CN203248794U - Suck-back prevention air escape valve - Google Patents
Suck-back prevention air escape valve Download PDFInfo
- Publication number
- CN203248794U CN203248794U CN 201320265576 CN201320265576U CN203248794U CN 203248794 U CN203248794 U CN 203248794U CN 201320265576 CN201320265576 CN 201320265576 CN 201320265576 U CN201320265576 U CN 201320265576U CN 203248794 U CN203248794 U CN 203248794U
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- Prior art keywords
- valve
- air
- elastomer
- outlet chamber
- valve gap
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Lift Valve (AREA)
Abstract
The utility model discloses a suck-back prevention air escape valve. The suck-back prevention air escape valve comprises a valve body, the valve body is internally provided with an airflow passage, the airflow passage is internally provided with a valve seat, the valve seat divides the airflow passage into an air inlet chamber and an air outlet chamber, an air inlet hole is disposed on the air inlet chamber, a valve hole is disposed on the valve seat, a valve cap is disposed on one side of the air outlet chamber with the side being away from the valve seat, an on-off member for closing or opening the valve hole is disposed on the valve cap, an air escape hole is disposed on one side of the air outlet chamber, an elastic body is disposed at the air escape hole and comprises an elastic body neck part and a pressing button part which are connected with each other, the elastic body neck part is internally provided with an elastic body air outlet passage communicated with the air escape hole, and an air escape incision is disposed on one side of the pressing button part. According to the suck-back prevention air escape valve provided by the utility model, the elastic body is disposed at the air escape hole, such that by using the elasticity of the elastic body, the air escape incision can be opened by the pressing button part of the elastic part under the impetus of gas pressure and return and be closed under on gas pressure, thereby effectively preventing gas back suction.
Description
Technical field
The utility model relates to a kind of anti-suck gas bleeder valve, is specifically related to a kind of gas bleeder valve of anti-suck.
Background technique
In many needs slowly and are stably let out device except gas pressure, gas bleeder valve all can be set with the discharge of gas in the control gear or stop to discharge.Existing gas bleeder valve generally controls the unlatching of gas bleeder valve by open-shut device or cuts out, when open-shut device was opened the situation of rear as some suck-backs of generation, Adopts measure was that open-shut device is closed at once, and this measure of closing needs certain hour, gas has arrived and has sucked a part, closes slower.
Summary of the invention
The purpose of this utility model is: for the deficiencies in the prior art, the utility model provides a kind of disappointing closing fast, can effectively prevent the anti-suck gas bleeder valve of suck-back.
To achieve these goals, the utility model has adopted following technological scheme:
A kind of anti-suck gas bleeder valve, comprise valve body, be provided with air-flow path in the described valve body, be provided with valve seat in the described air-flow path, described valve seat is separated into air-inlet cavity and outlet chamber with air-flow path, described air-inlet cavity is provided with inlet hole, described valve seat is provided with valve opening, described outlet chamber is provided with valve gap away from a side of valve seat, valve gap is provided with the open-shut device that can seal or open valve opening, one side of described outlet chamber is provided with bleeder port, described bleeder port is provided with elastomer, described elastomer comprises interconnective elastomer neck and button section, is provided with the elastomer outlet passageway that is communicated with bleeder port in the described elastomer neck, and a side of button section offers disappointing otch.
As preferably, described bleeder port radially is arranged on the sidewall of valve body, the madial wall of described bleeder port is provided with draw-in groove, and described elastomer neck is provided with the elastomer fixture block by an end outer side wall of bleeder port, and described elastomer fixture block engages setting with described draw-in groove.After adopting above-mentioned preferred version, the installation of elastomer and valve body is detachable, when needs carry out a large amount of exhaust, elastomer can be disassembled, thereby carry out a large amount of exhausts, avoids elastomer is caused breaking-up.
As preferably, the internal diameter of described valve opening is increased gradually by air-inlet cavity to outlet chamber, described open-shut device comprises the start and stop lever that stretches in the outlet chamber, described start and stop lever is provided with the piece of closing that can stretch into or withdraw from valve opening by a side of valve opening, described internal diameter relative set of closing external diameter and the valve opening of piece, described external diameter of closing piece is reduced gradually by the direction of air-inlet cavity to outlet chamber.After adopting above-mentioned preferred version, closing piece and can more successfully being pushed in the valve opening of open-shut device when closing, can form more closely with valve opening and fit.
