CN204226748U - The super-silent safety check of a kind of bypass damped type - Google Patents
The super-silent safety check of a kind of bypass damped type Download PDFInfo
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- CN204226748U CN204226748U CN201420642636.1U CN201420642636U CN204226748U CN 204226748 U CN204226748 U CN 204226748U CN 201420642636 U CN201420642636 U CN 201420642636U CN 204226748 U CN204226748 U CN 204226748U
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- flap
- valve body
- valve rod
- piston type
- discharge orifice
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Abstract
The utility model provides the super-silent safety check of a kind of bypass damped type, comprise valve body, valve rod and flap, the top of valve rod is fixedly connected with flap, and the tail end of valve rod is fixed with flap after piston type, be provided with a leading truck between flap after flap and piston type, valve rod runs through leading truck; The outer surface of valve body is provided with bypass duct, and the inside of valve body is provided with discharge orifice, and one end of discharge orifice is connected with the inside of bypass duct, the other end of discharge orifice and the intracavity inter-connection of valve body; Discharge orifice is distributed in the region on valve body after piston type corresponding to the movement locus of flap near the side of valve rod tail end.The utility model adopts bypass duct, the medium of backflow is incorporated into other pipelines from the inside of valve body, good shunting effect is served to medium, avoid the percussion of reflux medium for component, thus significantly reduce noise, achieve quiet effect.
Description
Technical field
The utility model belongs to field of check valves, relates to the noise-reducing technology of safety check, specifically the super-silent safety check of a kind of bypass damped type.
Background technique
Safety check is a kind of one-way valve, and its effect is the function ensureing medium directional flow in pipeline and unlikely refluence.When the flap in safety check is closed gradually, due to the imbalance of pressure, very easily cause water hammer, on the one hand larger destruction is produced to each part of safety check inside, also can produce very large noise on the other hand; Although can reduce the destruction of water hammer for component by increasing damping device, the noise produced still is difficult to avoid, and is especially not suitable for the place that sound has higher requirements at some.
Model utility content
The purpose of this utility model is to provide the super-silent safety check of a kind of bypass damped type, impacts component and the enormous impact sound that produces, reach the effect reducing noise when the shunting action by bypass duct reduces medium back flow; Structure after simultaneously improving also has damping, reduces medium back flow to the destruction of component.
The utility model is achieved through the following technical solutions: the super-silent safety check of bypass damped type, comprise valve body, valve rod and flap, described valve rod and described flap are placed in the inner chamber of described valve body, the top of described valve rod is fixedly connected with described flap, contact with the front valve seat in the inner chamber being arranged on described valve body when described flap is in the closed position and seal, the tail end of described valve rod is fixed with flap after a piston type, the inner chamber of described valve body, after described piston type flap movement locus on be provided with a rear valve base, after described piston type, flap is connected with described rear valve base slipper seal, be provided with a leading truck between flap after described flap and described piston type, described valve rod runs through described leading truck, between described leading truck and described flap, the outer surface of described valve rod is evenly distributed with spring, the outer surface of described valve body is provided with bypass duct, and the inside of described valve body is provided with discharge orifice, and described discharge orifice runs through described rear valve base, one end of described discharge orifice is connected with the inside of described bypass duct, the other end of described discharge orifice and the intracavity inter-connection of described valve body, described discharge orifice is distributed in the region on described valve body after described piston type corresponding to the movement locus of flap near the side of described valve rod tail end.
Preferably, after described piston type, flap is provided with at least two spokes, the section area equal proportion of flap after described piston type is split by described spoke.
Preferably, described valve rod offers at least one track runner, corresponding described position-limited rack is provided with track projection.
Preferably, the inside of described valve body offers a pore, and one end of described pore is connected with described bypass duct, the intracavity inter-connection of the described valve body at the other end of described pore and the movement locus place of described flap; The opening of one end of the intracavity inter-connection of described pore and described valve body is provided with a sealing cover, and described sealing cover is connected with described valve rod by a connecting rod.
Compared with prior art, its effect is positive to the utility model.
1, the utility model adopts bypass duct, the medium of backflow is incorporated into other pipelines from the inside of valve body, good shunting effect is served to medium, avoid the percussion of reflux medium for component, thus significantly reduce noise, achieve quiet effect.
2, the utility model adopts at least two spokes; the form of the medium of backflow is changed; define certain resistance; also the impact force of medium to spring has been cushioned; there is good damping; while protection spring, also make flap can the quiet closedown of smooth sequential, the sealing surface of protection flap and valve seat be damaged.
3, the utility model guarantees the to-and-fro motion of valve rod by track runner and track projection, avoids the rotary motion of valve rod, for protection spring, guarantees that spring is in optimum Working all the time and has positive effect.
