CN204083384U - Swing check valve - Google Patents
Swing check valve Download PDFInfo
- Publication number
- CN204083384U CN204083384U CN201420527405.6U CN201420527405U CN204083384U CN 204083384 U CN204083384 U CN 204083384U CN 201420527405 U CN201420527405 U CN 201420527405U CN 204083384 U CN204083384 U CN 204083384U
- Authority
- CN
- China
- Prior art keywords
- rocking arm
- flap
- groove
- valve body
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses a kind of Swing check valve, comprise valve body, flap, rocking arm and valve seat, middle part and the valve body of described rocking arm are movably hinged, the upper end of described rocking arm is provided with a balancing weight, described flap is installed in the inner side of rocking arm lower end, and formed by the hinged rotation of rocking arm and valve seat and seal, the outside of described rocking arm lower end offers a groove, in described valve body, correspondence is provided with one and can forms the spacing spacing projection of inserting with described groove, and be also equipped with in described groove and can form with described spacing projection the damping mechanism cushioning and coordinate, described damping mechanism includes spring and rubber slide block, the sidewall of described groove offers and embeds and the slippage slot of slippage up and down for described rubber slide block, described pressure mounting of the spring is between rubber slide block and groove floor, adopt said structure, it is better that the utility model provides a kind of sealing effect, the Swing check valve also effectively can alleviated rocking arm and valve interior wall is collided can be opened by low-pressure.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of Swing check valve.
Background technique
Swing check valve is a kind of conventional valve, its structure mainly includes valve body, flap, rocking arm and valve seat, and rocking arm is movably hinged in valve body, and flap is installed in rocking arm lower end, and formed by the hinged rotation of rocking arm and valve seat and seal, but in actual applications, because flap weight is large, and be mostly positioned at rocking arm lower end again, when therefore causing rocking arm to open flap by hinged rotation, larger gravitational moment need be overcome, thus cause the more difficult low-pressure of flap to open, the normal operation of influential system.Meanwhile, after flap is unlocked, rocking arm upwards rotates also inwall that is easy and valve body and collides, and under the continuous shock of rocking arm, valve interior wall easily occurs that breakage is even ruptured, thus greatly shortens the working life of valve.In addition, the valve seat of existing Swing check valve and flap are and are firmly sealed and matched, and lack flexibility compensation, and sealing effect is poor.
Summary of the invention
For the deficiencies in the prior art, the utility model provide a kind of sealing effect better, can open and effectively can alleviate the Swing check valve that rocking arm collides valve interior wall by low-pressure.
For achieving the above object, the utility model provides a kind of Swing check valve, comprise valve body, flap, rocking arm and valve seat, middle part and the valve body of described rocking arm are movably hinged, the upper end of described rocking arm is provided with a balancing weight, described flap is installed in the inner side of rocking arm lower end, and formed by the hinged rotation of rocking arm and valve seat and seal, the outside of described rocking arm lower end offers a groove, in described valve body, correspondence is provided with one and can forms the spacing spacing projection of inserting with described groove, and be also equipped with in described groove and can form with described spacing projection the damping mechanism cushioning and coordinate, described damping mechanism includes spring and rubber slide block, the sidewall of described groove offers and embeds and the slippage slot of slippage up and down for described rubber slide block, described pressure mounting of the spring is between rubber slide block and groove floor, described valve seat is made up of elastic rubber ring and metal steel core, elastic rubber ring is wrapped in outside metal steel core, the exterior edge face of described elastic rubber ring is towards flap, the interior edge face of described elastic rubber ring abuts with valve body, and the interior edge face that abuts with valve body of described elastic rubber ring also offers elastic strain gap slot.
The beneficial effects of the utility model are: adopt said structure, because described rocking arm is that middle part is movably hinged with valve body, described flap is installed in rocking arm lower end, the upper end of rocking arm is then provided with a balancing weight, therefore under the gravitational equilibrium effect of described balancing weight, described rocking arm can be made under low-pressure effect just can to drive flap hinging rotary, thus the low-pressure realizing valve is opened.Simultaneously; outside due to described rocking arm lower end offers a groove; in described valve body, correspondence is provided with one and can forms the spacing spacing projection of inserting with described groove; and be also equipped with in described groove and can form with described spacing projection the damping mechanism cushioning and coordinate; therefore said structure is passed through; can effectively avoid rocking arm directly and valve interior wall bump against, thus valve body is effectively protected, greatly extends the whole service life of valve body.In addition, valve seat of the present utility model is made up of elastic rubber ring and metal steel core, rigidity when metal steel core effectively can guarantee that elastic rubber ring is squeezed, the elastic strain gap slot that described elastic rubber ring is offered, then can valve seat and flap fit seal after form elastic packing effectively and compensate, thus the sealability of valve is strengthened greatly.
Outwards one-body molded on the end face that the utility model can be set to described flap valve seat dorsad further have a stud, on described rocking arm, corresponding being provided with can form the screw of threaded with described stud, and the stud on described rocking arm and flap is fixed by nut is spacing after being spirally connected.
Adopt said structure, on flap, the one-body molded stud can fixed with rocking arm bolt, not only effectively can simplify the overall structure of valve, but also make flap more reliable with being fixedly connected with of rocking arm.