As preferably, described valve body and valve seat corresponding position are provided with the valve body inner convex platform, described valve seat and valve body inner convex platform corresponding position are provided with the valve seat outer lug boss, the setting that offsets of described valve seat outer lug boss and valve body inner convex platform, and described valve seat adopts the mode of welding to be fixedly connected with valve body.After adopting above-mentioned preferred version, valve body and valve seat form mutual spacing, can not be shifted.
As preferably, described valve gap comprises the valve gap head and stretches into the valve gap plug of the outlet chamber of valve body, is provided with the valve gap boss between described valve gap head and the valve gap plug, the setting that offsets of the end of described valve gap boss and described valve body.After adopting above-mentioned preferred version, arranging of valve gap boss carried out position-limiting action to valve gap, and valve gap can excessively not stretched in the outlet chamber.
As preferably, the outer side wall of described valve gap plug is provided with the outer side wall annular seal groove, and the madial wall of described valve gap plug is provided with the madial wall annular seal groove, is provided with the O RunddichtringO in described outer side wall annular seal groove and the madial wall annular seal groove.After adopting above-mentioned preferred version, valve gap plug and valve body madial wall form and are sealed and matched, and avoid gas from the slot leakage between valve gap plug and the valve body madial wall.
As preferably, be provided with the valve gap endoporus in the described valve gap, the start and stop lever of described open-shut device is provided with adjusting seat away from an end of closing piece, and the outer side wall of described adjusting seat is provided with the adjusting internal thread, is provided with in the described valve gap endoporus and the adjusting outside thread of regulating the internal thread relative set.After adopting above-mentioned preferred version, the adjusting seat on the open-shut device can realize closing the to-and-fro motion of piece, thereby realizes closing and opening of valve opening.
Anti-suck gas bleeder valve of the present utility model arranges elastomer at the bleeder port place, utilize the elastic force of elastomer self, the otch that loses heart can be opened by elastomeric button section under the promotion of gas pressure, in the situation without gas pressure, lose heart otch because autoshutdown is replied in elastomeric elastic force effect, thereby effectively prevent the suck-back of gas.
Description of drawings
Fig. 1 is the utility model embodiment's overall structure schematic representation;
Fig. 2 is the partial enlarged drawing at A place among Fig. 1;
Structural representation when Fig. 3 is the disappointing otch unlatching of elastomer.
Embodiment
Such as Fig. 1, Fig. 2 and shown in Figure 3, embodiment of the present utility model is a kind of anti-suck gas bleeder valve specifically, comprises valve body 1, is provided with air-flow path 11 in the valve body 1, is provided with valve seat 2 in the air-flow path 11.Valve seat 2 is separated into air-inlet cavity 111 and outlet chamber 112 with air-flow path 11.Air-inlet cavity 111 is provided with inlet hole 1111.Valve seat 2 is provided with valve opening 21.Outlet chamber 112 is provided with valve gap 3 away from a side of valve seat 2, and valve gap 3 is provided with the open-shut device 4 that can seal or open valve opening.One side of outlet chamber 112 is provided with bleeder port 1121.Bleeder port 1121 is provided with elastomer 5.Elastomer 5 comprises interconnective elastomer neck 51 and button section 52, and button section 52 is hemisphere.Be provided with the elastomer outlet passageway 511 that is communicated with bleeder port 1121 in the elastomer neck 51, a side of button section 52 offers the otch 521 that loses heart.Bleeder port 1121 radially is arranged on the sidewall of valve body 1, and the madial wall of bleeder port 1121 is provided with draw-in groove 1122, and elastomer neck 51 is provided with elastomer fixture block 512 by an end outer side wall of bleeder port 1121, and elastomer fixture block 512 engages setting with draw-in groove 1122.
The internal diameter of valve opening 21 is increased to outlet chamber 112 gradually by air-inlet cavity 111, and open-shut device 4 comprises the start and stop lever 41 that stretches into outlet chamber 112, start and stop lever 41 by a side of valve opening 21 be provided with can stretch into or withdraw from valve opening 21 close piece 42.Close the internal diameter relative set of external diameter and the valve opening 21 of piece 42.The external diameter of closing piece 42 is reduced gradually by the direction of air-inlet cavity 111 to outlet chamber 112.
Valve gap 3 comprises valve gap head 31 and stretches into the valve gap plug 32 of the outlet chamber 112 of valve body 1, is provided with valve gap boss 33 between valve gap head 31 and the valve gap plug 32.The setting that offsets of the end of valve gap boss 33 and valve body 1.The outer side wall of valve gap plug 32 is provided with outer side wall annular seal groove 321, and the madial wall of valve gap plug 32 is provided with madial wall annular seal groove 322, is provided with O RunddichtringO 323 in outer side wall annular seal groove 321 and the madial wall annular seal groove 322.Be provided with valve gap endoporus 34 in the valve gap 3.The start and stop lever 41 of open-shut device 4 is provided with adjusting seat 43 away from an end of closing piece 42, and the outer side wall of adjusting seat 43 is provided with regulates internal thread 431, is provided with in the valve gap endoporus 34 and the adjusting outside thread 341 of regulating internal thread 431 relative set.