4, the utility model also can by the intracavity inter-connection of bypass duct by discharge orifice and valve body, when medium back flow, the local negative pressure that inner chamber is formed makes the air in bypass duct flow into and keep certain pressure, negative pressure in bypass duct then can attract the inflow of reflux medium, discharge orifice is in again the tail end of bypass duct simultaneously, continues to flow to assigned direction and can not be back in the inner chamber of valve body when therefore medium drains into this place by external force such as gravity.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is the cross section structure schematic diagram of flap after the utility model piston type.
Wherein: 1 is valve body; 2 is flap; 3 is flap after piston type; 4 is front valve seat; 5 is rear valve base; 6 is leading truck; 7 is spring; 8 is discharge orifice; 9 is valve rod; 10 is spoke.
Embodiment
For enabling above-mentioned purpose of the present utility model, feature and advantage more become apparent, and are described in detail embodiment of the present utility model below in conjunction with accompanying drawing.
Set forth detail in the following description so that fully understand the utility model.But the utility model can be different from alternate manner described here to implement with multiple, those skilled in the art can when doing similar popularization without prejudice to when the utility model intension.Therefore the utility model is not by the restriction of following public embodiment.
Embodiment one
See Fig. 1, the super-silent safety check of bypass damped type, comprises valve body 1, valve rod 9 and flap 2, and valve rod 9 and flap 2 are placed in the inner chamber of valve body 1, the top of valve rod 9 is fixedly connected with flap 2, contacts seal when flap 2 is in the closed position with the front valve seat 4 in the inner chamber being arranged on valve body 1; The tail end of valve rod 9 is fixed with flap 3 after piston type, after the inner chamber of valve body 1, piston type flap 3 movement locus on be provided with rear valve base 5, after piston type, flap 3 is connected with rear valve base 5 slipper seal; Be provided with leading truck 6 between flap 3 after flap 2 and piston type, valve rod 9 runs through leading truck 6, and valve rod 9 can be reciprocating under the guiding of leading truck 6 under the promotion of medium; Between leading truck 6 and flap 2, the outer surface of valve rod 9 is evenly distributed with spring 7; The outer surface of valve body 1 is provided with bypass duct, and bypass duct can arrange one, also can arrange many, and it is mainly selected according to the conveying intensity of medium and circulating flow strength, is directly proportional to the quantity of bypass duct; The inside of valve body 1 is provided with discharge orifice 8, and discharge orifice 8 runs through rear valve base 5, and the quantity of discharge orifice 8 and the quantity of bypass duct can be consistent; One end of discharge orifice 8 is connected with the inside of bypass duct, the other end of discharge orifice 8 and the intracavity inter-connection of valve body 1; Discharge orifice 8 is distributed in the region on valve body 1 after piston type corresponding to the movement locus of flap 3 near the side of valve rod 9 tail end.
During safety check work, medium from left to right direction flows into, flap is pushed because of the pressure difference of left and right side and then opens, namely flap is to left movement, spring is compressed accordingly, valve rod also under the effect of flap to left movement, A point when flap is also closed from flap near the side of valve rod tail end after piston type moves to B point during flap standard-sized sheet, and the valve body corresponding being also distributed in from A point to B point of discharge orifice; Due to flap standard-sized sheet, now after piston type, the discharge orifice between A point to B point can all seal by flap, and thus medium can not flow into bypass duct; When medium stops conveying gradually, the pressure now on the right side of flap will be greater than the pressure in left side, and will be discharged elastic force by the spring compressed, flap is closed gradually; In flap closing process; the right side of flap can produce certain negative pressure state; the medium refluxed now can be caused to accelerate to rush at the parts such as flap; produce noise; but now after piston type, discharge orifice exposes along with the tube wall of flap by flap; therefore the medium refluxed can flow into bypass duct along discharge orifice, thus reduces the generation of noise, also has positive effect for component such as protection flap, spring etc. simultaneously.
Embodiment two
The present embodiment is that the one of embodiment one is improved, and see Fig. 2, namely after piston type, flap 3 is provided with three spokes 10, the section area equal proportion of flap after piston type 3 is split by spoke 10.
Area of passage has been divided into three bulks by three spokes designed in the present embodiment, when medium back flow, change the fluidised form of medium, form certain resistance, when valve closing, flap after flap dragging piston type, the resistance formed by flap after piston type and damping structure thereof has effectively cushioned the impact force of medium to spring, reduce the flow velocity of medium, make spring slowly return, namely flap can quiet closedown under the force of a spring.
Embodiment three
The present embodiment is that the another kind of embodiment one improves, and namely valve rod offers two symmetrical track runners, correspondingly with track runner position on position-limited rack is provided with track projection.