The utility model also can be set to described balancing weight further and be fixed by lock screw and rocking arm.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the I portion enlarged view of Fig. 1;
Fig. 3 is the II portion enlarged view of Fig. 1.
Embodiment
Give a kind of Swing check valve as shown in Figure 1, 2, 3, comprise valve body 1, flap 2, rocking arm 3 and valve seat 4, middle part and the valve body 1 of described rocking arm 3 are movably hinged, and the upper end of described rocking arm 3 is provided with a balancing weight 5, and described balancing weight 5 is fixed by lock screw 51 and rocking arm 3.Described flap 2 is installed in the inner side of rocking arm 3 lower end, and formed by the hinged rotation of rocking arm 3 and valve seat 4 and seal, outwards one-body molded on the end face of described flap 2 valve seat 4 dorsad have a stud 21, on described rocking arm 3, corresponding being provided with can form the screw 31 of threaded with described stud 21, and described rocking arm 3 and the stud 21 on flap 2 are spacing fixing by nut 6 after being spirally connected.The outside of described rocking arm 3 lower end offers a groove 32, in described valve body 1, correspondence is provided with one and can forms the spacing spacing projection 11 of inserting with described groove 32, and be also equipped with in described groove 32 and can form with described spacing projection 11 damping mechanism 7 cushioning and coordinate, described damping mechanism 7 includes spring 71 and rubber slide block 72, the sidewall of described groove 32 offers and embeds and the slippage slot 321 of slippage up and down for described rubber slide block 72, described spring 71 press-fits between rubber slide block 72 and groove floor 322, described valve seat 4 is made up of elastic rubber ring 41 and metal steel core 42, elastic rubber ring 41 is wrapped in outside metal steel core 42, the exterior edge face of described elastic rubber ring 41 is towards flap 2, the interior edge face of described elastic rubber ring 42 abuts with valve body 1, and the interior edge face that abuts with valve body 1 of described elastic rubber ring 41 also offers elastic strain gap slot 411.Adopt said structure, the utility model provide a kind of sealing effect better, can open and effectively can alleviate the Swing check valve of rocking arm 3 pairs of valve body 1 inwalls collisions by low-pressure.
Claims (3)
1. a Swing check valve, comprise valve body, flap, rocking arm and valve seat, it is characterized in that: middle part and the valve body of described rocking arm are movably hinged, the upper end of described rocking arm is provided with a balancing weight, described flap is installed in the inner side of rocking arm lower end, and formed by the hinged rotation of rocking arm and valve seat and seal, the outside of described rocking arm lower end offers a groove, in described valve body, correspondence is provided with one and can forms the spacing spacing projection of inserting with described groove, and be also equipped with in described groove and can form with described spacing projection the damping mechanism cushioning and coordinate, described damping mechanism includes spring and rubber slide block, the sidewall of described groove offers and embeds and the slippage slot of slippage up and down for described rubber slide block, described pressure mounting of the spring is between rubber slide block and groove floor, described valve seat is made up of elastic rubber ring and metal steel core, elastic rubber ring is wrapped in outside metal steel core, the exterior edge face of described elastic rubber ring is towards flap, the interior edge face of described elastic rubber ring abuts with valve body, and the interior edge face that abuts with valve body of described elastic rubber ring also offers elastic strain gap slot.
2. Swing check valve according to claim 1, it is characterized in that: outwards one-body molded on the end face of described flap valve seat dorsad have a stud, on described rocking arm, corresponding being provided with can form the screw of threaded with described stud, and the stud on described rocking arm and flap is fixed by nut is spacing after being spirally connected.
3. Swing check valve according to claim 1, is characterized in that: described balancing weight is fixed by lock screw and rocking arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420527405.6U CN204083384U (en) | 2014-09-15 | 2014-09-15 | Swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420527405.6U CN204083384U (en) | 2014-09-15 | 2014-09-15 | Swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204083384U true CN204083384U (en) | 2015-01-07 |
Family
ID=52176105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420527405.6U Expired - Fee Related CN204083384U (en) | 2014-09-15 | 2014-09-15 | Swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204083384U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015077A (en) * | 2016-08-04 | 2016-10-12 | 浙江水利水电学院 | Energy-saving flap valve |
| CN108916426A (en) * | 2018-08-27 | 2018-11-30 | 成都飞机工业（集团）有限责任公司 | It is a kind of can buffer fluid impact check valve |
| CN110219999A (en) * | 2019-05-16 | 2019-09-10 | 山东钢铁股份有限公司 | Rotating exhaust valve |
-
2014
- 2014-09-15 CN CN201420527405.6U patent/CN204083384U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015077A (en) * | 2016-08-04 | 2016-10-12 | 浙江水利水电学院 | Energy-saving flap valve |
| CN106015077B (en) * | 2016-08-04 | 2018-05-08 | 浙江水利水电学院 | A kind of energy saving flap valve |
| CN108916426A (en) * | 2018-08-27 | 2018-11-30 | 成都飞机工业（集团）有限责任公司 | It is a kind of can buffer fluid impact check valve |
| CN110219999A (en) * | 2019-05-16 | 2019-09-10 | 山东钢铁股份有限公司 | Rotating exhaust 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20160915 |