed connected with the valve shaft (6) on being arranged on valve body (1) by flap arm (3), described valve shaft (6) is rotatably connected with valve body (1), and valve shaft (6) is fixedlyed connected with weight (7) by link arm (8).
3. vacuum breaker valve according to claim 1, it is characterized in that: described flap (2) is rotatably connected with valve shaft (6) on being arranged on valve body (1) by flap arm (3), and described flap arm (3) is fixedlyed connected with weight (7) by link arm (8).
4. vacuum breaker valve according to claim 3, it is characterized in that: described flap arm (3) one ends are fixedlyed connected with flap (2) by first screw (9), flap arm (3) the other end is provided with connecting ring (10), described connecting ring (10) is set in the periphery of valve shaft (6), and connecting ring (10) is rotatably connected with valve shaft (6).
5. vacuum breaker valve according to claim 4 is characterized in that: the cylindrical of described connecting ring (10) is fixedlyed connected with link arm (8).
6. vacuum breaker valve according to claim 1, it is characterized in that: described flap (2) is provided with sealed groove (11), sealed groove (11) is positioned between valve seat (5) and the flap (2), be provided with the seal ring (4) that is complementary with sealed groove (11) in the sealed groove (11), seal ring (4) upper end is provided with limiting board (12), and limiting board (12) is fixedlyed connected with flap (2) by second screw (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220705013 CN203082297U (en) | 2012-12-19 | 2012-12-19 | Vacuum breaker valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220705013 CN203082297U (en) | 2012-12-19 | 2012-12-19 | Vacuum breaker valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203082297U true CN203082297U (en) | 2013-07-24 |
Family
ID=48828135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220705013 Expired - Lifetime CN203082297U (en) | 2012-12-19 | 2012-12-19 | Vacuum breaker valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203082297U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744002A (en) * | 2019-10-09 | 2020-02-04 | 洪方正 | Vacuum breaker valve and preparation method thereof |
| CN110792821A (en) * | 2019-01-15 | 2020-02-14 | 王欣 | Weight lever type safety valve |
-
2012
- 2012-12-19 CN CN 201220705013 patent/CN203082297U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792821A (en) * | 2019-01-15 | 2020-02-14 | 王欣 | Weight lever type safety valve |
| CN110792821B (en) * | 2019-01-15 | 2021-06-08 | 王欣 | Weight lever type safety valve |
| CN110744002A (en) * | 2019-10-09 | 2020-02-04 | 洪方正 | Vacuum breaker valve and preparation method thereof |
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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 |
Granted publication date: 20130724 |
|
| CX01 | Expiry of patent term |