Although medium city PARALLEL FLOW on the whole; but some unordered flowings also can have an impact to flap; and then drive the rotation of flap; although the rotation of flap does not have much affect for sealability; but it is larger for spring impact; therefore can avoid the rotation of valve rod, flap after adopting track runner and track projection, thus reach the object of protection spring.
Embodiment four
The present embodiment is another improvement of embodiment one, and offer pore in the inside of valve body, one end of pore is connected with the far-end of bypass duct, namely away from one end of valve body, and the intracavity inter-connection of the valve body at the other end of pore and the movement locus place of flap; The opening of one end of the intracavity inter-connection of pore and valve body is provided with a sealing cover, and sealing cover is connected with valve rod by a connecting rod.
When flap is opened, pore is blocked by the be dynamically connected motion of bar and sealing cover of the Sports band of valve rod, when flap is closed, the motion of valve rod is then by the inner chamber conducting of pore and valve body, negative pressure now near flap can make the air-flow of far-end in bypass duct be incorporated in the inner chamber of valve body, and bypass duct is in negative pressure state, therefore reflux medium better can enter into bypass duct, prevents the generation of noise.
Although the utility model with preferred embodiment openly as above; but it is not for limiting the utility model; any those skilled in the art are not departing from spirit and scope of the present utility model; the Method and Technology content of above-mentioned announcement can be utilized to make possible variation and amendment to technical solutions of the utility model; therefore; every content not departing from technical solutions of the utility model; the any simple modification done above embodiment according to technical spirit of the present utility model, equivalent variations and modification, all belong to the protection domain of technical solutions of the utility model.
Claims (4)
1. the super-silent safety check of bypass damped type, comprise valve body, valve rod and flap, described valve rod and described flap are placed in the inner chamber of described valve body, the top of described valve rod is fixedly connected with described flap, contact with the front valve seat in the inner chamber being arranged on described valve body when described flap is in the closed position and seal, it is characterized in that: the tail end of described valve rod is fixed with flap after a piston type, after the inner chamber of described valve body, described piston type flap movement locus on be provided with a rear valve base, after described piston type, flap is connected with described rear valve base slipper seal; Be provided with a leading truck between flap after described flap and described piston type, described valve rod runs through described leading truck; Between described leading truck and described flap, the outer surface of described valve rod is evenly distributed with spring; The outer surface of described valve body is provided with bypass duct, and the inside of described valve body is provided with discharge orifice, and described discharge orifice runs through described rear valve base; One end of described discharge orifice is connected with the inside of described bypass duct, the other end of described discharge orifice and the intracavity inter-connection of described valve body; Described discharge orifice is distributed in the region on described valve body after described piston type corresponding to the movement locus of flap near the side of described valve rod tail end.
2. the super-silent safety check of bypass damped type as claimed in claim 1, it is characterized in that: after described piston type, flap is provided with at least two spokes, the section area equal proportion of flap after described piston type is split by described spoke.
3. the super-silent safety check of bypass damped type as claimed in claim 1, is characterized in that: described valve rod offers at least one track runner, corresponding described position-limited rack is provided with track projection.
4. the super-silent safety check of bypass damped type as claimed in claim 1, it is characterized in that: the inside of described valve body offers a pore, one end of described pore is connected with described bypass duct, the intracavity inter-connection of the described valve body at the other end of described pore and the movement locus place of described flap; The opening of one end of the intracavity inter-connection of described pore and described valve body is provided with a sealing cover, and described sealing cover is connected with described valve rod by a connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420642636.1U CN204226748U (en) | 2014-11-02 | 2014-11-02 | The super-silent safety check of a kind of bypass damped type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420642636.1U CN204226748U (en) | 2014-11-02 | 2014-11-02 | The super-silent safety check of a kind of bypass damped type |
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| Publication Number | Publication Date |
|---|---|
| CN204226748U true CN204226748U (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420642636.1U Active CN204226748U (en) | 2014-11-02 | 2014-11-02 | The super-silent safety check of a kind of bypass damped type |
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| CN (1) | CN204226748U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864131A (en) * | 2015-04-18 | 2015-08-26 | 张新丰 | Three-way fluid check controller |
| CN108087593A (en) * | 2016-11-19 | 2018-05-29 | 台州阳春机电有限公司 | Non-return eduction valve |
-
2014
- 2014-11-02 CN CN201420642636.1U patent/CN204226748U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864131A (en) * | 2015-04-18 | 2015-08-26 | 张新丰 | Three-way fluid check controller |
| CN108087593A (en) * | 2016-11-19 | 2018-05-29 | 台州阳春机电有限公司 | Non-return eduction valve |
| CN108087593B (en) * | 2016-11-19 | 2023-11-07 | 台州阳春机电有限公司 | Check leakage valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |