CN205226489U - Ball check valve - Google Patents
Ball check valve Download PDFInfo
- Publication number
- CN205226489U CN205226489U CN201521092489.6U CN201521092489U CN205226489U CN 205226489 U CN205226489 U CN 205226489U CN 201521092489 U CN201521092489 U CN 201521092489U CN 205226489 U CN205226489 U CN 205226489U
- Authority
- CN
- China
- Prior art keywords
- spherical shutoff
- spherical
- shutoff spool
- runner
- valve port
- 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
Links
Abstract
The utility model relates to a check valve, a ball check valve of especially spherical shutoff case. This check valve includes valve body and spherical shutoff case, the runner has in the valve body, the one end of runner has the influent stream mouth, the other end of runner has outflowing port, spherical shutoff case activity chamber has on the runner in the valve body, the one end and outflowing port looks UNICOM in spherical shutoff case activity chamber, the other end in spherical shutoff case activity chamber has the valve port, valve port and influent stream mouth looks UNICOM, the internal diameter of valve port is less than spherical shutoff case, spherical shutoff case freely overlaps to be put spherical shutoff case activity intracavity, characterized by is in the valve port has annular bulge, the annular bulge suits with the surface of spherical shutoff case. This product not only moves reliably but also can get rid of the potential safety hazard.
Description
Technical field
The utility model relates to a kind of safety check, a kind of ball check valve of especially spherical shutoff spool.
Background technique
Existing form of check valve is various; comprise Lift check valve, Swing check valve, butterfly check valve and spherical shutoff spool safety check etc. kind; especially open and close rapid, security of operation with spherical shutoff spool safety check, be widely used in the All aspects of of protection pipe network equipment.During existing spherical shutoff spool safety check work, spherical shutoff spool is opened valve port and is passed through by medium under the forward of medium promotes, will spherical shutoff spool be pushed to valve port and then closed valve port can not reflux by medium when medium oppositely promotes, but, existing safety check is embedded on valve port due to spherical shutoff spool and the easy compressive deformation of valve port contact segment in the process opening and closing pipeline, and then causes being not easy unlatching valve port or opening slow in reacting.And once the medium of pipeline contains impurity, just easily allow spherical plugging valve core contact with the face between valve port and occur gap, can seal failure be caused, thus cannot ensure that pipeline medium does not reflux, bury hidden danger to the safety of whole pipe network equipment.
Therefore, existing spherical shutoff spool safety check existing defects, needs to improve.
Model utility content
The purpose of this utility model improves in the structure of existing safety check, provides reliable in action and get rid of a kind of ball check valve of potential safety hazard.
A kind of ball check valve of the present utility model, comprise valve body and spherical shutoff spool, in described valve body, there is runner, one end of described runner has influent stream mouth, the other end of described runner has head piece, runner in described valve body has the movable chamber of spherical shutoff spool, the one end in the movable chamber of described spherical shutoff spool with go out head piece and be connected, the other end in the movable chamber of described spherical shutoff spool has valve port, described valve port and influent stream mouth are connected, the internal diameter of described valve port is less than spherical shutoff spool, described spherical shutoff spool is freely nested with in the movable chamber of described spherical shutoff spool, it is characterized in that, at described valve port, there is annular protrusion, the outer surface of described annular protrusion and spherical shutoff spool adapts.
Spherical shutoff spool described in the utility model is freely nested with in the movable chamber of described spherical shutoff spool, namely refer to that described spherical shutoff spool has two kinds of working staties in the movable chamber of spherical shutoff spool, when described spherical shutoff spool is in the working state contacted with valve port, valve port can be closed and allow runner be not connected two sections from valve port punishment by described spherical shutoff spool, when spherical shutoff spool is in working state non-contacting with valve port, the influent stream mouth of runner and go out between head piece to allow medium freely pass through.