During work, when needs carry out exhaust, the adjusting seat 43 of rotary opening and closing spare 4, close piece 42 and withdraw from valve opening 21, valve opening 21 is unlocked, and gas enters outlet chamber 112 by valve opening 21, pressure rises in the outlet chamber 112, the button section 52 of elastomer 5 is open, and the disappointing otch 521 on the elastomer 5 is opened, thereby realizes the discharge of gas.
Claims (7)
1. anti-suck gas bleeder valve, comprise valve body, be provided with air-flow path in the described valve body, be provided with valve seat in the described air-flow path, described valve seat is separated into air-inlet cavity and outlet chamber with air-flow path, it is characterized in that: described air-inlet cavity is provided with inlet hole, described valve seat is provided with valve opening, described outlet chamber is provided with valve gap away from a side of valve seat, valve gap is provided with the open-shut device that can seal or open valve opening, one side of described outlet chamber is provided with bleeder port, described bleeder port is provided with elastomer, described elastomer comprises interconnective elastomer neck and button section, is provided with the elastomer outlet passageway that is communicated with bleeder port in the described elastomer neck, and a side of button section offers disappointing otch.
2. anti-suck gas bleeder valve according to claim 1, it is characterized in that: described bleeder port radially is arranged on the sidewall of valve body, the madial wall of described bleeder port is provided with draw-in groove, described elastomer neck is provided with the elastomer fixture block by an end outer side wall of bleeder port, and described elastomer fixture block engages setting with described draw-in groove.
3. anti-suck gas bleeder valve according to claim 1, it is characterized in that: the internal diameter of described valve opening is increased gradually by air-inlet cavity to outlet chamber, described open-shut device comprises the start and stop lever that stretches in the outlet chamber, described start and stop lever is provided with the piece of closing that can stretch into or withdraw from valve opening by a side of valve opening, described internal diameter relative set of closing external diameter and the valve opening of piece, described external diameter of closing piece is reduced gradually by the direction of air-inlet cavity to outlet chamber.
4. anti-suck gas bleeder valve according to claim 1, it is characterized in that: described valve body and valve seat corresponding position are provided with the valve body inner convex platform, described valve seat and valve body inner convex platform corresponding position are provided with the valve seat outer lug boss, the setting that offsets of described valve seat outer lug boss and valve body inner convex platform, described valve seat adopts the mode of welding to be fixedly connected with valve body.
5. anti-suck gas bleeder valve according to claim 1, it is characterized in that: described valve gap comprises the valve gap head and stretches into the valve gap plug of the outlet chamber of valve body, be provided with the valve gap boss between described valve gap head and the valve gap plug, the setting that offsets of the end of described valve gap boss and described valve body.
6. anti-suck gas bleeder valve according to claim 5, it is characterized in that: the outer side wall of described valve gap plug is provided with the outer side wall annular seal groove, the madial wall of described valve gap plug is provided with the madial wall annular seal groove, is provided with the O RunddichtringO in described outer side wall annular seal groove and the madial wall annular seal groove.
7. anti-suck gas bleeder valve according to claim 3, it is characterized in that: be provided with the valve gap endoporus in the described valve gap, the start and stop lever of described open-shut device is provided with adjusting seat away from an end of closing piece, the outer side wall of described adjusting seat is provided with the adjusting internal thread, is provided with in the described valve gap endoporus and the adjusting outside thread of regulating the internal thread relative set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320265576 CN203248794U (en) | 2013-05-14 | 2013-05-14 | Suck-back prevention air escape valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320265576 CN203248794U (en) | 2013-05-14 | 2013-05-14 | Suck-back prevention air escape valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248794U true CN203248794U (en) | 2013-10-23 |
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ID=49375233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320265576 Expired - Fee Related CN203248794U (en) | 2013-05-14 | 2013-05-14 | Suck-back prevention air escape valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203248794U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013141A (en) * | 2020-09-14 | 2020-12-01 | 广州追趣实业有限公司 | Quick air release valve |
-
2013
- 2013-05-14 CN CN 201320265576 patent/CN203248794U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013141A (en) * | 2020-09-14 | 2020-12-01 | 广州追趣实业有限公司 | Quick air release valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20190514 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |