CN212509740U - Automatic exhaust valve - Google Patents
Automatic exhaust valve Download PDFInfo
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- CN212509740U CN212509740U CN202021204050.9U CN202021204050U CN212509740U CN 212509740 U CN212509740 U CN 212509740U CN 202021204050 U CN202021204050 U CN 202021204050U CN 212509740 U CN212509740 U CN 212509740U
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- valve
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- valve core
- sealing part
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
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Abstract
The utility model discloses an automatic exhaust valve, include the valve body and set up in the inside valve pocket of valve body, be equipped with the air inlet and the gas outlet of the external and valve pocket of intercommunication on the valve body respectively, be formed with first sealing in the valve pocket, the position that lies in between first sealing and the air inlet in the valve pocket is equipped with towards first sealing reciprocating motion and offsets with it and forms sealed float case, works as when the float case is the first sealing of conflict not, be formed with the clearance that flows of intercommunication air inlet and gas outlet between float case and the valve pocket, the position that lies in between first sealing and the gas outlet in the valve pocket is equipped with and is used for carminative one-way exhaust subassembly. The utility model has the advantages of it is following and effect: the utility model discloses simple structure, stable performance can be applicable to harsh operating mode.
Description
Technical Field
The utility model relates to a valve, in particular to automatic exhaust valve.
Background
The exhaust valve is a control component installed on a pipeline, and is widely applied to drainage facilities in the fields of water supply systems, fire fighting systems, petrochemical systems and the like at present. Most of exhaust valves used in the market at present are of a floating cylinder type, but the exhaust efficiency of the floating cylinder type exhaust valve in a pipeline is low, and when the pressure of fluid in the pipeline is unstable, the valve is easy to automatically drain, so that the existing exhaust valve cannot meet the use requirement under some harsh working conditions.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an automatic exhaust valve, this automatic exhaust valve simple structure, stable performance can be applicable to harsh use operating mode.
The above technical purpose of the present invention can be achieved by the following technical solutions: the automatic exhaust valve comprises a valve body and a valve cavity arranged inside the valve body, wherein a gas inlet and a gas outlet which are communicated with the outside and the valve cavity are respectively arranged on the valve body, a first sealing part is formed in the valve cavity, a float valve core which moves towards the first sealing part in a reciprocating mode and is abutted against the first sealing part to form sealing is arranged at a position between the first sealing part and the gas inlet in the valve cavity, when the float valve core is not abutted against the first sealing part, a flow gap communicated with the gas inlet and the gas outlet is formed between the float valve core and the valve cavity, and a one-way exhaust assembly used for exhausting is arranged at a position between the first sealing part and the gas outlet in the valve cavity.
Through adopting above-mentioned technical scheme, the air inlet admits air, and the air current flows towards one-way exhaust subassembly through flowing the clearance, makes the air current flow out and can not flow into the valve chamber through the gas outlet from the gas outlet through one-way exhaust subassembly. When fluid medium gets into the air inlet, the float valve core produces buoyancy and moves towards first sealing portion with fluid medium under fluid medium's effect, constitutes the mode of balanced seal through the float valve core cooperation first sealing portion and blocks fluid medium and flow towards the gas outlet to reach the effect of separation, promote the stability of valve's performance, can be applicable to harsher service behavior, and simple structure.
Further setting the following steps: the one-way exhaust assembly comprises a check valve core and a sealing valve seat, wherein the check valve core reciprocates along the gas flowing direction, and the sealing valve seat is arranged between the first sealing part and the check valve core and is abutted against the check valve core to form sealing.
By adopting the technical scheme, the gas entering the valve cavity drives the check valve core to move back to the sealing valve seat, so that the gas can flow out of the gas outlet, when the external gas wants to flow into the valve cavity from the gas outlet, the gas drives the check valve core to move towards the sealing valve seat, and the sealing is formed by the abutting fit between the gas and the sealing valve core, so that the external gas cannot enter the valve cavity from the gas outlet.
Further setting the following steps: and the float valve core is provided with a guide part which is in sliding fit with the valve cavity and is used for guiding the float valve core to reciprocate towards the first sealing part.
Through adopting above-mentioned technical scheme, the setting of guide part plays the guide limiting displacement to the float case in moving, makes the float case more accurate towards first sealing removal to better formation sealing cooperation.
Further setting the following steps: the one-way exhaust assembly comprises a guide column which is arranged in the valve cavity and used for guiding the check valve core to reciprocate towards the sealing valve seat, and the check valve core is sleeved on the guide column and is in sealing sliding fit with the guide column.