Described in the utility model, valve port has annular protrusion, the outer surface of described annular protrusion and spherical shutoff spool adapts, namely refer to the easy compressive deformation of contact segment due to existing spherical shutoff spool and valve port and be embedded on valve port, and then causing being not easy open valve port or open slow in reacting.And once the medium of pipeline contains impurity, just easily allow spherical plugging valve core contact with the face between valve port and occur gap, can seal failure be caused, thus cannot ensure that pipeline medium does not reflux, bury hidden danger to the safety of whole pipe network equipment.For above problem, valve port has annular protrusion, can effectively prevent spherical shutoff spool to be stuck on valve port, thus allow the opening and closing reliable in action of valve port, be quick on the draw.And contacted with the face between valve port by spherical shutoff spool and change into linear contact lay, even if the medium of pipeline contains impurity, described impurity is also not easy to rest on linear contact lay position, and then ensure that pipeline medium does not reflux, eliminate potential safety hazard.
The movable chamber of spherical shutoff spool in the utility model both can be independent one, also can the runner in above-mentioned valve body be arranged simultaneously multiple, corresponding to the spherical shutoff spool that above-mentioned valve port adapts also can be single or multiple, as long as above-mentioned valve port and spherical shutoff spool one_to_one corresponding and work in coordination.When the runner in valve body has simultaneously the movable chambeies of three spherical shutoff spools and corresponding there is three shutoff spools and its valve port one_to_one corresponding and cooperatively interact time, the valve port in three movable chambeies of spherical shutoff spool is all connected with the influent stream mouth of runner, and the other end of three shutoff spools is all connected with the head piece that goes out of runner; When three shutoff spools are in the valve port corresponding with the above-mentioned movable chamber of three spherical shutoff spools in the working state contacted simultaneously, above-mentioned runner is truncated.
Spherical shutoff spool described in the utility model, both can be common hard spheres shutoff spool, also can be elastic sphere shutoff spool, can also be that hard spheres plugging valve core outer surface has elasitic layer.Above-mentioned elasitic layer can complete coated valve core outer surface also can the coated valve core outer surface of part, this elasitic layer can be made up of rubber materials such as existing nitrile butadiene rubber or ethylene propylene diene rubbers, even can also serve as above-mentioned elasitic layer by plastic pellicle air bag, when the shutoff spool that uses rubber material to be the coated hard spheres of elasitic layer, can allow this shutoff spool Long-Time Service is indeformable, size keeps steady state.When spherical shutoff spool is the shutoff spool with resilient outer surface, this spool is in the process opening and closing pipeline (spherical shutoff spool is opened or blocked above-mentioned runner), substantially avoided vibrations when namely contacting with sealing valve port face or separate, allow opening and closing that the process of pipeline is softer, noise is lower, shutoff is tightr.
Spherical shutoff spool in the utility model can be allowed to condition at therein and have at least one cavity.The proportion of spherical shutoff spool and the liquid medium by the movable chamber of spherical shutoff spool just can be regulated by the number of cavities and/or cavity size controlling setting, when making the proportion of this spherical shutoff spool be adjusted to identical with by the liquid medium proportion in the movable chamber of spherical shutoff spool, namely allow the weight of shutoff spool substantially equal with its buoyancy suffered in liquid medium, like this, this shutoff spool will almost not rub when rolling or slide in the movable chamber of the spherical shutoff spool being full of liquid medium, liquid medium flow resistance is little, and then make safety check engaging pressure less, sealability is stablized, working efficiency and reliability significantly improve.
Working principle of the present utility model is identical with the working principle of existing spherical shutoff spool safety check, therefore, repeats no more herein.
Compared with the aforementioned existing similar products, a kind of ball check valve of the present utility model not only reliable in action but also can potential safety hazard be got rid of.
Content of the present utility model is further described with the following Examples, but content of the present utility model is not limited only to content involved in embodiment.
Accompanying drawing explanation
Fig. 1 is the structural representation of ball check valve in embodiment 1.
Embodiment
As shown in Figure 1, a kind of ball check valve in the present embodiment, comprise valve body 1 and spherical shutoff spool 2, in described valve body 1, there is runner 3, one end of described runner 3 has influent stream mouth 4, the other end of described runner 3 has head piece 5, runner 3 in described valve body has the movable chamber 6 of spherical shutoff spool, the one end in the movable chamber 6 of described spherical shutoff spool with go out head piece 5 and be connected, the other end in the movable chamber 6 of described spherical shutoff spool has valve port 7, described valve port 7 is connected with influent stream mouth 4, the internal diameter of described valve port 7 is less than spherical shutoff spool 2, described spherical shutoff spool 2 is freely nested with in the movable chamber 6 of described spherical shutoff spool, it is characterized in that, at described valve port 7, there is annular protrusion 8, described annular protrusion 8 adapts with the outer surface of spherical shutoff spool 2.
Claims (1)
1. a ball check valve, comprise valve body and spherical shutoff spool, in described valve body, there is runner, one end of described runner has influent stream mouth, the other end of described runner has head piece, runner in described valve body has the movable chamber of spherical shutoff spool, the one end in the movable chamber of described spherical shutoff spool with go out head piece and be connected, the other end in the movable chamber of described spherical shutoff spool has valve port, described valve port and influent stream mouth are connected, the internal diameter of described valve port is less than spherical shutoff spool, described spherical shutoff spool is freely nested with in the movable chamber of described spherical shutoff spool, it is characterized in that, at described valve port, there is annular protrusion, the outer surface of described annular protrusion and spherical shutoff spool adapts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521092489.6U CN205226489U (en) | 2015-12-25 | 2015-12-25 | Ball check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521092489.6U CN205226489U (en) | 2015-12-25 | 2015-12-25 | Ball check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205226489U true CN205226489U (en) | 2016-05-11 |
Family
ID=55901555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521092489.6U Expired - Fee Related CN205226489U (en) | 2015-12-25 | 2015-12-25 | Ball check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205226489U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422927A (en) * | 2015-12-25 | 2016-03-23 | 四川绵竹科力技术发展有限公司 | Ball check valve |
-
2015
- 2015-12-25 CN CN201521092489.6U patent/CN205226489U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422927A (en) * | 2015-12-25 | 2016-03-23 | 四川绵竹科力技术发展有限公司 | Ball check valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205226489U (en) | Ball check valve | |
| CN202691175U (en) | No-wear ball check valve | |
| CN105422927A (en) | Ball check valve | |
| CN202674366U (en) | Valve seat of ball valve | |
| US2375498A (en) | Fluid lockout device | |
| CN203641557U (en) | Double-layer sealing gasket | |
| CN206246721U (en) | The stem structure of ball valve | |
| CN201802909U (en) | Hard sealing ball valve with high temperature and high pressure | |
| CN206377285U (en) | A kind of cutoff valve with high sealing performance | |
| CN210135315U (en) | Many orifices type water conservancy control valve | |
| CN204961861U (en) | Stop valve | |
| CN207093819U (en) | A kind of elastic sealing gate valve | |
| CN2869500Y (en) | Wear-free glove non-return valve | |
| CN205078834U (en) | Anti -fire ball vale | |
| CN209875982U (en) | Stop valve with excellent shock resistance | |
| CN202182200U (en) | Valve core for valve | |
| CN204267802U (en) | A kind of rolling opens and closes cross flow check valve | |
| CN204553897U (en) | The self-powering type seal arrangement of ultrahigh pressure balance stop valve | |
| CN203757006U (en) | Novel throttling cut-off emptying valve sleeve type blow-down valve | |
| CN204153213U (en) | Stopcock sealing configuration | |
| CN204664604U (en) | The linkage structure of stop valve inside | |
| CN203823113U (en) | Steam ball valve | |
| CN209638400U (en) | A kind of oil exploitation shut-off valve | |
| CN202659960U (en) | Ball valve special for hard sealing of polycrystalline silicon trichlorosilane medium | |
| CN210770289U (en) | Double-sealing-line high-performance butterfly valve |
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: 20160511 Termination date: 20171225 |