Through adopting above-mentioned technical scheme, the setting of guide post plays guide limiting displacement to the check case in moving, makes the more accurate sealed disk seat removal of orientation of check case ability to better formation is sealed to be cooperated.
To sum up, the utility model discloses following beneficial effect has: the utility model discloses simple structure, stable performance can be applicable to harsh operating mode.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
fig. 2 is an enlarged view of a portion a in fig. 1.
In the figure: 1. a valve body; 2. a valve cavity; 3. an air inlet; 4. an air outlet; 5. a first seal portion; 6. a float valve core; 7. a flow gap; 8. a one-way exhaust assembly; 81. a check valve core; 82. sealing the valve seat; 83. a guide post; 9. a guide portion.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, an automatic exhaust valve includes a valve body 1 and a valve cavity 2 disposed inside the valve body 1, the valve body 1 is respectively provided with an air inlet 3 and an air outlet 4 communicating with the outside and the valve cavity 2, the air inlet 3 is located below the valve cavity 2, and the air outlet 4 is located above the valve cavity 2.
A first sealing part 5 is formed in the valve cavity 2, a float valve core 6 which reciprocates towards the first sealing part 5 along the vertical direction and is abutted against the first sealing part 5 to form sealing is arranged in the valve cavity 2 between the first sealing part 5 and the air inlet 3, and when the float valve core 6 is not abutted against the first sealing part 5, a flow gap 7 for communicating the air inlet 3 with the air outlet 4 is formed between the float valve core 6 and the valve cavity 2. The float valve core 6 is integrally provided with a guide part 9 which is in sliding fit with the valve cavity 2 and is used for guiding the float valve core 6 to reciprocate towards the first sealing part 5, and the guide part 9 is in clearance fit with the valve cavity 2.
A one-way exhaust component 8 for exhausting is arranged in the valve cavity 2 between the first sealing part 5 and the air outlet 4. The one-way exhaust assembly 8 includes a guide post 83 fixedly disposed in the valve chamber 2, a check valve element 81 disposed on the guide post 83, and a sealing valve seat 82 disposed between the first sealing portion 5 and the check valve element 81 and abutting against the check valve element 81 to form a seal. The check valve core 81 is sleeved on the guide column 83 and is in sealing sliding fit with the guide column 83, the guide column 83 is coaxially arranged with the air outlet 4, and the air outlet 4 is coaxially arranged with the air inlet 3.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (4)
1. The utility model provides an automatic exhaust valve, includes valve body (1) and sets up in inside valve pocket (2) of valve body (1), be equipped with air inlet (3) and gas outlet (4) of the external and valve pocket (2) of intercommunication on valve body (1) respectively, its characterized in that: the exhaust valve is characterized in that a first sealing part (5) is formed in the valve cavity (2), a float valve core (6) which moves towards the first sealing part (5) in a reciprocating mode and abuts against the first sealing part to form sealing is arranged at a position, located between the first sealing part (5) and the air inlet (3), in the valve cavity (2), when the float valve core (6) does not abut against the first sealing part (5), a flow gap (7) which is communicated with the air inlet (3) and the air outlet (4) is formed between the float valve core (6) and the valve cavity (2), and a one-way exhaust assembly (8) used for exhausting is arranged at a position, located between the first sealing part (5) and the air outlet (4), in the valve cavity (2).
2. The automatic exhaust valve according to claim 1 wherein: the one-way exhaust assembly (8) comprises a check valve core (81) which reciprocates along the gas flow direction and a sealing valve seat (82) which is arranged between the first sealing part (5) and the check valve core (81) and is propped against the check valve core (81) to form sealing.
3. The automatic exhaust valve according to claim 1 wherein: and the float valve core (6) is provided with a guide part (9) which is in sliding fit with the valve cavity (2) and is used for guiding the float valve core (6) to reciprocate towards the first sealing part (5).
4. The automatic exhaust valve according to claim 2 wherein: the one-way exhaust assembly (8) comprises a guide column (83) which is arranged in the valve cavity (2) and used for guiding the check valve core (81) to reciprocate towards the sealing valve seat (82), and the check valve core (81) is sleeved on the guide column (83) and is in sealing sliding fit with the guide column (83).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021204050.9U CN212509740U (en) | 2020-06-24 | 2020-06-24 | Automatic exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021204050.9U CN212509740U (en) | 2020-06-24 | 2020-06-24 | Automatic exhaust valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212509740U true CN212509740U (en) | 2021-02-09 |
Family
ID=74439761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021204050.9U Active CN212509740U (en) | 2020-06-24 | 2020-06-24 | Automatic exhaust valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212509740U (en) |
-
2020
- 2020-06-24 CN CN202021204050.9U patent/CN212509740U/en active Active
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